idk why these stuffs get stashed for so long and I didn't ever commit them
This commit is contained in:
203
Chapter4/AddMatrix/AddMatrix.cpp
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203
Chapter4/AddMatrix/AddMatrix.cpp
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@@ -0,0 +1,203 @@
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#include<iostream>//cout,cin
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#include"process.h"//exit()
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#include"stdio.h"//EOF,NULL
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using namespace std;
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struct MTNode // 三元组
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{
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int i, j; // 行号,列号
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int e; // 非零元
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MTNode* next; // 指向同行下一个结点
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};
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typedef struct
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{
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int mu, nu, tu; // 行数、列数、非零元个数
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MTNode** rops; // 存放各行链表的头指针
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}LMatrix;
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int cmp(int a, int b) // 列号比较
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{
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if (a < b) return -1;
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else if (a == b) return 0;
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else return 1;
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}
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void NodeCopy(MTNode*& s, MTNode* x) // 结点拷贝
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{
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s->e = x->e; s->i = x->i; s->j = x->j;
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}
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void AddNode(MTNode*& lp, MTNode*& lq, MTNode* s) // 表尾添加结点
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{
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MTNode* p;
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p = new MTNode;
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NodeCopy(p, s);
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p->next = NULL;
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if (lp == NULL) // 首元结点
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{
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lp = p;
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lq = p;
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}
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else // 非首元结点
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{
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lq->next = p;
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lq = p;
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}
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}//
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LMatrix MatrixAdd(LMatrix ma, LMatrix mb) // 求矩阵和
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{
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LMatrix mc;
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MTNode* pa, * pb, * pc; // 分别指向被加数、加数、和矩阵行向量首元结点
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MTNode* s;//
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int i, sum;
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int m, n; // 行数,列数
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int flag = 1;
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m = ma.mu;
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n = ma.nu;
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mc.mu = m; mc.nu = n; mc.tu = 0; mc.rops = NULL;
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if (mc.rops) delete[] mc.rops;
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mc.rops = new MTNode * [m];
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for (i = 0; i < m; i++)
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mc.rops[i] = NULL; // C行指针向量初始化
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for (i = 0; i < m; i++)
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{
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pa = ma.rops[i];
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pb = mb.rops[i];
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pc = mc.rops[i];
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while (pa && pb) // 被加矩阵、加矩阵行链不空
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{
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flag = 1;
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if (pa->j < pb->j)
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{
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s = new MTNode;//
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NodeCopy(s, pa);
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s->next = NULL;
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pa = pa->next;
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}
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else if (pa->j == pb->j)
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{
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sum = pa->e + pb->e;
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if (sum == 0) flag = 0;
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else
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{
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s = new MTNode;
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NodeCopy(s, pa);
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s->e = sum;
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s->next = NULL;
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}
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pa = pa->next; pb = pb->next;//pa,pb后移
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}
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else
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{
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s = new MTNode;
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NodeCopy(s, pb); // 复制pb所指结点
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pb = pb->next; // pb后移
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s->next = NULL;
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}
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if (flag) // 有新结点生成
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{
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mc.tu++;
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AddNode(mc.rops[i], pc, s);
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}
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}//while
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if (pa) // pa不空,复制pa剩余链到和矩阵中
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{
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while (pa)
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{
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s = new MTNode;
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NodeCopy(s, pa); pa = pa->next;
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AddNode(mc.rops[i], pc, s);
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}//while
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}//if(pa)
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if (pb) // pb不空,复制pb剩余链到和矩阵中
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{
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while (pb)
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{
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s = new MTNode;
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NodeCopy(s, pb); pb = pb->next;
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AddNode(mc.rops[i], pc, s);
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}//while
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}//if(pb)
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}//for
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return mc;
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}//MAdd
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void MDisp(LMatrix a)
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{
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MTNode* p;
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int i, j, c = 0;
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for (i = 0; i < a.mu; i++)
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{
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p = a.rops[i];
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for (j = 0; j < a.nu; j++)
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{
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if (p == NULL)
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cout << '\t' << c;
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else if (j < p->j)
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cout << '\t' << c;
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else
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{
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cout << '\t' << p->e;
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p = p->next;
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}
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}//for
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cout << endl;
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}//for
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}//MatrixDisp
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LMatrix MCreate(int d[][3], int m, int n, int k)
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{ // 由三元组的二维数组生成行向量稀疏存储矩阵
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LMatrix M = { m,n,k,NULL };
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int i, r1, r2;
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MTNode* s, * p; // 工作指针
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if (M.rops) delete[] M.rops;
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M.rops = new MTNode * [m];
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for (i = 0; i < m; i++)
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M.rops[i] = NULL;
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r1 = m;
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p = M.rops[r1];//
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for (i = 0; i < k; i++) // 扫描非零元数组
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{
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s = new MTNode;
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s->i = d[i][0];
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s->j = d[i][1];
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s->e = d[i][2];
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r2 = s->i; // 非零元所在行
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if (r2 != r1) // 创建链表第1个结点
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{
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M.rops[r2] = s;
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s->next = NULL;
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p = s;
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r1 = r2;
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}
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else // 创建链表非首元结点
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{
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s->next = p->next;
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p->next = s;
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p = s;
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}
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}//for
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return M;
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}//MCreate
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void main()
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{
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//MTNode *p;
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LMatrix ma, mb, mc;
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int m = 4, n = 6; // 行数,列数
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int da[5][3] = { {0,1,3},{1,1,2},{1,3,5},{3,0,9},{3,5,1} };
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int db[4][3] = { {0,2,7},{1,1,6},{1,3,-5},{2,1,4} };
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ma = MCreate(da, 4, 6, 5); // 构造ma矩阵
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cout << "ma=" << endl;
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MDisp(ma); // 显示ma矩阵
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mb = MCreate(db, 4, 6, 4); // 构造mb矩阵
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cout << "mb=" << endl;
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MDisp(mb); // 显示mb矩阵
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mc = MatrixAdd(ma, mb); // 求mc=ma+mb
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cout << "mc=ma+mb=" << endl;
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MDisp(mc); // 输出和矩阵
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}
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135
Chapter4/AddMatrix/AddMatrix.vcxproj
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135
Chapter4/AddMatrix/AddMatrix.vcxproj
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@@ -0,0 +1,135 @@
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Normal file
22
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Normal file
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41
Chapter4/Chapter4.sln
Normal file
41
Chapter4/Chapter4.sln
Normal file
@@ -0,0 +1,41 @@
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SolutionGuid = {32AA252A-8427-41AB-8DDD-F9DC7EE96753}
|
||||
EndGlobalSection
|
||||
EndGlobal
|
||||
130
Chapter4/MatrixTrans/MatrixTrans.cpp
Normal file
130
Chapter4/MatrixTrans/MatrixTrans.cpp
Normal file
@@ -0,0 +1,130 @@
|
||||
#include<iostream>//cout,cin
|
||||
using namespace std;
|
||||
|
||||
|
||||
struct MNode //三元组结点
|
||||
{
|
||||
int i, j; //行号,列号
|
||||
int e; //非零元
|
||||
};
|
||||
|
||||
|
||||
struct TSMatrix
|
||||
{
|
||||
int mu, nu, tu; // 行数、列数、非零元个数
|
||||
MNode* data; // 三元组表
|
||||
};
|
||||
|
||||
TSMatrix MCreate(int d[][3], int m, int n, int k) //由三元组的二维数组生成行向量稀疏存储矩阵
|
||||
{
|
||||
TSMatrix M = { m,n,k,NULL };
|
||||
if (k != 0)
|
||||
M.data = new MNode[k];
|
||||
for (int i = 0; i < k; i++)
|
||||
{
|
||||
M.data[i].i = d[i][0];
|
||||
M.data[i].j = d[i][1];
|
||||
M.data[i].e = d[i][2];
|
||||
}
|
||||
return M;
|
||||
}//
|
||||
|
||||
|
||||
void MDisp(TSMatrix a) //矩阵显示
|
||||
{
|
||||
MNode p;
|
||||
int i, j, k = 0, c = 0;
|
||||
p = a.data[k];
|
||||
for (i = 0; i < a.mu; i++)
|
||||
{
|
||||
for (j = 0; j < a.nu; j++)
|
||||
{
|
||||
if (k < a.tu && p.i == i && p.j == j)
|
||||
{
|
||||
cout << '\t' << p.e;
|
||||
k++;
|
||||
if (k < a.tu) p = a.data[k];
|
||||
}
|
||||
else
|
||||
{
|
||||
cout << '\t' << c;
|
||||
}
|
||||
}//for
|
||||
cout << endl;
|
||||
cout << endl;
|
||||
}//for
|
||||
}//MatrixDisp
|
||||
|
||||
//算法4.1 转置算法一
|
||||
void MatrixTrans_1(TSMatrix A, TSMatrix& B)
|
||||
{//
|
||||
int col, p, q;
|
||||
B.mu = A.nu; B.nu = A.mu; B.tu = A.tu; //B的行数、列数、非零元个数分别等于A的列数、行数和非零元个数
|
||||
if (B.tu) // 矩阵B有非零元
|
||||
{
|
||||
q = 0;
|
||||
for (col = 0; col < A.nu; ++col) // 按列扫描A矩阵
|
||||
for (p = 0; p < A.tu; ++p)
|
||||
if (A.data[p].j == col) // col列有非零元
|
||||
{
|
||||
B.data[q].i = A.data[p].j; // 交换行、列号,生成转置元素
|
||||
B.data[q].j = A.data[p].i;
|
||||
B.data[q].e = A.data[p].e;
|
||||
++q;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
|
||||
//算法4.2 快速转置
|
||||
void MatrixTrans_2(TSMatrix A, TSMatrix& B)
|
||||
{
|
||||
int col, i, k, q;
|
||||
int* num, * cpot;
|
||||
B.mu = A.nu; B.nu = A.mu; B.tu = A.tu; //B的行数、列数、非零元个数分别等于A的列数、行数和非零元个数
|
||||
num = new int[B.nu];
|
||||
cpot = new int[B.nu];
|
||||
if (B.tu) // 非零元个数不为零,实施转置
|
||||
{
|
||||
for (col = 0; col < A.nu; col++) //A中每一列非零元个数初始化为0
|
||||
num[col] = 0;
|
||||
for (i = 0; i < A.tu; i++) //求矩阵A中每一列非零元个数
|
||||
num[A.data[i].j]++;
|
||||
cpot[0] = 0; //A中第0列首个非零元在B中的下标
|
||||
for (col = 1; col <= A.nu; ++col) // 求A中每一列首个非零元在B中的下标
|
||||
cpot[col] = cpot[col - 1] + num[col - 1];
|
||||
for (k = 0; k < A.tu; ++k) //扫描A的三元组表
|
||||
{
|
||||
col = A.data[k].j; //当前三元组列号
|
||||
q = cpot[col]; //当前三元组在B中的下标
|
||||
B.data[q].i = A.data[k].j;
|
||||
B.data[q].j = A.data[k].i;
|
||||
B.data[q].e = A.data[k].e;
|
||||
cpot[col]++; // 预置同一列下一个三元组在B中的下标
|
||||
}//for
|
||||
}//if
|
||||
}//
|
||||
|
||||
|
||||
|
||||
void main()
|
||||
{
|
||||
TSMatrix ma, mb1, mb2;
|
||||
int m1 = 4, n1 = 6, k1 = 6; //被乘矩阵行数,列数,非零元个数
|
||||
int da[6][3] = { {0,2,11},{0,4,12},{1,3,22},
|
||||
{2,1,31}, {2,3,32},{3,0,41} }; //ma阵的非零元
|
||||
ma = MCreate(da, m1, n1, k1); //生成三元组顺序存储的ma阵
|
||||
cout << "ma=" << endl;
|
||||
MDisp(ma); //显示ma阵
|
||||
mb1.data = new MNode[ma.tu];
|
||||
mb2.data = new MNode[ma.tu];
|
||||
cout << "方法一:直接取,顺序存" << endl; //用方法一转置矩阵
|
||||
MatrixTrans_1(ma, mb1);
|
||||
cout << "mb=" << endl; //显示转置矩阵
|
||||
MDisp(mb1);
|
||||
cout << "方法二:顺序取,直接存" << endl; //用方法二转置矩阵
|
||||
MatrixTrans_2(ma, mb2);
|
||||
cout << "mb=" << endl; //显示转置矩阵
|
||||
MDisp(mb2);
|
||||
}//
|
||||
135
Chapter4/MatrixTrans/MatrixTrans.vcxproj
Normal file
135
Chapter4/MatrixTrans/MatrixTrans.vcxproj
Normal file
@@ -0,0 +1,135 @@
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||||
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||||
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||||
<ProjectConfiguration Include="Debug|Win32">
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||||
<Configuration>Debug</Configuration>
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||||
<Platform>Win32</Platform>
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||||
</ProjectConfiguration>
|
||||
<ProjectConfiguration Include="Release|Win32">
|
||||
<Configuration>Release</Configuration>
|
||||
<Platform>Win32</Platform>
|
||||
</ProjectConfiguration>
|
||||
<ProjectConfiguration Include="Debug|x64">
|
||||
<Configuration>Debug</Configuration>
|
||||
<Platform>x64</Platform>
|
||||
</ProjectConfiguration>
|
||||
<ProjectConfiguration Include="Release|x64">
|
||||
<Configuration>Release</Configuration>
|
||||
<Platform>x64</Platform>
|
||||
</ProjectConfiguration>
|
||||
</ItemGroup>
|
||||
<PropertyGroup Label="Globals">
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||||
<VCProjectVersion>17.0</VCProjectVersion>
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||||
<Keyword>Win32Proj</Keyword>
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||||
<ProjectGuid>{ae81732d-d011-4a36-9d89-0c258adb5627}</ProjectGuid>
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||||
<RootNamespace>MatrixTrans</RootNamespace>
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||||
<WindowsTargetPlatformVersion>10.0</WindowsTargetPlatformVersion>
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||||
</PropertyGroup>
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||||
<Import Project="$(VCTargetsPath)\Microsoft.Cpp.Default.props" />
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||||
<PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'" Label="Configuration">
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||||
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<UseDebugLibraries>true</UseDebugLibraries>
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||||
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||||
<CharacterSet>Unicode</CharacterSet>
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||||
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||||
<PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'" Label="Configuration">
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||||
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||||
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||||
<PlatformToolset>v143</PlatformToolset>
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||||
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||||
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||||
<PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'" Label="Configuration">
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<PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'" Label="Configuration">
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<PlatformToolset>v143</PlatformToolset>
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||||
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||||
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<Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
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<ImportGroup Label="PropertySheets" Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">
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<Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
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||||
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<ImportGroup Label="PropertySheets" Condition="'$(Configuration)|$(Platform)'=='Release|x64'">
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||||
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<PropertyGroup Label="UserMacros" />
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<ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">
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<SDLCheck>true</SDLCheck>
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<PreprocessorDefinitions>WIN32;_DEBUG;_CONSOLE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
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<Link>
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<SubSystem>Console</SubSystem>
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||||
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<ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">
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<ClCompile>
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<WarningLevel>Level3</WarningLevel>
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<IntrinsicFunctions>true</IntrinsicFunctions>
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<SDLCheck>true</SDLCheck>
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<PreprocessorDefinitions>WIN32;NDEBUG;_CONSOLE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
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<Link>
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||||
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<ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'">
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<ClCompile>
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<ImportGroup Label="ExtensionTargets">
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||||
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||||
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22
Chapter4/MatrixTrans/MatrixTrans.vcxproj.filters
Normal file
22
Chapter4/MatrixTrans/MatrixTrans.vcxproj.filters
Normal file
@@ -0,0 +1,22 @@
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<Filter Include="源文件">
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<UniqueIdentifier>{4FC737F1-C7A5-4376-A066-2A32D752A2FF}</UniqueIdentifier>
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<Extensions>cpp;c;cc;cxx;c++;cppm;ixx;def;odl;idl;hpj;bat;asm;asmx</Extensions>
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<Filter Include="头文件">
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<UniqueIdentifier>{93995380-89BD-4b04-88EB-625FBE52EBFB}</UniqueIdentifier>
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<Filter Include="资源文件">
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<UniqueIdentifier>{67DA6AB6-F800-4c08-8B7A-83BB121AAD01}</UniqueIdentifier>
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</ClCompile>
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||||
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||||
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||||
Reference in New Issue
Block a user