idk why these stuffs get stashed for so long and I didn't ever commit them

Chapter4/MatrixTrans/MatrixTrans.cpp

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+#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);
+}//

Chapter4/MatrixTrans/MatrixTrans.vcxproj

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