2023-12-18

This commit is contained in:
2023-12-18 23:29:15 +08:00
parent 117bf4ce75
commit 5667dabd66
42 changed files with 2425 additions and 0 deletions

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#include <iostream>
#include <string>
using namespace std;
int main()
{
char str[100];
cout << "请输入一串数字字符:";
cin.getline(str, 100);
int i = 0, s = 0;
while (str[i])
{
s = s * 10 + str[i] - '0';
i++;
}
cout << s << endl;
return 0;
}
// 1234 -> 1234

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@@ -0,0 +1,22 @@
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@@ -0,0 +1,45 @@
#include <iostream>
#include <string>
using namespace std;
void fun1(char* s, int n, int r)
{
int i = 0, t;
while (n)
{
t = n % r;
if (t >= 10)
s[i++] = t - 10 + 'A';
else
s[i++] = t + '0';
n = n / r;
}
s[i] = '\0';
}
void fun2(char* s)
{
char ch;
int len = strlen(s);
for (int i = 0; i < len / 2; i++)
{
ch = s[i];
s[i] = s[len - i - 1];
s[len - i - 1] = ch;
}
}
int main()
{
char s[200];
int n, r;
cout << "请输入您想转换的十进制数:";
cin >> n;
cout << "您想将十进制数" << n << "转换成多少进制的数?";
cin >> r;
fun1(s, n, r);
fun2(s);
cout << "十进制数" << n << "转换成" << r << "进制的数,结果为:" << s << endl;
return 0;
}
// 123 2 -> 1111011
// 123 8 -> 173
// 123 16 -> 7B

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@@ -0,0 +1,135 @@
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@@ -0,0 +1,33 @@
#include <iostream>
#include <string>
using namespace std;
int getInt(char* input, int* output)
{
int count = 0;
while (*input)
{
if (isdigit(*input))
{
char* start = input;
while (isdigit(*input))
input++;
output[count++] = stoi(string(start, input));
}
else
input++;
}
return count;
}
int main()
{
char str[25565];
int number[25565];
cout << "请输入一个字符串:";
cin.getline(str, 25565);
int count = getInt(str, number);
cout << "提取到的整数个数为:" << count << endl;
cout << "分别为: ";
for (int i = 0; i < count; i++)
cout << number[i] << " ";
return 0;
}

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@@ -0,0 +1,135 @@
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#include <iostream>
#include <cstring>
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str++;
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char string[25565], substring[25565];
cout << "请输入母字符串:";
cin.getline(string, 25565);
cout << "请输入子字符串:";
cin.getline(substring, 25565);
int count = fun(string, substring);
cout << "子字符串\"" << substring << "\"在母字符串\"" << string << "\"中出现的次数为:" << count << endl;
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