题解 | #表示数字#

#include <stdio.h>
#include <string.h>
int main() {
    char str[101] = { 0 };
    scanf("%s", str);
    int len = strlen(str);
    char res[201] = { 0 };
    int pos = 0;
    for (int i = 0; i < len; i++)
    {
        if (str[i] >= '0' && str[i] <= '9')
        {
            int c = 1;
            char arr[101] = { 0 };
            arr[0] = '*';
            while (str[i] >= '0' && str[i] <= '9')
            {
                arr[c++] = str[i];
                i++;
            }
            arr[c] = '*';
            strncpy(res + pos, arr, c + 1);
            pos = pos + c+1;
        }
        res[pos++] = str[i];
    }
    printf("%s\n", res);
    return 0;
}