子串判断
#define _CRT_SECURE_NO_WARNINGS
#include <stdio.h>
int main()
{
char a[2][20] = {0};
int n = 0;
int i, j = 0;
int s = 0;
int count = 0;
for (n = 0; n <= 1; n++)
{
fgets(a[n], 19, stdin);
}
for (j = 0; a[1][j] != '\0'; j++)
{
s++;
for (i = 0; a[0][i] != '\0'; i++)
{
if (a[0][i] == a[1][j])
count++;
}
}
if (s == count)
printf("YES");
else
printf("NO");
return 0;
}