Files
PAT/PATAdvanced/1050.c
2022-01-08 03:01:51 +08:00

18 lines
247 B
C

#include <stdio.h>
int main()
{
char c, s1[10001];
int s2[128] = {0};
scanf("%[^\n]%c", s1, &c);
while ((c = getchar()) != EOF && c != '\n')
s2[(int)c] = 1;
for (char *p = s1; *p; p++)
if (!s2[(int)(*p)])
putchar(*p);
return 0;
}