Submission #2862833

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Source Code Expand

#include <stdio.h>
#include <string.h>

char S[30];
int cnt[26];

int main(){

	scanf("%s",S);

	int len=strlen(S);

	int i;

	for(i=0;i<len;i++){
	cnt[S[i]-'a']++;
	}

	int flag=0;

	for(i=0;i<26;i++){
		if(cnt[i]>1){flag=1;}
	}
	if(flag==0){printf("yes\n");}
	else{printf("no\n");}

return 0;
}

Submission Info

Compile Error

./Main.c: In function ‘main’:
./Main.c:9:2: warning: ignoring return value of ‘scanf’, declared with attribute warn_unused_result [-Wunused-result]
  scanf("%s",S);
  ^

Judge Result