Submission #1545302

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Source Code Expand

#include<cstdio>
#include<algorithm>
using namespace std;
char p[301000];
long long S = 1;
int C[26];
int main(){
    int i, j;
    scanf("%s",p);
    for(i=0;p[i];i++)C[p[i]-'a']++;
    for(i=0;i<26;i++)for(j=i+1;j<26;j++)S += 1ll*C[i]*C[j];
    printf("%lld\n",S);
}

Submission Info

Compile Error

./Main.cpp: In function ‘int main()’:
./Main.cpp:9:18: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
     scanf("%s",p);
                  ^

Judge Result