Submission #1540300

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Source Code Expand

#include <bits/stdc++.h>
#define fi first
#define se second
#define pb push_back
#define fio ios::sync_with_stdio(0),cin.tie(0),cout.tie(0)
using namespace std;
typedef pair<int,int> pii;
typedef vector<int> vi;
typedef vector<vi> vvi;
typedef long long ll;

const int N = 2e5+5;
int f[26],l;
char s[N];

int main() {	
	scanf("%s",s), l = strlen(s);
	ll ans = 1;
	for(int i = 0; i < l; ++i) {
		int id = s[i]-'a';
		++f[id];
		int neq = 0;
		for(int j = 0; j < 26; ++j) {
			if(j == id) continue;
			neq += f[j];
		}
		ans += neq;
	}
	printf("%lld\n",ans);
}

Submission Info

Compile Error

./Main.cpp: In function ‘int main()’:
./Main.cpp:17:30: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
  scanf("%s",s), l = strlen(s);
                              ^

Judge Result