Submission #1540699

---

Source Code Expand

#include <iostream>
#include <sstream>
#include <fstream>

#include <cstdio>
#include <cstdlib>
#include <cmath>
#include <cctype>
#include <cstring>

#include <algorithm>
#include <numeric>
#include <functional>
#include <string>
#include <vector>
#include <deque>
#include <stack>
#include <queue>
#include <list>
#include <map>
// #include <unordered_map>
#include <set>
#include <utility>
#include <bitset>
#include <limits>
#include <climits>
using namespace std;

#ifdef DEBUG
#define NDEBUG
#include "cout11.h"
#endif
#undef NDEBUG
#include <cassert>

typedef long long ll;
#define rep(var,n)  for(int var=0;var<(n);++var)

int main() {
    char buf[200003];
    fgets(buf,200003,stdin);
    int L=0;
    vector<ll> cnt(26, 0);
    rep(i, 200003){
        if (buf[i] < 'a') {
            buf[i] = 0; L = i; break;
        }
        ++cnt[buf[i]-'a'];
    }
    ll ans = 0;
    rep(i,26){
        ans += cnt[i] * (L - cnt[i]);
    }
    ans = ans/2 + 1;
    cout << ans << endl;
    return 0;
}

Submission Info

Compile Error

./Main.cpp: In function ‘int main()’:
./Main.cpp:41:28: warning: ignoring return value of ‘char* fgets(char*, int, FILE*)’, declared with attribute warn_unused_result [-Wunused-result]
     fgets(buf,200003,stdin);
                            ^

Judge Result