Submission #1540699


Source Code Expand

Copy
#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

Submission Time
Task B - Reverse and Compare
User naoya_t
Language C++14 (GCC 5.4.1)
Score 500
Code Size 1058 Byte
Status
Exec Time 2 ms
Memory 384 KB

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

Set Name Score / Max Score Test Cases
Sample 0 / 0 sample_01.txt, sample_02.txt, sample_03.txt
All 500 / 500 sample_01.txt, sample_02.txt, sample_03.txt, sample_01.txt, sample_02.txt, sample_03.txt, subtask_1_01.txt, subtask_1_02.txt, subtask_1_03.txt, subtask_1_04.txt, subtask_1_05.txt, subtask_1_06.txt, subtask_1_07.txt, subtask_1_08.txt, subtask_1_09.txt, subtask_1_10.txt, subtask_1_11.txt, subtask_1_12.txt, subtask_1_13.txt, subtask_1_14.txt, subtask_1_15.txt, subtask_1_16.txt, subtask_1_17.txt
Case Name Status Exec Time Memory
sample_01.txt 1 ms 256 KB
sample_02.txt 1 ms 256 KB
sample_03.txt 1 ms 256 KB
subtask_1_01.txt 1 ms 256 KB
subtask_1_02.txt 2 ms 384 KB
subtask_1_03.txt 1 ms 256 KB
subtask_1_04.txt 1 ms 256 KB
subtask_1_05.txt 1 ms 256 KB
subtask_1_06.txt 1 ms 256 KB
subtask_1_07.txt 1 ms 256 KB
subtask_1_08.txt 2 ms 384 KB
subtask_1_09.txt 1 ms 384 KB
subtask_1_10.txt 2 ms 384 KB
subtask_1_11.txt 1 ms 384 KB
subtask_1_12.txt 2 ms 384 KB
subtask_1_13.txt 2 ms 384 KB
subtask_1_14.txt 2 ms 384 KB
subtask_1_15.txt 2 ms 384 KB
subtask_1_16.txt 2 ms 384 KB
subtask_1_17.txt 2 ms 384 KB