Submission #1540656


Source Code Expand

#include <bits/stdc++.h>
#define pb push_back
#define long long long
#define pll pair < long , long >
#define vll vector < pll >
#define ml map < long , long >
#define mll map < pll , long >
#define x first
#define y second
#define vl vector < long >
#define io ios_base::sync_with_stdio(false);cin.tie(NULL);cout.tie(NULL);
using namespace std;

int main()
{
    io
    string s;
    long i,n,mp[26]={0},w=0,ss=0;
    cin>>s;
    n=s.length();
    for(i=0;i<n;++i)
    mp[s[i]-'a']++;
    for(i=0;i<26;++i)
    {
        w+=mp[i];
        ss+=mp[i]*mp[i];
    }
    cout<<(w*w-ss)/2+1  ;
    return 0;
}

Submission Info

Submission Time
Task B - Reverse and Compare
User hitman623
Language C++14 (GCC 5.4.1)
Score 500
Code Size 635 Byte
Status AC
Exec Time 2 ms
Memory 720 KB

Judge Result

Set Name Sample All
Score / Max Score 0 / 0 500 / 500
Status
AC × 3
AC × 23
Set Name Test Cases
Sample sample_01.txt, sample_02.txt, sample_03.txt
All 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 AC 1 ms 256 KB
sample_02.txt AC 1 ms 256 KB
sample_03.txt AC 1 ms 256 KB
subtask_1_01.txt AC 1 ms 256 KB
subtask_1_02.txt AC 2 ms 720 KB
subtask_1_03.txt AC 1 ms 256 KB
subtask_1_04.txt AC 1 ms 256 KB
subtask_1_05.txt AC 1 ms 256 KB
subtask_1_06.txt AC 1 ms 256 KB
subtask_1_07.txt AC 1 ms 256 KB
subtask_1_08.txt AC 2 ms 720 KB
subtask_1_09.txt AC 2 ms 720 KB
subtask_1_10.txt AC 2 ms 720 KB
subtask_1_11.txt AC 2 ms 720 KB
subtask_1_12.txt AC 2 ms 720 KB
subtask_1_13.txt AC 2 ms 720 KB
subtask_1_14.txt AC 2 ms 720 KB
subtask_1_15.txt AC 2 ms 720 KB
subtask_1_16.txt AC 2 ms 720 KB
subtask_1_17.txt AC 2 ms 720 KB