Submission #6359164


Source Code Expand

#include<iostream>
#include<iomanip>
#include<cstdio>
#include<string>
#include<cstring>
#include<climits>
#include<algorithm>
#include<vector>
#include<cmath>
#include<map>
#include<set>
#include<stack>
#include<queue>
#include<tuple>
#include<list>
#include<unordered_map>
#define ll long long
#define pii pair<int,int>
#define pll pair<ll,ll>
#define vii vector<int>
#define vll vector<ll>
#define lb lower_bound
#define pb push_back
#define mp make_pair
#define rep(i,n) for(ll i=0;i<n;i++)
#define rep2(i,a,b) for(ll i=a;i<b;i++)
#define repr(i,n) for(ll i=n-1;i>=0;i--)
#define all(x) x.begin(),x.end()
#define INF (1 << 30) - 1
#define LLINF (1LL << 61) - 1
// #define int ll
using namespace std;
const int MOD = 1000000007;
const int MAX = 510000;


int main(){
    cin.tie(0);
    ios::sync_with_stdio(false);
    string s;
    cin>>s;
    map<int,int> mp;
    ll n=s.size();
    rep(i,n){
        mp[s[i]-'a']++;
    }
    ll ans=n*(n-1)/2+1;
    for(auto i:mp){
        if(i.second>1){
            ans-=(i.second*(i.second-1)/2);
        }
    }
    cout<<ans<<endl;
    return 0;
}

Submission Info

Submission Time
Task B - Reverse and Compare
User t6is
Language C++14 (GCC 5.4.1)
Score 0
Code Size 1147 Byte
Status WA
Exec Time 6 ms
Memory 720 KB

Judge Result

Set Name Sample All
Score / Max Score 0 / 0 0 / 500
Status
AC × 3
AC × 15
WA × 8
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 WA 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 2 ms 256 KB
subtask_1_08.txt AC 6 ms 720 KB
subtask_1_09.txt WA 3 ms 720 KB
subtask_1_10.txt WA 4 ms 720 KB
subtask_1_11.txt AC 6 ms 720 KB
subtask_1_12.txt WA 3 ms 720 KB
subtask_1_13.txt WA 3 ms 720 KB
subtask_1_14.txt WA 2 ms 720 KB
subtask_1_15.txt WA 2 ms 720 KB
subtask_1_16.txt WA 3 ms 720 KB
subtask_1_17.txt AC 3 ms 720 KB