Submission #1540065


Source Code Expand

#include <bits/stdc++.h>
#define rep(i,n) for(int i=0;i<(int)(n);i++)
#define rep1(i,n) for(int i=1;i<=(int)(n);i++)
#define all(c) c.begin(),c.end()
#define pb push_back
#define fs first
#define sc second
#define show(x) cout << #x << " = " << x << endl
#define chmin(x,y) x=min(x,y)
#define chmax(x,y) x=max(x,y)
using namespace std;
template<class S,class T> ostream& operator<<(ostream& o,const pair<S,T> &p){return o<<"("<<p.fs<<","<<p.sc<<")";}
template<class T> ostream& operator<<(ostream& o,const vector<T> &vc){o<<"sz = "<<vc.size()<<endl<<"[";for(const T& v:vc) o<<v<<",";o<<"]";return o;}
typedef long long ll;
int main(){
	string s;
	cin>>s;
	ll cnt[26]={};
	for(char c:s) cnt[c-'a']++;
	ll ans = 1;
	rep(i,26) rep(j,i) ans += cnt[i]*cnt[j];
	cout<<ans<<endl;
}

Submission Info

Submission Time
Task B - Reverse and Compare
User sigma425
Language C++14 (GCC 5.4.1)
Score 500
Code Size 798 Byte
Status AC
Exec Time 8 ms
Memory 640 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 2 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 8 ms 640 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 8 ms 640 KB
subtask_1_09.txt AC 8 ms 640 KB
subtask_1_10.txt AC 8 ms 640 KB
subtask_1_11.txt AC 8 ms 640 KB
subtask_1_12.txt AC 8 ms 640 KB
subtask_1_13.txt AC 8 ms 640 KB
subtask_1_14.txt AC 8 ms 640 KB
subtask_1_15.txt AC 8 ms 640 KB
subtask_1_16.txt AC 8 ms 640 KB
subtask_1_17.txt AC 8 ms 640 KB