Submission #1541862


Source Code Expand

#include "bits/stdc++.h"
using namespace std;

int main(){
	string s;
	cin>>s;
	long long int kai=0;
	long long int n=s.size();
	
	map<char,int> mp;
	for(int i=0;i<26;i++){
		mp['a'+i]=0;
	}
	
	for(int i=0;i<n;i++){
		mp[s[i]]++;
	}
	
	for(int i=0;i<26;i++){
		if(mp['a'+i]>1){
			long long int kait=0;
			for(int j=1;j<mp['a'+i]+1;j++)kait+=(j-1);
			kai+=kait;
		}
	}
	
	//cout<<kai<<endl;
	cout<<s.size()*(s.size()-1)/2+1-kai<<endl;
	
	return 0;
}

Submission Info

Submission Time
Task B - Reverse and Compare
User shichinomiya
Language C++14 (GCC 5.4.1)
Score 500
Code Size 480 Byte
Status AC
Exec Time 14 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 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 12 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 14 ms 640 KB
subtask_1_09.txt AC 11 ms 640 KB
subtask_1_10.txt AC 12 ms 640 KB
subtask_1_11.txt AC 14 ms 640 KB
subtask_1_12.txt AC 12 ms 640 KB
subtask_1_13.txt AC 11 ms 640 KB
subtask_1_14.txt AC 9 ms 640 KB
subtask_1_15.txt AC 10 ms 640 KB
subtask_1_16.txt AC 11 ms 640 KB
subtask_1_17.txt AC 10 ms 640 KB