Submission #1543031


Source Code Expand

#include<stdio.h>
#include<vector>
#include<algorithm>
#include<string>
#include<iostream>
using namespace std;
typedef long long ll;
ll d[1000];
int main()
{
	string s;
	cin>>s;
	for(int i=0;i<s.size();i++)d[s[i]]++;
	ll ans=(ll)(s.size())*(ll)(s.size()-1)/2+1;
	for(int i='a';i<='z';i++)ans-=d[i]*(d[i]-1)/2;
	printf("%lld\n",ans);
}

Submission Info

Submission Time
Task B - Reverse and Compare
User DEGwer
Language C++14 (GCC 5.4.1)
Score 500
Code Size 351 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 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 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