Osajono

/*
 * =====================================================================================
 *
 *       Filename:  a.cpp
 *
 *    Description:  
 *
 *        Version:  1.0
 *        Created:  09/29/2015 03:13:22 PM
 *       Revision:  none
 *       Compiler:  gcc
 *
 *         Author:  Leo Lahti (), leo.lahti1@gmail.com
 *   Organization:  
 *
 * =====================================================================================
 */
#define ll long long
#include<iostream>
#include<string>
#include<vector>
int main(){
	std::vector<ll> kirjaimet_luku;
	std::string kirjaimet = "ABCDEFGHIJKLMNOPQRSTUVWXYZ";
	for(unsigned ll i = 0; i < kirjaimet.length(); i++)
	{
		kirjaimet_luku.push_back(0);
	}
	std::string syote;
	std::cin>>syote;
	for (unsigned ll i = 0; i < syote.length(); i++){
		kirjaimet_luku[kirjaimet.find(syote.at(i))]++;
	}
	ll luku = 0;
	for(unsigned ll i = 0; i < kirjaimet.length(); i++)
	{
		ll permutaatio = 0;
		for (ll j = 0; j <= kirjaimet_luku[i]; j++){
			permutaatio+=(1*j);					
		}
		luku+=permutaatio;
	}
	std::cout<<luku<<std::endl;
	return 0;
}

Test 1

Group: 1

Verdict: ACCEPTED

Test 2

Group: 1

Verdict: ACCEPTED

Test 3

Group: 1

Verdict: ACCEPTED

Test 4

Group: 1

Verdict: ACCEPTED

Test 5

Group: 1

Verdict: ACCEPTED

Test 6

Group: 2

Verdict: ACCEPTED

Test 7

Group: 2

Verdict: ACCEPTED

Test 8

Group: 2

Verdict: ACCEPTED

Test 9

Group: 2

Verdict: ACCEPTED

Test 10

Group: 2

Verdict: ACCEPTED

Test 11

Group: 3

Verdict: ACCEPTED

Test 12

Group: 3

Verdict: ACCEPTED

Test 13

Group: 3

Verdict: ACCEPTED

Test 14

Group: 3

Verdict: ACCEPTED

Test 15

Group: 3

Verdict: ACCEPTED