Osajono

import java.util.ArrayList;


public class Osajono4 {

	 public static void main(String[] args)
	 {
		 IO io = new IO();
		 
		 ArrayList<Character> kirjaimet = new ArrayList<>();
		 
		 String input = io.next();
		 
		 int inputLength = input.length();
		 int points = 0;
		 
		 for(int i = 0; i < inputLength; i++){
			 kirjaimet.add(input.charAt(i));
		 }
		 
		 
		 for(int y = 0; y < inputLength; y++){
			 
			 char currentChar = kirjaimet.get(y);
			 
			 for(int a= y; a < inputLength; a++){
				 
				 char nextChar = kirjaimet.get(Math.min(a,inputLength-1));
				 Boolean isIt = currentChar==nextChar;
				 if (isIt){
					 points++;
				 }
			 }
		 }
		 io.println(points);
	     io.close();
	 }
	 
}

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: TIME LIMIT EXCEEDED

Test 12

Group: 3

Verdict: TIME LIMIT EXCEEDED

Test 13

Group: 3

Verdict: TIME LIMIT EXCEEDED

Test 14

Group: 3

Verdict: TIME LIMIT EXCEEDED

Test 15

Group: 3

Verdict: TIME LIMIT EXCEEDED