C++

Copy
#include <bits/stdc++.h>
using namespace std;

const int MAXN = 1e5;
const int MAXL = 26;
int freq[MAXN][MAXL];

// count(i, j, k) is the number of appearances of letter k between index i and
// j.
int count(int start, int end, int let) { return freq[end + 1][let] - freq[start][let]; }

Java

Copy
import java.io.*;
import java.util.*;

public class MoortalCowmbat {
	public static int MAXN = (int)1e5;
	public static int MAXL = 26;
	public static int[][] freq = new int[MAXN][MAXL];
	public static void main(String[] args) throws IOException {
		Kattio io = new Kattio("cowmbat");
		int N = io.nextInt();