백준 15724: 주지수

https://www.acmicpc.net/problem/15724

package Baekjoon.boj15724;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.util.StringTokenizer;

public class Main {

    static int N, M;
    static int[][] dp;

    public static void main(String[] args) throws IOException {
        BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
        StringTokenizer st = new StringTokenizer(br.readLine());
        StringBuilder sb = new StringBuilder();
        N = Integer.parseInt(st.nextToken());
        M = Integer.parseInt(st.nextToken());
        dp = new int[N + 1][M + 1];

        for (int i = 1; i <= N; i++) {
            st = new StringTokenizer(br.readLine());
            for (int j = 1; j <= M; j++) {
                int tmp = Integer.parseInt(st.nextToken());
                dp[i][j] = dp[i - 1][j] + dp[i][j - 1] + tmp - dp[i - 1][j - 1];
            }
        }

        int K = Integer.parseInt(br.readLine());

        for (int i = 1; i <= K; i++) {
            int sum = 0;

            st = new StringTokenizer(br.readLine());
            int a = Integer.parseInt(st.nextToken());
            int b = Integer.parseInt(st.nextToken());
            int c = Integer.parseInt(st.nextToken());
            int d = Integer.parseInt(st.nextToken());

            sum = dp[c][d] - dp[a - 1][d] - dp[c][b - 1] + dp[a - 1][b - 1];
            sb.append(sum).append("\n");
        }

        System.out.println(sb.toString());
    }
}