View Code of Problem 51

import java.util.*;
public class Main {
	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		int n = sc.nextInt();
		int arr[][] = new int[n][n];
		for (int i = 0; i < arr.length; i++) {
			for (int j = 0; j < arr.length; j++) {
				arr[i][j] = sc.nextInt();
			}
		}
		int sum = 0;
		for (int i = 0; i < arr.length; i++) {   
			for (int j = 0; j <= i; j++) {  
				sum += arr[i][j];	
			}
	}
		System.out.println(sum);
	}
	}

Double click to view unformatted code.


Back to problem 51