I don't know why this happens to me. Can you please post the test#2 so that I can debug it.
My Code is :
#include <bits/stdc++.h>

using namespace std;

#define frj(a,b)    for(j=a;j<=b;j++)
#define fri(a,b)    for(i=a;i<=b;i++)
#define re return

int main()
{
    int n,i,j, matrix[101][101];

    cin >> n;
    fri(0, n-1)
    {
        frj(0, n-1)
        {
            cin >> matrix[i][j];
        }
    }

    cout << matrix[0][0] << " ";
    i =1, j=0;
    int iNext = 1, jNext = 0;

    while (iNext != n-1 || jNext != n-1)
    {
        i=iNext, j=jNext;
        while (i >= jNext && j<=iNext)
        {
            cout << matrix[i--][j++] << " ";
        }
        if(iNext == n-1)
        {
            jNext++;
        }
        else
        {
            iNext++;
            jNext=0;
        }
    }
    cout << matrix[n-1][n-1] << " ";


    re 0;
}

Edited by author 30.09.2019 20:18