Matrix Pattern Printing - First / Last Higher - C

Given an integer N as the input, print the pattern as given in the Example Input/Output section. 

Input Format: The first line contains N. 

Output Format: N lines containing the desired pattern. 

Boundary Conditions: 

• 2 <= N <= 100 

Example Input/Output 1: 

Input: 

3 

Output: 

1 1 1 2 

3 2 2 2 

3 3 3 4

Source Code:

#include<stdio.h>

int main()

{

int N;

scanf("%d",&N);

int i,j,a=1;

for(i=0;i<N;i++)

{

    for(j=0;j<=N;j++)

    {

        if(i%2==0)

        {

            if(j==N)

                printf("%d ",a+1);

            else

                printf("%d ",a);

        }

        else

        {

            if(j==0)

                printf("%d ",a+1);

            else

                printf("%d ",a);

        }

    }

    a++;

    printf("\n");

}

}