Subject : Structured Programming Approach

Title : Control Structures

Difficulty : Medium

Program:

#include<stdio.h>

#include<conio.h>

void main()

{

    int i,j,n;

    clrscr();

    printf(“Enter the number of lines:”);

    scanf(“%d”,&n);

    for(i=1;i<=n;i++)

    {

        for(j=1;j<=n-i;j++)

        {

            printf(“ “);

        }

        for(j=1;j<=i;j++)

        {

            printf(“%d”,j);

        }

        for(j=i-1;j>=1;j--)

        {

            printf(“%d”,j);

        }

        printf(“\n”);

    }

    getch();

}

Output: