Basic
Switch Case
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Operators
if Statement
Nested if
While Loop
For Loop
Array
Patterns
Excersises
Basic
Switch Case
Goto
Operators
if Statement
Nested if
While Loop
For Loop
Array
Patterns
Excersises
Others



Print Triangle Border Pattern Using For Loop In C Program


Program to print triangle border pattern of n rows using for loop.

Example : pgm.c

#include<stdio.h>
int main(){
    int i,j,n;
	printf("\n Enter the limit:");
	scanf("%d",&n);
    for(i=1;i<=n;i++){
        for(j=1;j<=n-i;j++){
            printf(" ");
        }
        for(j=1;j<=i;j++){
            if(i==1||i==n||j==1){
                printf("*");
            }else{
                printf(" ");
            }
        }
        for(j=1;j<i;j++){
             if(i==1||i==n||j==i-1){
                printf("*");
            }else{
                printf(" ");
            }
        }
        printf("\n");
    }
    return 0;
}

Output:

Enter the limit: 10
         *
        * *
       *   *
      *     *
     *       *
    *         *
   *           *
  *             *
 *               *
*******************