1.   write a C program to print a triangle.

*

**

***

****

*****

solution:

#include<stdio.h>

#include<conio.h>

void main()

{

int i,j,a;

printf("enter the any number to print a triangle\n\t");

scanf("%d",&a);

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

{

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

{

printf("*");

}

printf("\n");

}

getch();

}