Print triangle using asteriks increasing by one in each row

Sample OUTPUT

*
**
***
****
*****
******
*******



#include<stdio.h>
#include<stdlib.h>
void line()
{
int i,j;
printf("\n");
for(i=1;i<=42;i++)
printf("=");
}
void header()
{
printf("\n");
printf("Built and Designed by Arslan Malik\n\n www.CworldbyAS.blogspot.com");
printf("\n");
}
int main()
{
line();
header();
line();

int a,b,c;

for (a=0;a<=10;a++)
{
    for(b=1;b<=a;b++)
    printf("*");
    printf("\n");
}
line();
return 0;
}