C Program To Print Pyramid of Numbers

To print output like
1
2  3
4  5  6
7  8  9  1
2  3  4  5  6

#include<stdio.h>
#include<conio.h>
void main()
{
int i,j,c=1;
clrscr();
for(i=1;i<=5;i++)
{ printf("\n");
for(j=1;j<=i;j++)
{
printf("%4d",c);
c++;
if(c>9)
{
c=0;
c++;
}
}
}
getch();
}

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