Half pyramid pattern of numbers

Program:

#include < stdio.h >

int main()
{
int rows;
printf("Number of rows: ");
scanf("%d","rows);
//first loop for printing
for(int i=1;i<=rows;i++)
{
//second loop for printing similar number in each
//rows
for(int j=1;j<=i;j++)
printf("%d",i);
}
printf("\n");
return 0;
}