Write a loop statement that will show the following output

Question

1
12
123
1234
12345

Answer 1

#include<stdio.h> 
void main() 
{ 
  int i,j,n; 
  printf("Enter the number of lines:"); 
  scanf("%d",&n); 
  for(i=1;i<=n;i++) 
  { 
    for(j=1;j<=i;j++) 
    { 
     printf("%d",j); 
    } 
    printf("\n"); 
  } 
} 

The output would be 
Enter the number of lines:5 
1 
12 
123 
1234 
12345 

Answer 2

#include<stdio.h>
main()
{
  int i,j;
  for(i=1;i<6;i++)
  {
    for(j=1;j<=i;j++)
    printf("%d",j);
    printf("\n");
  }
}