Back 2 Back

• Problem Description

  
  Rand has a task to find the sum of first and last digit of number upto given n numbers.Help him in
  writing C code to enter any number and find the sum of first and last digit of the number using for loop.

• Test Case 1

  
  Input (stdin)

  1234
  
  

  Expected Output

  5

• Test Case 2

  
  Input (stdin)

  8231
  
  

  Expected Output

  9

Solution

#include <stdio.h>

int main()

{

  int n,fd,ld,sum=0;

  scanf("%d",&n);

  ld=n%10;

  fd=n;

  while(n>=10)

  {

    n=n/10;

  }

  fd=n;

  sum=fd+ld;

  printf("%d",sum);

 return 0;

}