SWAP FIRST AND LAST DIGIT

• Problem Description

  
  John has a task to swap the first and last digit of the given number. Help him to write a C program to input any number from user and swap the first and last digit of the number

• CODING ARENA

• #include <stdio.h>

  #include <math.h>

  int main()

  {

    int num,first,count,last,a,b,snum;

    scanf("%d",&num);

    count=log10(num);

    first=num/pow(10,count);

    last=num%10;

    a=first*(pow(10,count));

    b=num%a;

    num=b/10;

    snum=last*(pow(10,count))+(num*10+first);

    printf("%d",snum);

  
  

  return 0;

  }

• Test Case 1

  
  Input (stdin)

  12345
  
  

  Expected Output

  52341

• Test Case 2

  
  Input (stdin)

  82341
  
  

  Expected Output

  12348