#include <stdio.h>
int main(){
//20. Write a program to find out sum of first and last digit of a given number.
int n,lastdig,firstdig,sum=0;
printf("\tSum Of First And Last Digit Of A Given Number");
printf("\n=============================================================");
printf("\n\nEnter The Value Of N : ");
scanf("%d",&n);
lastdig = n%10;
while(n>=10){
n=n/10;
}
firstdig=n;
sum = firstdig + lastdig;
printf("\n______________________________________________________________");
printf("\n\nSum Of Last & First Digit Of Given Number Is : %d",sum);
printf("\n______________________________________________________________\n\n");
return 0;
}
This C program: