Introduction:
program to swap first and last digit of a number in c++
I have used CodeBlocks compiler for debugging purpose. But you can use any C++ programming language compiler as per your availability.
Write Program To swap First and Last Digit of a Number C++
#include <iostream>
#include <math.h>
using namespace std;
int main()
{
int num, last, first, temp, swap, count = 0;
//Reading a number from user
cout<<"Enter any number:";
cin>>num;
temp = num;
last = temp % 10;
count = (int)log10(temp);
while(temp>=10)
{
temp /= 10;
}
first = temp;
swap = (last * pow(10, count) + first) + (num - (first * pow(10, count) + last));
cout<<"Last Digit: "<<last<<endl;
cout<<"First Digit: "<<first<<endl;
cout<<num<<" is swapped to "<<swap;
return 0;
}
Result
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