/C++/First and last digit of a number in c++

First and last digit of a number in c++

// Program to find first and last
// digits of a number
#include <bits/stdc++.h>
using namespace std;
 
// Find the first digit
int firstDigit(int n)
{
    // Find total number of digits - 1
    int digits = (int)log10(n);
 
    // Find first digit
    n = (int)(n / pow(10, digits));
 
    // Return first digit
    return n;
}
 
// Find the last digit
int lastDigit(int n)
{
    // return the last digit
    return (n % 10);
}
 
// Driver program
int main()
{
    int n = 98562;
    cout << firstDigit(n) << " "
         << lastDigit(n) << endl;
    return 0;
}

Source: geeksforgeeks.org

Similar codes

-1 vote93 views1 answer
Dynamic 2d array c++
C++
0 vote121 views1 answer
Fractional Knapsack problem
C++
1 vote151 views1 answer
Height of bst cpp
C++
3 votes130 views1 answer
C++ program to reverse an array
C++
1 vote118 views3 answers
Type casting in cpp
C++
0 vote253 views1 answer
Deliberation meaning
C++
-1 vote125 views2 answers
Casting cpp
C++
0 vote201 views1 answer
Sort n characters in descending order c++
C++
0 vote143 views1 answer
Find the biggest element in the array
C++
0 vote125 views3 answers
C++ tuple
C++