Calculating the number of digits using log10 function in C++

#include <bits/stdc++.h>

using namespace std;

int main() {
    ios::sync_with_stdio(false);
    cin.tie(0);
    int n;
    cin >> n;
    int number_of_digits = floor(log10(n)) + 1;
    cout << number_of_digits << '\n';
    return 0;
}