Functions - General Questions

What will be the output of the program?

#include <iostream>
using namespace std;
void show(int x) { cout << "int"; }
void show(char x) { cout << "char"; }
int main() {
    show('a');
    cout << endl;
    return 0;
}

What will be the output of the program?

#include <iostream>
using namespace std;
int main() {
    int total = 0;
    auto add = [&total](int v) { total += v; };
    add(5); add(7);
    cout << total << endl;
    return 0;
}

Which is true about function overloading?

What will be the output of the program?

#include <iostream>
using namespace std;
int fact(int n) { return n < 2 ? 1 : n * fact(n - 1); }
int main() {
    cout << fact(5) << endl;
    return 0;
}

What will be the output of the program?

#include <iostream>
using namespace std;

int main() {
    auto add = [](int a, int b) { return a * b; };
    cout << add(3, 4) << endl;
    return 0;
}