#include <iostream>

typedef int (*func)(int);

int foo(int x) {
    return x + 1;
}

int bar(int x) {
    return x - 1;
}

func funcs[2] = {&foo, &bar};

int main() {
    for (int i = 0; i < 2; i++) {
        std::cout << funcs[i](3) << " ";
    }
}