What is wrong with the 2nd conditional?

Question

this is the code:

#include <iostream>
#include <conio.h>
using namespace std;

int calcu(){
int entr1;
cin >> entr1;

if (entr1==1){
cout << "1" << endl;
}
if (entr1==2){

int num1,num2;
char signo;

cin >> num1 >> signo >> num2;

if (signo=='+'){
cout << num1 + num2 << endl;}

}

if (entr1!=1&&entr1!=2){
cout << "nope" << endl;
}

return 0;
}

int main() {

calcu();

return 0;
}

when you enter 2 in the program, it says no output, but I cant find anything wrong!

Answer 1

I wrote it and evething went OK. My inputs are
2
3 + 4

And the output is
7

This is quite right.

Check out for syntax.