I want to use this program but the if statement is accepting all values.

Question

#include <iostream>

using namespace std;

int cake;
int BIRTHDAY;

int main()
{
    
    cout<<"Happy Birthday (Press 1 to start the happy birthday program)"<<endl;
    cin>>cake;
    if(cake = 1) {
    cout<<"                    *     *    *    * "<<endl;
    cout<<"                   ***   ***  ***  ***"<<endl;
    cout<<"                    *     *    *    * "<<endl;
    cout<<"                    *     *    *    * "<<endl;
    cout<<"                  *********************"<<endl;
    cout<<"                *************************"<<endl;
    cout<<"              ******************************"<<endl;
    cout<<"            **********************************"<<endl;
    cout<<"          **************************************"<<endl;
    cout<<"        ******************************************"<<endl;
    cout<<"      **********************************************"<<endl;    
    cout<<"    **************************************************"<<endl;
    cout<<"  ******************************************************"<<endl;
    cout<<"  ******************************************************"<<endl;
    cout<<"  ( **************************************************  )"<<endl;
    cout<<"  (   **********************************************    )"<<endl;
    cout<<"  (     ******************************************      )"<<endl;
    cout<<"  (       **************************************        )"<<endl;
    cout<<"  (         **********************************          )"<<endl;
    cout<<"  (           ******************************            )"<<endl;
    cout<<"  (             **************************              )"<<endl;
    cout<<"  (_______________**********************________________)"<<endl;
        
    }
    cout<<"Now it is time for your Present!(Type 72)"<<endl;
    cin>>BIRTHDAY;
    
    if(BIRTHDAY = 72)    {
    cout<<"    ******************************************************"<<endl;
        
        
        
        
    }
    return 0;
}

Answer 1

The errors:-

1) if(cake==1) NOT if(cake=1)
2)if(Birthday==72) NOT if(Birthday=27)

you just put assigment not statment inside the if.