Please help me in C++ first program

Question

Please find the error, this is not work properly.

#include <iostream>
using namespace std;

int main() {
int passengers = 126;
int empty_seats = 0;
//passengers =126;
passengers after 1st bas leaving= passengers - 50;
passengers after 2nd bas leaving= passengers - 50;
passengers after 3rd bas= passengers;
empty_seats= 50 % passengers;
cout << "Empty seats in last bas"<< empty_seats <<endl;

return 0;
}

Answer 1

Read the task carefully. We have to take input for no of passengers first then we have to compute the remaining passengers through
Remaining = maximum number of seats - ( passengers%maximum numberof seats)

Answer 2

No sir brackets are correct please

Answer 3

Places