//below shows how to output
cout << "hello\n";
/* 
This is written by Ernest
and he is super hansome
*/

/*
if ( conditions )
	statement;
*/
if(a >= 60)
	cout << "Passed" << "\n";
	

if (grade >= 60)
	cout <<"Passed\n";
else
	cout <<"Failed\n";

if(a >= 90)
	cout << "A\n";
else 
	if(a >= 80)
    	cout << "B\n";
    else 
        if(a >= 70)
            cout << "C\n";
        else 
            cout <"F\n";

if(a >= 90)
	cout << "A\n";
else if(a >= 80)
   	cout << "B\n";
else if(a >= 70)
    cout << "C\n";
else 
    cout <"F\n";

if(x > 5)
	if(y > 5)
    	cout << "x and y are > 5\n";
else 
	cout << "x is <= 5";

if(x > 5)
{
	if(y > 5)
    	cout << "x and y are > 5\n";
}
else 
	cout << "x is <= 5";

#include <iostream>
using namespace std;
int main() {
    int choice;
    cout << "Pick chest 1 or 2: ";
    cin  >> choice;

    if (choice == 1) {
        cout << "You found a magic ring!\n";
    } else {
        cout << "A monster jumps out!\n";
    }
    return 0;
}

if(x > 3 && x < 7) //and
	cout << "3 < x < 7\n";

if(3 < x && x < 7) //and 錯誤版
	cout << "3 < x < 7\n";

bool a = true;
bool b = false;
int x = 3;
bool c = (x > 3);

int a;
cin >> a;
if(a)
	cout << a <<"\n";

#include <iostream>
using namespace std;
int main() {
    bool raining    = false;
    bool sportClass = true;

    if (!raining && sportClass) {
        cout << "Go to PE class\n";
    } else {
        cout << "No PE class\n";
    }
    return 0;
}

/*Syntax
conditions ? true statement : false statement
*/
int a = 65;
string result = (a >= 60) ? "Passed" : "Fail";
cout << result << endl;
cout << (a >= 60) ? "Passed\n" : "Fail\n";