Conditionals

Conditionals in C++

C++ conditionals work the same as in C: if, else if, else, and the ternary operator.

if / else if / else

int temperature = 25;

if (temperature > 30) {
    cout << "Hot" << endl;
} else if (temperature > 20) {
    cout << "Warm" << endl;
} else if (temperature > 10) {
    cout << "Cool" << endl;
} else {
    cout << "Cold" << endl;
}

Comparing Strings

With C++ string, you can use == directly:

string color = "red";
if (color == "red") {
    cout << "Stop" << endl;
} else if (color == "green") {
    cout << "Go" << endl;
}

Ternary Operator

A compact one-line conditional:

int x = 10;
string result = (x > 0) ? "positive" : "non-positive";
cout << result << endl;

Logical Operators

int age = 25;
bool hasID = true;

if (age >= 18 && hasID) {
    cout << "Welcome" << endl;
}

Your Task

Given a score of 85:

1. Print the score
2. Assign a letter grade (A ≥ 90, B ≥ 80, C ≥ 70, otherwise F)
3. Print the grade