basics · beginner · ~15 min

Letter grade

Map ranges to discrete outputs.

Challenge

Implement char grade_letter(int score) mapping 0-100 to a letter: >=90 'A', >=80 'B', >=70 'C', >=60 'D', else 'F'.

Starter code

char grade_letter(int score) {
    /* TODO */
    return 'F';
}

Solve this exercise in the browser editor — compile and run against the test harness, no setup required.