C: Conditional Statements

Control statements that allow different code blocks to execute based on specific conditions.

1. if / else

int score = 85;

if (score >= 90) {
    printf("Grade A\n");
} else if (score >= 80) {
    printf("Grade B\n");
} else {
    printf("Other\n");
}

2. switch / case

Used when selecting a block of code to execute among many alternatives based on a specific value.

int day = 2;

switch (day) {
    case 1:
        printf("Monday\n");
        break;
    case 2:
        printf("Tuesday\n");
        break;
    default:
        printf("Other Day\n");
}

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info

Be careful: if you omit the break statement in a switch block, the execution will "fall through" to the subsequent case.