Example: Regional Taxation with Switch Statement in C

// Regional Taxation with Switch Statement
#include <stdio.h>

// Function to get tax rate based on region code
float getTaxRateByCode(char regionCode) {
    // Step 1: Use a switch statement to check the region code
    switch (regionCode) {
        case 'N': // North region code
            return 0.10; // 10% tax rate
        case 'S': // South region code
            return 0.075; // 7.5% tax rate
        case 'E': // East region code
            return 0.12; // 12% tax rate
        case 'W': // West region code
            return 0.08; // 8% tax rate
        default:
            return 0.05; // Default tax rate for unknown codes
    }
}

int main() {
    char regionInputCode;
    float itemPrice;
    float taxRate;
    float finalPrice;

    // Step 2: Prompt user for region code and item price
    printf("Enter the region code (N for North, S for South, E for East, W for West): ");
    scanf(" %c", &regionInputCode); // Note the space before %c to consume newline

    printf("Enter the item price: $");
    scanf("%f", &itemPrice);

    // Step 3: Get the tax rate for the specified region code
    taxRate = getTaxRateByCode(regionInputCode);

    // Step 4: Calculate final price
    finalPrice = itemPrice * (1 + taxRate);

    // Step 5: Display results
    printf("\nRegion Code: %c\n", regionInputCode);
    printf("Item Price: $%.2f\n", itemPrice);
    printf("Tax Rate: %.2f%%\n", taxRate * 100);
    printf("Final Price (including tax): $%.2f\n", finalPrice);

    return 0;
}