Ticket Pricing System - Problem

You are building a movie ticket pricing system that calculates the correct ticket price based on age and day of the week.

Pricing Rules:

Child (age < 12): $5
Adult (age 12-59): $10
Senior (age 60+): $7

Weekend Surcharge: Add $3 to the base price if isWeekend is true.

Given a person's age and whether it's a weekend, return the total ticket price.

Input & Output

Example 1 — Child Weekend

$ Input: age = 8, isWeekend = true

› Output: 8

💡 Note: Age 8 is a child (< 12), so base price is $5. Weekend adds $3 surcharge. Total: $5 + $3 = $8

Example 2 — Adult Weekday

$ Input: age = 25, isWeekend = false

› Output: 10

💡 Note: Age 25 is adult (12-59), so base price is $10. No weekend surcharge. Total: $10

Example 3 — Senior Weekend

$ Input: age = 65, isWeekend = true

› Output: 10

💡 Note: Age 65 is senior (60+), so base price is $7. Weekend adds $3 surcharge. Total: $7 + $3 = $10

Constraints

0 ≤ age ≤ 150
isWeekend is either true or false

Visualization

Tap to expand

Asked in

a Amazon 25 M Microsoft 18 G Google 15

The key insight is using conditional logic to map age ranges to base prices, then adding the weekend surcharge when applicable. The optimal approach uses a single if-else chain with inline weekend calculation. Time: O(1), Space: O(1)

Common Approaches

✓ Nested If Statements

⏱️ Time: O(1) Space: O(1)

Use multiple if-else statements to first determine the base price by age category, then check weekend status separately to add the surcharge.

Single If-Else Chain

⏱️ Time: O(1) Space: O(1)

Use a single if-else chain that determines the base price and applies weekend surcharge in one pass, making the logic more concise and efficient.

Nested If Statements — Algorithm Steps

Check age ranges to determine base price
Check weekend status to add surcharge
Return total price

Visualization

Tap to expand

Step-by-Step Walkthrough

Check Age Category

Determine if child, adult, or senior

Set Base Price

Assign $5, $10, or $7 based on age

Check Weekend

Add $3 surcharge if weekend

Return Total

Output final calculated price

Code -

solution.c — C

#include <stdio.h>
#include <string.h>
#include <stdbool.h>

int solution(int age, bool isWeekend) {
    // Determine base price by age
    int basePrice;
    if (age < 12) {
        basePrice = 5;  // Child
    } else if (age <= 59) {
        basePrice = 10; // Adult
    } else {
        basePrice = 7;  // Senior
    }
    
    // Add weekend surcharge if applicable
    int totalPrice = basePrice;
    if (isWeekend) {
        totalPrice += 3;
    }
    
    return totalPrice;
}

int main() {
    int age;
    char weekendStr[10];
    
    scanf("%d", &age);
    scanf("%s", weekendStr);
    
    bool isWeekend = (strcmp(weekendStr, "true") == 0);
    
    int result = solution(age, isWeekend);
    printf("%d\n", result);
    
    return 0;
}

Time & Space Complexity

Time Complexity

⏱️

O(1)

Fixed number of condition checks regardless of input

✓ Linear Growth

Space Complexity

O(1)

Only uses a few variables to store price calculations

✓ Linear Space

23.5K Views

Medium Frequency

~8 min Avg. Time

892 Likes

Ln 1, Col 1

Smart Actions

💡 Explanation

AI Ready

💡 Suggestion Tab to accept Esc to dismiss

// Output will appear here after running code

Code Editor Closed

Click the red button to reopen

Ticket Pricing System - Problem

Input & Output

Constraints

Visualization

Related Problems

Common Approaches

Nested If Statements — Algorithm Steps

Visualization

Code -

Time & Space Complexity

Select Compiler