Course/Module 2/Topic 3 of 3Beginner

Variables, Data Types & I/O - Practice

Put your variables, data types & i/o skills to the test with practical exercises and challenges.

50 min•By Priygop Team•Last updated: Feb 2026

Hands-On Practice

Practice makes perfect! In this section, you'll work through practical exercises that reinforce the concepts covered in this module.

Exercises

Exercise 1: Apply basic variables, data types & i/o concepts
Exercise 2: Solve intermediate-level challenges
Exercise 3: Build a mini-project using variables, data types & i/o
Exercise 4: Debug and fix common issues

Practice: Variables, Data Types & I/O

Practice: Variables, Data Types & I/OC

C Editor

✓ ValidTab = 2 spaces

#include <stdio.h>

int main() {
    char name[50];
    int age;
    
    printf("Enter your name: ");
    scanf("%s", name);
    printf("Enter your age: ");
    scanf("%d", &age);
    
    printf("Hello %s! You are %d years old.\n", name, age);
    printf("In 10 years you will be %d.\n", age + 10);
    return 0;
}

Output

Click ▶ Run to see the result

Edit the code on the left, then click Run

C|15 lines|316 chars|✓ Valid syntax

UTF-8

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