🔁 if-else in C

🔁 if-else Condition in C

🧪 Short Explanation:
In C, if-else is used to choose between two blocks of code. If the condition is true, the if block runs; otherwise, the else block executes.

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✅ Syntax

if (condition) {
    // code if true
} else {
    // code if false
}
  

📋 Example

#include <stdio.h>

int main() {
    int number = 10;

    if (number % 2 == 0) {
        printf("Even number\n");
    } else {
        printf("Odd number\n");
    }

    return 0;
}
  

🧠 Output: Even number

💡 Use Cases

• Checking even or odd numbers
• Determining eligibility (e.g., age ≥ 18)
• Menu selections or user inputs

⚠️ Common Mistakes

• Using = instead of == for comparison
• Forgetting the curly braces { } for multiple lines
• Leaving out the else block when needed

📌 Summary

The if-else structure is the foundation of decision-making in C programming. It helps direct program flow based on logical conditions.

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