💻 Day 82: Input & Output (C Language) – Hinglish

💻 Input & Output (C Language) –

👉 Aaj hum seekhenge:
✅ Input kya hota hai
✅ Output kya hota hai
✅ C language me input/output kaise hota hai
✅ Examples
(Programming ka very important topic) 💯

📌 Input & Output kya hota hai?

👉 Input = User se data lena
👉 Output = Result dikhana

🧠 Example:

User number deta hai → Input
Program sum dikhata hai → Output

📥 Input & Output in C Language

✅ Header File

C me input/output ke liye use hoti hai:

#include <stdio.h>

📤 Output: printf()

👉 Screen par output dikhane ke liye:

printf("Hello World");

📥 Input: scanf()

👉 User se input lene ke liye:

scanf("%d", &a);

🧾 Example Program (Input & Output)

🧑‍💻 Program: Do numbers ka sum

#include <stdio.h>

int main() {
    int a, b, sum;
    
    printf("Enter two numbers: ");
    scanf("%d %d", &a, &b);
    
    sum = a + b;
    
    printf("Sum = %d", sum);
    
    return 0;
}

🧩 Important Format Specifiers

Data Type	Format Specifier
int	%d
float	%f
char	%c

🧪 Practice Questions

✅ Theory:

Input kya hota hai?
Output kya hota hai?
printf() aur scanf() ka use?

✅ Practical:

👉 Program likho:

User se age input lo aur print karo

Example:

int age;
scanf("%d", &age);
printf("Age = %d", age);

📝 Short Notes (Exam ke liye)

👉 printf() = Output function
👉 scanf() = Input function

THE LEARNING