Intro

// stdio.h 
    // it contains functions 
    // saik(10) -- its a function
    // .h files are called as Header Files
    // They only contains predefined functions


// Processing oF running a C program
// main.c
// preprocessor
//--> Compiler ---> main.o 
// stdio.o
// Linker --> (stdio.o and main.o)

// return_type function_name(datatype parameter1, datatype param2, ....){

int -
float - 

int add(int num1, int num2){
    int num3 = num1 + num2;
    return num3;
}

#include <stdio.h>
#define number 256

int main() {
    printf("Hello World!\n");
    int num1 = 10;// num1  -integer datatype
    int tot = add(10 ,20 );
    return 0;
}