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Create a Pointer Variable

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Create a Pointer Variable

#include <stdio.h>

int main() {
  int myAge = 43;  // An int variable
  int* ptr = &myAge;  // A pointer variable, with the name ptr, that stores the address of myAge

  // Output the value of myAge (43)
  printf("%d\n", myAge);

  // Output the memory address of myAge (0x7ffe5367e044)
  printf("%p\n", &myAge);

  // Output the memory address of myAge with the pointer (0x7ffe5367e044)
  printf("%p\n", ptr);

  return 0;
}

Function Calling

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Function Calling

#include <stdio.h>

// Create a function
void myFunction() {
  printf("I just got executed!\n");
}

int main() {
  myFunction(); // call the function
  myFunction(); // call the function
  myFunction(); // call the function
  return 0;
}

Print Hello World String

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Print Hello World String

#include <stdio.h>

int main() {
  printf("Hello World!");
  return 0;
}

Sum of Two Numbers Using Addition Operator

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Sum of Two Numbers Using Addition Operator

#include <stdio.h>

int main() {
  int myNum = 100 + 50;
  printf("%d", myNum);
  return 0;
}

Sum of variable and Numbers Using Addition Operator

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Sum of variable and Numbers Using Addition Operator

#include <stdio.h>

int main() {
  int sum1 = 100 + 50;        // 150 (100 + 50)
  int sum2 = sum1 + 250;      // 400 (150 + 250)
  int sum3 = sum2 + sum2;     // 800 (400 + 400)
  printf("%d\n", sum1);
  printf("%d\n", sum2);
  printf("%d\n", sum3);
  return 0;
}

Writing a Single-Line Comment

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Writing a Single-Line Comment

#include <stdio.h>

int main() {
  printf("Hello World!"); // This is a comment
  return 0;
}

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