Basic of C - Data Types, Constant Variables, Comments, Array, Print function

basics.c

#include <stdio.h>
#include <stdbool.h>

/*
 * Run:
 * gcc -Wall -pedantic -Werror -Wextra -std=c99 c-programming/input.c -o c-programming/output
 * gcc c-programming/input.c -o c-programming/output
 * c-programming/output
 */

int main() {
  /* Basic Data Types */
  
  const int numb = 89; // Constant integer variable
  const char *str = "Bello Osagie"; // Constant string (array of characters)
  const bool isTrue = 5 > 3; // Constant boolean variable
  char text[] = "This is a text"; // Character array (string)
  text[8] = '1'; // Modifying a character in the array
  const char greetings[] = { 'H', 'e', 'l', 'l', 'o', ' ', 'W', 'o', 'r', 'l', 'd', '\0' }; // Character array (string) initialized with individual characters
  const int myNumbers[] = { 4, 8, 1, 9, 7 }; // Array of integers
  const char *myString[] = { "money", "people", "love" }; // Array of strings
  const int indexNumb = myNumbers[2]; // Accessing an element from an array
  const char *indexStr = myString[1]; // Accessing an element from an array
  const int myNumbers2D[2][3] = { {3, 5, 8 }, {3, 0, 1} }; // 2D array of integers
  const int indexMyNumber2D = myNumbers2D[1][0]; // Accessing an element from a 2D array
  int replaceIndexMyNumber2D = myNumbers2D[1][0]; // Modifying an element from a 2D array
  replaceIndexMyNumber2D = 10; // Assigning a new value to the modified element

  printf("%d\n", numb); // Print the value of numb
  printf("%s\n", text); // Print the value of text
  printf("%s\n", str); // Print the value of str
  printf("%s\n", text); // Print the value of text
  printf("%d\n", isTrue); // Print the value of isTrue
  printf("%d\n", indexNumb); // Print the value of indexNumb
  printf("%s\n", greetings); // Print the value of greetings
  printf("%s\n", indexStr); // Print the value of indexStr
  printf("%d\n", indexMyNumber2D); // Print the value of indexMyNumber2D
  printf("%d\n", replaceIndexMyNumber2D); // Print the value of replaceIndexMyNumber2D

  return 0;
}