Print Characters

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#include<stdio.h>

int main() {
   char str[] = "Hello, world!";
   int i;

   for(i = 0; str[i] != '\0'; i++) {
      printf("%c\n", str[i]);
   }

   return 0;
}

Explanation: 1. The stdio.h header file is included to provide access to the printf() function. 2. The main() function is defined as the starting point of the program. 3. A character array str is declared and initialized with the string "Hello, world!". 4. An integer variable i is declared to be used as an index for accessing each character in the string. 5. The for loop is used to iterate through each character in the string. The loop continues until the null character ('\0') is encountered, indicating the end of the string. 6. Inside the loop, the printf() function is used to print each character in the string. 7. The %c format specifier is used to specify that a single character should be printed. 8. The str[i] expression is used to access each character in the string using the current index i. 9. After printing each character, a newline character (\n) is printed to separate each character on a new line. 10. Finally, the main() function returns 0 to indicate successful program execution.

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