Introduction to C

1_hello_world.c

#include <stdio.h>

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

while.c

#include <stdio.h>

int main(void){
    int counter = 0;
    int t = 1;
    while (t){
        counter++;
        printf("counter: %d\n", counter);
            if (counter == 5){
                t  = 0;
            }
    }
}