//LECTURE : OPERATORS in C++
//1 = true / 0 = false

#include <stdio.h>

int main(){
      bool t = true;
      bool f = false;
      printf("!true : %d\n" , !t);
      printf("true && false : %d\n", t && false);
      printf("true && !false : %d\n", t && !f);
      printf("true || false : %d\n", t || f);
      printf("false || false : %d\n", f || f);
}