Question 1

[zohikoim@vm-zohikoim ~]$ cat bases.c
#include <stdio.h>
#include <stdlib.h>

int main(void) {
	printf("%d\n", 72);
	printf("%d\n", 0110);
	printf("%d\n", 0x48);
	return EXIT_SUCCESS;
}[zohikoim@vm-zohikoim ~]$ gcc -ansi -pedantic bases.c
[zohikoim@vm-zohikoim ~]$ ./a.out
72
72
72