#include <stdio.h>
#include <stdlib.h>
int main()
{
char buffer[32];
int i;
printf("Enter a number: ");
if (scanf("%d", &i) == 1) {
_itoa(i, buffer, 10);
printf("decimal: %s\n", buffer);
_itoa(i, buffer, 16);
printf("hexadecimal: %s\n", buffer);
_itoa(i, buffer, 2);
printf("binary: %s\n", buffer);
}
return 0;
}
/*
run:
Enter a number: 255
decimal: 255
hexadecimal: ff
binary: 11111111
*/