/* Example maxloop.c Running Max
	Goal: The use of if statement inside the loop
	Author: Peter Brusilovsky
	Reads numbers until -1 is entered. Prints the max number entered.
	*/
	#define SENTINEL -1
	#include <stdio.h>
	void main () {
	int max, nextnumber;
	printf("Number: ");
	scanf("%d", &nextnumber); /* read first number */
	max = nextnumber; /* pre-assignment */
	Since we have so far only one number read, it is also the max of all read numbers
	while (nextnumber != SENTINEL) {
	if (max < nextnumber)
	max = nextnumber;
	printf("Number: ");
	scanf("%d", &nextnumber);
	}
	printf ("Max = %d ", max);
	}