/* Example insummax.c: Input, sum and max as functions
	Author: Peter Brusilovsky
	*/
	#include <stdio.h>
	#define N 7 /* dimension of the array */
	int readarray(int ar[], int n);
	int sumarray(int ar[], int n);
	int maxelement(int ar[], int n);
	void main() {
	/* declare an array */
	int testarray[N]; /* elements from ar[0] to ar[N-1]; */
	readarray(testarray, N);
	printf("Sum = %d, max = %d ", sumarray(testarray, N), testarray[maxelement(testarray, N)]);
	}
	/* array input */
	int readarray(int ar[], int n_of_elements) {
	int i;
	for (i = 0; i < n_of_elements; ++i) {
	printf("%d> ", i);
	scanf("%d", &ar[i]);
	}
	return 0;
	}
	/* summing array elements */
	int sumarray(int ar[], int n_of_elements) {
	int i, sum = 0;
	for (i = 0; i < n_of_elements; ++i)
	sum += ar[i];
	return sum;
	}
	/* finding index of max array element */
	int maxelement(int ar[], int n) {
	int i, maxind = 0;
	for (i = 1; i < n; ++i)
	if (ar[maxind] < ar[i]) maxind = i;
	return maxind;
	}