#define _CRT_SECURE_NO_WARNINGS
#include<stdio.h>
#include <stdlib.h>
#include <time.h>
#define LEN 15
void randArr(int);
void printArr(int arr[]);
int countPeaks(int arr[]);
void peaksLocation(int);
int main()
{
	srand(time(NULL));
	int arr[LEN];
    randArr(arr);
	printArr(arr);
	printf("\nthe amount of the peaks is : %d",countPeaks(arr));
	peaksLocation(arr);
}



 void randArr(int arr[])
{
	int i;
	for (i = 0;i < LEN;i++)
		arr[i] = rand() % 41 + 10;

}
void printArr(int arr[])
{
	int i ,num;
	printf("the numbers of the array are :");
	for (i = 0;i < LEN;i++)
	{
		num = arr[i];
		printf("%d, ", num);

	}
}

  int countPeaks(int arr[])
{
	  int peaks=0, i;
	  for (i = 1;i < LEN ;i++)
	  {

		  if (arr[i] > arr[i - 1] && arr[i] > arr[i + 1])


          peaks++;

	  }
	  return peaks;
}
void peaksLocation(int arr[])
{
	int i;
	printf("\nthe number of the index peaks is :");
	for (i = 1;i < LEN - 1;i++)
		if (arr[i] > arr[i - 1] && arr[i] > arr[i + 1])



			printf("%d ", i+1);
}