#include <stdio.h>
#include <math.h>
#include <stdlib.h>

// ---------------------------------
//khai bao ham so
const int MAXSIZE = 200;

//--------------------------------------
//khai bao nguyen ham mau
void hienThiMenu();
void nhapM1C(int a[], int& n);
void xuatM1C(int a[], int n);
void sinhM1CRandom(int a[], int& n);
int xuatSoChan(int a[], int n);
//int tongMang(int a[], int n);
//int tongChan(int a[], int n);

//-------------------------------------
int main()
{
	int a[MAXSIZE];
	int n = 0;
	int chon = -1;
	nhapM1C(a, n);
	xuatM1C(a, n);
	while (chon != 0)
	{
		hienThiMenu();
		printf("Moi ban chon:");
		scanf_s("%d", &chon);
		switch (chon)
		{
		case 1:
		{
			xuatM1C(a, n);
			break;
		}
		case 2:
		{
			printf("Gia tri trong mang co %d so chan", xuatSoChan(a, n));
			break;
		}
		case 0:
		{
			printf("Chuong trinh dang thoat!");
			break;
		}
		default:
		{
			printf("Ban da nhap sai!Vui long nhap lai:");
			break;
		}
		}
	}
	return 0;
}
//---------------------------------------
//ham con
void hienThiMenu()
{
	printf("\n-------------Menu Tuan 06----------------\n");
	printf("1: Nhap xuat M1C\n");
	printf("2: Nhap xuat M1C chua cac so nguyen va gia tri chan ,tong ,tong chan \n");
	printf("0: Thoat chuong trinh\n");
}

void nhapM1C(int a[], int& n)
{
	printf("Nhap so phan tu: ");
	scanf_s("%d", &n);
	for (int i = 0;i < n;i++)
	{
		printf("Nhap phan tu thu %d:", i);
		scanf_s("%d", &a[i]);
	}
}

void xuatM1C(int a[], int n)
{
	for (int i = 0;i < n;i++)
	{
		printf("%5d", a[i]);
	}
}

int xuatSoChan(int a[], int n)
{
	int dem = 0;
	for (int i = 0;i < n;i++)
	{
		if (a[i] % 2 == 0)
			dem++;
	}
	return dem;
}

void sinhM1CRandom(int a[], int& n);
{
	n = 20;
	for (int i = 0;i < n;i++)
	{
		//b[i] = rand() % 100; //0-->99
		b[i] = rand() & 100 - 50; //co so am va duong
	}
}