Exercise 6

6.cpp

// ex 6
#include <stdio.h>

void enterArray(int *a, int &n)
{
	printf("How many elements do you want to put into this array?\nEnter n: ");
	scanf("%d", &n);
	
	for (int i = 0; i < n; i++)
	{
		printf("Enter a[%d]: ", i);
		scanf("%d", &a[i]);
	}
	
}

void insertP (int *a, int &n, int &p, int &q)
{
	
	printf("Nhap vi tri: ");
	scanf("%d", &p);
	
	printf("Nhap gia tri cua a[%d]: ", p);
	scanf("%d", &q);
	
	for (int i = n - 1; i >= p; i--)
		a[i + 1] = a[i];
	
	a[p] = q;
	n++; 
}

void del(int *a, int &n, int p)
{
	for (int i = p; i < n; i++)
		a[i] = a[i + 1];
	
	n--;
}

void trunglap(int *a, int &n)
{
	for (int i = 0; i < n - 1; i++)
		for (int j = i + 1; j < n; j++)
			if (a[i] == a[j])
				del(a, n, j);
}

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

int main()
{
	int n, p, q;
	int a[100];
	
	enterArray(a, n);

	printf("Mang da them: \n");
	showArray(a, n);
	
	printf("\nMang da xoa: \n");
	trunglap(a, n);
	showArray(a, n);
	
	return 0;
}