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Link: http://codepad.org/ESzBOpzp    [ raw code | output | fork ]

C, pasted on Nov 18:
#include<stdio.h>
#include<conio.h>
#include<math.h>
#define MAX 100
void NhapMang(int a[][MAX], int &dong, int &cot)
{
	//Nhập số dòng
	do
	{
		printf("\nNhap vao so dong: ");
		// Cách tà đạo: scanf("dong =%d",&dong);  // Lúc nhập phải viết thêm  chữ ( dong =  ) ở khung console
		scanf("%d",&dong);

		if(dong < 1 || dong > MAX)
		{
			printf("\nSo dong khong hop le. Xin kiem tra lai!");
		}

	}while(dong < 1 || dong > MAX);

	//Nhập số cột
	do
	{
		printf("\nNhap vao so cot: ");
		scanf("%d",&cot);

		if(cot < 1 || cot > MAX)
		{
			printf("\nSo cot khong hop le. Xin kiem tra lai!");

		}

	}while(cot < 1 || cot > MAX);
	for(int i = 0; i < dong; i++)
	{
		for(int j = 0; j < cot; j++)
		{
			printf("\nNhap a[%d][%d] = ", i, j);
			scanf("%d", &a[i][j]);
		}
	}
}

void XuatMang(int a[][MAX], int dong, int cot)
{
	for(int i = 0; i < dong; i++)
	{
		for(int j = 0; j < cot; j++)
		{
			printf("%4d", a[i][j]);
		}
		printf("\n\n");
	}
}

void HoanVi(int &a, int &b)
{
	int temp = a;
	a = b;
	b = temp;
}

void HoanVi2Dong(int a[][MAX], int dong, int cot, int dong1, int dong2)
{
	if((dong1 >= 0 && dong1 < dong) && (dong2 >= 0 && dong2 < dong))
	{
		for(int j = 0; j < cot; j++)
		{
			HoanVi(a[dong1][j], a[dong2][j]);
		}
	}
}
int main()
{
	int a[MAX][MAX], dong, cot;
	int dong1, dong2;
	NhapMang(a, dong, cot);
	XuatMang(a, dong, cot);

	do
	{
		printf("\nNhap dong 1: ");
		scanf("%d", &dong1);

		if(dong1 < 0 || dong1 >= dong)
		{
			printf("\nDong khong hop le. Xin Nhap lai!");
		}
	}while(dong1 < 0 || dong1 >= dong);

	do
	{
		printf("\nNhap dong 2: ");
		scanf("%d", &dong2);

		if(dong2 < 0 || dong2 >= dong)
		{
			printf("\nDong khong hop le. Xin Nhap lai!");
		}
	}while(dong2 < 0 || dong2 >= dong);

	HoanVi2Dong(a, dong, cot, dong1, dong2);

	printf("\nMa tran sau khi hoan vi dong %d va dong %d \n", dong1, dong2);
	XuatMang(a, dong, cot);

	getch();
	return 0;
}


Output:
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Line 17: error: conio.h: No such file or directory
Line 5: error: expected ';', ',' or ')' before '&' token
In function 'XuatMang':
Line 46: error: 'for' loop initial declaration used outside C99 mode
Line 48: error: 'for' loop initial declaration used outside C99 mode
t.c: At top level:
Line 56: error: expected ';', ',' or ')' before '&' token
In function 'HoanVi2Dong':
Line 67: error: 'for' loop initial declaration used outside C99 mode


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