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Link: http://codepad.org/8Gnf4JxS    [ raw code | output | fork ]

C, pasted on Oct 29:
#include<stdio.h>
#include<conio.h>
#include<math.h>
#define MAX 100
void NhapMang(float 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++)
		{
			float temp;
			printf("\nNhap a[%d][%d] = ", i, j);
			scanf("%f", &temp);
			a[i][j] = temp;
		}
	}
}

void XuatMang(float a[][MAX], int dong, int cot)
{
	for(int i = 0; i < dong; i++)
	{
		for(int j = 0; j < cot; j++)
		{
			printf("%8.3f", a[i][j]);
		}
		printf("\n\n");
	}
}

float TinhTichCot(float a[][MAX], int y, int dong)
{
	float tich = 1;
	for(int i = 0; i < dong; i++)
	{
		if(a[i][y] > 0)
		{
			tich *= a[i][y];
		}
	}
	return tich;
}
int main()
{
	float a[MAX][MAX];
	int dong, cot;
	NhapMang(a, dong, cot);
	XuatMang(a, dong, cot);

	int y;
	do{
		printf("\nNhap vao cot y can tinh tich: ");
		scanf("%d", &y);

		if(y < 0 || y > cot - 1)
		{
			printf("\nChi so cot y khong hop le. Xin kiem tra lai !");
		}
	}while(y < 0 || y > cot - 1);

	float tich = TinhTichCot(a, y, dong);
	printf("\nTich cot %d = %f", y, tich);
	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 48: error: 'for' loop initial declaration used outside C99 mode
Line 50: error: 'for' loop initial declaration used outside C99 mode
In function 'TinhTichCot':
Line 61: error: 'for' loop initial declaration used outside C99 mode


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