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Link: http://codepad.org/BdzeZ954    [ raw code | output | fork ]

C, pasted on Nov 24:
#include<stdio.h>
#include<conio.h>
#include<math.h>
#define MAX 100
void NhapMaTran(int a[][MAX], int &n)
{
	do
	{
		printf("\nNhap n: ");
		scanf("%d", &n);
		if(n < 1 || n > MAX)
		{
			printf("\nSo phan tu khong hop le. Xin kiem tra lai !");
		}
	}while(n < 1 || n > MAX);

	for(int i = 0; i < n; i++)
	{
		for(int j = 0; j < n; j++)
		{
			printf("\nNhap vao a[%d][%d] = ", i, j);
			scanf("%d", &a[i][j]);
		}
	}
}

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

int KiemTraNguyenTo(int n)
{
	if(n < 2)
	{
		return 0;
	}
	else if(n > 2)
	{
		if(n % 2 == 0)
		{
			return 0;
		}
		for(int i = 3; i <= sqrt((float)n); i += 2)
		{
			if(n % i == 0)
			{
				return 0;
			}
		}
	}
	return 1;
}

int DemSoLuongSoNguyenTo(int a[][MAX], int n)
{
	int dem = 0;
	for(int i = 0; i < n; i++)
	{
		for(int j = 0; j < n; j++)
		{
			if(KiemTraNguyenTo(a[i][j]) == 1)
			{
				dem++;
			}
		}
	}
	return dem;
}
int main()
{
	int a[MAX][MAX], n;
	NhapMaTran(a,n);
	XuatMaTran(a,n);
	int dem = DemSoLuongSoNguyenTo(a, n);
	printf("\nSo luong so nguyen to trong ma tran vuong = %d", dem);

	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 'XuatMaTran':
Line 29: error: 'for' loop initial declaration used outside C99 mode
Line 31: error: 'for' loop initial declaration used outside C99 mode
In function 'KiemTraNguyenTo':
Line 51: error: 'for' loop initial declaration used outside C99 mode
In function 'DemSoLuongSoNguyenTo':
Line 65: error: 'for' loop initial declaration used outside C99 mode
Line 67: error: 'for' loop initial declaration used outside C99 mode


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