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Thứ Tư, 5 tháng 3, 2014

/* Bai tap on tap 1:
Viet cac ham:
1. Nhap vao mot ma tran vuong so nguyen co kich thuoc n (4<n<7)
2. Dem so phan tu la so chia het cho 3 va 5
3. Tinh tong theo dong, in ket qua
4. Sap xep tang dan theo dong.
*/
#include<stdio.h>
#include<conio.h>

// mang
#define Max 7
#define Min 4

int
m[Max][Max],n;

// Nhap
void Nhap(){
do
{
printf("\n Nhap n:"); scanf("%d",&n);
if
(n<Min||n>Max)
printf("\n Nhap lai n");
}
while (n<Min||n>Max);
for
(int i=0;i<n;i++)
for
(int j=0;j<n;j++)
{

printf("\n m[%d][%d]=",i,j);
scanf("%d",&m[i][j]);
}

}


// In
void InMT(){
printf("\n In ma tran: \n");
for
(int i=0;i<n;i++)
{

for
(int j=0;j<n;j++)
printf("%d\t",m[i][j]);
printf("\n");
}

}

// dem so chia het cho 3 va 5

int
Dem(){
int
dem=0;
for
(int i=0;i<n;i++)
for
(int j=0;j<n;j++)
if
(m[i][j]%3==0&&m[i][j]%5==0) dem++;
return
dem;
}

// Tong dong
void TongDong(){
for
(int j=0;j<n;j++)
{

int
tong=0;
for
(int i=0;i<n;i++)

tong=tong+m[j][i];
printf("\n Tong dong %d: %d ",j,tong);

}
}

// Sap xep dong tang dan
void SapXepDong(){
for
(int j=0;j<n;j++)
{

for
(int i=0;i<n-1;i++)
for
(int k=i+1;k<n;k++)
if
(m[j][i]>m[j][k]) {int t=m[j][i];m[j][i]=m[j][k];m[j][k]=t; }
}
}


// main
int main(){
Nhap();
InMT();
printf("\n Dem so chia het cho 3 va 5: %d",Dem());
TongDong();
SapXepDong();
InMT();
getch();
return
0;
}
05 Mar 2014

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