[codes=c]#include "conio.h"
#include "stdio.h"

void nhap_ma_tran(int a[][10], int &d, int &c)
{
  
  for (int i = 0; i<d; i++)
    for (int j = 0; j<c; j++)
    {
      printf("Nhap cac phan tu: a[%d][%d]",i, j);
      scanf("%d", &a[i][j]);
    }
}

void xuat_ma_tran(int a[][10], int &d, int &c)
{
  for (int i = 0; i<d; i++)
  {
    for (int j = 0; j<c; j++)
      printf("%4d",a[i][j]);
      printf("\n");  
  }
    
}

long tong_ma_tran(int a[][10], int &d, int &c)
{
  long s = 0;
  for (int i = 0; i<d; i++)
    for (int j = 0; j<c; j++)
      s = s + a[i][j];
  return s;
}

long tich_ma_tran(int a[][10], int &d, int &c)
{
  long t = 1;
  for (int i = 0; i<d; i++)
    for (int j = 0; j<c; j++)
      t = t * a[i][j];
  return t;
}

float trungbinhcong_ma_tran(int a[][10], int &d, int &c)
{
  float trung_binh_cong, tong = 0;
  int dem = 0;
  for (int i = 0; i<d; i++)
    for (int j = 0; j<c; j++)
    {
      if(a[i][j]>0)
      {
        tong = tong + a[i][j];
        dem++;
      }
    }
    if (dem>0)
    {
      trung_binh_cong = tong/dem;
    }
    else
      trung_binh_cong = 0;
  return trung_binh_cong;
}

void phan_tu_dong_chan(int a[][10], int d, int c)
{
  for (int i = 0; i<d; i+=2)
  {
    for (int j = 0; j<c; j++)
      if (i%2==0)
        printf("%4d",a[i][j]);        
        printf("\n");  
  }
    
}

void phan_tu_dong_le(int a[][10], int d, int c)
{
  for (int i = 0; i<d; i+=2)
  {
    for (int j = 0; j<c; j++)
      if (j%2==0)
        printf("%4d",a[i][j]);        
        printf("\n");  
  }
    
}

void main()
{
  int a[10][10],d, c;
  long tong = 0;
  long tich = 1;
  float tbc;
  printf("NHap vao so dong: ");
  scanf("%d", &d);
  printf("NHap vao so cot: ");
  scanf("%d", &c);
  nhap_ma_tran(a, d, c);
  printf("\n");
  printf("Ma tran vua nhap co dang: ");
  printf("\n");
  xuat_ma_tran(a, d, c);
    tong = tong_ma_tran(a, d, c);
    tich = tich_ma_tran(a, d, c);
    tbc = trungbinhcong_ma_tran(a, d, c);
  printf("Tong la: %ld", tong);
    printf("\n");
  printf("Tich la: %ld", tich);
    printf("\n");
  printf("Trung binh cong la: %f", tbc);
    printf("\n");  
  printf("Phan tu trong ma tran nam tren dong chan:");
    printf("\n");
  phan_tu_dong_chan(a, d, c);
  printf("Phan tu trong ma tran nam tren dong le:");
    printf("\n");
  phan_tu_dong_le(a, d, c);
  getch();
}
[/codes]

Last modified on March 31st, 2021 at 1:26 am

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