ex10-03.cpp

数据结构常用算法合集

//EX10-03.cpp
#include <iostream.h>	//cout,cin
#include <conio.h>		// getch()
#include <stdlib.h>		//randomize
const int N=20;
void list_data(int[],int);
void main()
{ int a[20],sum=0,i;
  cout<<"no randomize and srand:\n";
  for (i=0;i<N;i++)
  { a[i]=random(100);
    sum += a[i];
  }
  list_data(a,sum);
  cout<<"no randomize:\n";
  srand(100);
  sum=0;
  for (i=0;i<N;i++)
  { a[i]=random(100);
    sum += a[i];
  }
  list_data(a,sum);
  cout<<"using randomize:\n";
  randomize();
  for (i=0;i<N;i++)
  { a[i]=random(100);
    sum += a[i];
  }
  list_data(a,sum);
  getch();
}
void list_data(int a[],int sum)
{ int i;
  for (i=0;i<N;i++)
  cout<<a[i]<<' ';
  cout << "sum="<<sum
       <<" ave="<<sum/20.0<<endl;
}