fzu_oop_east 第一次作业

第一题
题目：

代码：

#include<iostream>
#include<cstdio>
using namespace std;

class Date
{
    public:
	      int year;
		  int month;
		  int day;
		  int calculation(int judge,int month,int day);
};

int Date::calculation(int judge,int month,int day)
{
	int result=0;
	result=(month-1)*31+day;
	if(month>2)
	{
		if(judge==1)                     //如果是闰年 
		{
			result=result-(month/2)-2;
		}
		else
		{
			result=result-(month/2)-1;
		}
	}
	return result;
}


int main()
{
	Date date1;
	int year1,month1,day1,decide,number;
	while(scanf("%d %d %d",&year1,&month1,&day1)!=EOF)
	{
		decide=0;
		if(year1==0 && month1==0 && day1==0)
		{
			break;
		}
		else
		{
			if(year1%4==0&&year1%100!=0||year1%400==0) 
		    {
		     	decide=1;
		    }
		    number=date1.calculation(decide,month1,day1);
		    cout<<number<<endl;
		}	
	}
	return 0;
}

第二题
题目：

代码

#include<iostream>
#include<cstring>
#include <string>
#include<cstdio>
#include<algorithm>
using namespace std;

class Students
{
	private:
		
	    int room;
	    string name;
	    int height;
	    int weight;
	    
	public:
		void begin()
		{
			height = 0;
		}
		void getin(string a,int b,int c,int d)
		{
			if(b>height)
			{
				room=d;
				name=a;
				height=b;
				weight=c;
			}
		}
		void print()
		{
			printf("%06d ",room);
			cout<<name<<" "<<height<<" "<<weight<<endl;
		}
		int ad()
		{
			if(height!=0)
			return 0;
			else
			return 1;
		}

}student[1000000];

int a[1000000];

int main()
{
	int n,i,j=0;
	cin>>n;
	for(i=0;i<n;i++)
	{
		int room,height,weight;
		string name;
		cin>>room>>name>>height>>weight;
		a[j]=room;
		j=j+student[room].ad();
		student[room].getin(name,height,weight,room);
	}
	sort(a,a+j);
    for(i=0;i<j;i++)
    {
    	student[a[i]].print();
	}
	return 0;
}

第三题
题目：

代码

#include<iostream>
#include<cstdio>
#include<cmath>
#include<algorithm>
using namespace std;

int num[100000][1000];

int main()
{
	int begin,end,i,n,m,x,y,how=0,how1=0,result=0;
	cin>>begin>>end;
	for(n=begin;n<=end;n++)
	{
		how=0;
		m=sqrt(n);
		for(i=1;i<=m;i++)
		{
			x=n%i;
			if(x==0)
			{
				y=n/i;
				num[n][how]=i;
				how++;
				if(i!=y)
				{
					num[n][how]=y;
                    how++;
				}
			}
		}
		if(how>how1)
		{
			how1=how;
			result=n;
		}
	}
	sort(num[result],num[result]+how1);
	cout<<"["<<begin<<","<<end<<"] ";
	cout<<result<<" "<<how1<<endl;
	for(i=0;i<how1-1;i++)
	{
		cout<<num[result][i]<<" ";
	}
	cout<<num[result][i];
    return 0;
}

第四题
题目：

代码

#include<iostream>
#include<cstdio>
#include<stdlib.h>
using namespace std;

struct Node
{ 
    int data; 
	struct Node *next; 
};


int main()
{
	Node *change(Node *head);
    int repeat;
	cin>>repeat;
	for(int i=0;i<repeat;i++)
	{	
	    int n;
	    Node *head,*p1,*p2;
     	head=NULL;
     	
		p2=(Node*)malloc(sizeof(Node));
		
		while(scanf("%d",&n)!=EOF)
		{
			p1=(Node*)malloc(sizeof(Node));
			if(n==-1)
			{
				p2->next=NULL;	
				break;
			}
			else
			{
			    p1->data=n;
			    if(head == NULL)     /*如果是开头的话*/ 
			    {
				    head=p1;
			    }
			    else
			    {
			    	p2->next=p1;
				}
				p2=p1;
			}
		}
		/*到这里没问题*/
		head=change(head);              /*删去奇数的节点*/
		
		if(head != NULL)               /*输出*/
		{
			while(head->next != NULL)
			{
				cout<<head->data<<" ";
				head=head->next;
			}
			cout<<head->data<<endl;
		}
	}
	return 0;
} 


Node *change(Node *head)
{
	Node *p1,*p2;
	while(head!=NULL && head->data%2 != 0)
	{
		head=head->next;
	}
	p1=p2=head;
	
	if(head==NULL)
	return head;
	
	p1=p1->next;
	while(p1 != NULL)
	{
		if(p1->data%2 != 0)
		{
			while(p1!=NULL && p1->data%2 != 0)
			{
				p1=p1->next;
			}
			p2->next=p1;
		}
		else
		{
			p2=p1;
			p1=p1->next;
		}
	}
	return head;
}

第五题（与第四题相同，就不贴代码了）
题目：

这一系列下来的收获：