2018.cpp

威士忌的HDU题解.大概有260多题的源码。对于学习非常有好处。

/*
2018 母牛的故事
Time Limit : 1000 ms  Memory Limit : 32768 K  Output Limit : 256 K

GUN C++
*/
#include <iostream.h>
using namespace std;

#define MAX 1000

int main()
{
    int n,ca,num[4]={1,2,3,4},mum,year1,year2,year3;
    while(cin>>n && n!=0)
    {
        if(n<=4)
        {   cout<<num[n-1]<<endl;continue;}
        mum=1;year1=1;year2=1;year3=1;
        for(ca=5;ca<=n;ca++)
        {
            mum+=year3;
            year3=year2;
            year2=year1;
            year1=mum;
        }
        cout<<mum+year1+year2+year3<<endl;
    }
    return 0;
}