kiki's game

题目描述

Recently kiki has nothing to do. While she is bored, an idea appears in his mind, she just playes the checkerboard game.The size of the chesserboard is n*m.First of all, a coin is placed in the top right corner(1,m). Each time one people can move the coin into the left, the underneath or the left-underneath blank space.The person who can't make a move will lose the game. kiki plays it with ZZ.The game always starts with kiki. If both play perfectly, who will win the game? 

 

输入

Input contains multiple test cases. Each line contains two integer n, m (0<n,m<=2000). The input is terminated when n=0 and m=0. 

 

输出

If kiki wins the game printf "Wonderful!", else "What a pity!". 

 

样例输入

5 35 46 60 0

样例输出

What a pity!Wonderful!Wonderful!

这道题目，我的想法就是把问题简单化，倒推，找出问题的规律性，很多时候把问题简单化，规律化对问题的求解是很有帮助的

#include <stdio.h>
int main()
{
    int m,n;
    while( scanf("%d%d",&n,&m) && n && m )
    {
        if( n%2 && m%2 )    printf("What a pity!\n");
        else    printf("Wonderful!\n");
    }
    return 0;
}