HDU 4764 Stone (巴什博弈)
2013-09-28 23:27
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Stone
Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 109 Accepted Submission(s): 85
[align=left]Problem Description[/align]
Tang and Jiang are good friends. To decide whose treat it is for dinner, they are playing a game. Specifically, Tang and Jiang will alternatively write numbers (integers) on a white board. Tang writes first, then Jiang, then again
Tang, etc... Moreover, assuming that the number written in the previous round is X, the next person who plays should write a number Y such that 1 <= Y - X <= k. The person who writes a number no smaller than N first will lose the game. Note that in the first
round, Tang can write a number only within range [1, k] (both inclusive). You can assume that Tang and Jiang will always be playing optimally, as they are both very smart students.
[align=left]Input[/align]
There are multiple test cases. For each test case, there will be one line of input having two integers N (0 < N <= 10^8) and k (0 < k <= 100). Input terminates when both N and k are zero.
[align=left]Output[/align]
For each case, print the winner's name in a single line.
[align=left]Sample Input[/align]
1 1 30 3 10 2 0 0
[align=left]Sample Output[/align]
Jiang Tang Jiang
[align=left]Source[/align]
2013 ACM/ICPC Asia Regional Changchun Online
[align=left]Recommend[/align]
liuyiding
题意:
两个人写数字,要求当前个写的数字Y与前一个写的数字X满足:
1. 1 <= Y - X <= k
2. Y要求小于N(第一次取只需满足1<=Y<=k);
不都满足则输。
思路:
可将题目意思理解为取石子(题目有提示),取的石子是有规定的,谁能取到第N-1个,那么就能赢得比赛。
对了,就是巴什博弈。
/************************************************************************* > File Name: Stone.cpp > Author: BSlin > Mail: > Created Time: 2013年09月28日 星期六 12时22分50秒 ************************************************************************/ #include <iostream> #include <cstdio> #include <cstring> #include <string> #include <cstdlib> #include <cmath> #include <algorithm> #include <iterator> #include <vector> #include <map> #include <set> #include <stack> #include <queue> #define MP make_pair #define INF (1<<30) #define PI acos(-1.0) #define esp 1e-8 const int dx[4]={0,0,0,0}; using namespace std; #define read freopen("in.txt","r",stdin) #define write freopen("out.txt","w",stdout) #if defined (_WIN32) || defined (__WIN32) || defined (WIN32) || defined (__WIN32__) #define LL __int64 #define LLS "%" "I" "6" "4" "d" #else #define LL long long #define LLS "%" "l" "l" "d" #endif int main(int argc, char** argv) { //read; int n,k,ans; while(scanf("%d%d",&n,&k)){ if(n == 0 && k == 0) break; if(n == 1) { printf("Jiang\n"); continue; } else { ans = (n - 1) % (k + 1); if(ans == 0) { printf("Jiang\n"); } else printf("Tang\n"); } } return 0; }
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