Game |
Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others) |
Total Submission(s): 50 Accepted Submission(s): 44 |
Problem Description Bob and Alice are playing a new game. There are n boxes which have been numbered from 1 to n. Each box is either empty or contains several cards. Bob and Alice move the cards in turn. In each turn the corresponding player should choose a non-empty box A and choose another box B that B<A && (A+B)%2=1 && (A+B)%3=0. Then, take an arbitrary number (but not zero) of cards from box A to box B. The last one who can do a legal move wins. Alice is the first player. Please predict who will win the game. |
Input The first line contains an integer T (T<=100) indicating the number of test cases. The first line of each test case contains an integer n (1<=n<=10000). The second line has n integers which will not be bigger than 100. The i-th integer indicates the number of cards in the i-th box. |
Output For each test case, print the case number and the winner's name in a single line. Follow the format of the sample output. |
Sample Input 221 271 3 3 2 2 1 2 |
Sample Output Case 1: AliceCase 2: Bob |
Author hanshuai@whu |
Source The 5th Guangting Cup Central China Invitational Programming Contest |
Recommend notonlysuccess |
/*题意:1到n的盒子里,是空的或者装着卡片,每人轮流移动卡片,Alice先手,移动卡片的规则:每次选择一个A,然后选择一个B 要求 B using namespace std;int n;int x;int res=0;int t;void init(){ res=0;}int main(){ // freopen("in.txt","r",stdin); scanf("%d",&t); for(int ca=1;ca<=t;ca++){ init(); scanf("%d",&n); for(int i=1;i<=n;i++){ scanf("%d",&x); if(i%6==0||i%6==2||i%6==5) res^=x; } if(res) printf("Case %d: Alice\n",ca); else printf("Case %d: Bob\n",ca); } return 0;}