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Yu Zhou likes to play Go
with Su Lu. From the historical research, we found that there are much difference on the rules between ancient go and modern go.
Here is the rules for ancient go they were playing:
One day, Yu Zhou was playing ancient go with Su Lu at home. It‘s Yu Zhou‘s move now. But they had to go for an emergency military action. Little Qiao looked at the game board and would like to know whether Yu Zhou has a move to kill at least one of Su Lu‘s chess.
The first line of the input gives the number of test cases, T(1≤T≤100). T test cases follow. Test cases are separated by an empty line. Each test case consist of 9 lines represent the game board. Each line consists of 9 characters. Each character represents a cell on the game board. .
represents an empty cell. x
represents a cell with black chess which owned by Yu Zhou. o
represents a cell with white chess which owned by Su Lu.
For each test case, output one line containing Case #x: y
, where x is the test case number (starting from 1) and y is Can kill in one move!!!
if Yu Zhou has a move to kill at least one of Su Lu‘s components. Can not kill in one move!!!
otherwise.
Sample Input | Sample Output |
---|---|
2 .......xo ......... ......... ..x...... .xox....x .o.o...xo ..o...... .....xxxo ....xooo. ......ox. .......o. ...o..... ..o.o.... ...o..... ......... .......o. ...x..... ........o |
Case #1: Can kill in one move!!! Case #2: Can not kill in one move!!! |
In the first test case, Yu Zhou has 4 different ways to kill Su Lu‘s component.
In the second test case, there is no way to kill Su Lu‘s component.
#include<cstdio> #include<cstring> #include<stack> #include<vector> #include<queue> #include<cmath> #include<cstdlib> #include<iostream> #include<algorithm> using namespace std; const int oo = 1e9+7; const int maxn = 3*1e6+7; int dir[4][2] = {{0,1},{0,-1},{1,0},{-1,0}}; int vis[20][20]; char maps[20][20]; int judge(int x, int y) { vis[x][y] = 1; int i, sx, sy; for(i = 0; i < 4; i++) { sx = x + dir[i][0]; sy = y + dir[i][1]; if(sx < 0 || sx >= 9 || sy < 0 || sy >= 9 || vis[sx][sy]) continue; if(maps[sx][sy] == ‘.‘) return 0; if(maps[sx][sy] == ‘o‘ && !judge(sx, sy)) return 0; } return 1; } int dfs(int x, int y) { int i; for(i = 0; i < 4; i++) { int sx, sy; sx = x+dir[i][0]; sy = y+dir[i][1]; if(maps[sx][sy] == ‘o‘) if(sx >= 0 && sx < 9 && sy >= 0 && sy < 9) { memset(vis, 0, sizeof(vis)); if(judge(sx, sy)) return 1; } } return 0; } int main() { int T, i, j, cas = 1, ok; scanf("%d", &T); while(T--) { ok = 0; for(i = 0; i < 9; i++) scanf("%s", maps[i]); for(i = 0; i < 9; i++) { for(j = 0; j < 9; j++) { if(maps[i][j] == ‘.‘) { maps[i][j] = ‘x‘; ok = dfs(i, j); maps[i][j] = ‘.‘; } if(ok == 1) break; } if(ok == 1)break; } if (ok == 1) printf ("Case #%d: Can kill in one move!!!\n", cas++); else printf ("Case #%d: Can not kill in one move!!!\n", cas++); } return 0; }
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原文地址:http://www.cnblogs.com/PersistFaith/p/4917046.html