A-Oil Deposits
来源:互联网 发布:淘宝联盟佣金规则 编辑:程序博客网 时间:2024/06/08 20:03
FloodFill,没什么好说的,因为油田面积不会超过100,所以dfs没有任何压力……
#include <cstdio>#include <cstring>#include <cstdlib>int dx[10] = {0, 1, 1, 1, 0, 0, -1, -1, -1}, dy[10] = {0, -1, 0, 1, -1, 1, -1, 0, 1};char g[110][110];int n, m;int f[110][110];void dfs(int x, int y, int color) { if (f[x][y]) return; f[x][y] = color; for (int i=1; i<=8; ++i) { int xx = x+dx[i], yy= y+dy[i]; if ((xx<0) || (xx>=n) || (yy<0) || (yy>=m)) continue; if ((!f[xx][yy])&&(g[xx][yy]=='@')) { dfs(xx, yy, color); } }}void doit() { char waste[50]; int c = 0; scanf("%d%d", &n, &m); gets(waste); memset(f, 0, sizeof(f)); memset(g, 0, sizeof(g)); if (n==0) exit(0); for (int i=0; i<n; ++i) { gets(g[i]); } for (int i=0; i<n; ++i) { for (int j=0; j<m; ++j) { if ((!f[i][j]) && (g[i][j]=='@')) { dfs(i,j,++c); } } } printf("%d\n", c);}int main() { while(1) { doit(); } return 0;}
大神们别鄙视我的代码……
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