poj1027——The Same Game

模拟题。

#include<iostream>#include<cstdio>#include<cstring>using namespace std;const int maxn=20;char g[maxn][maxn];bool vis[maxn][maxn],flag[maxn][maxn];int dir[][4]={{-1,0},{1,0},{0,-1},{0,1}};class ball{public:int max,x,y;};int dfs(int x,int y){int i,ans=1;for(i=0;i<4;i++){int tempx=x+dir[i][0];int tempy=y+dir[i][1];if(tempx>=1&&tempx<=10&&tempy>=1&&tempy<=15){if(vis[tempx][tempy]&&flag[tempx][tempy]&&g[x][y]==g[tempx][tempy]){flag[tempx][tempy]=false;ans+=dfs(tempx,tempy);}}}return ans;}void update(){int i,j,k;for(j=1;j<=15;j++){for(i=1;i<10;i++){if(!vis[i][j]){k=i+1;while(k<=10&&!vis[k][j])k++;if(k<=10){g[i][j]=g[k][j];vis[i][j]=true;vis[k][j]=false;}else break;}}}for(j=1;j<15;j++){if(vis[1][j]==false){k=j+1;while(k<=15&&!vis[1][k])k++;if(k>15) break;else {i=1;while(i<=10&&vis[i][k]){vis[i][j]=true;vis[i][k]=false;g[i][j]=g[i][k];i++;}}}}}void solve(){int i,j,step=1;ball m;int sum=150,score=0;;memset(vis,true,sizeof(flag));while(1){m.max =0;memset(flag,true,sizeof(flag));for(j=1;j<=15;j++)for(i=1;i<=10;i++){if(vis[i][j]&&flag[i][j]){flag[i][j]=false;int k=dfs(i,j);if(k>m.max ){m.max =k;m.x=i;m.y=j;}}}if(m.max <=1)break;sum-=m.max ;score+=(m.max -2)*(m.max -2);printf("Move %d at (%d,%d): removed %d balls of color %c, got %d points./n",step++,m.x,m.y,m.max ,g[m.x][m.y],(m.max -2)*(m.max -2));memset(flag,true,sizeof(flag));flag[m.x][m.y]=false;dfs(m.x,m.y);for(i=1;i<=10;i++)for(j=1;j<=15;j++){if(!flag[i][j])vis[i][j]=flag[i][j];}update();}if(sum==0) score+=1000;printf("Final score: %d, with %d balls remaining. /n/n",score,sum);}int main(){int ca=1,n;int i,j;cin>>n;while(n--){for(i=10;i>0;i--)for(j=1;j<=15;j++)cin>>g[i][j];printf("Game %d: /n/n",ca++);solve();}return 0;}