https://www.luogu.org/problemnew/show/P1518

題解：模擬

/* *@Author: STZG *@Language: C++ */ #include <bits/stdc++.h> #include<iostream> #include<algorithm> #include<cstdlib> #include<cstring> #include<cstdio> #include<string> #include<vector> #include<bitset> #include<queue> #include<deque> #include<stack> #include<cmath> #include<list> #include<map> #include<set> //#define DEBUG #define RI register int #define endl "\n" using namespace std; typedef long long ll; //typedef __int128 lll; const int N=10+10; const int M=100000+10; const int MOD=1e9+7; const double PI = acos(-1.0); const double EXP = 1E-8; const int INF = 0x3f3f3f3f; int t,n,m,k,p,l,r,u,v,cx,cy,ct,fx,fy,ft; int ans,cnt,flag,temp,sum; bool vis[N][N][4][N][N][4]; char str[N][N]; int dir[4][2]= {-1,0,0,1,1,0,0,-1}; int main() { #ifdef DEBUGfreopen("input.in", "r", stdin);//freopen("output.out", "w", stdout); #endif//ios::sync_with_stdio(false);//cin.tie(0);//cout.tie(0);//scanf("%d",&t);//while(t--){//scanf("%d",&n);n=10;for(int i=1;i<=10;i++){scanf("%s",str[i]+1);for(int j=1;j<=n;j++){if(str[i][j]=='C'){cx=i;cy=j;}else if(str[i][j]=='F'){fx=i;fy=j;}}}int x,y;while(1){if(cx==fx&&cy==fy){ans=cnt;break;}if(vis[cx][cy][ct][fx][fy][ft])break;cnt++;//cout<<cnt<<endl;vis[cx][cy][ct][fx][fy][ft]=1;//cout<<cx<<" "<<cy<<endl;x=cx+dir[ct][0];y=cy+dir[ct][1];if(1<=x&&x<=n&&1<=y&&y<=n&&str[x][y]!='*'){cx=x;cy=y;}else{ct++;ct%=4;}//cout<<fx<<" "<<fy<<endl;x=fx+dir[ft][0];y=fy+dir[ft][1];if(1<=x&&x<=n&&1<=y&&y<=n&&str[x][y]!='*'){fx=x;fy=y;}else{ft++;ft%=4;}}cout<<ans<<endl;//}#ifdef DEBUGprintf("Time cost : %lf s\n",(double)clock()/CLOCKS_PER_SEC); #endif//cout << "Hello world!" << endl;return 0; }

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