제출 #850860

#제출 시각아이디문제언어결과실행 시간메모리
850860ttamx로봇 대회 (IOI23_robot)C++17
100 / 100
112 ms6412 KiB
#include "robot.h" #include<bits/stdc++.h> using namespace std; const int BLANK=0; const int PATH=1; const int WEST=2; const int SOUTH=3; const int EAST=4; const int NORTH=5; string dir_char="WSENTH"; int dir_col[4]={WEST,SOUTH,EAST,NORTH}; int getDir(int col){ return col>=2?col-2:-1; } void solve(vector<int> state,int &next_col,int &next_dir){ bool is_start=state[1]==-2&&state[4]==-2; bool is_end=state[2]==-2&&state[3]==-2; int cur_dir=getDir(state[0]); if(cur_dir!=-1){ bool cleanup=state[cur_dir+1]!=BLANK&&getDir(state[cur_dir+1])!=(cur_dir^2); if(!cleanup){ for(int i=1;i<=4;i++){ int new_dir=(cur_dir+i)%4; if(state[new_dir+1]==BLANK||getDir(state[new_dir+1])==(new_dir^2)){ next_col=dir_col[new_dir]; next_dir=new_dir; return; } } return; } for(int i=1;i<=4;i++){ int new_dir=(cur_dir+i)%4; if(getDir(state[new_dir+1])==(new_dir^2)){ next_dir=new_dir; return; } } bool fillup=is_start; for(int i=1;i<=4;i++)if(state[i]==PATH)fillup=true; if(fillup){ next_col=PATH; next_dir=is_end?4:cur_dir; return; } next_col=BLANK; next_dir=cur_dir; return; } if(is_start){ next_col=state[2]==BLANK?SOUTH:EAST; next_dir=state[2]==BLANK?1:2; return; } if(is_end){ next_col=EAST; return; } for(int new_dir=0;new_dir<4;new_dir++){ if(getDir(state[new_dir+1])==(new_dir^2)){ next_col=dir_col[new_dir]; next_dir=new_dir; return; } } } void program_pulibot(){ for(int c=0;c<=5;c++){ for(int w=-2;w<=5;w++){ for(int s=-2;s<=5;s++){ for(int e=-2;e<=5;e++){ for(int n=-2;n<=5;n++){ vector<int> state={c,w,s,e,n}; int next_col=c,next_dir=5; solve(state,next_col,next_dir); set_instruction(state,next_col,dir_char[next_dir]); } } } } } };
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