Submission #1270135

#	Time	Username	Problem	Language	Result	Execution time	Memory
1270135		truongdz_top12	Robot Contest (IOI23_robot)	C++20	0 / 100	36 ms	5868 KiB

robot

#include "robot.h"
#include<bits/stdc++.h>
using namespace std;
const string dir="HWSEN";
const int nothing=-4;
const int boundary=-3;
const int obstacle=-2;
const int blank=-1;
const int path=0;
const int west=1;
const int south=2;
const int east=3;
const int north=4;
int pos=0;
pair<char,int>make_move(int d){
    return {dir[d],d};
}
int prv(int d){
    return (d+1)%4+1;
}
int nxt(int d){
    return d%4+1;
}
pair<char,int>get(vector<int>S){
    for(int i=0;i<5;++i)
        --S[i];
    bool Start=(S[west]==boundary&&S[north]==boundary);
    bool End=(S[east]==boundary&&S[south]==boundary);
    if(S[pos]==blank){
        if(Start){
            if(S[south]==blank)
                return make_move(south);
            if(S[east]==blank)
                return make_move(east);
            return {'-',nothing};
        }
        if(End)
            return {'H',east};
        for(int nd=1;nd<5;++nd)
            if(S[nd]==prv(nd))
                return make_move(nd);
        return {'-',nothing};
    }
    if(S[pos]<=path)
        return {'-',nothing};
    if(S[pos]==prv(S[pos])){
        int nd=nxt(S[pos]);
        while(S[nd]!=blank&&S[nd]!=prv(nd))
            nd=nxt(nd);
        return make_move(nd);
    }
    for(int nd=1;nd<5;++nd)
        if(S[nd]==prv(nd))
            return {dir[nd],S[pos]};
    if(Start||count(S.begin(),S.end(),path)>0){
        if(End)
            return {'T',path};
        else
            return {dir[S[pos]],path};
    }
    return {dir[S[pos]],blank};
}
void program_pulibot(){
    vector<int>S(5);
    for(S[0]=-2;S[0]<=5;++S[0])
        for(S[1]=-2;S[1]<=5;++S[1])
            for(S[2]=-2;S[2]<=5;++S[2])
                for(S[3]=-2;S[3]<=5;++S[3])
                    for(S[4]=-2;S[4]<=5;++S[4]){
                        auto[A,Z]=get(S);
                            if(Z!=-4)
                                set_instruction(S,Z+1,A);
    }
}

• Subtask 0: 0 / 0
• Subtask 1: 0 / 6
• Subtask 2: 0 / 10
• Subtask 3: 0 / 18
• Subtask 4: 0 / 20
• Subtask 5: 0 / 46