제출 #1025143

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
1025143		Dennis_Jason	Awesome Arrowland Adventure (eJOI19_adventure)	C++14	34 / 100	1 ms	856 KiB

adventure

#include <bits/stdc++.h>
#define NMAX 200001
#define int long long
#define MAX 1001
#define pb push_back
#define eb emplace_back
#define MOD 1000000007
#define nl '\n'
#define INF  1000000007
#define LLONG_MAX 9223372036854775807
#define pii pair<int,int>
#define tpl tuple<int,int,int,int>
#pragma GCC optimize("O3")
using namespace std;
ifstream fin("aib.in");
ofstream fout("aib.out");
int n,m;
int mat[501][501];
bool vis[501][501];
int dp[501][501];
bool inmat(int i,int j)
{
    return i>=1 && i<=n && j>=1 && j<=m;
}
void run(int i,int j)
{
    queue<tpl>q;
    for(int d=1;d<=4;++d)
    {
        int r;
        if(d<mat[i][j])
            r=4-mat[i][j]+d;
        else
            r=d-mat[i][j];
        q.push({i,j,d,r});
    }
    while(!q.empty())
    {
        auto [x,y,dir,rot]=q.front();
        q.pop();
        dp[x][y]=min(dp[x][y],rot);
        int inou=x;
        int jnou=y;
        if(mat[x][y]==5)
            continue;
        if(dir==1)
        {
            inou--;
            if(inmat(inou,jnou))
            {
                for(int d=1;d<=4;++d)
                {
                    int r;
                    if(d<mat[inou][jnou])
                        r=4-mat[inou][jnou]+d;
                    else
                        r=d-mat[inou][jnou];
                    if(dp[inou][jnou]>rot+r)
                        q.push({inou,jnou,d,rot+r});
                }
            }
        }
        else if(dir==2)
        {
            jnou++;
            if(inmat(inou,jnou))
            {
                for(int d=1;d<=4;++d)
                {
                    int r;
                    if(d<mat[inou][jnou])
                        r=4-mat[inou][jnou]+d;
                    else
                        r=d-mat[inou][jnou];
                    if(dp[inou][jnou]>rot+r)
                        q.push({inou,jnou,d,rot+r});
                }
            }
        }
        else if(dir==3)
        {
            inou++;
            if(inmat(inou,jnou))
            {
                for(int d=1;d<=4;++d)
                {
                    int r;
                    if(d<mat[inou][jnou])
                        r=4-mat[inou][jnou]+d;
                    else
                        r=d-mat[inou][jnou];
                    if(dp[inou][jnou]>rot+r)
                        q.push({inou,jnou,d,rot+r});
                }
            }
        }
        else
        {
            jnou--;
            if(inmat(inou,jnou))
            {
                for(int d=1;d<=4;++d)
                {
                    int r;
                    if(d<mat[inou][jnou])
                        r=4-mat[inou][jnou]+d;
                    else
                        r=d-mat[inou][jnou];
                    if(dp[inou][jnou]>rot+r)
                        q.push({inou,jnou,d,rot+r});
                }
            }
        }

    }
}
signed main()
{
    cin>>n>>m;
    for(int i=1;i<=n;++i)
    {
        for(int j=1;j<=m;++j)
        {

            dp[i][j]=INF;
            char x;
            cin>>x;
            if(x=='N')
                mat[i][j]=1;
            else if(x=='E')
                mat[i][j]=2;
            else if(x=='S')
                mat[i][j]=3;
            else if(x=='W')
                mat[i][j]=4;
            else
                mat[i][j]=5;
        }
    }
    if(mat[1][1]==5)
    {
        cout<<-1;
        return 0;
    }
    run(1,1);
    if(dp[n][m]==INF)
        cout<<-1;
    else
        cout<<dp[n][m];




    return 0;
}

컴파일 시 표준 에러 (stderr) 메시지

adventure.cpp:10: warning: "LLONG_MAX" redefined
   10 | #define LLONG_MAX 9223372036854775807
      | 
In file included from /usr/lib/gcc/x86_64-linux-gnu/10/include/limits.h:195,
                 from /usr/lib/gcc/x86_64-linux-gnu/10/include/syslimits.h:7,
                 from /usr/lib/gcc/x86_64-linux-gnu/10/include/limits.h:34,
                 from /usr/include/c++/10/climits:42,
                 from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:39,
                 from adventure.cpp:1:
/usr/include/limits.h:135: note: this is the location of the previous definition
  135 | #  define LLONG_MAX __LONG_LONG_MAX__
      | 
adventure.cpp: In function 'void run(long long int, long long int)':
adventure.cpp:39:14: warning: structured bindings only available with '-std=c++17' or '-std=gnu++17'
   39 |         auto [x,y,dir,rot]=q.front();
      |              ^

• Subtask 1: 10 / 10
• Subtask 2: 12 / 12
• Subtask 3: 12 / 12
• Subtask 4: 0 / 16
• Subtask 5: 0 / 50