Submission #1065066

#	Time	Username	Problem	Language	Result	Execution time	Memory
1065066		Dennis_Jason	Maze (JOI23_ho_t3)	C++14	0 / 100	2089 ms	452 KiB

Main

#include <bitset>
#include <cmath>
#include <functional>
#include <algorithm>
#include <numeric>
#include <deque>
#include <fstream>
#include <iomanip>
#include <iostream>
#include <iterator>
#include <limits>
#include <list>
#include <map>
#include <unordered_map>
#include <queue>
#include <set>
#include <stack>
#include <string>
#include <vector>
#include <cstring>
#include <climits>
#define pb push_back
#define MOD 1000000007
#define NMAX 6000001
#define nl '\n'
#define INF 1000000007
#define pii1 pair<int, pair<int,int>>  (1,(1,2));
#define pii pair<int,int>
#define tpl tuple<int,int,int,int,int>
using namespace std;
ifstream fin("data.in");
ofstream fout("data.out");
/*
    ====================DEMONSTRATION======================

        n=2
        1....#####..##
        ....##########
        ####..........
        ##########....
        ##########....
        1....####....#
    =========================END===========================

 */
int r,c,n;
int x,y,a,b,node_s,node_f;
int di[]={1,-1,0,0};
int dj[]={0,0,1,-1};
int **mat,**cost;
bool **vis;
bool inmat(int i,int j)
{
    return i>=1 && i<=r && j>=1 && j<=c;
}
void dfs(int i,int j,int c,int o,int p)
{
    vis[i][j]=1;
    for(int d=0;d<4;++d)
    {
        int inou=di[d]+i;
        int jnou=dj[d]+j;
        if(inmat(inou,jnou) && cost[inou][jnou]>c )
        {
            if(mat[inou][jnou]==0)
            {
                cost[inou][jnou]=min(cost[inou][jnou],c);
                dfs(inou,jnou,c,o,p);
//                dfs(inou,jnou,c+1,inou,jnou);
            }
            else if(mat[inou][jnou]==1 && (abs(inou-o)+abs(jnou-p)+1)<=n)
            {
                cost[inou][jnou]=min(cost[inou][jnou],c);
                dfs(inou,jnou,c,o,p);
//                cout<<inou<<" "<<jnou<<"----"<<o<<" "<<p<<nl;
//                dfs(inou,jnou,c+1,inou,jnou);
            }
            else
            {
                cost[inou][jnou]=min(cost[inou][jnou],c+1);
                dfs(inou,jnou,c+1,inou,jnou);
            }
        }
    }
}

signed main() {


    cin>>r>>c>>n;
    mat= new int*[r+1];
    for(int i=1;i<=r;++i)
        mat[i]=new int[c+1];
    cost= new int*[r+1];
    for(int i=1;i<=r;++i)
        cost[i]=new int[c+1];
    vis=new bool*[r+1];
    for(int i=1;i<=r;++i)
        vis[i]=new bool[c+1];
    cin>>x>>y;
    cin>>a>>b;
    for(int i=1;i<=r;++i)
    {
        for(int j=1;j<=c;++j)
        {
            cost[i][j]=INF;
            char x;
            cin>>x;
            if(x=='.')
                mat[i][j]=0;
            else
                mat[i][j]=1;
        }
    }

    dfs(x,y,0,INF,INF);
    cout<<cost[a][b];


    return 0;
}

• Subtask 1: 0 / 8
• Subtask 2: 0 / 19
• Subtask 3: 0 / 16
• Subtask 4: 0 / 19
• Subtask 5: 0 / 5
• Subtask 6: 0 / 19
• Subtask 7: 0 / 8
• Subtask 8: 0 / 6