oj.uz

답안 #960585

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
960585 2024-04-10T16:18:32 Z htphong0909 Mecho (IOI09_mecho) C++17
4 / 100
 155 ms 15644 KB 
#include<bits/stdc++.h>
using namespace std;
#define fi first
#define se second

using ll = long long;
using ii = pair<int, int>;

const int N = 1e6+5;
const int INF = 1e9;

ll d[1000][1000],m[1000][1000],n,s;
char a[1000][1000];
ll dx[4]={1,0,0,-1};
ll dy[4]={0,1,-1,0};
ii pos,h;

bool bfs(ll x) {
    queue<ii> q;
    q.push(pos);
    for(int i=0;i<n;i++) {
        for(int j=0;j<n;j++) {
            m[i][j]=0;
        }
    }
    while(!q.empty()) {
        ii u=q.front();
        q.pop();
        for(int i=0;i<4;i++) {
            ii v={u.fi+dx[i],u.se+dy[i]};
            if(v.fi<0 || v.fi>=n || v.se<0 || v.se>=n) continue;
            if(m[v.fi][v.se]==0 && a[v.fi][v.se]!='T' &&
               d[v.fi][v.se]-x*s>m[u.fi][u.se]+1 && a[v.fi][v.se]!='M') {
                m[v.fi][v.se]=m[u.fi][u.se]+1;
                q.push(v);
            }
        }
    }
    if(m[h.fi][h.se]>0) return 1; else return 0;
}

int main()
{
    ios_base::sync_with_stdio(false);
    cin.tie(NULL);
    queue<ii> q;
    cin >> n >> s;
    for(int i=0;i<n;i++) {
        for(int j=0;j<n;j++) {
            cin >> a[i][j];
            if(a[i][j]=='H') {
                q.push({i,j});
            }
            if(a[i][j]=='M') pos={i,j};
            if(a[i][j]=='D') h={i,j};
        }
    }
    while(!q.empty()) {
        ii u=q.front();
        q.pop();
        for(int i=0;i<4;i++) {
            ii v={u.fi+dx[i],u.se+dy[i]};
            if(v.fi<0 || v.fi>=n || v.se<0 || v.se>=n) continue;
            if(d[v.fi][v.se]==0 && a[v.fi][v.se]!='T' && a[v.fi][v.se]!='D' && a[v.fi][v.se] != 'H') {
                d[v.fi][v.se]=d[u.fi][u.se]+s;
                q.push(v);
            }
        }
    }
    ll l=0,r=10000000000,ans=-1;
    while(l<=r) {
        ll m=(l+r)/2;
        if(bfs(m)) {
            ans=m;
            l=m+1;
        }
        else {
            r=m-1;
        }
    }
    cout << ans;
    return 0;
}

Subtask #1
4.0 / 100.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 1 ms 2396 KB Output isn't correct
2 Incorrect 2 ms 2396 KB Output isn't correct
3 Incorrect 2 ms 2396 KB Output isn't correct
4 Incorrect 1 ms 2396 KB Output isn't correct
5 Incorrect 1 ms 2396 KB Output isn't correct
6 Incorrect 1 ms 2396 KB Output isn't correct
7 Incorrect 77 ms 15184 KB Output isn't correct
8 Correct 1 ms 2396 KB Output is correct
9 Incorrect 1 ms 2396 KB Output isn't correct
10 Incorrect 1 ms 2396 KB Output isn't correct
11 Incorrect 1 ms 2396 KB Output isn't correct
12 Incorrect 1 ms 2652 KB Output isn't correct
13 Incorrect 1 ms 2652 KB Output isn't correct
14 Correct 1 ms 2652 KB Output is correct
15 Incorrect 1 ms 2396 KB Output isn't correct
16 Incorrect 1 ms 2396 KB Output isn't correct
17 Incorrect 1 ms 2396 KB Output isn't correct
18 Incorrect 1 ms 2396 KB Output isn't correct
19 Incorrect 1 ms 2652 KB Output isn't correct
20 Incorrect 1 ms 2652 KB Output isn't correct
21 Incorrect 1 ms 2652 KB Output isn't correct
22 Incorrect 1 ms 2652 KB Output isn't correct
23 Incorrect 1 ms 2648 KB Output isn't correct
24 Incorrect 1 ms 2652 KB Output isn't correct
25 Incorrect 1 ms 2652 KB Output isn't correct
26 Incorrect 1 ms 2652 KB Output isn't correct
27 Incorrect 1 ms 2652 KB Output isn't correct
28 Incorrect 1 ms 2652 KB Output isn't correct
29 Incorrect 1 ms 2652 KB Output isn't correct
30 Incorrect 1 ms 2652 KB Output isn't correct
31 Incorrect 1 ms 2908 KB Output isn't correct
32 Incorrect 1 ms 2908 KB Output isn't correct
33 Incorrect 12 ms 6640 KB Output isn't correct
34 Incorrect 14 ms 6744 KB Output isn't correct
35 Incorrect 17 ms 7004 KB Output isn't correct
36 Incorrect 15 ms 6748 KB Output isn't correct
37 Incorrect 19 ms 7260 KB Output isn't correct
38 Incorrect 17 ms 7592 KB Output isn't correct
39 Incorrect 18 ms 9308 KB Output isn't correct
40 Incorrect 23 ms 9560 KB Output isn't correct
41 Incorrect 22 ms 10076 KB Output isn't correct
42 Incorrect 23 ms 9808 KB Output isn't correct
43 Incorrect 29 ms 10248 KB Output isn't correct
44 Incorrect 26 ms 10588 KB Output isn't correct
45 Incorrect 27 ms 9944 KB Output isn't correct
46 Incorrect 34 ms 10588 KB Output isn't correct
47 Incorrect 31 ms 11096 KB Output isn't correct
48 Incorrect 32 ms 10332 KB Output isn't correct
49 Incorrect 40 ms 10844 KB Output isn't correct
50 Incorrect 41 ms 11352 KB Output isn't correct
51 Incorrect 38 ms 10588 KB Output isn't correct
52 Incorrect 50 ms 11300 KB Output isn't correct
53 Incorrect 49 ms 11864 KB Output isn't correct
54 Incorrect 44 ms 12892 KB Output isn't correct
55 Incorrect 58 ms 13656 KB Output isn't correct
56 Incorrect 61 ms 14424 KB Output isn't correct
57 Incorrect 51 ms 13148 KB Output isn't correct
58 Incorrect 65 ms 13916 KB Output isn't correct
59 Incorrect 75 ms 14684 KB Output isn't correct
60 Incorrect 57 ms 13400 KB Output isn't correct
61 Incorrect 73 ms 14352 KB Output isn't correct
62 Incorrect 86 ms 15100 KB Output isn't correct
63 Incorrect 79 ms 14940 KB Output isn't correct
64 Incorrect 153 ms 15108 KB Output isn't correct
65 Incorrect 155 ms 15108 KB Output isn't correct
66 Incorrect 110 ms 15100 KB Output isn't correct
67 Correct 82 ms 15016 KB Output is correct
68 Incorrect 40 ms 15140 KB Output isn't correct
69 Incorrect 47 ms 14940 KB Output isn't correct
70 Incorrect 35 ms 14928 KB Output isn't correct
71 Incorrect 32 ms 15004 KB Output isn't correct
72 Incorrect 53 ms 14940 KB Output isn't correct
73 Incorrect 30 ms 15192 KB Output isn't correct
74 Incorrect 67 ms 15196 KB Output isn't correct
75 Incorrect 52 ms 15188 KB Output isn't correct
76 Incorrect 52 ms 15440 KB Output isn't correct
77 Incorrect 50 ms 15644 KB Output isn't correct
78 Correct 50 ms 15196 KB Output is correct
79 Incorrect 66 ms 15156 KB Output isn't correct
80 Incorrect 45 ms 15340 KB Output isn't correct
81 Incorrect 43 ms 15148 KB Output isn't correct
82 Incorrect 60 ms 15336 KB Output isn't correct
83 Incorrect 57 ms 15304 KB Output isn't correct
84 Incorrect 90 ms 15292 KB Output isn't correct
85 Incorrect 46 ms 15192 KB Output isn't correct
86 Incorrect 48 ms 15192 KB Output isn't correct
87 Incorrect 65 ms 15296 KB Output isn't correct
88 Incorrect 51 ms 15240 KB Output isn't correct
89 Incorrect 68 ms 15248 KB Output isn't correct
90 Incorrect 60 ms 15192 KB Output isn't correct
91 Incorrect 63 ms 15244 KB Output isn't correct
92 Incorrect 66 ms 15468 KB Output isn't correct