oj.uz

답안 #960600

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
960600 2024-04-10T16:42:26 Z htphong0909 Mecho (IOI09_mecho) C++17
10 / 100
 36 ms 15448 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) {
    if (d[pos.fi][pos.se] - x * s <= 0) return 0;
    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]!='H' && a[v.fi][v.se]!='D') {
                d[v.fi][v.se]=d[u.fi][u.se]+s;
                q.push(v);
            }
        }
    }
    d[h.fi][h.se] = INF;
    ll l=1,r=1,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
10.0 / 100.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 2392 KB Output is correct
2 Correct 0 ms 2396 KB Output is correct
3 Incorrect 0 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 Correct 1 ms 2396 KB Output is correct
7 Incorrect 26 ms 15236 KB Output isn't correct
8 Correct 1 ms 2392 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 2648 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 2648 KB Output isn't correct
23 Incorrect 1 ms 2652 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 2804 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 4 ms 6492 KB Output isn't correct
34 Incorrect 4 ms 6888 KB Output isn't correct
35 Incorrect 7 ms 7260 KB Output isn't correct
36 Incorrect 5 ms 6748 KB Output isn't correct
37 Incorrect 5 ms 7260 KB Output isn't correct
38 Incorrect 7 ms 7512 KB Output isn't correct
39 Incorrect 6 ms 9304 KB Output isn't correct
40 Incorrect 7 ms 9564 KB Output isn't correct
41 Incorrect 10 ms 10184 KB Output isn't correct
42 Incorrect 7 ms 9560 KB Output isn't correct
43 Incorrect 8 ms 10076 KB Output isn't correct
44 Incorrect 10 ms 10588 KB Output isn't correct
45 Incorrect 8 ms 9816 KB Output isn't correct
46 Incorrect 9 ms 10584 KB Output isn't correct
47 Incorrect 12 ms 11108 KB Output isn't correct
48 Incorrect 10 ms 10588 KB Output isn't correct
49 Incorrect 10 ms 10840 KB Output isn't correct
50 Incorrect 19 ms 11356 KB Output isn't correct
51 Incorrect 14 ms 10588 KB Output isn't correct
52 Incorrect 16 ms 11096 KB Output isn't correct
53 Incorrect 16 ms 11864 KB Output isn't correct
54 Incorrect 13 ms 12932 KB Output isn't correct
55 Incorrect 13 ms 13668 KB Output isn't correct
56 Incorrect 19 ms 14168 KB Output isn't correct
57 Incorrect 14 ms 13324 KB Output isn't correct
58 Incorrect 15 ms 14016 KB Output isn't correct
59 Incorrect 20 ms 14684 KB Output isn't correct
60 Incorrect 16 ms 13404 KB Output isn't correct
61 Incorrect 18 ms 14172 KB Output isn't correct
62 Incorrect 30 ms 15092 KB Output isn't correct
63 Incorrect 33 ms 14928 KB Output isn't correct
64 Incorrect 35 ms 14940 KB Output isn't correct
65 Incorrect 36 ms 14936 KB Output isn't correct
66 Incorrect 31 ms 15112 KB Output isn't correct
67 Correct 31 ms 14940 KB Output is correct
68 Incorrect 26 ms 15144 KB Output isn't correct
69 Incorrect 27 ms 15136 KB Output isn't correct
70 Incorrect 26 ms 14972 KB Output isn't correct
71 Incorrect 26 ms 14928 KB Output isn't correct
72 Incorrect 27 ms 14940 KB Output isn't correct
73 Correct 24 ms 15196 KB Output is correct
74 Incorrect 30 ms 15360 KB Output isn't correct
75 Incorrect 23 ms 15192 KB Output isn't correct
76 Incorrect 26 ms 15196 KB Output isn't correct
77 Incorrect 23 ms 15192 KB Output isn't correct
78 Correct 23 ms 15192 KB Output is correct
79 Incorrect 28 ms 15196 KB Output isn't correct
80 Incorrect 23 ms 15196 KB Output isn't correct
81 Incorrect 23 ms 15196 KB Output isn't correct
82 Incorrect 25 ms 15252 KB Output isn't correct
83 Incorrect 24 ms 15124 KB Output isn't correct
84 Incorrect 33 ms 15196 KB Output isn't correct
85 Incorrect 23 ms 15196 KB Output isn't correct
86 Incorrect 24 ms 15196 KB Output isn't correct
87 Incorrect 26 ms 15196 KB Output isn't correct
88 Incorrect 23 ms 15192 KB Output isn't correct
89 Incorrect 29 ms 15192 KB Output isn't correct
90 Incorrect 24 ms 15448 KB Output isn't correct
91 Incorrect 26 ms 15184 KB Output isn't correct
92 Incorrect 31 ms 15260 KB Output isn't correct