oj.uz

답안 #655812

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
655812 2022-11-05T15:45:39 Z someone Bomb (IZhO17_bomb) C++14
27 / 100
 1000 ms 103792 KB 
#include <bits/stdc++.h>
//#define int long long
using namespace std;

struct Alien {
    int t, id;
};
 
const int N = 2500 + 42, INF = 1e9 + 42;

bool alien[N*N];
vector<Alien> add;
int n, m, t[N], sz[N*N];

int F(int i) {
    if(sz[i] < 0)
        return i;
    return sz[i] = F(sz[i]);
}

inline int getSz(int i) {
    return -sz[F(i)];
}

void U(int a, int b) {
    a = F(a), b = F(b);
    if(a == b)
        return;
    if(-sz[a] < -sz[b])
        swap(a, b);
    sz[a] += sz[b];
    sz[b] = a;
}

signed main() {
    ios::sync_with_stdio(false);
    cin.tie(0);
    cout.tie(0);
    
    for(int& p : sz)
        p = -1;
    
    cin >> n >> m;
    
    n++, m++;
    for(int i = 1; i < n; i++)
        for(int j = 1; j < m; j++) {
            char c; cin >> c;
            alien[m * i + j] = (c == '1');
        }
    
    int minLen = INF;
    for(int i = 1; i < n; i++)
        for(int j = 1; j < m; j++)
            if(alien[m * i + j]) {
                int id = m * i + j;
                t[j] = t[j-1] + 1;
                alien[id] = false;
                add.push_back({t[j], id});
                if(!alien[id+1])
                    minLen = min(minLen, t[j]);
            } else {
                t[j] = 0;
            }
    
    sort(add.begin(), add.end(),
    [](Alien a, Alien b) {
        if(a.t == b.t)
            return a.id < b.id;
        return a.t > b.t;
    });
    
    int ans = 0;
    multiset<int> len;
    for(Alien a : add) {
        int i = a.t, j = a.id;
        alien[j] = true;
        if(alien[j - m]) {
            len.erase(len.find(getSz(j - m)));
            U(j - m, j);
        }
        if(alien[j + m]) {
            len.erase(len.find(getSz(j + m)));
            U(j + m, j);
        }
        len.insert(getSz(j));
        if(i <= minLen) {
            auto it = len.begin();
            ans = max(ans, (*it) * i);
        }
    }
    cout << ans;
}

Subtask #1
27.0 / 100.0

# 결과 실행 시간 메모리 Grader output
1 Correct 10 ms 25684 KB Output is correct
2 Incorrect 12 ms 25740 KB Output isn't correct
3 Incorrect 11 ms 25684 KB Output isn't correct
4 Incorrect 12 ms 25684 KB Output isn't correct
5 Correct 12 ms 25752 KB Output is correct
6 Correct 11 ms 25568 KB Output is correct
7 Correct 11 ms 25556 KB Output is correct
8 Incorrect 11 ms 25556 KB Output isn't correct
9 Correct 12 ms 25628 KB Output is correct
10 Correct 11 ms 25568 KB Output is correct
11 Incorrect 11 ms 25624 KB Output isn't correct
12 Correct 11 ms 25568 KB Output is correct
13 Correct 11 ms 25556 KB Output is correct
14 Correct 11 ms 25508 KB Output is correct
15 Incorrect 11 ms 25544 KB Output isn't correct
16 Correct 14 ms 25556 KB Output is correct
17 Incorrect 11 ms 25556 KB Output isn't correct
18 Correct 11 ms 25556 KB Output is correct
19 Incorrect 12 ms 25588 KB Output isn't correct
20 Incorrect 12 ms 25628 KB Output isn't correct
21 Correct 11 ms 25560 KB Output is correct
22 Correct 14 ms 25556 KB Output is correct
23 Incorrect 12 ms 25684 KB Output isn't correct
24 Incorrect 13 ms 25628 KB Output isn't correct
25 Incorrect 12 ms 25624 KB Output isn't correct
26 Correct 13 ms 25760 KB Output is correct
27 Correct 42 ms 26872 KB Output is correct
28 Correct 13 ms 25804 KB Output is correct
29 Correct 33 ms 27044 KB Output is correct
30 Incorrect 20 ms 26576 KB Output isn't correct
31 Incorrect 16 ms 26276 KB Output isn't correct
32 Incorrect 17 ms 26244 KB Output isn't correct
33 Incorrect 26 ms 26564 KB Output isn't correct
34 Correct 13 ms 25684 KB Output is correct
35 Incorrect 15 ms 26196 KB Output isn't correct
36 Incorrect 52 ms 28192 KB Output isn't correct
37 Incorrect 13 ms 25556 KB Output isn't correct
38 Execution timed out 1083 ms 103648 KB Time limit exceeded
39 Incorrect 12 ms 25520 KB Output isn't correct
40 Incorrect 167 ms 35424 KB Output isn't correct
41 Incorrect 11 ms 25564 KB Output isn't correct
42 Incorrect 12 ms 25704 KB Output isn't correct
43 Execution timed out 1077 ms 103648 KB Time limit exceeded
44 Incorrect 38 ms 27084 KB Output isn't correct
45 Incorrect 977 ms 70920 KB Output isn't correct
46 Correct 964 ms 70756 KB Output is correct
47 Execution timed out 1016 ms 70700 KB Time limit exceeded
48 Incorrect 905 ms 70708 KB Output isn't correct
49 Execution timed out 1075 ms 103760 KB Time limit exceeded
50 Incorrect 933 ms 70816 KB Output isn't correct
51 Incorrect 927 ms 70840 KB Output isn't correct
52 Incorrect 899 ms 70720 KB Output isn't correct
53 Incorrect 895 ms 70820 KB Output isn't correct
54 Correct 490 ms 54420 KB Output is correct
55 Correct 474 ms 54352 KB Output is correct
56 Execution timed out 1035 ms 103792 KB Time limit exceeded
57 Correct 439 ms 54392 KB Output is correct
58 Correct 486 ms 54304 KB Output is correct
59 Correct 433 ms 54332 KB Output is correct
60 Correct 820 ms 70764 KB Output is correct
61 Execution timed out 1080 ms 103572 KB Time limit exceeded
62 Execution timed out 1092 ms 103672 KB Time limit exceeded
63 Execution timed out 1079 ms 103688 KB Time limit exceeded
64 Correct 478 ms 54328 KB Output is correct
65 Incorrect 861 ms 70876 KB Output isn't correct
66 Incorrect 872 ms 70960 KB Output isn't correct
67 Incorrect 995 ms 70952 KB Output isn't correct
68 Execution timed out 1072 ms 103616 KB Time limit exceeded
69 Correct 427 ms 54424 KB Output is correct
70 Incorrect 155 ms 37728 KB Output isn't correct
71 Incorrect 327 ms 46164 KB Output isn't correct
72 Incorrect 443 ms 54332 KB Output isn't correct
73 Incorrect 460 ms 54400 KB Output isn't correct
74 Incorrect 451 ms 54436 KB Output isn't correct
75 Incorrect 477 ms 54332 KB Output isn't correct
76 Incorrect 476 ms 54332 KB Output isn't correct
77 Incorrect 497 ms 54332 KB Output isn't correct
78 Incorrect 491 ms 54308 KB Output isn't correct
79 Incorrect 120 ms 38240 KB Output isn't correct
80 Incorrect 120 ms 38228 KB Output isn't correct
81 Incorrect 142 ms 40024 KB Output isn't correct
82 Incorrect 554 ms 54312 KB Output isn't correct
83 Incorrect 521 ms 54420 KB Output isn't correct
84 Incorrect 123 ms 38160 KB Output isn't correct
85 Incorrect 486 ms 54332 KB Output isn't correct
86 Execution timed out 1041 ms 103652 KB Time limit exceeded
87 Incorrect 459 ms 54504 KB Output isn't correct
88 Incorrect 539 ms 54396 KB Output isn't correct
89 Incorrect 715 ms 70808 KB Output isn't correct
90 Incorrect 256 ms 41772 KB Output isn't correct
91 Incorrect 583 ms 70908 KB Output isn't correct
92 Incorrect 710 ms 70836 KB Output isn't correct
93 Execution timed out 1093 ms 103600 KB Time limit exceeded
94 Incorrect 715 ms 70716 KB Output isn't correct
95 Incorrect 523 ms 54332 KB Output isn't correct
96 Incorrect 547 ms 54348 KB Output isn't correct
97 Execution timed out 1091 ms 103608 KB Time limit exceeded
98 Incorrect 538 ms 54316 KB Output isn't correct
99 Incorrect 733 ms 70716 KB Output isn't correct
100 Execution timed out 1066 ms 103604 KB Time limit exceeded