oj.uz

Submission #87289

# Submission time Handle Problem Language Result Execution time Memory
87289 2018-11-30T07:39:27 Z Yaroslaff Bomb (IZhO17_bomb) C++14
49 / 100
 514 ms 132096 KB 
#include <bits/stdc++.h>

#define pb push_back
#define F first
#define S second
#define ll long long
//#define int ll
#define ld long double
#define null nullptr
#define endl '\n'

using namespace std;

mt19937 gen(chrono::system_clock::now().time_since_epoch().count());

const int M = 1e9 + 7;
const int N = 2507;

int n, m, x[N][N], l[N][N], r[N][N], res[N], ans;
string s[N];

main() {
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    cout.tie(0);
#ifdef LOCAL
    freopen("input.txt","r",stdin);
    freopen("output.txt","w",stdout);
#endif
    cin >> n >> m;
    for (int i = 0; i < n; i++){
        cin >> s[i];res[i + 1] = N;
        for (int j = 0; j < m; j++)
            x[i][j] = s[i][j] - '0';
    }
    for (int i = 0; i < n; i++)
    for (int j = 0; j < m; j++){
        if (!x[i][j]) l[i][j] = 0;
        else l[i][j] = (j ? l[i][j - 1] : 0) + 1;
    }
    for (int i = n - 1; i >= 0; i--)
    for (int j = m - 1; j >= 0; j--){
        if (!x[i][j]) r[i][j] = 0;
        else r[i][j] = r[i][j + 1] + 1;
    }
    for (int j = 0; j < m; j++){
        int tl = N;
        int tr = N;
        int p = -1;
        for (int i = 0; i <= n; i++){
            if (i != n && x[i][j] == 1){
                res[1] = min(res[1], l[i][j] + r[i][j] - 1);
                int len = i - p;
                tl = min(tl, l[i][j]);
                tr = min(tr, r[i][j]);
                res[len] = min(res[len], tl + tr - 1);
            }
            if (i == n || x[i][j] == 0){
                int l = i - p;
//                cerr << l << endl;
                if (l != 1) res[l] = 0;
                tl = tr = N;
                p = i;
            }
        }
        tl = N;
        tr = N;
        p = n;
        for (int i = n - 1; i >= -1; i--){
            if (i != -1 && x[i][j] == 1){
                res[1] = min(res[1], l[i][j] + r[i][j] - 1);
                int len = p - i;
                tl = min(tl, l[i][j]);
                tr = min(tr, r[i][j]);
                res[len] = min(res[len], tl + tr - 1);
            }
            if (i == -1 || x[i][j] == 0){
                int l = p - i;
//                cerr << l << endl;
                if (l != 1) res[l] = 0;
                tl = tr = N;
                p = i;
            }
        }
    }
    for (int i = 2; i <= n; i++)
        res[i] = min(res[i], res[i - 1]);
    for (int i = 1; i <= n; i++)
        ans = max(ans, i*res[i]);
    cout << ans;
    return 0;
}

Compilation message

bomb.cpp:22:6: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
 main() {
      ^

Subtask #1
49.0 / 100.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 504 KB Output is correct
2 Correct 2 ms 768 KB Output is correct
3 Correct 29 ms 30768 KB Output is correct
4 Correct 29 ms 30768 KB Output is correct
5 Correct 2 ms 30768 KB Output is correct
6 Correct 2 ms 30768 KB Output is correct
7 Correct 2 ms 30768 KB Output is correct
8 Correct 2 ms 30768 KB Output is correct
9 Correct 3 ms 30768 KB Output is correct
10 Correct 2 ms 30768 KB Output is correct
11 Correct 2 ms 30768 KB Output is correct
12 Correct 2 ms 30768 KB Output is correct
13 Correct 2 ms 30768 KB Output is correct
14 Correct 2 ms 30768 KB Output is correct
15 Correct 2 ms 30768 KB Output is correct
16 Correct 2 ms 30768 KB Output is correct
17 Correct 3 ms 30768 KB Output is correct
18 Correct 3 ms 30768 KB Output is correct
19 Correct 3 ms 30768 KB Output is correct
20 Correct 3 ms 30768 KB Output is correct
21 Correct 3 ms 30768 KB Output is correct
22 Correct 3 ms 30768 KB Output is correct
23 Correct 4 ms 30768 KB Output is correct
24 Correct 3 ms 30768 KB Output is correct
25 Correct 3 ms 30768 KB Output is correct
26 Correct 3 ms 30768 KB Output is correct
27 Correct 7 ms 30768 KB Output is correct
28 Correct 7 ms 30768 KB Output is correct
29 Correct 9 ms 30768 KB Output is correct
30 Correct 10 ms 30768 KB Output is correct
31 Correct 8 ms 30768 KB Output is correct
32 Correct 8 ms 30768 KB Output is correct
33 Correct 10 ms 30768 KB Output is correct
34 Correct 7 ms 30768 KB Output is correct
35 Correct 10 ms 30768 KB Output is correct
36 Correct 13 ms 30768 KB Output is correct
37 Correct 2 ms 30768 KB Output is correct
38 Correct 514 ms 88972 KB Output is correct
39 Correct 2 ms 88972 KB Output is correct
40 Correct 55 ms 88972 KB Output is correct
41 Correct 2 ms 88972 KB Output is correct
42 Correct 3 ms 88972 KB Output is correct
43 Correct 407 ms 95764 KB Output is correct
44 Correct 12 ms 95764 KB Output is correct
45 Correct 380 ms 102256 KB Output is correct
46 Correct 344 ms 108180 KB Output is correct
47 Correct 426 ms 114332 KB Output is correct
48 Correct 365 ms 120552 KB Output is correct
49 Correct 491 ms 126532 KB Output is correct
50 Runtime error 389 ms 132096 KB Memory limit exceeded: We have a known bug that the memory usage is measured incorrectly (possibly because of Meltdown/Spectre patch), so your solution may be correct. Please submit again. Sorry for the inconvenience.
51 Runtime error 383 ms 132096 KB Memory limit exceeded: We have a known bug that the memory usage is measured incorrectly (possibly because of Meltdown/Spectre patch), so your solution may be correct. Please submit again. Sorry for the inconvenience.
52 Runtime error 365 ms 132096 KB Memory limit exceeded: We have a known bug that the memory usage is measured incorrectly (possibly because of Meltdown/Spectre patch), so your solution may be correct. Please submit again. Sorry for the inconvenience.
53 Runtime error 395 ms 132096 KB Memory limit exceeded: We have a known bug that the memory usage is measured incorrectly (possibly because of Meltdown/Spectre patch), so your solution may be correct. Please submit again. Sorry for the inconvenience.
54 Runtime error 289 ms 132096 KB Memory limit exceeded: We have a known bug that the memory usage is measured incorrectly (possibly because of Meltdown/Spectre patch), so your solution may be correct. Please submit again. Sorry for the inconvenience.
55 Runtime error 273 ms 132096 KB Memory limit exceeded: We have a known bug that the memory usage is measured incorrectly (possibly because of Meltdown/Spectre patch), so your solution may be correct. Please submit again. Sorry for the inconvenience.
56 Runtime error 514 ms 132096 KB Memory limit exceeded: We have a known bug that the memory usage is measured incorrectly (possibly because of Meltdown/Spectre patch), so your solution may be correct. Please submit again. Sorry for the inconvenience.
57 Runtime error 289 ms 132096 KB Memory limit exceeded: We have a known bug that the memory usage is measured incorrectly (possibly because of Meltdown/Spectre patch), so your solution may be correct. Please submit again. Sorry for the inconvenience.
58 Runtime error 284 ms 132096 KB Memory limit exceeded: We have a known bug that the memory usage is measured incorrectly (possibly because of Meltdown/Spectre patch), so your solution may be correct. Please submit again. Sorry for the inconvenience.
59 Runtime error 279 ms 132096 KB Memory limit exceeded: We have a known bug that the memory usage is measured incorrectly (possibly because of Meltdown/Spectre patch), so your solution may be correct. Please submit again. Sorry for the inconvenience.
60 Runtime error 352 ms 132096 KB Memory limit exceeded: We have a known bug that the memory usage is measured incorrectly (possibly because of Meltdown/Spectre patch), so your solution may be correct. Please submit again. Sorry for the inconvenience.
61 Runtime error 496 ms 132096 KB Memory limit exceeded: We have a known bug that the memory usage is measured incorrectly (possibly because of Meltdown/Spectre patch), so your solution may be correct. Please submit again. Sorry for the inconvenience.
62 Runtime error 507 ms 132096 KB Memory limit exceeded: We have a known bug that the memory usage is measured incorrectly (possibly because of Meltdown/Spectre patch), so your solution may be correct. Please submit again. Sorry for the inconvenience.
63 Runtime error 503 ms 132096 KB Memory limit exceeded: We have a known bug that the memory usage is measured incorrectly (possibly because of Meltdown/Spectre patch), so your solution may be correct. Please submit again. Sorry for the inconvenience.
64 Runtime error 272 ms 132096 KB Memory limit exceeded: We have a known bug that the memory usage is measured incorrectly (possibly because of Meltdown/Spectre patch), so your solution may be correct. Please submit again. Sorry for the inconvenience.
65 Runtime error 369 ms 132096 KB Memory limit exceeded: We have a known bug that the memory usage is measured incorrectly (possibly because of Meltdown/Spectre patch), so your solution may be correct. Please submit again. Sorry for the inconvenience.
66 Runtime error 367 ms 132096 KB Memory limit exceeded: We have a known bug that the memory usage is measured incorrectly (possibly because of Meltdown/Spectre patch), so your solution may be correct. Please submit again. Sorry for the inconvenience.
67 Runtime error 405 ms 132096 KB Memory limit exceeded: We have a known bug that the memory usage is measured incorrectly (possibly because of Meltdown/Spectre patch), so your solution may be correct. Please submit again. Sorry for the inconvenience.
68 Runtime error 400 ms 132096 KB Memory limit exceeded: We have a known bug that the memory usage is measured incorrectly (possibly because of Meltdown/Spectre patch), so your solution may be correct. Please submit again. Sorry for the inconvenience.
69 Runtime error 288 ms 132096 KB Memory limit exceeded: We have a known bug that the memory usage is measured incorrectly (possibly because of Meltdown/Spectre patch), so your solution may be correct. Please submit again. Sorry for the inconvenience.
70 Runtime error 154 ms 132096 KB Memory limit exceeded: We have a known bug that the memory usage is measured incorrectly (possibly because of Meltdown/Spectre patch), so your solution may be correct. Please submit again. Sorry for the inconvenience.
71 Runtime error 266 ms 132096 KB Memory limit exceeded: We have a known bug that the memory usage is measured incorrectly (possibly because of Meltdown/Spectre patch), so your solution may be correct. Please submit again. Sorry for the inconvenience.
72 Runtime error 272 ms 132096 KB Memory limit exceeded: We have a known bug that the memory usage is measured incorrectly (possibly because of Meltdown/Spectre patch), so your solution may be correct. Please submit again. Sorry for the inconvenience.
73 Runtime error 283 ms 132096 KB Memory limit exceeded: We have a known bug that the memory usage is measured incorrectly (possibly because of Meltdown/Spectre patch), so your solution may be correct. Please submit again. Sorry for the inconvenience.
74 Runtime error 279 ms 132096 KB Memory limit exceeded: We have a known bug that the memory usage is measured incorrectly (possibly because of Meltdown/Spectre patch), so your solution may be correct. Please submit again. Sorry for the inconvenience.
75 Runtime error 312 ms 132096 KB Memory limit exceeded: We have a known bug that the memory usage is measured incorrectly (possibly because of Meltdown/Spectre patch), so your solution may be correct. Please submit again. Sorry for the inconvenience.
76 Runtime error 297 ms 132096 KB Memory limit exceeded: We have a known bug that the memory usage is measured incorrectly (possibly because of Meltdown/Spectre patch), so your solution may be correct. Please submit again. Sorry for the inconvenience.
77 Runtime error 289 ms 132096 KB Memory limit exceeded: We have a known bug that the memory usage is measured incorrectly (possibly because of Meltdown/Spectre patch), so your solution may be correct. Please submit again. Sorry for the inconvenience.
78 Runtime error 288 ms 132096 KB Memory limit exceeded: We have a known bug that the memory usage is measured incorrectly (possibly because of Meltdown/Spectre patch), so your solution may be correct. Please submit again. Sorry for the inconvenience.
79 Runtime error 200 ms 132096 KB Memory limit exceeded: We have a known bug that the memory usage is measured incorrectly (possibly because of Meltdown/Spectre patch), so your solution may be correct. Please submit again. Sorry for the inconvenience.
80 Runtime error 190 ms 132096 KB Memory limit exceeded: We have a known bug that the memory usage is measured incorrectly (possibly because of Meltdown/Spectre patch), so your solution may be correct. Please submit again. Sorry for the inconvenience.
81 Runtime error 204 ms 132096 KB Memory limit exceeded: We have a known bug that the memory usage is measured incorrectly (possibly because of Meltdown/Spectre patch), so your solution may be correct. Please submit again. Sorry for the inconvenience.
82 Runtime error 291 ms 132096 KB Memory limit exceeded: We have a known bug that the memory usage is measured incorrectly (possibly because of Meltdown/Spectre patch), so your solution may be correct. Please submit again. Sorry for the inconvenience.
83 Runtime error 303 ms 132096 KB Memory limit exceeded: We have a known bug that the memory usage is measured incorrectly (possibly because of Meltdown/Spectre patch), so your solution may be correct. Please submit again. Sorry for the inconvenience.
84 Runtime error 212 ms 132096 KB Memory limit exceeded: We have a known bug that the memory usage is measured incorrectly (possibly because of Meltdown/Spectre patch), so your solution may be correct. Please submit again. Sorry for the inconvenience.
85 Runtime error 283 ms 132096 KB Memory limit exceeded: We have a known bug that the memory usage is measured incorrectly (possibly because of Meltdown/Spectre patch), so your solution may be correct. Please submit again. Sorry for the inconvenience.
86 Runtime error 463 ms 132096 KB Memory limit exceeded: We have a known bug that the memory usage is measured incorrectly (possibly because of Meltdown/Spectre patch), so your solution may be correct. Please submit again. Sorry for the inconvenience.
87 Runtime error 272 ms 132096 KB Memory limit exceeded: We have a known bug that the memory usage is measured incorrectly (possibly because of Meltdown/Spectre patch), so your solution may be correct. Please submit again. Sorry for the inconvenience.
88 Runtime error 304 ms 132096 KB Memory limit exceeded: We have a known bug that the memory usage is measured incorrectly (possibly because of Meltdown/Spectre patch), so your solution may be correct. Please submit again. Sorry for the inconvenience.
89 Runtime error 346 ms 132096 KB Memory limit exceeded: We have a known bug that the memory usage is measured incorrectly (possibly because of Meltdown/Spectre patch), so your solution may be correct. Please submit again. Sorry for the inconvenience.
90 Runtime error 167 ms 132096 KB Memory limit exceeded: We have a known bug that the memory usage is measured incorrectly (possibly because of Meltdown/Spectre patch), so your solution may be correct. Please submit again. Sorry for the inconvenience.
91 Runtime error 322 ms 132096 KB Memory limit exceeded: We have a known bug that the memory usage is measured incorrectly (possibly because of Meltdown/Spectre patch), so your solution may be correct. Please submit again. Sorry for the inconvenience.
92 Runtime error 350 ms 132096 KB Memory limit exceeded: We have a known bug that the memory usage is measured incorrectly (possibly because of Meltdown/Spectre patch), so your solution may be correct. Please submit again. Sorry for the inconvenience.
93 Runtime error 506 ms 132096 KB Memory limit exceeded: We have a known bug that the memory usage is measured incorrectly (possibly because of Meltdown/Spectre patch), so your solution may be correct. Please submit again. Sorry for the inconvenience.
94 Runtime error 357 ms 132096 KB Memory limit exceeded: We have a known bug that the memory usage is measured incorrectly (possibly because of Meltdown/Spectre patch), so your solution may be correct. Please submit again. Sorry for the inconvenience.
95 Runtime error 300 ms 132096 KB Memory limit exceeded: We have a known bug that the memory usage is measured incorrectly (possibly because of Meltdown/Spectre patch), so your solution may be correct. Please submit again. Sorry for the inconvenience.
96 Runtime error 296 ms 132096 KB Memory limit exceeded: We have a known bug that the memory usage is measured incorrectly (possibly because of Meltdown/Spectre patch), so your solution may be correct. Please submit again. Sorry for the inconvenience.
97 Runtime error 485 ms 132096 KB Memory limit exceeded: We have a known bug that the memory usage is measured incorrectly (possibly because of Meltdown/Spectre patch), so your solution may be correct. Please submit again. Sorry for the inconvenience.
98 Runtime error 294 ms 132096 KB Memory limit exceeded: We have a known bug that the memory usage is measured incorrectly (possibly because of Meltdown/Spectre patch), so your solution may be correct. Please submit again. Sorry for the inconvenience.
99 Runtime error 343 ms 132096 KB Memory limit exceeded: We have a known bug that the memory usage is measured incorrectly (possibly because of Meltdown/Spectre patch), so your solution may be correct. Please submit again. Sorry for the inconvenience.
100 Runtime error 461 ms 132096 KB Memory limit exceeded: We have a known bug that the memory usage is measured incorrectly (possibly because of Meltdown/Spectre patch), so your solution may be correct. Please submit again. Sorry for the inconvenience.