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Submission #171595

# Submission time Handle Problem Language Result Execution time Memory
171595 2019-12-29T10:31:50 Z mcdx9524 Bomb (IZhO17_bomb) C++14
9 / 100
 1000 ms 14948 KB 
#include <bits/stdc++.h>

using namespace std;

typedef long long ll;

const int N = 2500 + 7;

char a[N][N];

int main() {
    ios::sync_with_stdio(0);
    cin.tie(0);
    int n, m;
    cin >> n >> m;
    if (n == 1 || m == 1) {
        vector <int> aa;
        for (int i = 0; i < n; i++) {
            for (int j = 0; j < m; j++) {
                char x;
                cin >> x;
                aa.push_back(x - '0');
            }
        }
        int cnt = 1;
        int res = 1e9;
        for (int i = 1; i < max(n, m); i++) {
            if (aa[i] != aa[i - 1]) {
                if (aa[i - 1] == 1) {
                    res = min(res, cnt);
                }
                cnt = 0;
            }
            cnt++;
        }
        if (aa[max(n, m) - 1] == 1) {
            res = min(res, cnt);
        }
        cout << res << '\n';
        return 0;
    }
    if (max(n, m) > 100) {
        //assert(0);
    }
    for (int i = 1; i <= n; i++) {
        for (int j = 1; j <= m; j++) {
            cin >> a[i][j];
        }
    }
    int ans = 0;
    for (int x = 1; x <= n; x++) {
        bool not_good = false;
        for (int y = 1; y <= m; y++) {
            char b[n + 7][m + 7];
            for (int i = 1; i <= n; i++) {
                for (int j = 1; j <= m; j++) {
                    b[i][j] = a[i][j];
                }
            }
            for (int i = 1; i <= n; i++) {
                for (int j = 1; j <= m; j++) {
                    if (i + x - 1 > n || j + y - 1 > m) {
                        continue;
                    }
                    bool bad = false;
                    for (int r = i; r <= i + x - 1; r++) {
                        for (int c = j; c <= j + y - 1; c++) {
                            if (b[r][c] == '0') {
                                bad = true;
                            }
                            if (bad) break;
                        }
                        if (bad) break;
                    }
                    if (bad) continue;
                    for (int r = i; r <= i + x - 1; r++) {
                        for (int c = j; c <= j + y - 1; c++) {
                            b[r][c] = '2';
                        }
                    }
                }
            }
            bool good = true;
            for (int i = 1; i <= n; i++) {
                for (int j = 1; j <= m; j++) {
                    if (a[i][j] == '0') {
                        continue;
                    }
                    if (a[i][j] == '1' && b[i][j] == '2') {
                        continue;
                    }
                    good = false;
                    if (!good) break;
                }
                if (!good) break;
            }
            if (good) {
                ans = max(ans, x * y);
            } else {
                not_good = true;
                break;
            }
        }
        if (not_good) {
            break;
        }
    }
    cout << ans << '\n';
    return 0;
}

Subtask #1
9.0 / 100.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 2 ms 376 KB Output is correct
3 Correct 2 ms 376 KB Output is correct
4 Correct 2 ms 376 KB Output is correct
5 Correct 2 ms 376 KB Output is correct
6 Correct 2 ms 380 KB Output is correct
7 Incorrect 2 ms 376 KB Output isn't correct
8 Incorrect 2 ms 376 KB Output isn't correct
9 Incorrect 2 ms 420 KB Output isn't correct
10 Incorrect 2 ms 376 KB Output isn't correct
11 Incorrect 2 ms 376 KB Output isn't correct
12 Correct 2 ms 376 KB Output is correct
13 Correct 2 ms 376 KB Output is correct
14 Incorrect 2 ms 376 KB Output isn't correct
15 Incorrect 2 ms 376 KB Output isn't correct
16 Incorrect 2 ms 376 KB Output isn't correct
17 Incorrect 2 ms 504 KB Output isn't correct
18 Incorrect 2 ms 504 KB Output isn't correct
19 Incorrect 3 ms 508 KB Output isn't correct
20 Incorrect 3 ms 504 KB Output isn't correct
21 Incorrect 2 ms 504 KB Output isn't correct
22 Incorrect 2 ms 508 KB Output isn't correct
23 Incorrect 4 ms 632 KB Output isn't correct
24 Incorrect 3 ms 504 KB Output isn't correct
25 Incorrect 5 ms 632 KB Output isn't correct
26 Incorrect 4 ms 632 KB Output isn't correct
27 Correct 7 ms 1272 KB Output is correct
28 Incorrect 8 ms 1144 KB Output isn't correct
29 Incorrect 376 ms 1628 KB Output isn't correct
30 Incorrect 378 ms 1784 KB Output isn't correct
31 Incorrect 201 ms 1540 KB Output isn't correct
32 Incorrect 70 ms 1784 KB Output isn't correct
33 Incorrect 582 ms 2040 KB Output isn't correct
34 Incorrect 9 ms 1400 KB Output isn't correct
35 Incorrect 187 ms 2044 KB Output isn't correct
36 Incorrect 119 ms 1928 KB Output isn't correct
37 Incorrect 2 ms 376 KB Output isn't correct
38 Execution timed out 1075 ms 14148 KB Time limit exceeded
39 Incorrect 2 ms 376 KB Output isn't correct
40 Execution timed out 1078 ms 3960 KB Time limit exceeded
41 Incorrect 2 ms 376 KB Output isn't correct
42 Incorrect 10 ms 632 KB Output isn't correct
43 Execution timed out 1092 ms 14200 KB Time limit exceeded
44 Execution timed out 1089 ms 1784 KB Time limit exceeded
45 Execution timed out 1085 ms 14192 KB Time limit exceeded
46 Execution timed out 1077 ms 14204 KB Time limit exceeded
47 Execution timed out 1079 ms 14200 KB Time limit exceeded
48 Execution timed out 1075 ms 14116 KB Time limit exceeded
49 Incorrect 367 ms 14252 KB Output isn't correct
50 Execution timed out 1064 ms 14200 KB Time limit exceeded
51 Execution timed out 1083 ms 14200 KB Time limit exceeded
52 Execution timed out 1072 ms 14200 KB Time limit exceeded
53 Execution timed out 1076 ms 14200 KB Time limit exceeded
54 Execution timed out 1072 ms 14200 KB Time limit exceeded
55 Execution timed out 1046 ms 14200 KB Time limit exceeded
56 Execution timed out 1077 ms 14072 KB Time limit exceeded
57 Execution timed out 1069 ms 14200 KB Time limit exceeded
58 Execution timed out 1051 ms 14072 KB Time limit exceeded
59 Execution timed out 1074 ms 14072 KB Time limit exceeded
60 Execution timed out 1070 ms 13848 KB Time limit exceeded
61 Execution timed out 1074 ms 13816 KB Time limit exceeded
62 Execution timed out 1086 ms 13892 KB Time limit exceeded
63 Execution timed out 1072 ms 13816 KB Time limit exceeded
64 Execution timed out 1080 ms 13816 KB Time limit exceeded
65 Execution timed out 1077 ms 13920 KB Time limit exceeded
66 Execution timed out 1068 ms 14020 KB Time limit exceeded
67 Execution timed out 1077 ms 13812 KB Time limit exceeded
68 Execution timed out 1083 ms 13944 KB Time limit exceeded
69 Execution timed out 1075 ms 13944 KB Time limit exceeded
70 Execution timed out 1076 ms 10488 KB Time limit exceeded
71 Execution timed out 1078 ms 13864 KB Time limit exceeded
72 Execution timed out 1082 ms 13944 KB Time limit exceeded
73 Execution timed out 1080 ms 13944 KB Time limit exceeded
74 Execution timed out 1082 ms 13816 KB Time limit exceeded
75 Execution timed out 1085 ms 13944 KB Time limit exceeded
76 Execution timed out 1082 ms 14072 KB Time limit exceeded
77 Execution timed out 1071 ms 14200 KB Time limit exceeded
78 Execution timed out 1071 ms 14100 KB Time limit exceeded
79 Incorrect 760 ms 14196 KB Output isn't correct
80 Incorrect 610 ms 14200 KB Output isn't correct
81 Execution timed out 1076 ms 14200 KB Time limit exceeded
82 Execution timed out 1081 ms 14072 KB Time limit exceeded
83 Execution timed out 1084 ms 14072 KB Time limit exceeded
84 Execution timed out 1078 ms 13816 KB Time limit exceeded
85 Execution timed out 1070 ms 13816 KB Time limit exceeded
86 Execution timed out 1068 ms 14172 KB Time limit exceeded
87 Execution timed out 1074 ms 14140 KB Time limit exceeded
88 Execution timed out 1052 ms 14172 KB Time limit exceeded
89 Execution timed out 1033 ms 14188 KB Time limit exceeded
90 Execution timed out 1041 ms 10960 KB Time limit exceeded
91 Execution timed out 1040 ms 14400 KB Time limit exceeded
92 Execution timed out 1066 ms 14356 KB Time limit exceeded
93 Execution timed out 1062 ms 14332 KB Time limit exceeded
94 Execution timed out 1069 ms 14364 KB Time limit exceeded
95 Execution timed out 1061 ms 14388 KB Time limit exceeded
96 Execution timed out 1070 ms 14328 KB Time limit exceeded
97 Execution timed out 1062 ms 14440 KB Time limit exceeded
98 Execution timed out 1071 ms 14712 KB Time limit exceeded
99 Execution timed out 1076 ms 14712 KB Time limit exceeded
100 Execution timed out 1066 ms 14948 KB Time limit exceeded