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Submission #1010978

# Submission time Handle Problem Language Result Execution time Memory
1010978 2024-06-29T16:10:11 Z LucaIlie Bomb (IZhO17_bomb) C++17
21 / 100
 1000 ms 80212 KB 
#include <bits/stdc++.h>

using namespace std;

const int MAX_N = 2500;
int mat[MAX_N + 2][MAX_N + 2], up[MAX_N + 2][MAX_N + 2], down[MAX_N + 2][MAX_N + 2], hup[MAX_N + 2], hdown[MAX_N + 2], maxHeight[MAX_N + 2];

int main() {
    int n, m;

    cin >> n >> m;
    for ( int l = 1; l <= n; l++ ) {
        for ( int c = 1; c <= m; c++ ) {
            char ch;
            cin >> ch;
            mat[l][c] = ch - '0';
        }
    }

    for ( int l = 1; l <= n; l++ ) {
        for ( int c = 1; c <= m; c++ )
            up[l][c] = (mat[l][c] ? up[l - 1][c] + 1 : 0);
    }
    for ( int l = n; l >= 1; l-- ) {
        for ( int c = 1; c <= m; c++ )
            down[l][c] = (mat[l][c] ? down[l + 1][c] + 1 : 0);
    }

    int maxArea = 0;
    for ( int w = 1; w <= m; w++ ) {
        int h = n;
        for ( int l = 0; l <= n; l++ ) {
            //printf( "LINE %d:\n", l );
            deque<int> dq;
            for ( int c = 1; c <= m; c++ ) {
                if ( !dq.empty() && dq.front() <= c - w )
                    dq.pop_front();
                while ( !dq.empty() && up[l][c] <= up[l][dq.back()] )
                    dq.pop_back();
                dq.push_back( c );
                hup[c] = up[l][dq.front()];
            }
            while ( !dq.empty() )
                dq.pop_back();

            for ( int c = 1; c <= m; c++ ) {
                if ( !dq.empty() && dq.front() <= c - w )
                    dq.pop_front();
                while ( !dq.empty() && down[l + 1][c] <= down[l + 1][dq.back()] )
                    dq.pop_back();
                dq.push_back( c );
                hdown[c] = down[l + 1][dq.front()];
            }
            while ( !dq.empty() )
                dq.pop_back();

            //for ( int c = 1; c <= m; c++ )
                //printf( "%d ", hup[c] );
            //printf( "\n" );
            //for ( int c = 1; c <= m; c++ )
                //printf( "%d ", hdown[c] );
            //printf( "\n" );

            for ( int c = m; c >= 1; c-- ) {
                if ( !dq.empty() && dq.front() >= c + w )
                    dq.pop_front();
                while ( !dq.empty() && hdown[c] + hup[c] >= hdown[dq.back()] + hup[dq.back()] )
                    dq.pop_back();
                dq.push_back( c );
                maxHeight[c] = hdown[dq.front()] + hup[dq.front()];
            }

            for ( int c = 1; c <= m; c++ ) {
                if ( mat[l][c] )
                    h = min( h, maxHeight[c] );
                //printf( "%d ", mat[l][c] ? maxHeight[c] : 9 );
            }
            //printf( "\n" );
        }

        //printf( "\n\n\n\nBA AVEM W SI H!!!!!!!!!!! %d %d\n\n\n", w, h );

        maxArea = max( maxArea, w * h );
    }

    cout << maxArea;

    return 0;
}

Subtask #1
21.0 / 100.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2396 KB Output is correct
2 Correct 0 ms 604 KB Output is correct
3 Correct 12 ms 30396 KB Output is correct
4 Correct 11 ms 31580 KB Output is correct
5 Correct 132 ms 2396 KB Output is correct
6 Correct 22 ms 2396 KB Output is correct
7 Incorrect 1 ms 2648 KB Output isn't correct
8 Incorrect 1 ms 2652 KB Output isn't correct
9 Incorrect 0 ms 2652 KB Output isn't correct
10 Incorrect 1 ms 4440 KB Output isn't correct
11 Correct 1 ms 2652 KB Output is correct
12 Incorrect 0 ms 604 KB Output isn't correct
13 Correct 0 ms 604 KB Output is correct
14 Correct 0 ms 604 KB Output is correct
15 Incorrect 0 ms 600 KB Output isn't correct
16 Correct 1 ms 608 KB Output is correct
17 Correct 6 ms 1380 KB Output is correct
18 Incorrect 4 ms 3256 KB Output isn't correct
19 Incorrect 8 ms 1632 KB Output isn't correct
20 Incorrect 8 ms 3420 KB Output isn't correct
21 Incorrect 5 ms 2908 KB Output isn't correct
22 Incorrect 8 ms 3344 KB Output isn't correct
23 Correct 13 ms 1632 KB Output is correct
24 Correct 6 ms 1368 KB Output is correct
25 Incorrect 13 ms 1624 KB Output isn't correct
26 Incorrect 14 ms 1624 KB Output isn't correct
27 Incorrect 289 ms 4956 KB Output isn't correct
28 Incorrect 458 ms 7008 KB Output isn't correct
29 Incorrect 550 ms 8540 KB Output isn't correct
30 Correct 822 ms 11708 KB Output is correct
31 Correct 679 ms 10832 KB Output is correct
32 Correct 580 ms 11232 KB Output is correct
33 Incorrect 958 ms 12004 KB Output isn't correct
34 Incorrect 198 ms 10172 KB Output isn't correct
35 Incorrect 933 ms 11984 KB Output isn't correct
36 Execution timed out 1028 ms 11988 KB Time limit exceeded
37 Correct 1 ms 4440 KB Output is correct
38 Execution timed out 1056 ms 80028 KB Time limit exceeded
39 Correct 1 ms 2648 KB Output is correct
40 Execution timed out 1050 ms 20572 KB Time limit exceeded
41 Correct 1 ms 600 KB Output is correct
42 Correct 14 ms 1628 KB Output is correct
43 Execution timed out 1101 ms 79968 KB Time limit exceeded
44 Correct 993 ms 11100 KB Output is correct
45 Execution timed out 1037 ms 79984 KB Time limit exceeded
46 Execution timed out 1076 ms 79952 KB Time limit exceeded
47 Execution timed out 1051 ms 79860 KB Time limit exceeded
48 Execution timed out 1041 ms 79888 KB Time limit exceeded
49 Execution timed out 1064 ms 79956 KB Time limit exceeded
50 Execution timed out 1031 ms 79792 KB Time limit exceeded
51 Execution timed out 1068 ms 79920 KB Time limit exceeded
52 Execution timed out 1065 ms 79944 KB Time limit exceeded
53 Execution timed out 1068 ms 79956 KB Time limit exceeded
54 Execution timed out 1074 ms 79788 KB Time limit exceeded
55 Execution timed out 1022 ms 79952 KB Time limit exceeded
56 Execution timed out 1104 ms 79956 KB Time limit exceeded
57 Execution timed out 1054 ms 79956 KB Time limit exceeded
58 Execution timed out 1059 ms 79960 KB Time limit exceeded
59 Execution timed out 1039 ms 80032 KB Time limit exceeded
60 Execution timed out 1020 ms 79952 KB Time limit exceeded
61 Execution timed out 1068 ms 79904 KB Time limit exceeded
62 Execution timed out 1058 ms 79780 KB Time limit exceeded
63 Execution timed out 1034 ms 79936 KB Time limit exceeded
64 Execution timed out 1039 ms 79952 KB Time limit exceeded
65 Execution timed out 1071 ms 79956 KB Time limit exceeded
66 Execution timed out 1079 ms 80212 KB Time limit exceeded
67 Execution timed out 1041 ms 79952 KB Time limit exceeded
68 Execution timed out 1040 ms 79952 KB Time limit exceeded
69 Execution timed out 1072 ms 79956 KB Time limit exceeded
70 Execution timed out 1025 ms 64592 KB Time limit exceeded
71 Execution timed out 1062 ms 79784 KB Time limit exceeded
72 Execution timed out 1045 ms 80028 KB Time limit exceeded
73 Execution timed out 1034 ms 79784 KB Time limit exceeded
74 Execution timed out 1040 ms 79892 KB Time limit exceeded
75 Execution timed out 1066 ms 79792 KB Time limit exceeded
76 Execution timed out 1060 ms 79956 KB Time limit exceeded
77 Execution timed out 1075 ms 79960 KB Time limit exceeded
78 Execution timed out 1093 ms 79812 KB Time limit exceeded
79 Execution timed out 1029 ms 79956 KB Time limit exceeded
80 Execution timed out 1062 ms 79952 KB Time limit exceeded
81 Execution timed out 1063 ms 79956 KB Time limit exceeded
82 Execution timed out 1041 ms 79952 KB Time limit exceeded
83 Execution timed out 1035 ms 79984 KB Time limit exceeded
84 Execution timed out 1093 ms 79952 KB Time limit exceeded
85 Execution timed out 1046 ms 79916 KB Time limit exceeded
86 Execution timed out 1080 ms 79956 KB Time limit exceeded
87 Execution timed out 1006 ms 80032 KB Time limit exceeded
88 Execution timed out 1055 ms 79936 KB Time limit exceeded
89 Execution timed out 1063 ms 79952 KB Time limit exceeded
90 Execution timed out 1061 ms 64732 KB Time limit exceeded
91 Execution timed out 1060 ms 80004 KB Time limit exceeded
92 Execution timed out 1077 ms 79796 KB Time limit exceeded
93 Execution timed out 1008 ms 79888 KB Time limit exceeded
94 Execution timed out 1074 ms 79956 KB Time limit exceeded
95 Execution timed out 1054 ms 79952 KB Time limit exceeded
96 Execution timed out 1045 ms 80024 KB Time limit exceeded
97 Execution timed out 1070 ms 80004 KB Time limit exceeded
98 Execution timed out 1039 ms 79952 KB Time limit exceeded
99 Execution timed out 1071 ms 80012 KB Time limit exceeded
100 Execution timed out 1073 ms 79780 KB Time limit exceeded