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Submission #1011008

# Submission time Handle Problem Language Result Execution time Memory
1011008 2024-06-29T16:53:14 Z LucaIlie Bomb (IZhO17_bomb) C++17
41 / 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 = 1; c <= m; c++ ) {
                if ( hup[c] == 0 )
                    hdown[c] = 0;
            }
            for ( int c = m; c >= 1; c-- ) {
                if ( !dq.empty() && dq.front() >= c + w )
                    dq.pop_front();
                if ( c >= w ) {
                    while ( !dq.empty() && hdown[c] + hup[c] >= hdown[dq.back()] + hup[dq.back()] )
                        dq.pop_back();
                    dq.push_back( c );
                }
                if ( !dq.empty() )
                    maxHeight[c] = hdown[dq.front()] + hup[dq.front()];
                else
                    maxHeight[c] = 0;
            }

            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
41.0 / 100.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 604 KB Output is correct
3 Correct 13 ms 30528 KB Output is correct
4 Correct 10 ms 30432 KB Output is correct
5 Correct 128 ms 496 KB Output is correct
6 Correct 19 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 1 ms 604 KB Output is correct
9 Correct 1 ms 600 KB Output is correct
10 Correct 0 ms 612 KB Output is correct
11 Correct 1 ms 704 KB Output is correct
12 Correct 0 ms 608 KB Output is correct
13 Correct 0 ms 604 KB Output is correct
14 Correct 1 ms 604 KB Output is correct
15 Correct 1 ms 600 KB Output is correct
16 Correct 0 ms 604 KB Output is correct
17 Correct 4 ms 1116 KB Output is correct
18 Correct 4 ms 1372 KB Output is correct
19 Correct 6 ms 1688 KB Output is correct
20 Correct 7 ms 1664 KB Output is correct
21 Correct 5 ms 1112 KB Output is correct
22 Correct 7 ms 1372 KB Output is correct
23 Correct 11 ms 1796 KB Output is correct
24 Correct 6 ms 1512 KB Output is correct
25 Correct 11 ms 1632 KB Output is correct
26 Correct 13 ms 1792 KB Output is correct
27 Correct 258 ms 5004 KB Output is correct
28 Correct 401 ms 5208 KB Output is correct
29 Correct 431 ms 6488 KB Output is correct
30 Correct 781 ms 8280 KB Output is correct
31 Correct 648 ms 6236 KB Output is correct
32 Correct 618 ms 7324 KB Output is correct
33 Correct 890 ms 8444 KB Output is correct
34 Correct 210 ms 5972 KB Output is correct
35 Correct 906 ms 8284 KB Output is correct
36 Correct 998 ms 8284 KB Output is correct
37 Correct 0 ms 604 KB Output is correct
38 Execution timed out 1092 ms 79796 KB Time limit exceeded
39 Correct 1 ms 600 KB Output is correct
40 Execution timed out 1052 ms 20556 KB Time limit exceeded
41 Correct 1 ms 600 KB Output is correct
42 Correct 13 ms 1796 KB Output is correct
43 Execution timed out 1057 ms 79956 KB Time limit exceeded
44 Correct 971 ms 8436 KB Output is correct
45 Execution timed out 1055 ms 79756 KB Time limit exceeded
46 Execution timed out 1061 ms 79952 KB Time limit exceeded
47 Execution timed out 1010 ms 79952 KB Time limit exceeded
48 Execution timed out 1101 ms 79952 KB Time limit exceeded
49 Execution timed out 1062 ms 79956 KB Time limit exceeded
50 Execution timed out 1037 ms 79952 KB Time limit exceeded
51 Execution timed out 1028 ms 79960 KB Time limit exceeded
52 Execution timed out 1105 ms 79952 KB Time limit exceeded
53 Execution timed out 1066 ms 79868 KB Time limit exceeded
54 Execution timed out 1052 ms 79916 KB Time limit exceeded
55 Execution timed out 1053 ms 79956 KB Time limit exceeded
56 Execution timed out 1054 ms 79892 KB Time limit exceeded
57 Execution timed out 1048 ms 80212 KB Time limit exceeded
58 Execution timed out 1054 ms 79956 KB Time limit exceeded
59 Execution timed out 1050 ms 80020 KB Time limit exceeded
60 Execution timed out 1088 ms 79832 KB Time limit exceeded
61 Execution timed out 1018 ms 79908 KB Time limit exceeded
62 Execution timed out 1064 ms 79972 KB Time limit exceeded
63 Execution timed out 1074 ms 79808 KB Time limit exceeded
64 Execution timed out 1070 ms 79956 KB Time limit exceeded
65 Execution timed out 1037 ms 79952 KB Time limit exceeded
66 Execution timed out 1074 ms 79956 KB Time limit exceeded
67 Execution timed out 1024 ms 79952 KB Time limit exceeded
68 Execution timed out 1044 ms 80076 KB Time limit exceeded
69 Execution timed out 1046 ms 79832 KB Time limit exceeded
70 Execution timed out 1036 ms 63096 KB Time limit exceeded
71 Execution timed out 1062 ms 79952 KB Time limit exceeded
72 Execution timed out 1042 ms 79800 KB Time limit exceeded
73 Execution timed out 1040 ms 79792 KB Time limit exceeded
74 Execution timed out 1100 ms 79952 KB Time limit exceeded
75 Execution timed out 1022 ms 79992 KB Time limit exceeded
76 Execution timed out 1022 ms 79956 KB Time limit exceeded
77 Execution timed out 1018 ms 79952 KB Time limit exceeded
78 Execution timed out 1044 ms 80048 KB Time limit exceeded
79 Execution timed out 1022 ms 79956 KB Time limit exceeded
80 Execution timed out 1065 ms 79956 KB Time limit exceeded
81 Execution timed out 1074 ms 79956 KB Time limit exceeded
82 Execution timed out 1054 ms 79972 KB Time limit exceeded
83 Execution timed out 1067 ms 79960 KB Time limit exceeded
84 Execution timed out 1055 ms 79956 KB Time limit exceeded
85 Execution timed out 1073 ms 79988 KB Time limit exceeded
86 Execution timed out 1056 ms 79956 KB Time limit exceeded
87 Execution timed out 1034 ms 79952 KB Time limit exceeded
88 Execution timed out 1066 ms 79960 KB Time limit exceeded
89 Execution timed out 1071 ms 79836 KB Time limit exceeded
90 Execution timed out 1071 ms 63124 KB Time limit exceeded
91 Execution timed out 1038 ms 79952 KB Time limit exceeded
92 Execution timed out 1058 ms 79956 KB Time limit exceeded
93 Execution timed out 1065 ms 79960 KB Time limit exceeded
94 Execution timed out 1074 ms 79956 KB Time limit exceeded
95 Execution timed out 1077 ms 79960 KB Time limit exceeded
96 Execution timed out 1046 ms 79952 KB Time limit exceeded
97 Execution timed out 1031 ms 79952 KB Time limit exceeded
98 Execution timed out 1080 ms 79956 KB Time limit exceeded
99 Execution timed out 1071 ms 79956 KB Time limit exceeded
100 Execution timed out 1049 ms 79804 KB Time limit exceeded