oj.uz

Submission #885311

# Submission time Handle Problem Language Result Execution time Memory
885311 2023-12-09T12:51:49 Z alexdd Bomb (IZhO17_bomb) C++17
43 / 100
 1000 ms 55872 KB 
#include<iostream>
using namespace std;
int n,m;
char mat[2505][2505];
int sump[2505][2505];
int mars[2505][2505];
bool verif(int cntx, int cnty)
{
    for(int i=1;i<=n;i++)
        for(int j=1;j<=m;j++)
            mars[i][j]=0;
    for(int i=1;i+cntx-1<=n;i++)
    {
        for(int j=1;j+cnty-1<=m;j++)
        {
            if(sump[i+cntx-1][j+cnty-1] - sump[i+cntx-1][j-1] - sump[i-1][j+cnty-1] + sump[i-1][j-1] == cntx*cnty)///toate is 1
            {
                mars[i][j]++;
                mars[i][j+cnty]--;
                mars[i+cntx][j]--;
                mars[i+cntx][j+cnty]++;
            }
        }
    }
    for(int i=1;i<=n;i++)
    {
        for(int j=1;j<=m;j++)
        {
            mars[i][j] += mars[i-1][j] + mars[i][j-1] - mars[i-1][j-1];
            if(mars[i][j]==0 && mat[i][j]=='1')
                return 0;
        }
    }
    return 1;
}
signed main()
{
    cin>>n>>m;
    int minx=n,miny=m;
    for(int i=1;i<=n;i++)
    {
        for(int j=1;j<=m;j++)
        {
            cin>>mat[i][j];
            sump[i][j] = sump[i-1][j] + sump[i][j-1] - sump[i-1][j-1];
            if(mat[i][j]=='1')
                sump[i][j]++;
        }
    }
    for(int i=1;i<=n;i++)
    {
        for(int j=1;j<=m;j++)
        {
            if(mat[i][j]=='1' && (j==m || mat[i][j+1]=='0'))
            {
                int cnt=0;
                for(int u=j;u>0;u--)
                {
                    if(mat[i][u]=='0')
                        break;
                    cnt++;
                }
                miny = min(miny, cnt);
            }
        }
    }
    for(int i=1;i<=m;i++)
    {
        for(int j=1;j<=n;j++)
        {
            if(mat[j][i]=='1' && (j==n || mat[j+1][i]=='0'))
            {
                int cnt=0;
                for(int u=j;u>0;u--)
                {
                    if(mat[u][i]=='0')
                        break;
                    cnt++;
                }
                minx = min(minx, cnt);
            }
        }
    }
    //minx=n;miny=m;
    int poz=0, mxm=0;
    for(int i=minx;i>0;i--)
    {
        if(i*miny <= mxm)
            break;
        while(poz+1<=miny && verif(i,poz+1))
        {
            poz++;
        }
        mxm = max(mxm, i*poz);
    }
    cout<<mxm;
    return 0;
}

Subtask #1
43.0 / 100.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2392 KB Output is correct
2 Correct 1 ms 4700 KB Output is correct
3 Correct 12 ms 40796 KB Output is correct
4 Correct 11 ms 40812 KB Output is correct
5 Correct 1 ms 2396 KB Output is correct
6 Correct 1 ms 2396 KB Output is correct
7 Correct 1 ms 2396 KB Output is correct
8 Correct 1 ms 4696 KB Output is correct
9 Correct 1 ms 4700 KB Output is correct
10 Correct 1 ms 2396 KB Output is correct
11 Correct 1 ms 4700 KB Output is correct
12 Correct 1 ms 2396 KB Output is correct
13 Correct 1 ms 2396 KB Output is correct
14 Correct 1 ms 2396 KB Output is correct
15 Correct 1 ms 2396 KB Output is correct
16 Correct 1 ms 4700 KB Output is correct
17 Correct 1 ms 4700 KB Output is correct
18 Correct 1 ms 4700 KB Output is correct
19 Correct 2 ms 4956 KB Output is correct
20 Correct 2 ms 4952 KB Output is correct
21 Correct 2 ms 4696 KB Output is correct
22 Correct 2 ms 4956 KB Output is correct
23 Correct 2 ms 4956 KB Output is correct
24 Correct 2 ms 4956 KB Output is correct
25 Correct 3 ms 4956 KB Output is correct
26 Correct 2 ms 4952 KB Output is correct
27 Correct 6 ms 10076 KB Output is correct
28 Correct 10 ms 10332 KB Output is correct
29 Correct 50 ms 10784 KB Output is correct
30 Correct 58 ms 11100 KB Output is correct
31 Correct 40 ms 10840 KB Output is correct
32 Correct 49 ms 10964 KB Output is correct
33 Correct 142 ms 13156 KB Output is correct
34 Correct 8 ms 10332 KB Output is correct
35 Correct 69 ms 13404 KB Output is correct
36 Correct 41 ms 13400 KB Output is correct
37 Correct 1 ms 4696 KB Output is correct
38 Execution timed out 1066 ms 55576 KB Time limit exceeded
39 Correct 1 ms 4700 KB Output is correct
40 Execution timed out 1079 ms 22420 KB Time limit exceeded
41 Correct 1 ms 4700 KB Output is correct
42 Correct 3 ms 4956 KB Output is correct
43 Execution timed out 1090 ms 55472 KB Time limit exceeded
44 Correct 192 ms 13404 KB Output is correct
45 Execution timed out 1006 ms 55376 KB Time limit exceeded
46 Correct 931 ms 55624 KB Output is correct
47 Execution timed out 1082 ms 55652 KB Time limit exceeded
48 Execution timed out 1093 ms 55368 KB Time limit exceeded
49 Correct 387 ms 55624 KB Output is correct
50 Execution timed out 1103 ms 55476 KB Time limit exceeded
51 Execution timed out 1090 ms 55464 KB Time limit exceeded
52 Execution timed out 1061 ms 55420 KB Time limit exceeded
53 Execution timed out 1065 ms 55640 KB Time limit exceeded
54 Execution timed out 1041 ms 55376 KB Time limit exceeded
55 Execution timed out 1059 ms 55424 KB Time limit exceeded
56 Execution timed out 1068 ms 55380 KB Time limit exceeded
57 Execution timed out 1057 ms 55416 KB Time limit exceeded
58 Execution timed out 1060 ms 55468 KB Time limit exceeded
59 Execution timed out 1038 ms 55376 KB Time limit exceeded
60 Execution timed out 1028 ms 55612 KB Time limit exceeded
61 Execution timed out 1024 ms 55624 KB Time limit exceeded
62 Execution timed out 1051 ms 55528 KB Time limit exceeded
63 Execution timed out 1051 ms 55580 KB Time limit exceeded
64 Execution timed out 1027 ms 55460 KB Time limit exceeded
65 Execution timed out 1057 ms 55380 KB Time limit exceeded
66 Execution timed out 1050 ms 55380 KB Time limit exceeded
67 Execution timed out 1045 ms 55636 KB Time limit exceeded
68 Execution timed out 1075 ms 55492 KB Time limit exceeded
69 Execution timed out 1014 ms 55568 KB Time limit exceeded
70 Execution timed out 1063 ms 47284 KB Time limit exceeded
71 Execution timed out 1062 ms 55476 KB Time limit exceeded
72 Execution timed out 1042 ms 55456 KB Time limit exceeded
73 Execution timed out 1058 ms 55380 KB Time limit exceeded
74 Execution timed out 1064 ms 55380 KB Time limit exceeded
75 Execution timed out 1057 ms 55432 KB Time limit exceeded
76 Execution timed out 1056 ms 55612 KB Time limit exceeded
77 Execution timed out 1020 ms 55620 KB Time limit exceeded
78 Execution timed out 1037 ms 55416 KB Time limit exceeded
79 Execution timed out 1064 ms 55584 KB Time limit exceeded
80 Execution timed out 1049 ms 55472 KB Time limit exceeded
81 Execution timed out 1051 ms 55872 KB Time limit exceeded
82 Execution timed out 1025 ms 55380 KB Time limit exceeded
83 Execution timed out 1053 ms 55472 KB Time limit exceeded
84 Execution timed out 1074 ms 55460 KB Time limit exceeded
85 Execution timed out 1094 ms 55668 KB Time limit exceeded
86 Execution timed out 1051 ms 55584 KB Time limit exceeded
87 Execution timed out 1063 ms 55472 KB Time limit exceeded
88 Execution timed out 1039 ms 55380 KB Time limit exceeded
89 Execution timed out 1046 ms 55380 KB Time limit exceeded
90 Execution timed out 1071 ms 47280 KB Time limit exceeded
91 Execution timed out 1059 ms 55484 KB Time limit exceeded
92 Execution timed out 1055 ms 55380 KB Time limit exceeded
93 Execution timed out 1068 ms 55380 KB Time limit exceeded
94 Execution timed out 1035 ms 55376 KB Time limit exceeded
95 Execution timed out 1045 ms 55376 KB Time limit exceeded
96 Execution timed out 1032 ms 55588 KB Time limit exceeded
97 Execution timed out 1036 ms 55584 KB Time limit exceeded
98 Execution timed out 1058 ms 55380 KB Time limit exceeded
99 Execution timed out 1063 ms 55464 KB Time limit exceeded
100 Execution timed out 1072 ms 55380 KB Time limit exceeded