oj.uz

Submission #886296

# Submission time Handle Problem Language Result Execution time Memory
886296 2023-12-11T19:03:17 Z boris_mihov Bomb (IZhO17_bomb) C++17
24 / 100
 64 ms 111260 KB 
#include <algorithm>
#include <iostream>
#include <numeric>
#include <cassert>
#include <bitset>
#include <vector>

typedef long long llong;
const int MAXN = 2500 + 10;

int n, m;
int l[MAXN][MAXN];
int r[MAXN][MAXN];
int u[MAXN][MAXN];
int d[MAXN][MAXN];
char s[MAXN][MAXN];

void solve()
{
    for (int i = 1 ; i <= n ; ++i)
    {
        for (int j = 1 ; j <= m ; ++j)
        {
            if (s[i][j] == '0')
            {
                l[i][j] = u[i][j] = 0;
            } else
            {
                l[i][j] = l[i][j - 1] + 1;
                u[i][j] = u[i - 1][j] + 1;
            }
        }
    }

    for (int i = n ; i >= 1 ; --i)
    {
        for (int j = m ; j >= 1 ; --j)
        {
            if (s[i][j] == '0')
            {
                r[i][j] = d[i][j] = 0;
            } else
            {
                r[i][j] = r[i][j + 1] + 1;
                d[i][j] = d[i + 1][j] + 1;
            }
        }
    }

    int maxLR = m, maxUD = n;
    for (int i = 1 ; i <= n ; ++i)
    {   
        for (int j = 1 ; j <= m ; ++j)
        {
            if (s[i][j] == '0') continue;
            maxLR = std::min(maxLR, l[i][j] + r[i][j] - 1);
            maxUD = std::min(maxUD, u[i][j] + d[i][j] - 1);
        }
    }

    std::cout << maxLR * maxUD << '\n';
}

void input()
{
    std::cin >> n >> m;
    for (int i = 1 ; i <= n ; ++i)
    {
        std::cin >> s[i] + 1;
    }
}

void fastIOI()
{
    std::ios_base :: sync_with_stdio(0);
    std::cout.tie(nullptr);
    std::cin.tie(nullptr);
}

int main()
{
    fastIOI();
    input();
    solve();

    return 0;
}

Compilation message

bomb.cpp: In function 'void input()':
bomb.cpp:69:26: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   69 |         std::cin >> s[i] + 1;
      |                     ~~~~~^~~

Subtask #1
24.0 / 100.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 8652 KB Output is correct
2 Correct 2 ms 10844 KB Output is correct
3 Correct 22 ms 74844 KB Output is correct
4 Correct 15 ms 74844 KB Output is correct
5 Correct 1 ms 600 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 1 ms 344 KB Output is correct
8 Incorrect 2 ms 12892 KB Output isn't correct
9 Incorrect 2 ms 12892 KB Output isn't correct
10 Incorrect 2 ms 12636 KB Output isn't correct
11 Incorrect 2 ms 12892 KB Output isn't correct
12 Incorrect 1 ms 10844 KB Output isn't correct
13 Correct 2 ms 12632 KB Output is correct
14 Correct 2 ms 10844 KB Output is correct
15 Incorrect 2 ms 12904 KB Output isn't correct
16 Correct 1 ms 6748 KB Output is correct
17 Correct 2 ms 14940 KB Output is correct
18 Incorrect 2 ms 12892 KB Output isn't correct
19 Incorrect 2 ms 13404 KB Output isn't correct
20 Incorrect 2 ms 13404 KB Output isn't correct
21 Incorrect 2 ms 17000 KB Output isn't correct
22 Incorrect 2 ms 19036 KB Output isn't correct
23 Incorrect 2 ms 13404 KB Output isn't correct
24 Incorrect 2 ms 13148 KB Output isn't correct
25 Incorrect 2 ms 13404 KB Output isn't correct
26 Correct 2 ms 8028 KB Output is correct
27 Correct 4 ms 14168 KB Output is correct
28 Incorrect 3 ms 23388 KB Output isn't correct
29 Incorrect 4 ms 25180 KB Output isn't correct
30 Incorrect 5 ms 28796 KB Output isn't correct
31 Incorrect 4 ms 22636 KB Output isn't correct
32 Incorrect 4 ms 22364 KB Output isn't correct
33 Incorrect 5 ms 30812 KB Output isn't correct
34 Incorrect 4 ms 27228 KB Output isn't correct
35 Incorrect 5 ms 30812 KB Output isn't correct
36 Correct 6 ms 22364 KB Output is correct
37 Incorrect 3 ms 16732 KB Output isn't correct
38 Correct 64 ms 110952 KB Output is correct
39 Incorrect 2 ms 16988 KB Output isn't correct
40 Incorrect 14 ms 38592 KB Output isn't correct
41 Incorrect 2 ms 16732 KB Output isn't correct
42 Incorrect 2 ms 16988 KB Output isn't correct
43 Correct 50 ms 111188 KB Output is correct
44 Incorrect 6 ms 32840 KB Output isn't correct
45 Incorrect 49 ms 111184 KB Output isn't correct
46 Correct 53 ms 110936 KB Output is correct
47 Incorrect 51 ms 111188 KB Output isn't correct
48 Incorrect 49 ms 111240 KB Output isn't correct
49 Correct 58 ms 111000 KB Output is correct
50 Incorrect 49 ms 111256 KB Output isn't correct
51 Incorrect 49 ms 111164 KB Output isn't correct
52 Incorrect 49 ms 111208 KB Output isn't correct
53 Incorrect 47 ms 111208 KB Output isn't correct
54 Incorrect 42 ms 111188 KB Output isn't correct
55 Incorrect 43 ms 111172 KB Output isn't correct
56 Correct 53 ms 110944 KB Output is correct
57 Incorrect 41 ms 111224 KB Output isn't correct
58 Incorrect 41 ms 111184 KB Output isn't correct
59 Incorrect 40 ms 111260 KB Output isn't correct
60 Correct 48 ms 110932 KB Output is correct
61 Correct 58 ms 110928 KB Output is correct
62 Correct 58 ms 110932 KB Output is correct
63 Correct 57 ms 110912 KB Output is correct
64 Correct 42 ms 110932 KB Output is correct
65 Incorrect 47 ms 111188 KB Output isn't correct
66 Incorrect 48 ms 111184 KB Output isn't correct
67 Incorrect 49 ms 111196 KB Output isn't correct
68 Incorrect 56 ms 111088 KB Output isn't correct
69 Incorrect 42 ms 111192 KB Output isn't correct
70 Incorrect 27 ms 95040 KB Output isn't correct
71 Incorrect 40 ms 111132 KB Output isn't correct
72 Incorrect 48 ms 110932 KB Output isn't correct
73 Incorrect 44 ms 111192 KB Output isn't correct
74 Incorrect 42 ms 110936 KB Output isn't correct
75 Incorrect 42 ms 110844 KB Output isn't correct
76 Incorrect 42 ms 110936 KB Output isn't correct
77 Incorrect 44 ms 110928 KB Output isn't correct
78 Incorrect 46 ms 110932 KB Output isn't correct
79 Incorrect 33 ms 110944 KB Output isn't correct
80 Incorrect 35 ms 111188 KB Output isn't correct
81 Incorrect 35 ms 110820 KB Output isn't correct
82 Incorrect 44 ms 111024 KB Output isn't correct
83 Incorrect 43 ms 110932 KB Output isn't correct
84 Incorrect 33 ms 110936 KB Output isn't correct
85 Incorrect 44 ms 110928 KB Output isn't correct
86 Incorrect 58 ms 110836 KB Output isn't correct
87 Incorrect 43 ms 110912 KB Output isn't correct
88 Incorrect 43 ms 110928 KB Output isn't correct
89 Incorrect 51 ms 111064 KB Output isn't correct
90 Incorrect 30 ms 92884 KB Output isn't correct
91 Incorrect 45 ms 111060 KB Output isn't correct
92 Incorrect 48 ms 110968 KB Output isn't correct
93 Incorrect 57 ms 110932 KB Output isn't correct
94 Incorrect 47 ms 110956 KB Output isn't correct
95 Incorrect 45 ms 110928 KB Output isn't correct
96 Incorrect 43 ms 110820 KB Output isn't correct
97 Incorrect 58 ms 110824 KB Output isn't correct
98 Incorrect 44 ms 110960 KB Output isn't correct
99 Incorrect 54 ms 110928 KB Output isn't correct
100 Incorrect 55 ms 111024 KB Output isn't correct