Submission #870934

#	Time	Username	Problem	Language	Result	Execution time	Memory
870934		borisAngelov	Maxcomp (info1cup18_maxcomp)	C++17	60 / 100	1014 ms	8772 KiB

maxcomp

#include <bits/stdc++.h>
#pragma GCC optimize("O3", "unroll-loops")

using namespace std;

const int maxn = 1005;
const int inf = 2e9;

int n, m;

int a[maxn][maxn];

char s;
int num;

int read()
{
    num = 0;
    s = getchar();

    while (s < '0' || s > '9')
    {
        s = getchar();
    }

    while ('0' <= s && s <= '9')
    {
        num = num * 10 + (s - '0');
        s = getchar();
    }

    return num;
}

void fastIO()
{
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    cout.tie(0);
}

int main()
{
    fastIO();

    n = read();
    m = read();

    for (int i = 1; i <= n; ++i)
    {
        for (int j = 1; j <= m; ++j)
        {
            a[i][j] = read();
        }
    }

    int ans = -inf;

    for (int x1 = 1; x1 <= n; ++x1)
    {
        for (int y1 = 1; y1 <= m; ++y1)
        {
            for (int x2 = 1; x2 <= n; ++x2)
            {
                for (int y2 = 1; y2 <= m; ++y2)
                {
                    if (x1 != x2 || y1 != y2)
                    {
                        ans = max(ans, abs(a[x1][y1] - a[x2][y2]) - (abs(x1 - x2) + abs(y1 - y2)));
                    }
                }
            }
        }
    }

    cout << ans - 1 << endl;

    return 0;
}

• Subtask 1: 15 / 15
• Subtask 2: 15 / 15
• Subtask 3: 30 / 30
• Subtask 4: 0 / 40