Submission #1095441

#	Time	Username	Problem	Language	Result	Execution time	Memory
1095441		rahidilbayramli	Maxcomp (info1cup18_maxcomp)	C++17	0 / 100	1 ms	604 KiB

maxcomp

#pragma GCC optimize("-O3")
#include<bits/stdc++.h>
#include<ext/pb_ds/assoc_container.hpp>
#include<ext/pb_ds/tree_policy.hpp>
#define ll long long
#define ld long double
#define vl vector<ll>
#define vi vector<int>
#define all(v) v.begin(), v.end()
#define rall(v) v.rbegin(), v.rend()
#define pb push_back
#define p_b pop_back
#define pii pair<int, int>
#define pll pair<ll, ll>
#define f first
#define s second
using namespace std;
using namespace __gnu_pbds;
typedef tree<ll, null_type, less_equal<ll>, rb_tree_tag, tree_order_statistics_node_update> ordered_set;
mt19937_64 rng(chrono::steady_clock::now().time_since_epoch().count());
//random_device rd;
//mt19937 gen(rd());
//uniform_int_distribution<> d(0, 1e9);
void solve()
{
    ll n, m, i, j;
    cin >> n >> m;
    ll a[n+5][m+5];
    for(i = 1; i <= n; i++)
    {
        for(j = 1; j <= m; j++)
            cin >> a[i][j];
    }
    for(i = 1; i <= n; i++)
        reverse(a[i]+1, a[i]+m+1);
    ll minn[n+5][m+5], maxx[n+5][m+5];
    for(i = 0; i <= n; i++)
    {
        for(j = 0; j <= m; j++)
        {
            minn[i][j] = LLONG_MAX;
            maxx[i][j] = LLONG_MIN;
        }
    }
    ll res = -1;
    for(i = 1; i <= n; i++)
    {
        for(j = 1; j <= m; j++)
        {
            minn[i][j] = min(minn[i-1][j], minn[i][j-1]);
            maxx[i][j] = max(maxx[i-1][j], maxx[i][j-1]);
            minn[i][j] = min(minn[i][j], a[i][j] - i - j);
            maxx[i][j] = max(maxx[i][j], a[i][j] + i + j);
            res = max(res, maxx[i][j] - a[i][j] - i - j);
            res = max(res, a[i][j] - i - j - minn[i][j]);
        }
    }
    cout << res << "\n";
}
int main()
{
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    cout.tie(0);
    ll tests = 1;
    //cin >> tests;
    while(tests--)
    {
        solve();
    }
}

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