Submission #497090

#	Time	Username	Problem	Language	Result	Execution time	Memory
497090		kingline	Maxcomp (info1cup18_maxcomp)	C++17	60 / 100	1093 ms	15872 KiB

maxcomp

#include <bits/stdc++.h>
#pragma GCC optimize ("unroll-loops,Ofast,O3")
#pragma GCC target("avx,avx2,fma")

using namespace std;

int n, m, c[1005][1005];
pair < int, pair < int, int > > v[1000005];

main() {
    //file("pieaters");
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    cout.tie(0);
    cin >> n >> m;
    int num = 1;
    for(int i = 1; i <= n; i++) {
        for(int j = 1; j <= m; j++) {
            cin >> c[i][j];
            v[num] = {c[i][j], {i, j}};
            num++;
        }
    }
    n *= m;
    sort(v + 1, v + n + 1);
    int ans = -1;
    for(int i = n; i > 1; i--) {
        for(int j = i - 1; j > 0; j--) {
            ans = max(ans, v[i].first - v[j].first - abs(v[i].second.first - v[j].second.first) - abs(v[i].second.second - v[j].second.second) - 1);
        }
    }
    cout << ans;
}

Compilation message (stderr)

maxcomp.cpp:10:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
   10 | main() {
      | ^~~~

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