Submission #497079

#	Time	Username	Problem	Language	Result	Execution time	Memory
497079		kingline	Maxcomp (info1cup18_maxcomp)	C++17	60 / 100	1046 ms	35072 KiB

maxcomp

/*#pragma GCC optimize("O3")
#pragma GCC target ("avx2")
#pragma GCC optimize("Ofast")
#pragma GCC target("sse,sse2,sse3,ssse3,sse4,popcnt,abm,mmx,avx,tune=native")
#pragma GCC optimize("unroll-loops")*/
#include <bits/stdc++.h>
#pragma GCC optimize ("unroll-loops,Ofast,O3")
#pragma GCC target("avx,avx2,fma")
//#define file(data) freopen(data".in", "r", stdin); freopen(data".out", "w", stdout);
#define pb push_back
//#define ios ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0);
#define all(data) data.begin() , data.end()
#define endl '\n'
//freopen("nenokku_easy.in", "r", stdin);
//freopen("nenokku_easy.out", "w", stdout);
#define int long long
#define pii pair < int, int >
#define pll pair < long long, long long >

using namespace std;

const int N = 1e3 + 5;
const int lg = 21;

int n, m, c[N][N];

main() {
    //file("pieaters");
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    cout.tie(0);
    cin >> n >> m;
    vector < pair < int, pii > > v;
    for(int i = 1; i <= n; i++) {
        for(int j = 1; j <= m; j++) {
            cin >> c[i][j];
            v.pb({c[i][j], {i, j}});
        }
    }
    sort(all(v));
    reverse(all(v));
    int ans = -1;
    for(int i = 0; i < v.size(); i++) {
        for(int j = i + 1; j < v.size(); 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:27:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
   27 | main() {
      | ^~~~
maxcomp.cpp: In function 'int main()':
maxcomp.cpp:43:22: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<std::pair<long long int, std::pair<long long int, long long int> > >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   43 |     for(int i = 0; i < v.size(); i++) {
      |                    ~~^~~~~~~~~~
maxcomp.cpp:44:30: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<std::pair<long long int, std::pair<long long int, long long int> > >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   44 |         for(int j = i + 1; j < v.size(); j++) {
      |                            ~~^~~~~~~~~~

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