Submission #704887

#	Time	Username	Problem	Language	Result	Execution time	Memory
704887		Cookie197	Zemljište (COCI22_zemljiste)	C++17	10 / 70	58 ms	1120 KiB

Main

#pragma GCC optimize("O4,unroll-loops")
#include<iostream>
#include<vector>
#include<algorithm>
#include<set>
#include<map>
using namespace std;
#define ll long long
#define pii pair<int,int>
#define endl "\n"
#define mp make_pair
#define out(x) cout << #x << " = " << x << endl

int n,m;
ll arr[505][505],pre[505][505],a,b;

signed main(){
    ios::sync_with_stdio(false); cin.tie(0); cout.tie(0);
    cin>>n>>m>>a>>b;
    for (int i=1;i<=n;i++){
        for (int j=1;j<=m;j++) cin>>arr[i][j], pre[i][j] = pre[i-1][j] + pre[i][j-1] - pre[i-1][j-1] + arr[i][j];
    }

    ll ans = 1e18;
    for (int i=1;i<=n;i++) for (int j=i;j<=n;j++){
        multiset<ll> ms; ms.insert(2e18); ms.insert(-2e18); ms.insert(0);
        ll sum = 0;
        for (int k=1;k<=m;k++) sum += pre[j][k] - pre[j][k-1] - pre[i-1][k] + pre[i-1][k-1], ms.insert(sum);
        cout<<endl;
        for (ll u:ms){
            ll x = *ms.lower_bound(u+a);
            ans = min(ans, abs((x-u) - a) + abs((x-u) - b));
            x = *(--ms.lower_bound(u+b+1));
            ans = min(ans, abs((x-u) - a) + abs((x-u) - b));
        }
    }
    cout<<ans<<endl;
}

• Subtask 1: 10 / 10
• Subtask 2: 0 / 20
• Subtask 3: 0 / 40