Submission #660247

#	Time	Username	Problem	Language	Result	Execution time	Memory
660247		berr	Zemljište (COCI22_zemljiste)	C++17	30 / 70	2045 ms	8648 KiB

Main

#include <bits/stdc++.h>
using namespace std;
#define int long long
int val[505][505], pr[505][505], pc[505][505];


int calc(int x, int y, int depth, int length)
{

    return pc[x+length-1][y+depth-1]-pc[x-1][y+depth-1]-pc[x+length-1][y-1]+pc[x-1][y-1];

}
int32_t main()
{
    ios_base::sync_with_stdio(false);
    cin.tie(0);
    

    int n, m, a, b; cin>>n>>m>>a>>b;

    int ans=2e18;


    for(int i=1; i<=n; i++)
    {
        for(int j=1; j<=m; j++)
        {
            cin>>val[i][j];
        }
    }

    for(int i=1; i<=n; i++)
    {
        for(int j=1; j<=m; j++)
        {
            pr[i][j]=pr[i][j-1]+val[i][j];
        }
    }

    for(int j=1; j<=m; j++)
    {
        for(int i=1; i<=n; i++)
        {
            pc[i][j]+=pc[i-1][j]+pr[i][j];
        }
    }
    for(int i=1; i<=n; i++)
    {
        for(int l=1; l<=m; l++)
        {
            for(int length=1; length+l-1<=m; length++)
            {
                int s=0;
                for(int j=8; j>=0; j--)
                {
                    int tmp=s+(1<<j);
                    if(tmp+i-1>n) continue;
                    if(calc(i, l, length, tmp)<=b) s=tmp;    
                }

                int d=calc(i, l, length, s);
                ans=min(ans, abs(b-d)+abs(a-d));
                s=n-i+1;
                for(int j=8; j>=0; j--)
                {
                    int tmp=s-(1<<j);
                    if(tmp<1) continue;
                    if(calc(i, l, length, tmp)>=a) s=tmp;
                }
                d=calc(i, l, length, s);
                ans=min(ans, abs(b-d)+abs(a-d));
            }

        }    
    }
    cout<<ans;
}

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