Submission #250049

#	Time	Username	Problem	Language	Result	Execution time	Memory
250049		DavidDamian	Rectangles (IOI19_rect)	C++14	37 / 100	5067 ms	28412 KiB

rect

//#include "rect.h"
#include<bits/stdc++.h>
using namespace std;
typedef long long ll;
bool check(vector<vector<int> >& board,int a,int b,int c,int d)
{
    //cout<<a<<" "<<b<<" "<<c<<" "<<d<<endl;
    for(int i=a;i<=b;i++){
        for(int j=c;j<=d;j++){
            //cout<<i<<" "<<j<<board[i][j]<<endl;
            if(board[i][c-1]<=board[i][j])
                return false;
            if(board[i][d+1]<=board[i][j])
                return false;
            if(board[a-1][j]<=board[i][j])
                return false;
            if(board[b+1][j]<=board[i][j])
                return false;
        }
    }
    return true;
}
ll count_rectangles(vector<vector<int> > a) {
	int n=a.size();
	int m=a[0].size();
	ll total=0;
	for(int i=1;i<n-1;i++){
        for(int j=1;j<m-1;j++){
            for(int i2=i;i2<n-1;i2++){
                for(int j2=j;j2<m-1;j2++){
                    if(check(a,i,i2,j,j2)) total++;//cout<<i<<" "<<i2<<" "<<j<<" "<<j2<<endl;
                }
            }
        }
	}
	return total;
}

• Subtask 1: 8 / 8
• Subtask 2: 7 / 7
• Subtask 3: 12 / 12
• Subtask 4: 0 / 22
• Subtask 5: 10 / 10
• Subtask 6: 0 / 13
• Subtask 7: 0 / 28