Submission #169939

#	Time	Username	Problem	Language	Result	Execution time	Memory
169939		socho	Rectangles (IOI19_rect)	C++14	18 / 100	5093 ms	28408 KiB

rect

#include "rect.h"
#include "bits/stdc++.h"
#include <cstdio>
#include <unistd.h>
#include <cassert>
#include <string>
using namespace std;

long long count_rectangles(std::vector<std::vector<int> > a) {
	
	int n = a.size();
	int m = a[0].size();
	
	int count = 0;
	
	for (int i=1; i<n-1; i++) {
		for (int j=1; j<m-1; j++) {
			for (int k=i; k<n-1; k++) {
				for (int l=j; l<m-1; l++) {
					// check i,j to k,l
					bool ok = true;
					for (int x=i; x<=k; x++) {
						for (int y=j; y<=l; y++) {
							if (a[x][y] >= a[i-1][y]) ok = false;
							if (a[x][y] >= a[k+1][y]) ok = false;
							if (a[x][y] >= a[x][j-1]) ok = false;
							if (a[x][y] >= a[x][l+1]) ok = false;
						}
					}
					count += ok;
				}
			}
		}
	}
	
	return count;
	
}

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