Submission #261317

#	Time	Username	Problem	Language	Result	Execution time	Memory
261317		SuperJava	Rectangles (IOI19_rect)	C++17	37 / 100	5063 ms	61304 KiB

rect

#include "rect.h"
#include <vector>
#define sz(a) (a.size())
using namespace std;


long long count_rectangles(vector<vector<int>> a) {
	int n = sz(a);
	int m = sz(a[0]);
	int answer = 0;
	for (int r1 = 1; r1 < n-1; ++r1){
		for (int c1 = 1; c1 < m-1; ++c1){
			for (int r2 = r1; r2 < n-1; ++r2){
				if(a[r2][c1] >= a[r2][c1-1] ||
					a[r2][c1] >= a[r1-1][c1]){
					break;
				}
				for (int c2 = c1; c2 < m-1; ++c2){
					bool good = true;
					for (int i = r1; i <= r2 && good; ++i){
						for (int j = c1; j <= c2 && good; ++j){
							if(a[i][j] >= a[i][c1-1] ||
								a[i][j] >= a[i][c2+1] ||
								a[i][j] >= a[r1-1][j] ||
								a[i][j] >= a[r2+1][j]){
								good = false;
							}
						}
					}
					if(good){
						answer++;
					}
				}
			}
		}
	}
	return answer;
}

• 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