Submission #298851

#	Time	Username	Problem	Language	Result	Execution time	Memory
298851		Aldas25	Rectangles (IOI19_rect)	C++14	25 / 100	5046 ms	24040 KiB

rect

#include "rect.h"
#include <bits/stdc++.h>

using namespace std;

#define FAST_IO ios_base::sync_with_stdio(0); cin.tie(nullptr)
#define FOR(i, a, b) for (int i = (a); i <= (b); i++)
#define REP(n) FOR(O, 1, (n))
#define f first
#define s second
#define pb push_back
typedef long long ll;
typedef pair<int, int> pii;
typedef vector<int> vi;
typedef vector<pii> vii;
typedef vector<ll> vl;

long long count_rectangles(std::vector<std::vector<int> > a) {
    int n = (int)a.size(), m = (int)a[0].size();

    ll ans = 0ll;
    FOR(r1, 1, n-2) FOR(c1, 1, m-2) FOR(r2, r1, n-2) FOR(c2, c1, m-2) {

        bool ok = true;
        FOR(i, r1, r2) FOR(j, c1, c2) {
            int mnH = a[i][c1-1];
            mnH = min(mnH, a[i][c2+1]);
            mnH = min(mnH, a[r1-1][j]);
            mnH = min(mnH, a[r2+1][j]);
            if(a[i][j] >= mnH) {
                ok = false;
                break;
            }
        }
        if (ok) ans++;

    }

	return ans;
}

/*

6 5
4 8 7 5 6
7 4 10 3 5
9 7 20 14 2
9 14 7 3 6
5 7 5 2 7
4 5 13 5 6
ans:
6


*/

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