Submission #362227

#	Time	Username	Problem	Language	Result	Execution time	Memory
362227		knightron0	Rectangles (IOI19_rect)	C++14	10 / 100	8 ms	384 KiB

rect

#include <bits/stdc++.h>
using namespace std;

#define pb push_back
#define fr first
#define sc second
#define clr(a, x) memset(a, x, sizeof(a))
#define dbg(x) cout<<"("<<#x<<"): "<<x<<endl;
#define printvector(arr) for (auto it = arr.begin(); it != arr.end(); ++it) cout<<*it<<" "; cout<<endl;
#define all(v) v.begin(), v.end()
#define lcm(a, b) (a * b)/__gcd(a, b)
#define printvecpairs(vec) for(auto it: vec) cout<<it.fr<<' '<<it.sc<<endl;
#define endl '\n'
#define lli long long int
#define float long double

const int MOD = 1e9 + 7;
const int MAXN = 1e5 + 5;


lli count_rectangles(vector<vector<int>> a) {
	if(a.size() < 3){
		return 0LL;
	}
	lli n = a[0].size();
	bool poss[n+2];
	poss[0] = 0;
	for(lli i= 1;i<n-1;i++){
		poss[i] = 0;
		if(a[1][i] < a[0][i] && a[1][i] < a[2][i]){
			poss[i] = 1;
		}
	}
	lli ans= 0;
	for(lli i= 0;i<n;i++){
		lli mx = 0;
		lli sum = 0;
		for(int j=i+2;j<n;j++){
			mx = max(mx,(lli)a[1][j-1]);
			sum += poss[j-1];
			lli len = j-i-1;
			if(sum == len && mx < min((lli)a[1][i], (lli) a[1][j])){
				ans++;
			}
		}
	}
	return ans;
}


// signed main() {
//     ios_base::sync_with_stdio(false);
//     cin.tie(NULL);
//     #ifdef LOCAL
//     freopen("input.txt", "r", stdin);
//     #endif
//     int n, m;
//     cin>>n>>m;
//     vector<vector<int>> vec;
//     for(int i= 0;i<n;i++){
//     	vector<int> tmp;
//     	for(int j= 0;j<m;j++){
//     		int x;
//     		cin>>x;
//     		tmp.pb(x);
//     	}
//     	vec.pb(tmp);
//     }
//     cout<<count_rectangles(vec)<<endl;
//     return 0;
// }

• Subtask 1: 0 / 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