Submission #148688

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
148688	2019-09-01T04:55:38 Z	USA1(#3634, ecnerwala, scott_wu, ksun48)	Crosses on the Grid (FXCUP4_cross)	C++17	100 / 100	259 ms	14436 KB

cross

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

using namespace std;
using ll = long long;
long long SelectCross(int k, std::vector<int> a, std::vector<int> b) {
	vector<pair<int,int> > x;
	multiset<int> r;
	for(int i = 0; i < (int)a.size(); i++){
		x.push_back({a[i], b[i]});
	}
	sort(x.begin(), x.end());
	reverse(x.begin(), x.end());

	ll ans = 0;
	multiset<int> bb;
	for(pair<int,int> p : x){
		bb.insert(p.second);
		while((int)bb.size() > k) bb.erase(bb.begin());
		if((int)bb.size() == k){
			ll A = p.first;
			ll B = *bb.begin();
			ans = max(ans, 2 * A * B - A * A);
		}
	}
	return ans;
}

Subtask #1

8.0 / 8.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	5 ms	384 KB	Output is correct
2	Correct	5 ms	384 KB	Output is correct
3	Correct	5 ms	384 KB	Output is correct
4	Correct	6 ms	384 KB	Output is correct
5	Correct	13 ms	768 KB	Output is correct
6	Correct	122 ms	5740 KB	Output is correct
7	Correct	122 ms	5740 KB	Output is correct
8	Correct	121 ms	5484 KB	Output is correct

Subtask #2

55.0 / 55.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	5 ms	384 KB	Output is correct
2	Correct	5 ms	384 KB	Output is correct
3	Correct	5 ms	384 KB	Output is correct
4	Correct	6 ms	384 KB	Output is correct
5	Correct	13 ms	768 KB	Output is correct
6	Correct	122 ms	5740 KB	Output is correct
7	Correct	122 ms	5740 KB	Output is correct
8	Correct	121 ms	5484 KB	Output is correct
9	Correct	5 ms	384 KB	Output is correct
10	Correct	5 ms	384 KB	Output is correct
11	Correct	6 ms	384 KB	Output is correct
12	Correct	13 ms	768 KB	Output is correct
13	Correct	66 ms	3056 KB	Output is correct
14	Correct	126 ms	5736 KB	Output is correct
15	Correct	125 ms	5740 KB	Output is correct
16	Correct	126 ms	5740 KB	Output is correct

Subtask #3

37.0 / 37.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	5 ms	384 KB	Output is correct
2	Correct	5 ms	384 KB	Output is correct
3	Correct	5 ms	384 KB	Output is correct
4	Correct	6 ms	384 KB	Output is correct
5	Correct	13 ms	768 KB	Output is correct
6	Correct	122 ms	5740 KB	Output is correct
7	Correct	122 ms	5740 KB	Output is correct
8	Correct	121 ms	5484 KB	Output is correct
9	Correct	5 ms	384 KB	Output is correct
10	Correct	5 ms	384 KB	Output is correct
11	Correct	6 ms	384 KB	Output is correct
12	Correct	13 ms	768 KB	Output is correct
13	Correct	66 ms	3056 KB	Output is correct
14	Correct	126 ms	5736 KB	Output is correct
15	Correct	125 ms	5740 KB	Output is correct
16	Correct	126 ms	5740 KB	Output is correct
17	Correct	5 ms	384 KB	Output is correct
18	Correct	6 ms	256 KB	Output is correct
19	Correct	16 ms	1280 KB	Output is correct
20	Correct	73 ms	3052 KB	Output is correct
21	Correct	98 ms	5068 KB	Output is correct
22	Correct	129 ms	5736 KB	Output is correct
23	Correct	128 ms	5736 KB	Output is correct
24	Correct	147 ms	6364 KB	Output is correct
25	Correct	212 ms	11240 KB	Output is correct
26	Correct	259 ms	14436 KB	Output is correct