oj.uz

Submission #832431

# Submission time Handle Problem Language Result Execution time Memory
832431 2023-08-21T10:16:56 Z _martynas Crosses on the Grid (FXCUP4_cross) C++17
100 / 100
 115 ms 17412 KB 
#include "cross.h"
#include <vector>
#include <algorithm>
#include <numeric>
#include <set>

using namespace std;

long long SelectCross(int K, vector<int> I, vector<int> O) {
	int N = I.size();
	long long mx = 0;
	vector<int> orderI(N);
	iota(orderI.begin(), orderI.end(), 0);
	sort(orderI.begin(), orderI.end(), [&](int i, int j) { return I[i] > I[j]; });
	long long mndi = 1e15;
	multiset<long long> maxo;
	for(int i = 0, j = 0; i < N; i++) {
		mndi = I[orderI[i]];
		if(maxo.size() < K || (*maxo.begin()) < O[orderI[i]]) {
			maxo.insert(O[orderI[i]]);
			if(maxo.size() > K) maxo.erase(maxo.begin());
		}
		if(maxo.size() == K) mx = max(mx, mndi*(2*(*maxo.begin())-mndi));
	}
	return mx;
}

Compilation message

cross.cpp: In function 'long long int SelectCross(int, std::vector<int>, std::vector<int>)':
cross.cpp:19:18: warning: comparison of integer expressions of different signedness: 'std::multiset<long long int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   19 |   if(maxo.size() < K || (*maxo.begin()) < O[orderI[i]]) {
      |      ~~~~~~~~~~~~^~~
cross.cpp:21:19: warning: comparison of integer expressions of different signedness: 'std::multiset<long long int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   21 |    if(maxo.size() > K) maxo.erase(maxo.begin());
      |       ~~~~~~~~~~~~^~~
cross.cpp:23:18: warning: comparison of integer expressions of different signedness: 'std::multiset<long long int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   23 |   if(maxo.size() == K) mx = max(mx, mndi*(2*(*maxo.begin())-mndi));
      |      ~~~~~~~~~~~~^~~~
cross.cpp:17:17: warning: unused variable 'j' [-Wunused-variable]
   17 |  for(int i = 0, j = 0; i < N; i++) {
      |                 ^

Subtask #1
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 1 ms 232 KB Output is correct
5 Correct 3 ms 468 KB Output is correct
6 Correct 65 ms 4212 KB Output is correct
7 Correct 71 ms 4268 KB Output is correct
8 Correct 56 ms 4288 KB Output is correct

Subtask #2
55.0 / 55.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 1 ms 232 KB Output is correct
5 Correct 3 ms 468 KB Output is correct
6 Correct 65 ms 4212 KB Output is correct
7 Correct 71 ms 4268 KB Output is correct
8 Correct 56 ms 4288 KB Output is correct
9 Correct 0 ms 212 KB Output is correct
10 Correct 0 ms 212 KB Output is correct
11 Correct 1 ms 316 KB Output is correct
12 Correct 5 ms 768 KB Output is correct
13 Correct 40 ms 4336 KB Output is correct
14 Correct 61 ms 8200 KB Output is correct
15 Correct 69 ms 8236 KB Output is correct
16 Correct 55 ms 8096 KB Output is correct

Subtask #3
37.0 / 37.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 1 ms 232 KB Output is correct
5 Correct 3 ms 468 KB Output is correct
6 Correct 65 ms 4212 KB Output is correct
7 Correct 71 ms 4268 KB Output is correct
8 Correct 56 ms 4288 KB Output is correct
9 Correct 0 ms 212 KB Output is correct
10 Correct 0 ms 212 KB Output is correct
11 Correct 1 ms 316 KB Output is correct
12 Correct 5 ms 768 KB Output is correct
13 Correct 40 ms 4336 KB Output is correct
14 Correct 61 ms 8200 KB Output is correct
15 Correct 69 ms 8236 KB Output is correct
16 Correct 55 ms 8096 KB Output is correct
17 Correct 0 ms 212 KB Output is correct
18 Correct 1 ms 340 KB Output is correct
19 Correct 6 ms 1364 KB Output is correct
20 Correct 30 ms 4724 KB Output is correct
21 Correct 43 ms 6488 KB Output is correct
22 Correct 56 ms 8208 KB Output is correct
23 Correct 55 ms 8112 KB Output is correct
24 Correct 68 ms 9480 KB Output is correct
25 Correct 110 ms 14224 KB Output is correct
26 Correct 115 ms 17412 KB Output is correct