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Submission #733863

# Submission time Handle Problem Language Result Execution time Memory
733863 2023-05-01T11:19:58 Z vjudge1 City Mapping (NOI18_citymapping) C++17
25 / 100
 120 ms 8776 KB 
#include "citymapping.h"
#include <bits/stdc++.h>
using namespace std;
using ll = long long;
void find_roads(int N, int Q, int A[], int B[], int W[]) {
	vector<tuple<ll, int, int>> T;
	for (int i = 0; i < N; i++) {
		for (int j = i + 1; j < N; j++) {
			T.emplace_back(get_distance(i + 1, j + 1), i, j);
		}
	}
	sort(T.begin(), T.end());
	vector<int> par(N);
	iota(par.begin(), par.end(), 0);
	function<int(int)> find = [&](int x) {
		return x == par[x] ? x : par[x] = find(par[x]);
	};
	int p = 0;
	for (int i = 0; i < T.size(); i++) {
		auto [z, x, y] = T[i];
		if (find(x) != find(y)) {
			A[p] = x + 1;
			B[p] = y + 1;
			W[p] = z;
			p++;
			par[find(x)] = find(y);
		}
	}
}

Compilation message

citymapping.cpp: In function 'void find_roads(int, int, int*, int*, int*)':
citymapping.cpp:19:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::tuple<long long int, int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   19 |  for (int i = 0; i < T.size(); i++) {
      |                  ~~^~~~~~~~~~

Subtask #1
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 112 ms 8760 KB Correct: 498501 out of 500000 queries used.
2 Correct 105 ms 8768 KB Correct: 499500 out of 500000 queries used.
3 Correct 103 ms 8768 KB Correct: 492528 out of 500000 queries used.
4 Correct 95 ms 8764 KB Correct: 494515 out of 500000 queries used.
5 Correct 120 ms 8764 KB Correct: 498501 out of 500000 queries used.

Subtask #2
16.0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 112 ms 8760 KB Correct: 498501 out of 500000 queries used.
2 Correct 105 ms 8768 KB Correct: 499500 out of 500000 queries used.
3 Correct 103 ms 8768 KB Correct: 492528 out of 500000 queries used.
4 Correct 95 ms 8764 KB Correct: 494515 out of 500000 queries used.
5 Correct 120 ms 8764 KB Correct: 498501 out of 500000 queries used.
6 Correct 92 ms 8740 KB Correct: 495510 out of 500000 queries used.
7 Correct 96 ms 8760 KB Correct: 497503 out of 500000 queries used.
8 Correct 85 ms 8776 KB Correct: 497503 out of 500000 queries used.
9 Correct 82 ms 8704 KB Correct: 495510 out of 500000 queries used.
10 Correct 95 ms 8760 KB Correct: 496506 out of 500000 queries used.

Subtask #3
0 / 13.0

# Verdict Execution time Memory Grader output
1 Incorrect 2 ms 852 KB Too many calls to get_distance().
2 Halted 0 ms 0 KB -

Subtask #4
0 / 19.0

# Verdict Execution time Memory Grader output
1 Incorrect 2 ms 852 KB Too many calls to get_distance().
2 Halted 0 ms 0 KB -

Subtask #5
0 / 43.0

# Verdict Execution time Memory Grader output
1 Correct 112 ms 8760 KB Correct: 498501 out of 500000 queries used.
2 Correct 105 ms 8768 KB Correct: 499500 out of 500000 queries used.
3 Correct 103 ms 8768 KB Correct: 492528 out of 500000 queries used.
4 Correct 95 ms 8764 KB Correct: 494515 out of 500000 queries used.
5 Correct 120 ms 8764 KB Correct: 498501 out of 500000 queries used.
6 Correct 92 ms 8740 KB Correct: 495510 out of 500000 queries used.
7 Correct 96 ms 8760 KB Correct: 497503 out of 500000 queries used.
8 Correct 85 ms 8776 KB Correct: 497503 out of 500000 queries used.
9 Correct 82 ms 8704 KB Correct: 495510 out of 500000 queries used.
10 Correct 95 ms 8760 KB Correct: 496506 out of 500000 queries used.
11 Incorrect 2 ms 852 KB Too many calls to get_distance().
12 Halted 0 ms 0 KB -