oj.uz

Submission #1037053

# Submission time Handle Problem Language Result Execution time Memory
1037053 2024-07-28T00:37:01 Z HappyCapybara Sky Walking (IOI19_walk) C++17
10 / 100
 4000 ms 702616 KB 
#include "walk.h"
#include<bits/stdc++.h>
using namespace std;

#define ll long long

ll min_distance(vector<int> x, vector<int> h, vector<int> l, vector<int> r, vector<int> y, int s, int g){
	int n = x.size(), m = l.size();
	vector<vector<pair<int,int>>> sws(n, {{0, m}});
	for (int i=0; i<m; i++){
		for (int j=l[i]; j<=r[i]; j++){
			if (y[i] <= h[j]) sws[j].push_back({y[i], i});
		}
	}
	y.push_back(0);
	for (int i=0; i<n; i++) sort(sws[i].begin(), sws[i].end());
	map<ll,vector<int>> pn;
	for (int i=0; i<n; i++){
		if (sws[i].size() == 0) continue;
		for (int j=0; j<sws[i].size(); j++){
			if (j < sws[i].size()-1) pn[i*100001+sws[i][j].second].push_back(sws[i][j+1].second);
			if (j > 0) pn[i*100001+sws[i][j].second].push_back(sws[i][j-1].second);
		}
	}
	priority_queue<vector<ll>> pq;
	unordered_set<ll> seen;
	pq.push({0, s, m});
	while (!pq.empty()){
		ll d = -pq.top()[0];
		int bld = pq.top()[1], sw = pq.top()[2];
		pq.pop();
		//cout << d << " " << bld << " " << sw << "\n";
		if (bld == g && sw == m) return d;
		if (seen.find(bld*100001+sw) != seen.end()) continue;
		seen.insert(bld*100001+sw);
		for (int next : pn[bld*100001+sw]) pq.push({-(d+abs(y[next]-y[sw])), bld, next});
		if (sw == m) continue;
		for (int next=l[sw]; next<=r[sw]; next++){
			if (next != bld && h[next] >= y[sw]) pq.push({-(d+abs(x[next]-x[bld])), next, sw});
		}
	}
	return -1;
}

Compilation message

walk.cpp: In function 'long long int min_distance(std::vector<int>, std::vector<int>, std::vector<int>, std::vector<int>, std::vector<int>, int, int)':
walk.cpp:20:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   20 |   for (int j=0; j<sws[i].size(); j++){
      |                 ~^~~~~~~~~~~~~~
walk.cpp:21:10: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   21 |    if (j < sws[i].size()-1) pn[i*100001+sws[i][j].second].push_back(sws[i][j+1].second);
      |        ~~^~~~~~~~~~~~~~~~~

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 1 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 432 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 2 ms 692 KB Output is correct
7 Correct 1 ms 604 KB Output is correct
8 Correct 1 ms 604 KB Output is correct
9 Correct 1 ms 348 KB Output is correct
10 Correct 1 ms 604 KB Output is correct
11 Correct 0 ms 436 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 0 ms 344 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 0 ms 348 KB Output is correct
17 Correct 4 ms 744 KB Output is correct

Subtask #2
0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 289 ms 91072 KB Output is correct
4 Incorrect 1156 ms 131356 KB Output isn't correct
5 Halted 0 ms 0 KB -

Subtask #3
0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 103 ms 21744 KB Output is correct
2 Execution timed out 4056 ms 702616 KB Time limit exceeded
3 Halted 0 ms 0 KB -

Subtask #4
0 / 18.0

# Verdict Execution time Memory Grader output
1 Correct 103 ms 21744 KB Output is correct
2 Execution timed out 4056 ms 702616 KB Time limit exceeded
3 Halted 0 ms 0 KB -

Subtask #5
0 / 43.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 1 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 432 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 2 ms 692 KB Output is correct
7 Correct 1 ms 604 KB Output is correct
8 Correct 1 ms 604 KB Output is correct
9 Correct 1 ms 348 KB Output is correct
10 Correct 1 ms 604 KB Output is correct
11 Correct 0 ms 436 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 0 ms 344 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 0 ms 348 KB Output is correct
17 Correct 4 ms 744 KB Output is correct
18 Correct 0 ms 348 KB Output is correct
19 Correct 0 ms 348 KB Output is correct
20 Correct 289 ms 91072 KB Output is correct
21 Incorrect 1156 ms 131356 KB Output isn't correct
22 Halted 0 ms 0 KB -