oj.uz

Submission #432000

# Submission time Handle Problem Language Result Execution time Memory
432000 2021-06-17T18:50:11 Z gonengazit Stations (IOI20_stations) C++14
76 / 100
 870 ms 840 KB 
#include "stations.h"
#include <vector>
#include <bits/stdc++.h>
using namespace std;
#define ii pair<int,int>
#define x first
#define y second
vector<int> labels;
vector<vector<int>> g;
int tme;
void dfs1(int i,int f=0,int t=0){
	if(t==0){
		labels[i]=++tme*2;
	}
	for(auto u:g[i]){
		if(u!=f){
			dfs1(u,i,(t+1)%2);
		}
	}
	if(t==1){
		labels[i]=++tme*2+1;
	}
}

// void dfs1(int i, int f=0){
// 	int tin=++tme;
// 	for(auto u:g[i]){
// 		if(u!=f){
// 			dfs1(u,i);
// 		}
// 	}
// 	int tout=tme;
// 	labels[i]=tin*1000+tout;
// }
std::vector<int> label(int n, int k, std::vector<int> u, std::vector<int> v) {
	tme=-1;
	labels.assign(n,-1);
	g.assign(n,vector<int>());
	for(int i=0; i<n-1; i++){
		g[u[i]].push_back(v[i]);
		g[v[i]].push_back(u[i]);
	}

	dfs1(0);
	return labels;
}

int find_next_station(int s, int t, std::vector<int> c) {
	
	int r=s%2;
	s/=2;
	vector<pair<ii,int>> cld;
	int f=-1;
	if(r==0){
		int prev=s;
		for(auto i:c){
			int k=i/2;
			cld.emplace_back(ii(prev+1,k),i);
			prev=k;
		}
		if(s!=0){
			f=cld.back().y;
			cld.pop_back();
		}
	}
	else{
		f=c[0];
		for(int j=1; j<c.size(); j++){
			int i=c[j];
			int k=i/2;
			if(!cld.empty())
				cld.back().x.y=k-1;
			cld.emplace_back(ii(k,-1),i);
		}
		if(!cld.empty()){
			cld.back().x.y=s;
		}
	}

	t/=2;

	for(auto i:cld){
		if(i.x.x<=t&&i.x.y>=t){
			return i.y;
		}
	}
	return f;
}
/*
1
5 100
0 1
1 2
1 3
2 4
3
0 1 2
1 2 2
1 4 2*/

Compilation message

stations.cpp: In function 'int find_next_station(int, int, std::vector<int>)':
stations.cpp:68:17: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   68 |   for(int j=1; j<c.size(); j++){
      |                ~^~~~~~~~~

Subtask #1
0 / 5.0

# Verdict Execution time Memory Grader output
1 Incorrect 4 ms 452 KB Invalid labels (values out of range). scenario=2, k=1000, vertex=1, label=1991
2 Halted 0 ms 0 KB -

Subtask #2
0 / 8.0

# Verdict Execution time Memory Grader output
1 Incorrect 4 ms 400 KB Invalid labels (values out of range). scenario=0, k=1000, vertex=1, label=1023
2 Halted 0 ms 0 KB -

Subtask #3
16.0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 527 ms 624 KB Output is correct
2 Correct 471 ms 628 KB Output is correct
3 Correct 856 ms 404 KB Output is correct
4 Correct 705 ms 488 KB Output is correct
5 Correct 600 ms 400 KB Output is correct
6 Correct 458 ms 600 KB Output is correct
7 Correct 505 ms 616 KB Output is correct
8 Correct 3 ms 468 KB Output is correct
9 Correct 4 ms 468 KB Output is correct
10 Correct 1 ms 468 KB Output is correct
11 Correct 578 ms 400 KB Output is correct
12 Correct 481 ms 596 KB Output is correct
13 Correct 472 ms 520 KB Output is correct
14 Correct 478 ms 528 KB Output is correct
15 Correct 55 ms 472 KB Output is correct
16 Correct 68 ms 540 KB Output is correct
17 Correct 114 ms 528 KB Output is correct

Subtask #4
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 837 ms 484 KB Output is correct
2 Correct 672 ms 400 KB Output is correct
3 Correct 605 ms 400 KB Output is correct
4 Correct 2 ms 468 KB Output is correct
5 Correct 5 ms 468 KB Output is correct
6 Correct 2 ms 468 KB Output is correct
7 Correct 611 ms 488 KB Output is correct
8 Correct 861 ms 468 KB Output is correct
9 Correct 707 ms 480 KB Output is correct
10 Correct 527 ms 400 KB Output is correct
11 Correct 6 ms 468 KB Output is correct
12 Correct 6 ms 468 KB Output is correct
13 Correct 5 ms 472 KB Output is correct
14 Correct 3 ms 468 KB Output is correct
15 Correct 2 ms 468 KB Output is correct
16 Correct 520 ms 492 KB Output is correct
17 Correct 462 ms 400 KB Output is correct
18 Correct 503 ms 400 KB Output is correct
19 Correct 526 ms 484 KB Output is correct
20 Correct 584 ms 400 KB Output is correct

Subtask #5
50.0 / 61.0

# Verdict Execution time Memory Grader output
1 Partially correct 492 ms 608 KB Partially correct
2 Partially correct 468 ms 608 KB Partially correct
3 Correct 808 ms 540 KB Output is correct
4 Correct 642 ms 488 KB Output is correct
5 Correct 536 ms 400 KB Output is correct
6 Partially correct 494 ms 604 KB Partially correct
7 Partially correct 476 ms 476 KB Partially correct
8 Correct 4 ms 468 KB Output is correct
9 Correct 5 ms 468 KB Output is correct
10 Correct 2 ms 464 KB Output is correct
11 Partially correct 453 ms 528 KB Partially correct
12 Partially correct 502 ms 520 KB Partially correct
13 Correct 870 ms 476 KB Output is correct
14 Correct 650 ms 400 KB Output is correct
15 Correct 577 ms 492 KB Output is correct
16 Partially correct 455 ms 488 KB Partially correct
17 Correct 580 ms 400 KB Output is correct
18 Partially correct 486 ms 696 KB Partially correct
19 Partially correct 452 ms 692 KB Partially correct
20 Partially correct 443 ms 484 KB Partially correct
21 Correct 67 ms 400 KB Output is correct
22 Partially correct 74 ms 528 KB Partially correct
23 Partially correct 99 ms 572 KB Partially correct
24 Correct 5 ms 524 KB Output is correct
25 Correct 7 ms 468 KB Output is correct
26 Correct 5 ms 400 KB Output is correct
27 Correct 3 ms 468 KB Output is correct
28 Correct 2 ms 476 KB Output is correct
29 Correct 526 ms 532 KB Output is correct
30 Correct 472 ms 400 KB Output is correct
31 Correct 525 ms 528 KB Output is correct
32 Correct 513 ms 400 KB Output is correct
33 Correct 486 ms 488 KB Output is correct
34 Partially correct 313 ms 612 KB Partially correct
35 Partially correct 456 ms 720 KB Partially correct
36 Partially correct 445 ms 736 KB Partially correct
37 Partially correct 463 ms 700 KB Partially correct
38 Partially correct 424 ms 712 KB Partially correct
39 Partially correct 475 ms 840 KB Partially correct
40 Partially correct 459 ms 780 KB Partially correct
41 Partially correct 454 ms 700 KB Partially correct
42 Partially correct 65 ms 548 KB Partially correct
43 Partially correct 108 ms 584 KB Partially correct
44 Partially correct 132 ms 528 KB Partially correct
45 Partially correct 173 ms 528 KB Partially correct
46 Partially correct 307 ms 528 KB Partially correct
47 Partially correct 320 ms 556 KB Partially correct
48 Partially correct 62 ms 548 KB Partially correct
49 Partially correct 61 ms 716 KB Partially correct