oj.uz

Submission #824638

# Submission time Handle Problem Language Result Execution time Memory
824638 2023-08-14T08:27:38 Z NothingXD Stations (IOI20_stations) C++17
100 / 100
 600 ms 836 KB 
#include "stations.h"
#include <bits/stdc++.h>

using namespace std;

typedef long long ll;
typedef pair<int,int> pii;
typedef pair<ll,ll> pll;

void debug_out(){cerr << endl;}
template<typename Head, typename... Tail>
void debug_out(Head H, Tail... T){
	cerr << H << ' ';
	debug_out(T...);
}

#define debug(...) cerr << "(" << #__VA_ARGS__ << "): ", debug_out(__VA_ARGS__)
#define F first
#define S second
#define all(x) x.begin(), x.end()
#define MP(x, y) make_pair(x, y)

const int maxn = 1e3 + 10;

int n, h[maxn], val[maxn], tme;
vector<int> g[maxn];

void dfs(int v, int p = -1){
	if (h[v] % 2 == 0) val[v] = ++tme;
	for (auto u: g[v]){
		if (u != p){
			h[u] = h[v] + 1;
			dfs(u, v);
		}
	}
	if (h[v] & 1) val[v] = ++tme;
	//debug(v, val[v]);
}

std::vector<int> label(int n, int k, std::vector<int> u, std::vector<int> v) {
	for (int i = 0; i < n; i++){
		g[i].clear();
	}
	tme = 0;
	for (int i = 0; i < n-1; i++){
		g[u[i]].push_back(v[i]);
		g[v[i]].push_back(u[i]);
	}
	h[0] = 0;
	dfs(0);
	vector<int> res;
	for (int i = 0; i < n; i++){
		res.push_back(val[i]);
	}
	return res;
}

int find_next_station(int s, int t, std::vector<int> c) {
	if (c.size() == 1) return c[0];
	if (s < c[0]){
		if (s < t && t <= c[0]) return c[0];
		for (int i = 1; i < c.size()-1; i++){
			if (c[i-1] < t && t <= c[i]) return c[i];
		}
		return c.back();
	}
	if (c.back() <= t && t < s) return c.back();
	for (int i = c.size()-2; i; i--){
		if (c[i] <= t && t < c[i+1]) return c[i];
	}
	return c[0];
}

Compilation message

stations.cpp: In function 'int find_next_station(int, int, std::vector<int>)':
stations.cpp:62:21: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   62 |   for (int i = 1; i < c.size()-1; i++){
      |                   ~~^~~~~~~~~~~~

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 391 ms 532 KB Output is correct
2 Correct 275 ms 656 KB Output is correct
3 Correct 600 ms 528 KB Output is correct
4 Correct 468 ms 532 KB Output is correct
5 Correct 404 ms 420 KB Output is correct
6 Correct 304 ms 528 KB Output is correct
7 Correct 288 ms 544 KB Output is correct
8 Correct 1 ms 492 KB Output is correct
9 Correct 3 ms 492 KB Output is correct
10 Correct 0 ms 492 KB Output is correct

Subtask #2
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 276 ms 528 KB Output is correct
2 Correct 362 ms 524 KB Output is correct
3 Correct 551 ms 524 KB Output is correct
4 Correct 446 ms 416 KB Output is correct
5 Correct 384 ms 420 KB Output is correct
6 Correct 269 ms 544 KB Output is correct

Subtask #3
16.0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 329 ms 544 KB Output is correct
2 Correct 302 ms 656 KB Output is correct
3 Correct 542 ms 420 KB Output is correct
4 Correct 456 ms 548 KB Output is correct
5 Correct 362 ms 420 KB Output is correct
6 Correct 294 ms 548 KB Output is correct
7 Correct 314 ms 548 KB Output is correct
8 Correct 1 ms 492 KB Output is correct
9 Correct 1 ms 492 KB Output is correct
10 Correct 0 ms 492 KB Output is correct
11 Correct 396 ms 416 KB Output is correct
12 Correct 314 ms 764 KB Output is correct
13 Correct 318 ms 792 KB Output is correct
14 Correct 302 ms 548 KB Output is correct
15 Correct 36 ms 620 KB Output is correct
16 Correct 44 ms 572 KB Output is correct
17 Correct 82 ms 676 KB Output is correct

Subtask #4
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 549 ms 524 KB Output is correct
2 Correct 423 ms 416 KB Output is correct
3 Correct 390 ms 416 KB Output is correct
4 Correct 1 ms 628 KB Output is correct
5 Correct 2 ms 492 KB Output is correct
6 Correct 0 ms 492 KB Output is correct
7 Correct 410 ms 536 KB Output is correct
8 Correct 574 ms 416 KB Output is correct
9 Correct 433 ms 416 KB Output is correct
10 Correct 403 ms 548 KB Output is correct
11 Correct 4 ms 492 KB Output is correct
12 Correct 4 ms 624 KB Output is correct
13 Correct 4 ms 604 KB Output is correct
14 Correct 1 ms 624 KB Output is correct
15 Correct 1 ms 620 KB Output is correct
16 Correct 346 ms 524 KB Output is correct
17 Correct 327 ms 528 KB Output is correct
18 Correct 285 ms 528 KB Output is correct
19 Correct 294 ms 524 KB Output is correct
20 Correct 311 ms 416 KB Output is correct

Subtask #5
61.0 / 61.0

# Verdict Execution time Memory Grader output
1 Correct 402 ms 656 KB Output is correct
2 Correct 298 ms 572 KB Output is correct
3 Correct 599 ms 548 KB Output is correct
4 Correct 467 ms 544 KB Output is correct
5 Correct 422 ms 544 KB Output is correct
6 Correct 276 ms 632 KB Output is correct
7 Correct 290 ms 544 KB Output is correct
8 Correct 1 ms 500 KB Output is correct
9 Correct 3 ms 500 KB Output is correct
10 Correct 0 ms 500 KB Output is correct
11 Correct 310 ms 548 KB Output is correct
12 Correct 347 ms 548 KB Output is correct
13 Correct 503 ms 420 KB Output is correct
14 Correct 407 ms 420 KB Output is correct
15 Correct 354 ms 528 KB Output is correct
16 Correct 277 ms 544 KB Output is correct
17 Correct 345 ms 532 KB Output is correct
18 Correct 291 ms 656 KB Output is correct
19 Correct 273 ms 760 KB Output is correct
20 Correct 312 ms 524 KB Output is correct
21 Correct 48 ms 620 KB Output is correct
22 Correct 41 ms 572 KB Output is correct
23 Correct 62 ms 672 KB Output is correct
24 Correct 3 ms 500 KB Output is correct
25 Correct 3 ms 500 KB Output is correct
26 Correct 2 ms 548 KB Output is correct
27 Correct 2 ms 496 KB Output is correct
28 Correct 1 ms 492 KB Output is correct
29 Correct 352 ms 528 KB Output is correct
30 Correct 334 ms 420 KB Output is correct
31 Correct 322 ms 548 KB Output is correct
32 Correct 306 ms 528 KB Output is correct
33 Correct 349 ms 552 KB Output is correct
34 Correct 247 ms 544 KB Output is correct
35 Correct 284 ms 652 KB Output is correct
36 Correct 454 ms 836 KB Output is correct
37 Correct 334 ms 656 KB Output is correct
38 Correct 382 ms 716 KB Output is correct
39 Correct 316 ms 764 KB Output is correct
40 Correct 266 ms 644 KB Output is correct
41 Correct 411 ms 672 KB Output is correct
42 Correct 41 ms 532 KB Output is correct
43 Correct 70 ms 672 KB Output is correct
44 Correct 84 ms 572 KB Output is correct
45 Correct 97 ms 612 KB Output is correct
46 Correct 186 ms 544 KB Output is correct
47 Correct 214 ms 528 KB Output is correct
48 Correct 48 ms 680 KB Output is correct
49 Correct 40 ms 800 KB Output is correct