oj.uz

Submission #427332

# Submission time Handle Problem Language Result Execution time Memory
427332 2021-06-14T14:23:06 Z AugustinasJucas Stations (IOI20_stations) C++14
5 / 100
 1484 ms 716 KB 
#include "stations.h"
#include <bits/stdc++.h>
using namespace std;
const int dydis = 1000;
vector<int> gr[dydis];
int enter[dydis];
int leave[dydis];
vector<int> ret (dydis);
int dbInd = 0;
void dfs(int v, int came){
	enter[v] = dbInd++;
	for(auto x : gr[v]){
		if(x == came) continue;
		dfs(x, v);
	}
	leave[v] = dbInd;
	ret[v] = enter[v] * dydis + leave[v] - 1;
	//cout << "enter " << v << " - " << enter[v] << ", o leave " << leave[v]-1 << endl;
}
void dfs1(int v, int came, int as){
	ret[v] = as;
	for(auto x : gr[v]){
		if(x == came) continue;
		dfs1(x, v, as+1);
	}
}
vector<int> label(int n, int k, vector<int> u, vector<int> v) {
	int mxsz = 0;
	for(int i = 0; i < n; i++){
		gr[i].clear();
		gr[i].clear();
	}
	dbInd = 0;
	ret.resize(n);
	for(int i = 0; i < n-1; i++){
		gr[u[i]].push_back(v[i]);
		gr[v[i]].push_back(u[i]);
	}
	for(int i = 0; i < n; i++) mxsz = max(mxsz, (int)gr[i].size());
	if(mxsz <= 2){
		int st = 0;
		for(int i = 0; i < n; i++) if(gr[i].size() == 1) st = i;
		dfs1(st, -1, 0);
	}else{
		dfs(0, -1);
	}
	
	return ret;
}
/*
int find_next_station(int s, int t, vector<int> c) {
	int enterS = s / 1000;
	int leaveS = s % 1000;
	int enterT = t / 1000;
	int leaveT = t % 1000;
//	cout << "kitas einant is " << s << " i " << t << " yra:\n";
	if(enterS <= enterT && leaveT <= leaveS){
	//	cout << enterS << " yra " << enterT << " tevas\n";
		for(auto x : c){
			int e = x / 1000;
			int l = x % 1000;
			if(e <= enterT && leaveT <= l && !(e <= enterS && leaveS <= l)){
		//		cout << "ret " << x << endl << endl;
				return x;
			}
		}
	}else{ // eisiu aukstyn
		for(auto x : c){
			int e = x / 1000;
			int l = x % 1000;
			if(e <= enterS && leaveS <= l){
			//	cout << "ret " << x << endl << endl;
				return x;
			}
		}
	}
	return c[0];
}
*/


int find_next_station(int s, int t, vector<int> c) {
	if(s < t) return s+1;
	return s-1;
}

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 687 ms 520 KB Output is correct
2 Correct 760 ms 636 KB Output is correct
3 Correct 1162 ms 520 KB Output is correct
4 Correct 919 ms 716 KB Output is correct
5 Correct 982 ms 400 KB Output is correct
6 Correct 483 ms 496 KB Output is correct
7 Correct 659 ms 496 KB Output is correct
8 Correct 4 ms 468 KB Output is correct
9 Correct 3 ms 420 KB Output is correct
10 Correct 2 ms 416 KB Output is correct

Subtask #2
0 / 8.0

# Verdict Execution time Memory Grader output
1 Incorrect 5 ms 372 KB Invalid labels (values out of range). scenario=0, k=1000, vertex=1, label=1511
2 Halted 0 ms 0 KB -

Subtask #3
0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 650 ms 516 KB Output is correct
2 Correct 638 ms 516 KB Output is correct
3 Correct 1361 ms 584 KB Output is correct
4 Correct 931 ms 500 KB Output is correct
5 Correct 730 ms 656 KB Output is correct
6 Correct 459 ms 516 KB Output is correct
7 Correct 549 ms 516 KB Output is correct
8 Correct 2 ms 528 KB Output is correct
9 Correct 7 ms 548 KB Output is correct
10 Correct 2 ms 468 KB Output is correct
11 Incorrect 619 ms 520 KB Wrong query response.
12 Halted 0 ms 0 KB -

Subtask #4
0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1484 ms 628 KB Output is correct
2 Correct 1101 ms 400 KB Output is correct
3 Correct 607 ms 400 KB Output is correct
4 Correct 2 ms 596 KB Output is correct
5 Correct 4 ms 420 KB Output is correct
6 Correct 2 ms 528 KB Output is correct
7 Incorrect 756 ms 400 KB Wrong query response.
8 Halted 0 ms 0 KB -

Subtask #5
0 / 61.0

# Verdict Execution time Memory Grader output
1 Correct 730 ms 528 KB Output is correct
2 Correct 519 ms 648 KB Output is correct
3 Correct 1089 ms 520 KB Output is correct
4 Correct 890 ms 640 KB Output is correct
5 Correct 742 ms 528 KB Output is correct
6 Correct 593 ms 516 KB Output is correct
7 Correct 618 ms 520 KB Output is correct
8 Correct 3 ms 596 KB Output is correct
9 Correct 5 ms 468 KB Output is correct
10 Correct 2 ms 472 KB Output is correct
11 Incorrect 573 ms 520 KB Wrong query response.
12 Halted 0 ms 0 KB -