oj.uz

Submission #571297

# Submission time Handle Problem Language Result Execution time Memory
571297 2022-06-01T16:45:09 Z beaconmc Dreaming (IOI13_dreaming) C++14
10 / 100
 1000 ms 15960 KB 
#include <bits/stdc++.h>
#pragma GCC optimize("O3")
typedef long long ll;
#define FOR(i,x,y) for(ll i=x; i<y; i++)
#define FORNEG(i,x,y) for(ll i=x; i>y; i--)
#define double long double
#include "dreaming.h"

using namespace std;


ll cc[100005];

ll find(ll a){
    while (a!=cc[a]) cc[a] = cc[cc[a]], a = cc[a];
    return a;
}
void unite(ll a,ll b){
    cc[find(a)] = find(b);
}


ll globalmax = -1;

vector<pair<ll, ll>> edges[100005];
vector<ll> sussies[100005];


int sus(vector<ll> a){
	if (a.size()==1) return 0;

	bool visited[100005];
	FOR(i,0,100004) visited[i] = 0;

	vector<vector<ll>> stack;
	ll maxi = 0;
	vector<ll> path;

	stack.push_back({0,a[0]});
	visited[a[0]] = 1;

	while (stack.size()){
		vector<ll> temp;

		vector<ll> node = stack[stack.size()-1];

		stack.pop_back();

		if (maxi < node[0]) path = node, maxi = node[0];


		for (auto&i : edges[node[node.size()-1]]){
			if (!visited[i.first]){
				visited[i.first] = 1;
				temp = node;
				temp[0] += i.second;
				temp.push_back(i.first);
				stack.push_back(temp);
			}
		}
	}


	ll realsus = path[path.size()-1];


	FOR(i,0,100004) visited[i] = 0;

	stack.clear();
	maxi = 0;
	path.clear();
	stack.push_back({0,0,realsus});
	visited[realsus] = 1;



	while (stack.size()){
		vector<ll> temp;

		vector<ll> node = stack[stack.size()-1];
		stack.pop_back();

		if (maxi < node[0]) path = node, maxi = node[0];

		for (auto&i : edges[node[node.size()-1]]){
			if (!visited[i.first]){
				visited[i.first] = 1;
				temp = node;
				temp.pop_back();
				temp[0] += i.second;
				temp.push_back(i.second);
				temp.push_back(i.first);
				stack.push_back(temp);
			}
		}
	}

	ll mini = 1000000000000;
	ll cur = 0;
	globalmax = max(globalmax, path[0]);




	FOR(i,1,path.size()-1){
		cur += path[i];
		mini = min(mini, max(path[0]-cur, cur));
	}


	return mini;

}


int travelTime(int n, int m, int L, int a[], int b[], int t[]){
	FOR(i,0,n) cc[i] = i;

	FOR(i,0,m){
		edges[a[i]].push_back({b[i], t[i]});
		edges[b[i]].push_back({a[i], t[i]});
	}

	FOR(i,0,n){
		for (auto&j : edges[i]){
			unite(i, j.first);
		}
	}

	FOR(i,0,n){
		sussies[find(i)].push_back(i);
	}
	vector<ll> kindasus;


	for (auto&i : sussies){
		if (i.size()==0) continue;
		kindasus.push_back(sus(i));
	}

	sort(kindasus.begin(), kindasus.end());

	// for (auto&i : kindasus){
	// 	cout << i << endl;
	// }

	if (kindasus.size()==2){
		return max(globalmax, kindasus[kindasus.size()-1] + kindasus[kindasus.size()-2] + L);
	}


	return max(globalmax, max(kindasus[kindasus.size()-2] + kindasus[kindasus.size()-3] + 2*L, kindasus[kindasus.size()-1] + kindasus[kindasus.size()-2] + L));

}

Compilation message

dreaming.cpp: In function 'int sus(std::vector<long long int>)':
dreaming.cpp:4:33: warning: comparison of integer expressions of different signedness: 'll' {aka 'long long int'} and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
    4 | #define FOR(i,x,y) for(ll i=x; i<y; i++)
......
  105 |  FOR(i,1,path.size()-1){
      |      ~~~~~~~~~~~~~~~~~           
dreaming.cpp:105:2: note: in expansion of macro 'FOR'
  105 |  FOR(i,1,path.size()-1){
      |  ^~~

Subtask #1
0 / 14.0

# Verdict Execution time Memory Grader output
1 Execution timed out 1069 ms 15960 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 5076 KB Output is correct
2 Correct 4 ms 5008 KB Output is correct
3 Correct 3 ms 5076 KB Output is correct
4 Correct 5 ms 5144 KB Output is correct
5 Correct 5 ms 5076 KB Output is correct
6 Correct 5 ms 5036 KB Output is correct
7 Correct 3 ms 5076 KB Output is correct
8 Correct 3 ms 5076 KB Output is correct
9 Correct 3 ms 5076 KB Output is correct
10 Correct 4 ms 5120 KB Output is correct
11 Correct 3 ms 5012 KB Output is correct
12 Correct 3 ms 5100 KB Output is correct
13 Correct 4 ms 5076 KB Output is correct
14 Correct 5 ms 5076 KB Output is correct
15 Correct 3 ms 5076 KB Output is correct
16 Correct 5 ms 5012 KB Output is correct
17 Correct 4 ms 5076 KB Output is correct
18 Correct 4 ms 5076 KB Output is correct
19 Correct 3 ms 5076 KB Output is correct
20 Correct 3 ms 5076 KB Output is correct
21 Correct 5 ms 5076 KB Output is correct
22 Correct 4 ms 5188 KB Output is correct
23 Correct 3 ms 5136 KB Output is correct
24 Correct 4 ms 5144 KB Output is correct
25 Correct 4 ms 5136 KB Output is correct

Subtask #3
0 / 23.0

# Verdict Execution time Memory Grader output
1 Execution timed out 1069 ms 15960 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #4
0 / 18.0

# Verdict Execution time Memory Grader output
1 Correct 286 ms 11112 KB Output is correct
2 Correct 277 ms 11256 KB Output is correct
3 Correct 258 ms 11156 KB Output is correct
4 Correct 305 ms 11164 KB Output is correct
5 Correct 271 ms 11256 KB Output is correct
6 Correct 264 ms 11944 KB Output is correct
7 Correct 265 ms 11384 KB Output is correct
8 Correct 218 ms 11032 KB Output is correct
9 Correct 272 ms 10976 KB Output is correct
10 Correct 328 ms 11284 KB Output is correct
11 Correct 3 ms 5012 KB Output is correct
12 Correct 40 ms 10080 KB Output is correct
13 Correct 43 ms 10188 KB Output is correct
14 Correct 43 ms 10136 KB Output is correct
15 Correct 42 ms 10100 KB Output is correct
16 Correct 41 ms 10056 KB Output is correct
17 Correct 41 ms 10140 KB Output is correct
18 Correct 54 ms 10172 KB Output is correct
19 Correct 38 ms 10144 KB Output is correct
20 Incorrect 3 ms 5012 KB Output isn't correct
21 Halted 0 ms 0 KB -

Subtask #5
0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 5076 KB Output is correct
2 Correct 4 ms 5008 KB Output is correct
3 Correct 3 ms 5076 KB Output is correct
4 Correct 5 ms 5144 KB Output is correct
5 Correct 5 ms 5076 KB Output is correct
6 Correct 5 ms 5036 KB Output is correct
7 Correct 3 ms 5076 KB Output is correct
8 Correct 3 ms 5076 KB Output is correct
9 Correct 3 ms 5076 KB Output is correct
10 Correct 4 ms 5120 KB Output is correct
11 Correct 3 ms 5012 KB Output is correct
12 Correct 3 ms 5100 KB Output is correct
13 Correct 4 ms 5076 KB Output is correct
14 Correct 5 ms 5076 KB Output is correct
15 Correct 3 ms 5076 KB Output is correct
16 Correct 5 ms 5012 KB Output is correct
17 Correct 4 ms 5076 KB Output is correct
18 Correct 4 ms 5076 KB Output is correct
19 Correct 3 ms 5076 KB Output is correct
20 Correct 3 ms 5076 KB Output is correct
21 Correct 5 ms 5076 KB Output is correct
22 Correct 4 ms 5188 KB Output is correct
23 Correct 3 ms 5136 KB Output is correct
24 Correct 4 ms 5144 KB Output is correct
25 Correct 4 ms 5136 KB Output is correct
26 Correct 4 ms 5152 KB Output is correct
27 Correct 6 ms 5304 KB Output is correct
28 Correct 8 ms 5332 KB Output is correct
29 Correct 7 ms 5204 KB Output is correct
30 Correct 7 ms 5204 KB Output is correct
31 Correct 6 ms 5308 KB Output is correct
32 Correct 5 ms 5204 KB Output is correct
33 Correct 8 ms 5204 KB Output is correct
34 Correct 10 ms 5332 KB Output is correct
35 Correct 4 ms 5076 KB Output is correct
36 Correct 5 ms 5136 KB Output is correct
37 Correct 5 ms 5044 KB Output is correct
38 Correct 4 ms 5076 KB Output is correct
39 Correct 3 ms 5076 KB Output is correct
40 Correct 3 ms 5076 KB Output is correct
41 Correct 5 ms 5012 KB Output is correct
42 Correct 4 ms 5036 KB Output is correct
43 Correct 4 ms 5076 KB Output is correct
44 Correct 3 ms 5076 KB Output is correct
45 Correct 3 ms 5076 KB Output is correct
46 Correct 3 ms 5012 KB Output is correct
47 Correct 3 ms 5076 KB Output is correct
48 Correct 3 ms 5076 KB Output is correct
49 Correct 3 ms 5076 KB Output is correct
50 Correct 3 ms 5076 KB Output is correct
51 Correct 4 ms 5076 KB Output is correct
52 Incorrect 4 ms 5092 KB Output isn't correct
53 Halted 0 ms 0 KB -

Subtask #6
0 / 23.0

# Verdict Execution time Memory Grader output
1 Execution timed out 1069 ms 15960 KB Time limit exceeded
2 Halted 0 ms 0 KB -