oj.uz

Submission #571342

# Submission time Handle Problem Language Result Execution time Memory
571342 2022-06-01T20:38:54 Z beaconmc Dreaming (IOI13_dreaming) C++14
40 / 100
 1000 ms 15280 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 = 0;
 
vector<pair<ll, ll>> edges[100005];
vector<ll> sussies[100005];
bool visited[100005];
 
 
int sus(vector<ll> a){
	if (a.size()==1) return 0;
 
	
	for (auto&i : a) 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 (auto&i : a) 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() == 1) return globalmax;
 
	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++)
......
  107 |  FOR(i,1,path.size()-1){
      |      ~~~~~~~~~~~~~~~~~           
dreaming.cpp:107:2: note: in expansion of macro 'FOR'
  107 |  FOR(i,1,path.size()-1){
      |  ^~~

Subtask #1
0 / 14.0

# Verdict Execution time Memory Grader output
1 Execution timed out 1065 ms 15280 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 4948 KB Output is correct
2 Correct 3 ms 5012 KB Output is correct
3 Correct 3 ms 4948 KB Output is correct
4 Correct 3 ms 4948 KB Output is correct
5 Correct 3 ms 5008 KB Output is correct
6 Correct 3 ms 4948 KB Output is correct
7 Correct 3 ms 4948 KB Output is correct
8 Correct 3 ms 4948 KB Output is correct
9 Correct 3 ms 4980 KB Output is correct
10 Correct 3 ms 5008 KB Output is correct
11 Correct 3 ms 4948 KB Output is correct
12 Correct 4 ms 4948 KB Output is correct
13 Correct 3 ms 4948 KB Output is correct
14 Correct 4 ms 4948 KB Output is correct
15 Correct 4 ms 4948 KB Output is correct
16 Correct 3 ms 4948 KB Output is correct
17 Correct 3 ms 4948 KB Output is correct
18 Correct 3 ms 4948 KB Output is correct
19 Correct 3 ms 5012 KB Output is correct
20 Correct 4 ms 5072 KB Output is correct
21 Correct 3 ms 4948 KB Output is correct
22 Correct 3 ms 4948 KB Output is correct
23 Correct 3 ms 5012 KB Output is correct
24 Correct 3 ms 4948 KB Output is correct
25 Correct 3 ms 5012 KB Output is correct

Subtask #3
0 / 23.0

# Verdict Execution time Memory Grader output
1 Execution timed out 1065 ms 15280 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #4
18.0 / 18.0

# Verdict Execution time Memory Grader output
1 Correct 44 ms 11024 KB Output is correct
2 Correct 44 ms 11092 KB Output is correct
3 Correct 47 ms 11032 KB Output is correct
4 Correct 43 ms 11024 KB Output is correct
5 Correct 51 ms 11100 KB Output is correct
6 Correct 51 ms 11928 KB Output is correct
7 Correct 49 ms 11292 KB Output is correct
8 Correct 44 ms 10896 KB Output is correct
9 Correct 45 ms 10892 KB Output is correct
10 Correct 48 ms 11216 KB Output is correct
11 Correct 3 ms 4948 KB Output is correct
12 Correct 12 ms 10124 KB Output is correct
13 Correct 12 ms 10196 KB Output is correct
14 Correct 12 ms 10132 KB Output is correct
15 Correct 12 ms 10064 KB Output is correct
16 Correct 12 ms 10116 KB Output is correct
17 Correct 12 ms 10128 KB Output is correct
18 Correct 14 ms 10208 KB Output is correct
19 Correct 11 ms 10064 KB Output is correct
20 Correct 3 ms 4948 KB Output is correct
21 Correct 3 ms 5016 KB Output is correct
22 Correct 3 ms 5076 KB Output is correct
23 Correct 12 ms 10068 KB Output is correct

Subtask #5
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 4948 KB Output is correct
2 Correct 3 ms 5012 KB Output is correct
3 Correct 3 ms 4948 KB Output is correct
4 Correct 3 ms 4948 KB Output is correct
5 Correct 3 ms 5008 KB Output is correct
6 Correct 3 ms 4948 KB Output is correct
7 Correct 3 ms 4948 KB Output is correct
8 Correct 3 ms 4948 KB Output is correct
9 Correct 3 ms 4980 KB Output is correct
10 Correct 3 ms 5008 KB Output is correct
11 Correct 3 ms 4948 KB Output is correct
12 Correct 4 ms 4948 KB Output is correct
13 Correct 3 ms 4948 KB Output is correct
14 Correct 4 ms 4948 KB Output is correct
15 Correct 4 ms 4948 KB Output is correct
16 Correct 3 ms 4948 KB Output is correct
17 Correct 3 ms 4948 KB Output is correct
18 Correct 3 ms 4948 KB Output is correct
19 Correct 3 ms 5012 KB Output is correct
20 Correct 4 ms 5072 KB Output is correct
21 Correct 3 ms 4948 KB Output is correct
22 Correct 3 ms 4948 KB Output is correct
23 Correct 3 ms 5012 KB Output is correct
24 Correct 3 ms 4948 KB Output is correct
25 Correct 3 ms 5012 KB Output is correct
26 Correct 4 ms 5076 KB Output is correct
27 Correct 4 ms 5204 KB Output is correct
28 Correct 6 ms 5204 KB Output is correct
29 Correct 4 ms 5016 KB Output is correct
30 Correct 4 ms 5228 KB Output is correct
31 Correct 6 ms 5280 KB Output is correct
32 Correct 4 ms 5028 KB Output is correct
33 Correct 4 ms 5152 KB Output is correct
34 Correct 5 ms 5280 KB Output is correct
35 Correct 3 ms 5008 KB Output is correct
36 Correct 3 ms 4948 KB Output is correct
37 Correct 3 ms 4948 KB Output is correct
38 Correct 3 ms 5004 KB Output is correct
39 Correct 3 ms 4948 KB Output is correct
40 Correct 3 ms 5012 KB Output is correct
41 Correct 3 ms 5076 KB Output is correct
42 Correct 3 ms 4948 KB Output is correct
43 Correct 3 ms 4948 KB Output is correct
44 Correct 3 ms 4948 KB Output is correct
45 Correct 3 ms 4948 KB Output is correct
46 Correct 3 ms 4948 KB Output is correct
47 Correct 3 ms 5008 KB Output is correct
48 Correct 3 ms 4948 KB Output is correct
49 Correct 3 ms 4948 KB Output is correct
50 Correct 3 ms 5012 KB Output is correct
51 Correct 4 ms 4948 KB Output is correct
52 Correct 3 ms 4948 KB Output is correct
53 Correct 4 ms 5008 KB Output is correct
54 Correct 12 ms 5548 KB Output is correct
55 Correct 13 ms 5588 KB Output is correct
56 Correct 6 ms 5204 KB Output is correct
57 Correct 4 ms 5144 KB Output is correct
58 Correct 6 ms 5588 KB Output is correct
59 Correct 6 ms 5540 KB Output is correct
60 Correct 5 ms 5204 KB Output is correct
61 Correct 4 ms 5204 KB Output is correct
62 Correct 6 ms 5460 KB Output is correct
63 Correct 5 ms 5588 KB Output is correct
64 Correct 3 ms 5164 KB Output is correct
65 Correct 5 ms 5204 KB Output is correct
66 Correct 5 ms 5460 KB Output is correct
67 Correct 5 ms 5408 KB Output is correct
68 Correct 5 ms 5204 KB Output is correct
69 Correct 4 ms 5204 KB Output is correct
70 Correct 4 ms 5204 KB Output is correct
71 Correct 4 ms 5204 KB Output is correct
72 Correct 5 ms 5280 KB Output is correct
73 Correct 5 ms 5332 KB Output is correct
74 Correct 5 ms 5332 KB Output is correct
75 Correct 5 ms 5332 KB Output is correct
76 Correct 6 ms 5588 KB Output is correct
77 Correct 6 ms 5536 KB Output is correct
78 Correct 5 ms 5204 KB Output is correct
79 Correct 4 ms 5204 KB Output is correct
80 Correct 3 ms 5140 KB Output is correct
81 Correct 3 ms 5136 KB Output is correct
82 Correct 4 ms 5276 KB Output is correct
83 Correct 5 ms 5204 KB Output is correct
84 Correct 4 ms 5204 KB Output is correct
85 Correct 3 ms 5204 KB Output is correct
86 Correct 4 ms 5184 KB Output is correct
87 Correct 5 ms 5320 KB Output is correct
88 Correct 4 ms 5204 KB Output is correct
89 Correct 4 ms 5204 KB Output is correct
90 Correct 5 ms 5204 KB Output is correct
91 Correct 4 ms 5204 KB Output is correct
92 Correct 4 ms 5204 KB Output is correct
93 Correct 5 ms 5332 KB Output is correct
94 Correct 5 ms 5480 KB Output is correct
95 Correct 5 ms 5460 KB Output is correct
96 Correct 5 ms 5444 KB Output is correct
97 Correct 5 ms 5332 KB Output is correct
98 Correct 6 ms 5460 KB Output is correct
99 Correct 5 ms 5412 KB Output is correct
100 Correct 5 ms 5332 KB Output is correct
101 Correct 5 ms 5416 KB Output is correct
102 Correct 3 ms 5016 KB Output is correct
103 Correct 3 ms 4948 KB Output is correct
104 Correct 4 ms 5012 KB Output is correct
105 Correct 3 ms 4948 KB Output is correct
106 Correct 3 ms 4948 KB Output is correct
107 Correct 3 ms 4948 KB Output is correct
108 Correct 3 ms 4948 KB Output is correct
109 Correct 3 ms 5012 KB Output is correct
110 Correct 3 ms 4948 KB Output is correct
111 Correct 3 ms 4948 KB Output is correct
112 Correct 3 ms 5136 KB Output is correct
113 Correct 4 ms 5204 KB Output is correct
114 Correct 4 ms 5168 KB Output is correct

Subtask #6
0 / 23.0

# Verdict Execution time Memory Grader output
1 Execution timed out 1065 ms 15280 KB Time limit exceeded
2 Halted 0 ms 0 KB -