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Submission #294212

# Submission time Handle Problem Language Result Execution time Memory
294212 2020-09-08T17:11:55 Z Muhammetali Highway Tolls (IOI18_highway) C++11
100 / 100
 302 ms 14484 KB 
#include "highway.h"
#include <bits/stdc++.h>
#define mp make_pair
#define f first
#define s second
#define sz(x) (int)(x).size()
#define rsz resize
#define ins insert
#define ft front()
#define bk back()
#define pf push_front
#define pb push_back
#define eb emplace_back
#define lb lower_bound
#define ub upper_bound
using namespace std;
typedef long long ll;
typedef long double ld;
typedef pair<int,int> pi;
typedef pair<ll,ll> pl;
typedef vector<int> vi;
typedef vector<bool> vb;
typedef vector<ll> vl;
typedef vector<pi> vpi;
typedef vector<pl> vpl;
template<class T>bool tmin(T& a,T b){if(a>b){a=b;return 1;}return 0;}
template<class T>bool tmax(T& a,T b){if(a<b){a=b;return 1;}return 0;}
ll k;
vpl con[100000];
vi u,v,w,tree[2];
bool vis[100000],fin[100000];
int func(vector<int> &tree)
{
	int l=0;int r=sz(tree)-1;
	while(l<r)
	{
		int mid=(l+r)/2;
		for (int i=mid+1;i<=r;i++) fin[tree[i]]=1;
		for (int i=0;i<sz(u);i++)
		{
			if (fin[u[i]]!=fin[v[i]])
			{
				w[i]=1;
			}
		}
		if (k!=ask(w)) l=mid+1;
		else r=mid;
		for (int i=0;i<sz(u);i++) w[i]=0;
		for (int i=mid+1;i<=r;i++) fin[tree[i]]=0;
	}
	return tree[l];
}
void find_pair(int N, std::vector<int> U, std::vector<int> V, int A, int B)
{
	u=U;v=V;
	for (int i=0;i<sz(U);i++)
	{
		con[U[i]].pb({V[i],i});
		con[V[i]].pb({U[i],i});
	}
	w.resize(sz(U));
	k=ask(w);
	int l=0;int r=sz(U)-1;
	while(l<r)
	{
		int mid=(l+r)/2;
		for (int i=l;i<=mid;i++) w[i]=1;
		if (k!=ask(w)) r=mid;
		else l=mid+1;
		for (int i=l;i<=mid;i++) w[i]=0;
	}
	queue<pl> q;
	q.push({0,U[l]});
	q.push({1,V[l]});
	vis[U[l]]=vis[V[l]]=1;
	while(sz(q))
	{
		int bar=q.front().f;
		int la=q.front().s;
		q.pop();
		tree[bar].pb(la);
		for (auto i:con[la])
		{
			if (!vis[i.f])
			{
				vis[i.f]=1;
				q.push({bar,i.f});
			}
		}
	}
	answer(func(tree[0]),func(tree[1]));
}

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 2688 KB Output is correct
2 Correct 2 ms 2688 KB Output is correct
3 Correct 2 ms 2688 KB Output is correct
4 Correct 2 ms 2688 KB Output is correct
5 Correct 2 ms 2688 KB Output is correct
6 Correct 2 ms 2688 KB Output is correct
7 Correct 2 ms 2688 KB Output is correct
8 Correct 2 ms 2688 KB Output is correct
9 Correct 2 ms 2688 KB Output is correct
10 Correct 2 ms 2688 KB Output is correct
11 Correct 2 ms 2688 KB Output is correct
12 Correct 2 ms 2688 KB Output is correct

Subtask #2
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 2816 KB Output is correct
2 Correct 15 ms 3556 KB Output is correct
3 Correct 148 ms 10708 KB Output is correct
4 Correct 149 ms 10720 KB Output is correct
5 Correct 157 ms 10800 KB Output is correct
6 Correct 140 ms 10692 KB Output is correct
7 Correct 152 ms 10600 KB Output is correct
8 Correct 150 ms 10620 KB Output is correct
9 Correct 143 ms 10600 KB Output is correct
10 Correct 154 ms 10600 KB Output is correct
11 Correct 149 ms 10476 KB Output is correct
12 Correct 163 ms 10604 KB Output is correct
13 Correct 157 ms 10632 KB Output is correct
14 Correct 158 ms 10576 KB Output is correct

Subtask #3
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 15 ms 3584 KB Output is correct
2 Correct 27 ms 4344 KB Output is correct
3 Correct 40 ms 5308 KB Output is correct
4 Correct 123 ms 10100 KB Output is correct
5 Correct 125 ms 10232 KB Output is correct
6 Correct 121 ms 10116 KB Output is correct
7 Correct 124 ms 10052 KB Output is correct
8 Correct 120 ms 10072 KB Output is correct
9 Correct 125 ms 10244 KB Output is correct

Subtask #4
33.0 / 33.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 2816 KB Output is correct
2 Correct 32 ms 3604 KB Output is correct
3 Correct 102 ms 9004 KB Output is correct
4 Correct 144 ms 10600 KB Output is correct
5 Correct 145 ms 10592 KB Output is correct
6 Correct 137 ms 10600 KB Output is correct
7 Correct 139 ms 10600 KB Output is correct
8 Correct 150 ms 10596 KB Output is correct
9 Correct 160 ms 10600 KB Output is correct
10 Correct 142 ms 10596 KB Output is correct
11 Correct 165 ms 10620 KB Output is correct
12 Correct 190 ms 10708 KB Output is correct
13 Correct 170 ms 10776 KB Output is correct
14 Correct 151 ms 10512 KB Output is correct
15 Correct 146 ms 10588 KB Output is correct
16 Correct 186 ms 10612 KB Output is correct
17 Correct 157 ms 10812 KB Output is correct
18 Correct 166 ms 10664 KB Output is correct
19 Correct 137 ms 10708 KB Output is correct
20 Correct 163 ms 10788 KB Output is correct
21 Correct 160 ms 11236 KB Output is correct
22 Correct 120 ms 11236 KB Output is correct
23 Correct 182 ms 10844 KB Output is correct
24 Correct 139 ms 10764 KB Output is correct
25 Correct 165 ms 10772 KB Output is correct

Subtask #5
18.0 / 18.0

# Verdict Execution time Memory Grader output
1 Correct 18 ms 3712 KB Output is correct
2 Correct 19 ms 3712 KB Output is correct
3 Correct 168 ms 11620 KB Output is correct
4 Correct 192 ms 12736 KB Output is correct
5 Correct 248 ms 14324 KB Output is correct
6 Correct 244 ms 14232 KB Output is correct
7 Correct 227 ms 14168 KB Output is correct
8 Correct 238 ms 14204 KB Output is correct
9 Correct 165 ms 12068 KB Output is correct
10 Correct 181 ms 13100 KB Output is correct
11 Correct 203 ms 13264 KB Output is correct
12 Correct 231 ms 14064 KB Output is correct
13 Correct 239 ms 14236 KB Output is correct
14 Correct 235 ms 14136 KB Output is correct
15 Correct 227 ms 14040 KB Output is correct
16 Correct 222 ms 13668 KB Output is correct
17 Correct 194 ms 11708 KB Output is correct
18 Correct 220 ms 11828 KB Output is correct
19 Correct 143 ms 11728 KB Output is correct
20 Correct 150 ms 11664 KB Output is correct
21 Correct 285 ms 13916 KB Output is correct

Subtask #6
31.0 / 31.0

# Verdict Execution time Memory Grader output
1 Correct 17 ms 3584 KB Output is correct
2 Correct 24 ms 3864 KB Output is correct
3 Correct 229 ms 11664 KB Output is correct
4 Correct 177 ms 12124 KB Output is correct
5 Correct 196 ms 12616 KB Output is correct
6 Correct 296 ms 14360 KB Output is correct
7 Correct 165 ms 11844 KB Output is correct
8 Correct 179 ms 12044 KB Output is correct
9 Correct 223 ms 12572 KB Output is correct
10 Correct 243 ms 14184 KB Output is correct
11 Correct 224 ms 14104 KB Output is correct
12 Correct 224 ms 14484 KB Output is correct
13 Correct 234 ms 13184 KB Output is correct
14 Correct 175 ms 13100 KB Output is correct
15 Correct 210 ms 13192 KB Output is correct
16 Correct 194 ms 13116 KB Output is correct
17 Correct 210 ms 13088 KB Output is correct
18 Correct 256 ms 13092 KB Output is correct
19 Correct 277 ms 14080 KB Output is correct
20 Correct 212 ms 14296 KB Output is correct
21 Correct 230 ms 14240 KB Output is correct
22 Correct 242 ms 14220 KB Output is correct
23 Correct 263 ms 14076 KB Output is correct
24 Correct 240 ms 14144 KB Output is correct
25 Correct 269 ms 14232 KB Output is correct
26 Correct 302 ms 14176 KB Output is correct
27 Correct 146 ms 11584 KB Output is correct
28 Correct 141 ms 11320 KB Output is correct
29 Correct 166 ms 12088 KB Output is correct
30 Correct 138 ms 11408 KB Output is correct
31 Correct 157 ms 11436 KB Output is correct
32 Correct 163 ms 11588 KB Output is correct
33 Correct 167 ms 11920 KB Output is correct
34 Correct 142 ms 11440 KB Output is correct
35 Correct 142 ms 11452 KB Output is correct
36 Correct 130 ms 11540 KB Output is correct
37 Correct 145 ms 11684 KB Output is correct
38 Correct 191 ms 11820 KB Output is correct
39 Correct 277 ms 13980 KB Output is correct
40 Correct 284 ms 13912 KB Output is correct
41 Correct 294 ms 13924 KB Output is correct
42 Correct 293 ms 13800 KB Output is correct