oj.uz

Submission #123905

# Submission time Handle Problem Language Result Execution time Memory
123905 2019-07-02T09:20:55 Z nvmdava Highway Tolls (IOI18_highway) C++17
100 / 100
 373 ms 10596 KB 
#include "highway.h"
#define FOR(i, a, b) for(int i = a; i <= b; i++)
#define pb push_back
#include <bits/stdc++.h>
using namespace std;

vector<int> adj[100005], path, w;
long long def;
int p[100005], cat[100005];
vector<int> com[3];
int solve(vector<int>& ve){
	reverse(ve.begin(), ve.end());
	int l = 0, r = ve.size() - 1;
	while(l != r){
		int m = (l + r) >> 1;
		FOR(i, 0, m)
			w[p[ve[i]]] = 1;
		if(ask(w) > def) r = m;
		else l = m + 1;
		for(int i = 0; i <= m; i++)
			w[p[ve[i]]] = 0;
	}
	return ve[l];
}

void find_pair(int N, vector<int> U, vector<int> V, int A, int B) {
	int m = U.size();
	FOR(i, 0, m - 1){
		adj[U[i]].pb(i);
		adj[V[i]].pb(i);
		path.push_back(V[i] + U[i]);
	}
	w = vector<int>(m, 0);
	def = ask(w);	
	int l = 0, r = m - 1;
	while(l != r){
		int mm = (l + r) >> 1;
		FOR(i, 0, mm)
			w[i] = 1;
		if(ask(w) > def) r = mm;
		else l = mm + 1;
		FOR(i, 0, mm)
			w[i] = 0;
	}
	
	queue<pair<int, int> > q;
	q.push({V[l], 1});
	q.push({U[l], 2});
	cat[V[l]] = 1;
	p[V[l]] = l;
	p[U[l]] = l;
	cat[U[l]] = 2;
	com[1].push_back(V[l]);
	com[2].push_back(U[l]);
	while(!q.empty()){
		int u = q.front().first, t = q.front().second;
		q.pop();
		for(int x : adj[u]){
			int e = path[x] - u; 
			if(cat[e]) continue;
			cat[e] = t;
			com[t].push_back(e);
			p[e] = x;
			q.push({e, t});
		}
	}
	FOR(i, 0, m - 1)
		w[i] = 1;
	FOR(i, 0, N - 1)
		w[p[i]] = 0;
	answer(solve(com[1]), solve(com[2]));
}

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 2608 KB Output is correct
2 Correct 4 ms 2552 KB Output is correct
3 Correct 4 ms 2680 KB Output is correct
4 Correct 4 ms 2672 KB Output is correct
5 Correct 5 ms 2712 KB Output is correct
6 Correct 4 ms 2676 KB Output is correct
7 Correct 4 ms 2728 KB Output is correct
8 Correct 4 ms 2680 KB Output is correct
9 Correct 4 ms 2556 KB Output is correct
10 Correct 4 ms 2552 KB Output is correct
11 Correct 4 ms 2680 KB Output is correct
12 Correct 4 ms 2672 KB Output is correct

Subtask #2
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 2684 KB Output is correct
2 Correct 27 ms 3384 KB Output is correct
3 Correct 212 ms 9124 KB Output is correct
4 Correct 226 ms 9132 KB Output is correct
5 Correct 238 ms 9144 KB Output is correct
6 Correct 189 ms 9132 KB Output is correct
7 Correct 231 ms 9128 KB Output is correct
8 Correct 262 ms 9132 KB Output is correct
9 Correct 271 ms 9124 KB Output is correct
10 Correct 223 ms 9128 KB Output is correct
11 Correct 271 ms 8992 KB Output is correct
12 Correct 258 ms 9160 KB Output is correct
13 Correct 253 ms 9024 KB Output is correct
14 Correct 257 ms 9028 KB Output is correct

Subtask #3
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 23 ms 3300 KB Output is correct
2 Correct 40 ms 4096 KB Output is correct
3 Correct 63 ms 4816 KB Output is correct
4 Correct 158 ms 8976 KB Output is correct
5 Correct 187 ms 8980 KB Output is correct
6 Correct 160 ms 9364 KB Output is correct
7 Correct 210 ms 8900 KB Output is correct
8 Correct 172 ms 8984 KB Output is correct
9 Correct 201 ms 9264 KB Output is correct

Subtask #4
33.0 / 33.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 2680 KB Output is correct
2 Correct 34 ms 3356 KB Output is correct
3 Correct 196 ms 7900 KB Output is correct
4 Correct 249 ms 9132 KB Output is correct
5 Correct 232 ms 9160 KB Output is correct
6 Correct 243 ms 9128 KB Output is correct
7 Correct 252 ms 9120 KB Output is correct
8 Correct 246 ms 9180 KB Output is correct
9 Correct 235 ms 9144 KB Output is correct
10 Correct 258 ms 9124 KB Output is correct
11 Correct 251 ms 9024 KB Output is correct
12 Correct 236 ms 9284 KB Output is correct
13 Correct 257 ms 9268 KB Output is correct
14 Correct 276 ms 9012 KB Output is correct
15 Correct 263 ms 9112 KB Output is correct
16 Correct 264 ms 9180 KB Output is correct
17 Correct 281 ms 9108 KB Output is correct
18 Correct 263 ms 9104 KB Output is correct
19 Correct 234 ms 9180 KB Output is correct
20 Correct 237 ms 8992 KB Output is correct
21 Correct 197 ms 9864 KB Output is correct
22 Correct 193 ms 9964 KB Output is correct
23 Correct 201 ms 9472 KB Output is correct
24 Correct 194 ms 9396 KB Output is correct
25 Correct 213 ms 9212 KB Output is correct

Subtask #5
18.0 / 18.0

# Verdict Execution time Memory Grader output
1 Correct 48 ms 3460 KB Output is correct
2 Correct 31 ms 3476 KB Output is correct
3 Correct 256 ms 9568 KB Output is correct
4 Correct 305 ms 9736 KB Output is correct
5 Correct 357 ms 10448 KB Output is correct
6 Correct 349 ms 10576 KB Output is correct
7 Correct 351 ms 10460 KB Output is correct
8 Correct 328 ms 10348 KB Output is correct
9 Correct 236 ms 7988 KB Output is correct
10 Correct 271 ms 8336 KB Output is correct
11 Correct 267 ms 8636 KB Output is correct
12 Correct 285 ms 9800 KB Output is correct
13 Correct 350 ms 10044 KB Output is correct
14 Correct 334 ms 10052 KB Output is correct
15 Correct 337 ms 10120 KB Output is correct
16 Correct 261 ms 8800 KB Output is correct
17 Correct 221 ms 10032 KB Output is correct
18 Correct 225 ms 10080 KB Output is correct
19 Correct 199 ms 9944 KB Output is correct
20 Correct 238 ms 10036 KB Output is correct
21 Correct 322 ms 10436 KB Output is correct

Subtask #6
31.0 / 31.0

# Verdict Execution time Memory Grader output
1 Correct 30 ms 3448 KB Output is correct
2 Correct 32 ms 3368 KB Output is correct
3 Correct 285 ms 9468 KB Output is correct
4 Correct 294 ms 9856 KB Output is correct
5 Correct 305 ms 9876 KB Output is correct
6 Correct 356 ms 10448 KB Output is correct
7 Correct 245 ms 9548 KB Output is correct
8 Correct 301 ms 9812 KB Output is correct
9 Correct 322 ms 9952 KB Output is correct
10 Correct 359 ms 10596 KB Output is correct
11 Correct 354 ms 10568 KB Output is correct
12 Correct 346 ms 10468 KB Output is correct
13 Correct 270 ms 8544 KB Output is correct
14 Correct 262 ms 8288 KB Output is correct
15 Correct 248 ms 8564 KB Output is correct
16 Correct 239 ms 8392 KB Output is correct
17 Correct 237 ms 8640 KB Output is correct
18 Correct 217 ms 8296 KB Output is correct
19 Correct 350 ms 9740 KB Output is correct
20 Correct 337 ms 10008 KB Output is correct
21 Correct 352 ms 10080 KB Output is correct
22 Correct 314 ms 10176 KB Output is correct
23 Correct 359 ms 10380 KB Output is correct
24 Correct 332 ms 10172 KB Output is correct
25 Correct 347 ms 10316 KB Output is correct
26 Correct 358 ms 10316 KB Output is correct
27 Correct 223 ms 9996 KB Output is correct
28 Correct 232 ms 10080 KB Output is correct
29 Correct 239 ms 10140 KB Output is correct
30 Correct 195 ms 9916 KB Output is correct
31 Correct 226 ms 9964 KB Output is correct
32 Correct 210 ms 9900 KB Output is correct
33 Correct 213 ms 10100 KB Output is correct
34 Correct 222 ms 9992 KB Output is correct
35 Correct 239 ms 10008 KB Output is correct
36 Correct 249 ms 9868 KB Output is correct
37 Correct 222 ms 10220 KB Output is correct
38 Correct 195 ms 9932 KB Output is correct
39 Correct 342 ms 10344 KB Output is correct
40 Correct 326 ms 10312 KB Output is correct
41 Correct 298 ms 10208 KB Output is correct
42 Correct 373 ms 10168 KB Output is correct