oj.uz

Submission #578482

# Submission time Handle Problem Language Result Execution time Memory
578482 2022-06-17T04:34:14 Z amunduzbaev The Potion of Great Power (CEOI20_potion) C++17
100 / 100
 2945 ms 92420 KB 
#include "bits/stdc++.h"
using namespace std;
#ifndef EVAL
#include "grader.cpp"
#endif
 
#define ar array
const int N = 1e5 + 5;
const int C = 50;
vector<ar<int, 2>> edges[N];
vector<set<ar<int, 2>>> vals[N];
int h[N], n;

void init(int N, int D, int H[]) {
	n = N;
	for(int i=0;i<N;i++){
		h[i] = H[i];
	}
}

void curseChanges(int U, int A[], int B[]) {
	for(int i=0;i<U;i++){
		edges[A[i]].push_back({i + 1, B[i]});
		edges[B[i]].push_back({i + 1, A[i]});
	}
	
	for(int i=0;i<n;i++){
		set<ar<int, 2>> ss;
		for(int j=0;j<(int)edges[i].size();j++){
			if(j % C == 0){
				vals[i].push_back(ss);
			}
			
			if(ss.count({h[edges[i][j][1]], edges[i][j][1]})){
				ss.erase({h[edges[i][j][1]], edges[i][j][1]});
			} else {
				ss.insert({h[edges[i][j][1]], edges[i][j][1]});
			}
		}
	}
}

void get(int a, int t, set<ar<int, 2>>& res){
	int j = lower_bound(edges[a].begin(), edges[a].end(), (ar<int, 2>){t + 1, -1}) - edges[a].begin();
	if(!j) return;
	j--;
	
	res = vals[a][j/C];
	for(int k=(j/C) * C;k<(int)edges[a].size() && edges[a][k][0]<=t;k++){
		if(res.count({h[edges[a][k][1]], edges[a][k][1]})){
			res.erase({h[edges[a][k][1]], edges[a][k][1]});
		} else {
			res.insert({h[edges[a][k][1]], edges[a][k][1]});
		}
	}
	
	//~ for(auto x : res) cout<<x[0]<<" ";
	//~ cout<<"\n";
	
	return;
}

set<ar<int, 2>> a, b;
int question(int x, int y, int v) {
	a.clear(), b.clear();
	get(x, v, a), get(y, v, b);
	
	auto lx = a.begin(), rx = b.begin();
	int last = -1e9, f = -1, res = 1e9;
	while(lx != a.end() || rx != b.end()){
		if(f == 0 && rx != b.end()) res = min(res, (*rx)[0] - last);
		if(f == 1 && lx != a.end()) res = min(res, (*lx)[0] - last);
		if(lx != a.end() && rx != b.end()){
			if(*lx <= *rx) last = (*lx)[0], f = 0, lx++;
			else last = (*rx)[0], f = 1, rx++;
		} else break;
	}
	
	return res;
}
 
/*
 
6 5 11 4
2 42 1000 54 68 234
0 1
2 0
3 4
3 5
3 5
1 3
5 3
0 5
3 0
1 3
3 5
0 3 4 26 
3 0 8 0
0 5 5 1000000000
3 0 11 14
 
*/

Subtask #1
0.0 / 0.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 4944 KB Output is correct

Subtask #2
17.0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 5072 KB Output is correct
2 Correct 4 ms 5072 KB Output is correct
3 Correct 4 ms 5072 KB Output is correct
4 Correct 16 ms 5960 KB Output is correct

Subtask #3
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 235 ms 19460 KB Output is correct
2 Correct 198 ms 19512 KB Output is correct
3 Correct 455 ms 14760 KB Output is correct
4 Correct 1823 ms 57888 KB Output is correct
5 Correct 690 ms 13412 KB Output is correct
6 Correct 2945 ms 85600 KB Output is correct
7 Correct 874 ms 25128 KB Output is correct

Subtask #4
18.0 / 18.0

# Verdict Execution time Memory Grader output
1 Correct 237 ms 19508 KB Output is correct
2 Correct 2542 ms 89588 KB Output is correct
3 Correct 1596 ms 51784 KB Output is correct
4 Correct 2603 ms 85064 KB Output is correct
5 Correct 372 ms 23468 KB Output is correct
6 Correct 2836 ms 85248 KB Output is correct

Subtask #5
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 45 ms 5968 KB Output is correct
2 Correct 235 ms 5464 KB Output is correct
3 Correct 403 ms 5584 KB Output is correct
4 Correct 1086 ms 7208 KB Output is correct
5 Correct 978 ms 6864 KB Output is correct
6 Correct 191 ms 5328 KB Output is correct
7 Correct 944 ms 6568 KB Output is correct

Subtask #6
30.0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 4944 KB Output is correct
2 Correct 4 ms 5072 KB Output is correct
3 Correct 4 ms 5072 KB Output is correct
4 Correct 4 ms 5072 KB Output is correct
5 Correct 16 ms 5960 KB Output is correct
6 Correct 235 ms 19460 KB Output is correct
7 Correct 198 ms 19512 KB Output is correct
8 Correct 455 ms 14760 KB Output is correct
9 Correct 1823 ms 57888 KB Output is correct
10 Correct 690 ms 13412 KB Output is correct
11 Correct 2945 ms 85600 KB Output is correct
12 Correct 874 ms 25128 KB Output is correct
13 Correct 237 ms 19508 KB Output is correct
14 Correct 2542 ms 89588 KB Output is correct
15 Correct 1596 ms 51784 KB Output is correct
16 Correct 2603 ms 85064 KB Output is correct
17 Correct 372 ms 23468 KB Output is correct
18 Correct 2836 ms 85248 KB Output is correct
19 Correct 45 ms 5968 KB Output is correct
20 Correct 235 ms 5464 KB Output is correct
21 Correct 403 ms 5584 KB Output is correct
22 Correct 1086 ms 7208 KB Output is correct
23 Correct 978 ms 6864 KB Output is correct
24 Correct 191 ms 5328 KB Output is correct
25 Correct 944 ms 6568 KB Output is correct
26 Correct 1039 ms 37912 KB Output is correct
27 Correct 1528 ms 51760 KB Output is correct
28 Correct 1485 ms 47100 KB Output is correct
29 Correct 1649 ms 58184 KB Output is correct
30 Correct 2789 ms 85408 KB Output is correct
31 Correct 2481 ms 92420 KB Output is correct
32 Correct 2554 ms 85432 KB Output is correct