oj.uz

Submission #308158

# Submission time Handle Problem Language Result Execution time Memory
308158 2020-09-30T07:11:10 Z fefe Swapping Cities (APIO20_swap) C++17
100 / 100
 481 ms 19432 KB 
#include "swap.h"

#include <vector>
#include<bits/stdc++.h>
#define fi first
#define se second
using namespace std;
const int MAX_N = 100005;

struct EDGE{
	int x,y;
	int v;
	EDGE(int _x, int _y, int _v): x(_x), y(_y), v(_v){}
};
vector<EDGE> lst;
vector<pair<int, bool> > num[MAX_N];
int par[MAX_N], height[MAX_N];
int deg[MAX_N];
int val[MAX_N];
int m;

int find_par(int x, int max_val){
	if(val[x] > max_val){	
		return x;
	}
	if(x == par[x])	return x;
	return find_par(par[x], max_val);
}
void merge(int x, int y, int v){
	deg[x]++;
	deg[y]++;
	bool Z = false;
	if(deg[x] == 3 || deg[y] == 3)	Z = true;
	
	x = find_par(x, v);
	y = find_par(y, v);
	if(x == y){
		num[x].push_back(pair<int, bool>(v, true));
		return;
	}
	if(height[y] > height[x]){
		swap(x,y);
	}
	par[y] = x;
	val[y] = v;
	height[x] += height[x] == height[y];
	Z |= num[x].back().se | num[y].back().se;
	num[x].push_back(pair<int, bool>(v, Z));
}
void init(int N, int M, std::vector<int> U, std::vector<int> V, std::vector<int> W) {
	m = M;
	for(int i=0;i<M;i++){
		lst.push_back(EDGE(U[i], V[i], W[i]));
	}
	
	for(int i=0;i<N;i++){
		par[i] = i;
		height[i] = 1;
		deg[i] = 0;
		val[i] = -1;
		num[i].push_back(pair<int, bool>(-1, 0));
	}

	sort(lst.begin(), lst.end(), [&](const EDGE x, const EDGE y){
		return x.v < y.v;
	});
	
	int i = 0;
	for(EDGE p:lst){
		merge(p.x, p.y, i);
		i++;
	}
}

bool is_ok(int max_val, int x, int y){
	x = find_par(x, max_val);
	y = find_par(y, max_val);
	
	if(x != y)	return false;
	
	int idx = lower_bound(num[x].begin(), num[x].end(), pair<int, bool>(max_val + 1, false)) - num[x].begin() - 1;
	return num[x][idx].se;
}

int getMinimumFuelCapacity(int X, int Y) {
	int l = 0, r = m-1;
	while(l < r){
		int mid = (l + r) >> 1;
		if(is_ok(mid, X, Y)){
			r = mid;
		}else{
			l = mid + 1;
		}
	}
	return is_ok(l, X, Y) ? lst[l].v : -1;
}

Subtask #1
6.0 / 6.0

# 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 3 ms 2816 KB Output is correct
6 Correct 3 ms 2816 KB Output is correct
7 Correct 3 ms 2816 KB Output is correct
8 Correct 3 ms 2816 KB Output is correct
9 Correct 69 ms 10348 KB Output is correct
10 Correct 87 ms 12016 KB Output is correct
11 Correct 88 ms 11760 KB Output is correct
12 Correct 96 ms 12396 KB Output is correct
13 Correct 77 ms 12524 KB Output is correct
14 Correct 88 ms 10348 KB Output is correct
15 Correct 277 ms 13944 KB Output is correct
16 Correct 276 ms 13752 KB Output is correct
17 Correct 289 ms 14164 KB Output is correct
18 Correct 252 ms 13904 KB Output is correct
19 Correct 146 ms 7736 KB Output is correct
20 Correct 295 ms 15048 KB Output is correct
21 Correct 290 ms 15012 KB Output is correct
22 Correct 301 ms 15568 KB Output is correct
23 Correct 254 ms 15316 KB Output is correct

Subtask #2
7.0 / 7.0

# 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 323 ms 14484 KB Output is correct
4 Correct 319 ms 14932 KB Output is correct
5 Correct 340 ms 14852 KB Output is correct
6 Correct 310 ms 14804 KB Output is correct
7 Correct 334 ms 14920 KB Output is correct
8 Correct 327 ms 14492 KB Output is correct
9 Correct 325 ms 14692 KB Output is correct
10 Correct 324 ms 14472 KB Output is correct

Subtask #3
17.0 / 17.0

# 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 3 ms 2816 KB Output is correct
7 Correct 3 ms 2816 KB Output is correct
8 Correct 3 ms 2816 KB Output is correct
9 Correct 3 ms 2816 KB Output is correct
10 Correct 2 ms 2816 KB Output is correct
11 Correct 3 ms 2816 KB Output is correct
12 Correct 3 ms 2816 KB Output is correct
13 Correct 3 ms 2688 KB Output is correct
14 Correct 2 ms 2688 KB Output is correct
15 Correct 3 ms 2816 KB Output is correct
16 Correct 3 ms 2816 KB Output is correct
17 Correct 3 ms 2816 KB Output is correct
18 Correct 3 ms 2816 KB Output is correct
19 Correct 3 ms 2816 KB Output is correct
20 Correct 3 ms 2816 KB Output is correct
21 Correct 3 ms 2816 KB Output is correct
22 Correct 3 ms 2816 KB Output is correct
23 Correct 3 ms 2816 KB Output is correct
24 Correct 3 ms 2816 KB Output is correct
25 Correct 3 ms 2816 KB Output is correct
26 Correct 3 ms 2816 KB Output is correct
27 Correct 3 ms 2816 KB Output is correct
28 Correct 3 ms 2816 KB Output is correct

Subtask #4
20.0 / 20.0

# 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 3 ms 2816 KB Output is correct
7 Correct 3 ms 2816 KB Output is correct
8 Correct 3 ms 2816 KB Output is correct
9 Correct 3 ms 2816 KB Output is correct
10 Correct 69 ms 10348 KB Output is correct
11 Correct 87 ms 12016 KB Output is correct
12 Correct 88 ms 11760 KB Output is correct
13 Correct 96 ms 12396 KB Output is correct
14 Correct 77 ms 12524 KB Output is correct
15 Correct 2 ms 2816 KB Output is correct
16 Correct 3 ms 2816 KB Output is correct
17 Correct 3 ms 2816 KB Output is correct
18 Correct 3 ms 2688 KB Output is correct
19 Correct 2 ms 2688 KB Output is correct
20 Correct 3 ms 2816 KB Output is correct
21 Correct 3 ms 2816 KB Output is correct
22 Correct 3 ms 2816 KB Output is correct
23 Correct 3 ms 2816 KB Output is correct
24 Correct 12 ms 4032 KB Output is correct
25 Correct 92 ms 12268 KB Output is correct
26 Correct 99 ms 12396 KB Output is correct
27 Correct 92 ms 12268 KB Output is correct
28 Correct 86 ms 12268 KB Output is correct
29 Correct 89 ms 12144 KB Output is correct
30 Correct 81 ms 11244 KB Output is correct
31 Correct 99 ms 12400 KB Output is correct
32 Correct 92 ms 12396 KB Output is correct
33 Correct 76 ms 12396 KB Output is correct
34 Correct 91 ms 12268 KB Output is correct
35 Correct 3 ms 2816 KB Output is correct
36 Correct 3 ms 2816 KB Output is correct
37 Correct 3 ms 2816 KB Output is correct
38 Correct 3 ms 2816 KB Output is correct
39 Correct 3 ms 2816 KB Output is correct
40 Correct 3 ms 2816 KB Output is correct
41 Correct 3 ms 2816 KB Output is correct
42 Correct 3 ms 2816 KB Output is correct
43 Correct 3 ms 2816 KB Output is correct
44 Correct 3 ms 2816 KB Output is correct
45 Correct 110 ms 13928 KB Output is correct
46 Correct 90 ms 12268 KB Output is correct
47 Correct 90 ms 12268 KB Output is correct
48 Correct 90 ms 12720 KB Output is correct
49 Correct 96 ms 11624 KB Output is correct
50 Correct 72 ms 9324 KB Output is correct
51 Correct 93 ms 12396 KB Output is correct
52 Correct 139 ms 15592 KB Output is correct
53 Correct 152 ms 16232 KB Output is correct
54 Correct 160 ms 17636 KB Output is correct
55 Correct 74 ms 12268 KB Output is correct
56 Correct 137 ms 15996 KB Output is correct

Subtask #5
23.0 / 23.0

# 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 3 ms 2816 KB Output is correct
6 Correct 3 ms 2816 KB Output is correct
7 Correct 3 ms 2816 KB Output is correct
8 Correct 3 ms 2816 KB Output is correct
9 Correct 69 ms 10348 KB Output is correct
10 Correct 87 ms 12016 KB Output is correct
11 Correct 88 ms 11760 KB Output is correct
12 Correct 96 ms 12396 KB Output is correct
13 Correct 77 ms 12524 KB Output is correct
14 Correct 88 ms 10348 KB Output is correct
15 Correct 277 ms 13944 KB Output is correct
16 Correct 276 ms 13752 KB Output is correct
17 Correct 289 ms 14164 KB Output is correct
18 Correct 252 ms 13904 KB Output is correct
19 Correct 323 ms 14484 KB Output is correct
20 Correct 319 ms 14932 KB Output is correct
21 Correct 340 ms 14852 KB Output is correct
22 Correct 310 ms 14804 KB Output is correct
23 Correct 334 ms 14920 KB Output is correct
24 Correct 327 ms 14492 KB Output is correct
25 Correct 325 ms 14692 KB Output is correct
26 Correct 324 ms 14472 KB Output is correct
27 Correct 2 ms 2816 KB Output is correct
28 Correct 3 ms 2816 KB Output is correct
29 Correct 3 ms 2816 KB Output is correct
30 Correct 3 ms 2688 KB Output is correct
31 Correct 2 ms 2688 KB Output is correct
32 Correct 3 ms 2816 KB Output is correct
33 Correct 3 ms 2816 KB Output is correct
34 Correct 3 ms 2816 KB Output is correct
35 Correct 3 ms 2816 KB Output is correct
36 Correct 12 ms 4032 KB Output is correct
37 Correct 92 ms 12268 KB Output is correct
38 Correct 99 ms 12396 KB Output is correct
39 Correct 92 ms 12268 KB Output is correct
40 Correct 86 ms 12268 KB Output is correct
41 Correct 89 ms 12144 KB Output is correct
42 Correct 81 ms 11244 KB Output is correct
43 Correct 99 ms 12400 KB Output is correct
44 Correct 92 ms 12396 KB Output is correct
45 Correct 76 ms 12396 KB Output is correct
46 Correct 91 ms 12268 KB Output is correct
47 Correct 30 ms 4280 KB Output is correct
48 Correct 299 ms 14928 KB Output is correct
49 Correct 298 ms 15128 KB Output is correct
50 Correct 301 ms 14932 KB Output is correct
51 Correct 308 ms 14816 KB Output is correct
52 Correct 307 ms 14364 KB Output is correct
53 Correct 284 ms 12604 KB Output is correct
54 Correct 313 ms 15572 KB Output is correct
55 Correct 290 ms 14996 KB Output is correct
56 Correct 282 ms 14800 KB Output is correct
57 Correct 347 ms 15572 KB Output is correct

Subtask #6
27.0 / 27.0

# 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 3 ms 2816 KB Output is correct
7 Correct 3 ms 2816 KB Output is correct
8 Correct 3 ms 2816 KB Output is correct
9 Correct 3 ms 2816 KB Output is correct
10 Correct 69 ms 10348 KB Output is correct
11 Correct 87 ms 12016 KB Output is correct
12 Correct 88 ms 11760 KB Output is correct
13 Correct 96 ms 12396 KB Output is correct
14 Correct 77 ms 12524 KB Output is correct
15 Correct 88 ms 10348 KB Output is correct
16 Correct 277 ms 13944 KB Output is correct
17 Correct 276 ms 13752 KB Output is correct
18 Correct 289 ms 14164 KB Output is correct
19 Correct 252 ms 13904 KB Output is correct
20 Correct 323 ms 14484 KB Output is correct
21 Correct 319 ms 14932 KB Output is correct
22 Correct 340 ms 14852 KB Output is correct
23 Correct 310 ms 14804 KB Output is correct
24 Correct 334 ms 14920 KB Output is correct
25 Correct 327 ms 14492 KB Output is correct
26 Correct 325 ms 14692 KB Output is correct
27 Correct 324 ms 14472 KB Output is correct
28 Correct 2 ms 2816 KB Output is correct
29 Correct 3 ms 2816 KB Output is correct
30 Correct 3 ms 2816 KB Output is correct
31 Correct 3 ms 2688 KB Output is correct
32 Correct 2 ms 2688 KB Output is correct
33 Correct 3 ms 2816 KB Output is correct
34 Correct 3 ms 2816 KB Output is correct
35 Correct 3 ms 2816 KB Output is correct
36 Correct 3 ms 2816 KB Output is correct
37 Correct 12 ms 4032 KB Output is correct
38 Correct 92 ms 12268 KB Output is correct
39 Correct 99 ms 12396 KB Output is correct
40 Correct 92 ms 12268 KB Output is correct
41 Correct 86 ms 12268 KB Output is correct
42 Correct 89 ms 12144 KB Output is correct
43 Correct 81 ms 11244 KB Output is correct
44 Correct 99 ms 12400 KB Output is correct
45 Correct 92 ms 12396 KB Output is correct
46 Correct 76 ms 12396 KB Output is correct
47 Correct 91 ms 12268 KB Output is correct
48 Correct 30 ms 4280 KB Output is correct
49 Correct 299 ms 14928 KB Output is correct
50 Correct 298 ms 15128 KB Output is correct
51 Correct 301 ms 14932 KB Output is correct
52 Correct 308 ms 14816 KB Output is correct
53 Correct 307 ms 14364 KB Output is correct
54 Correct 284 ms 12604 KB Output is correct
55 Correct 313 ms 15572 KB Output is correct
56 Correct 290 ms 14996 KB Output is correct
57 Correct 282 ms 14800 KB Output is correct
58 Correct 347 ms 15572 KB Output is correct
59 Correct 146 ms 7736 KB Output is correct
60 Correct 295 ms 15048 KB Output is correct
61 Correct 290 ms 15012 KB Output is correct
62 Correct 301 ms 15568 KB Output is correct
63 Correct 254 ms 15316 KB Output is correct
64 Correct 3 ms 2816 KB Output is correct
65 Correct 3 ms 2816 KB Output is correct
66 Correct 3 ms 2816 KB Output is correct
67 Correct 3 ms 2816 KB Output is correct
68 Correct 3 ms 2816 KB Output is correct
69 Correct 3 ms 2816 KB Output is correct
70 Correct 3 ms 2816 KB Output is correct
71 Correct 3 ms 2816 KB Output is correct
72 Correct 3 ms 2816 KB Output is correct
73 Correct 3 ms 2816 KB Output is correct
74 Correct 110 ms 13928 KB Output is correct
75 Correct 90 ms 12268 KB Output is correct
76 Correct 90 ms 12268 KB Output is correct
77 Correct 90 ms 12720 KB Output is correct
78 Correct 96 ms 11624 KB Output is correct
79 Correct 72 ms 9324 KB Output is correct
80 Correct 93 ms 12396 KB Output is correct
81 Correct 139 ms 15592 KB Output is correct
82 Correct 152 ms 16232 KB Output is correct
83 Correct 160 ms 17636 KB Output is correct
84 Correct 74 ms 12268 KB Output is correct
85 Correct 137 ms 15996 KB Output is correct
86 Correct 117 ms 7076 KB Output is correct
87 Correct 326 ms 14932 KB Output is correct
88 Correct 304 ms 14912 KB Output is correct
89 Correct 405 ms 14988 KB Output is correct
90 Correct 380 ms 13544 KB Output is correct
91 Correct 401 ms 13484 KB Output is correct
92 Correct 424 ms 14284 KB Output is correct
93 Correct 481 ms 17952 KB Output is correct
94 Correct 479 ms 18628 KB Output is correct
95 Correct 383 ms 19432 KB Output is correct
96 Correct 284 ms 14932 KB Output is correct
97 Correct 453 ms 16936 KB Output is correct