oj.uz

Submission #398139

# Submission time Handle Problem Language Result Execution time Memory
398139 2021-05-03T19:14:23 Z ZikXewen Swapping Cities (APIO20_swap) C++17
100 / 100
 681 ms 57372 KB 
#include "swap.h"
#include <bits/stdc++.h>
using namespace std;
typedef tuple<int, int, int> ii;
const int X = 1e5 + 5, R = 1e9 + 5, L = 20;
int N, M, CT;
vector<ii> ed;
struct node{
	int nl, e1, e2, id, dp;
	node *pa[L], *ppa;
	node* fd(){return ppa? ppa = ppa -> fd() : this;}
	void ste(int u, int v){e1 = u, e2 = v;}
	void stp(node *u){pa[0] = ppa = u;}
	node(int u) : id(u), nl(), e1(u), e2(u), pa(), ppa(), dp() {}
} *tr[X << 1];
void un(int u, int v, int po){
	node *pu = tr[u] -> fd(), *pv = tr[v] -> fd();
	if(pu == pv){
		if(!pu -> nl) pu -> nl = po;
		return;
	}
	node *nw = tr[CT++] = new node(CT);
	pu -> stp(nw), pv -> stp(nw);
	if(pv -> nl or pu -> nl) return nw -> nl = po, void();
	if(u == pu -> e1 and v == pv -> e1) return nw -> ste(pu -> e2, pv -> e2), void();
	if(u == pu -> e1 and v == pv -> e2) return nw -> ste(pu -> e2, pv -> e1), void();
	if(u == pu -> e2 and v == pv -> e1) return nw -> ste(pu -> e1, pv -> e2), void();
	if(u == pu -> e2 and v == pv -> e2) return nw -> ste(pu -> e1, pv -> e1), void();
	nw -> nl = po;
}
void init(int _N, int _M, vector<int> U, vector<int> V, vector<int> W) {
	N = _N; M = _M;
	for(int i = 0; i < N; ++i) tr[CT++] = new node(i);
	for(int i = 0; i < M; ++i) ed.emplace_back(U[i], V[i], W[i]);
	sort(ed.begin(), ed.end(), [=](ii u, ii v){return get<2>(u) < get<2>(v);});
	for(auto [u, v, w]: ed) un(u, v, w);
	tr[CT - 1] -> dp = 1;
	for(int i = 1; i < L; ++i) for(int j = 0; j < CT; ++j) if(tr[j] -> pa[i - 1]) {
		tr[j] -> pa[i] = tr[j] -> pa[i - 1] -> pa[i - 1];
		if(tr[j] -> pa[i - 1] -> dp) tr[j] -> dp = tr[j] -> pa[i - 1] -> dp + (1 << (i - 1));
	}
}
int getMinimumFuelCapacity(int u, int v) {
	node *pu = tr[u], *pv = tr[v];
	if(pu -> dp < pv -> dp) swap(pu, pv);
	for(int i = L - 1; i >= 0; --i) if(pu -> pa[i] and pu -> pa[i] -> dp >= pv -> dp) pu = pu -> pa[i];
	if(pu != pv){
		for(int i = L - 1; i >= 0; --i) if(pu -> pa[i] != pv -> pa[i]) pu = pu -> pa[i], pv = pv -> pa[i];
		pu = pu -> pa[0];
	}
	if(pu -> nl) return pu -> nl;
	for(int i = L - 1; i >= 0; --i) if(pu -> pa[i] and !pu -> pa[i] -> nl) pu = pu -> pa[i];
	return pu -> pa[0]? pu -> pa[0] -> nl : -1;
}

Compilation message

swap.cpp: In constructor 'node::node(int)':
swap.cpp:9:18: warning: 'node::id' will be initialized after [-Wreorder]
    9 |  int nl, e1, e2, id, dp;
      |                  ^~
swap.cpp:9:6: warning:   'int node::nl' [-Wreorder]
    9 |  int nl, e1, e2, id, dp;
      |      ^~
swap.cpp:14:2: warning:   when initialized here [-Wreorder]
   14 |  node(int u) : id(u), nl(), e1(u), e2(u), pa(), ppa(), dp() {}
      |  ^~~~
swap.cpp:10:16: warning: 'node::ppa' will be initialized after [-Wreorder]
   10 |  node *pa[L], *ppa;
      |                ^~~
swap.cpp:9:22: warning:   'int node::dp' [-Wreorder]
    9 |  int nl, e1, e2, id, dp;
      |                      ^~
swap.cpp:14:2: warning:   when initialized here [-Wreorder]
   14 |  node(int u) : id(u), nl(), e1(u), e2(u), pa(), ppa(), dp() {}
      |  ^~~~
swap.cpp: In function 'void un(int, int, int)':
swap.cpp:22:18: warning: operation on 'CT' may be undefined [-Wsequence-point]
   22 |  node *nw = tr[CT++] = new node(CT);
      |                ~~^~

Subtask #1
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 1 ms 204 KB Output is correct
3 Correct 1 ms 204 KB Output is correct
4 Correct 1 ms 460 KB Output is correct
5 Correct 1 ms 716 KB Output is correct
6 Correct 1 ms 704 KB Output is correct
7 Correct 2 ms 716 KB Output is correct
8 Correct 2 ms 716 KB Output is correct
9 Correct 124 ms 37808 KB Output is correct
10 Correct 152 ms 46384 KB Output is correct
11 Correct 146 ms 45536 KB Output is correct
12 Correct 156 ms 48188 KB Output is correct
13 Correct 178 ms 48944 KB Output is correct
14 Correct 144 ms 38076 KB Output is correct
15 Correct 367 ms 50676 KB Output is correct
16 Correct 363 ms 49396 KB Output is correct
17 Correct 389 ms 52256 KB Output is correct
18 Correct 663 ms 52976 KB Output is correct
19 Correct 124 ms 12916 KB Output is correct
20 Correct 354 ms 51904 KB Output is correct
21 Correct 354 ms 50420 KB Output is correct
22 Correct 369 ms 53608 KB Output is correct
23 Correct 681 ms 54412 KB Output is correct

Subtask #2
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 1 ms 204 KB Output is correct
3 Correct 571 ms 50372 KB Output is correct
4 Correct 571 ms 52624 KB Output is correct
5 Correct 592 ms 51484 KB Output is correct
6 Correct 563 ms 52452 KB Output is correct
7 Correct 588 ms 52152 KB Output is correct
8 Correct 564 ms 50064 KB Output is correct
9 Correct 591 ms 51696 KB Output is correct
10 Correct 579 ms 49816 KB Output is correct

Subtask #3
17.0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 1 ms 204 KB Output is correct
3 Correct 1 ms 204 KB Output is correct
4 Correct 1 ms 460 KB Output is correct
5 Correct 1 ms 716 KB Output is correct
6 Correct 1 ms 704 KB Output is correct
7 Correct 2 ms 716 KB Output is correct
8 Correct 2 ms 716 KB Output is correct
9 Correct 1 ms 204 KB Output is correct
10 Correct 2 ms 700 KB Output is correct
11 Correct 1 ms 716 KB Output is correct
12 Correct 1 ms 716 KB Output is correct
13 Correct 1 ms 588 KB Output is correct
14 Correct 2 ms 588 KB Output is correct
15 Correct 2 ms 716 KB Output is correct
16 Correct 1 ms 716 KB Output is correct
17 Correct 1 ms 716 KB Output is correct
18 Correct 2 ms 716 KB Output is correct
19 Correct 2 ms 592 KB Output is correct
20 Correct 1 ms 716 KB Output is correct
21 Correct 2 ms 720 KB Output is correct
22 Correct 1 ms 460 KB Output is correct
23 Correct 1 ms 572 KB Output is correct
24 Correct 2 ms 716 KB Output is correct
25 Correct 2 ms 716 KB Output is correct
26 Correct 2 ms 716 KB Output is correct
27 Correct 1 ms 716 KB Output is correct
28 Correct 2 ms 716 KB Output is correct

Subtask #4
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 1 ms 204 KB Output is correct
3 Correct 1 ms 204 KB Output is correct
4 Correct 1 ms 204 KB Output is correct
5 Correct 1 ms 460 KB Output is correct
6 Correct 1 ms 716 KB Output is correct
7 Correct 1 ms 704 KB Output is correct
8 Correct 2 ms 716 KB Output is correct
9 Correct 2 ms 716 KB Output is correct
10 Correct 124 ms 37808 KB Output is correct
11 Correct 152 ms 46384 KB Output is correct
12 Correct 146 ms 45536 KB Output is correct
13 Correct 156 ms 48188 KB Output is correct
14 Correct 178 ms 48944 KB Output is correct
15 Correct 2 ms 700 KB Output is correct
16 Correct 1 ms 716 KB Output is correct
17 Correct 1 ms 716 KB Output is correct
18 Correct 1 ms 588 KB Output is correct
19 Correct 2 ms 588 KB Output is correct
20 Correct 2 ms 716 KB Output is correct
21 Correct 1 ms 716 KB Output is correct
22 Correct 1 ms 716 KB Output is correct
23 Correct 2 ms 716 KB Output is correct
24 Correct 2 ms 592 KB Output is correct
25 Correct 1 ms 716 KB Output is correct
26 Correct 2 ms 720 KB Output is correct
27 Correct 1 ms 460 KB Output is correct
28 Correct 1 ms 572 KB Output is correct
29 Correct 2 ms 716 KB Output is correct
30 Correct 2 ms 716 KB Output is correct
31 Correct 2 ms 716 KB Output is correct
32 Correct 1 ms 716 KB Output is correct
33 Correct 2 ms 716 KB Output is correct
34 Correct 16 ms 6800 KB Output is correct
35 Correct 155 ms 47912 KB Output is correct
36 Correct 157 ms 47796 KB Output is correct
37 Correct 154 ms 47748 KB Output is correct
38 Correct 164 ms 47288 KB Output is correct
39 Correct 156 ms 46868 KB Output is correct
40 Correct 145 ms 43044 KB Output is correct
41 Correct 154 ms 48164 KB Output is correct
42 Correct 152 ms 47804 KB Output is correct
43 Correct 169 ms 47796 KB Output is correct
44 Correct 170 ms 48188 KB Output is correct
45 Correct 208 ms 41812 KB Output is correct
46 Correct 153 ms 47800 KB Output is correct
47 Correct 161 ms 47676 KB Output is correct
48 Correct 194 ms 47288 KB Output is correct
49 Correct 70 ms 10160 KB Output is correct
50 Correct 60 ms 9888 KB Output is correct
51 Correct 162 ms 34428 KB Output is correct
52 Correct 211 ms 51596 KB Output is correct
53 Correct 240 ms 52664 KB Output is correct
54 Correct 231 ms 53560 KB Output is correct
55 Correct 169 ms 47924 KB Output is correct
56 Correct 258 ms 52212 KB Output is correct

Subtask #5
23.0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 1 ms 204 KB Output is correct
3 Correct 1 ms 204 KB Output is correct
4 Correct 1 ms 460 KB Output is correct
5 Correct 1 ms 716 KB Output is correct
6 Correct 1 ms 704 KB Output is correct
7 Correct 2 ms 716 KB Output is correct
8 Correct 2 ms 716 KB Output is correct
9 Correct 124 ms 37808 KB Output is correct
10 Correct 152 ms 46384 KB Output is correct
11 Correct 146 ms 45536 KB Output is correct
12 Correct 156 ms 48188 KB Output is correct
13 Correct 178 ms 48944 KB Output is correct
14 Correct 144 ms 38076 KB Output is correct
15 Correct 367 ms 50676 KB Output is correct
16 Correct 363 ms 49396 KB Output is correct
17 Correct 389 ms 52256 KB Output is correct
18 Correct 663 ms 52976 KB Output is correct
19 Correct 571 ms 50372 KB Output is correct
20 Correct 571 ms 52624 KB Output is correct
21 Correct 592 ms 51484 KB Output is correct
22 Correct 563 ms 52452 KB Output is correct
23 Correct 588 ms 52152 KB Output is correct
24 Correct 564 ms 50064 KB Output is correct
25 Correct 591 ms 51696 KB Output is correct
26 Correct 579 ms 49816 KB Output is correct
27 Correct 2 ms 700 KB Output is correct
28 Correct 1 ms 716 KB Output is correct
29 Correct 1 ms 716 KB Output is correct
30 Correct 1 ms 588 KB Output is correct
31 Correct 2 ms 588 KB Output is correct
32 Correct 2 ms 716 KB Output is correct
33 Correct 1 ms 716 KB Output is correct
34 Correct 1 ms 716 KB Output is correct
35 Correct 2 ms 716 KB Output is correct
36 Correct 16 ms 6800 KB Output is correct
37 Correct 155 ms 47912 KB Output is correct
38 Correct 157 ms 47796 KB Output is correct
39 Correct 154 ms 47748 KB Output is correct
40 Correct 164 ms 47288 KB Output is correct
41 Correct 156 ms 46868 KB Output is correct
42 Correct 145 ms 43044 KB Output is correct
43 Correct 154 ms 48164 KB Output is correct
44 Correct 152 ms 47804 KB Output is correct
45 Correct 169 ms 47796 KB Output is correct
46 Correct 170 ms 48188 KB Output is correct
47 Correct 26 ms 6676 KB Output is correct
48 Correct 356 ms 52668 KB Output is correct
49 Correct 332 ms 52780 KB Output is correct
50 Correct 319 ms 52640 KB Output is correct
51 Correct 312 ms 52620 KB Output is correct
52 Correct 290 ms 49640 KB Output is correct
53 Correct 250 ms 37800 KB Output is correct
54 Correct 353 ms 53664 KB Output is correct
55 Correct 372 ms 52768 KB Output is correct
56 Correct 611 ms 52768 KB Output is correct
57 Correct 347 ms 53664 KB Output is correct

Subtask #6
27.0 / 27.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 1 ms 204 KB Output is correct
3 Correct 1 ms 204 KB Output is correct
4 Correct 1 ms 204 KB Output is correct
5 Correct 1 ms 460 KB Output is correct
6 Correct 1 ms 716 KB Output is correct
7 Correct 1 ms 704 KB Output is correct
8 Correct 2 ms 716 KB Output is correct
9 Correct 2 ms 716 KB Output is correct
10 Correct 124 ms 37808 KB Output is correct
11 Correct 152 ms 46384 KB Output is correct
12 Correct 146 ms 45536 KB Output is correct
13 Correct 156 ms 48188 KB Output is correct
14 Correct 178 ms 48944 KB Output is correct
15 Correct 144 ms 38076 KB Output is correct
16 Correct 367 ms 50676 KB Output is correct
17 Correct 363 ms 49396 KB Output is correct
18 Correct 389 ms 52256 KB Output is correct
19 Correct 663 ms 52976 KB Output is correct
20 Correct 571 ms 50372 KB Output is correct
21 Correct 571 ms 52624 KB Output is correct
22 Correct 592 ms 51484 KB Output is correct
23 Correct 563 ms 52452 KB Output is correct
24 Correct 588 ms 52152 KB Output is correct
25 Correct 564 ms 50064 KB Output is correct
26 Correct 591 ms 51696 KB Output is correct
27 Correct 579 ms 49816 KB Output is correct
28 Correct 2 ms 700 KB Output is correct
29 Correct 1 ms 716 KB Output is correct
30 Correct 1 ms 716 KB Output is correct
31 Correct 1 ms 588 KB Output is correct
32 Correct 2 ms 588 KB Output is correct
33 Correct 2 ms 716 KB Output is correct
34 Correct 1 ms 716 KB Output is correct
35 Correct 1 ms 716 KB Output is correct
36 Correct 2 ms 716 KB Output is correct
37 Correct 16 ms 6800 KB Output is correct
38 Correct 155 ms 47912 KB Output is correct
39 Correct 157 ms 47796 KB Output is correct
40 Correct 154 ms 47748 KB Output is correct
41 Correct 164 ms 47288 KB Output is correct
42 Correct 156 ms 46868 KB Output is correct
43 Correct 145 ms 43044 KB Output is correct
44 Correct 154 ms 48164 KB Output is correct
45 Correct 152 ms 47804 KB Output is correct
46 Correct 169 ms 47796 KB Output is correct
47 Correct 170 ms 48188 KB Output is correct
48 Correct 26 ms 6676 KB Output is correct
49 Correct 356 ms 52668 KB Output is correct
50 Correct 332 ms 52780 KB Output is correct
51 Correct 319 ms 52640 KB Output is correct
52 Correct 312 ms 52620 KB Output is correct
53 Correct 290 ms 49640 KB Output is correct
54 Correct 250 ms 37800 KB Output is correct
55 Correct 353 ms 53664 KB Output is correct
56 Correct 372 ms 52768 KB Output is correct
57 Correct 611 ms 52768 KB Output is correct
58 Correct 347 ms 53664 KB Output is correct
59 Correct 124 ms 12916 KB Output is correct
60 Correct 354 ms 51904 KB Output is correct
61 Correct 354 ms 50420 KB Output is correct
62 Correct 369 ms 53608 KB Output is correct
63 Correct 681 ms 54412 KB Output is correct
64 Correct 2 ms 592 KB Output is correct
65 Correct 1 ms 716 KB Output is correct
66 Correct 2 ms 720 KB Output is correct
67 Correct 1 ms 460 KB Output is correct
68 Correct 1 ms 572 KB Output is correct
69 Correct 2 ms 716 KB Output is correct
70 Correct 2 ms 716 KB Output is correct
71 Correct 2 ms 716 KB Output is correct
72 Correct 1 ms 716 KB Output is correct
73 Correct 2 ms 716 KB Output is correct
74 Correct 208 ms 41812 KB Output is correct
75 Correct 153 ms 47800 KB Output is correct
76 Correct 161 ms 47676 KB Output is correct
77 Correct 194 ms 47288 KB Output is correct
78 Correct 70 ms 10160 KB Output is correct
79 Correct 60 ms 9888 KB Output is correct
80 Correct 162 ms 34428 KB Output is correct
81 Correct 211 ms 51596 KB Output is correct
82 Correct 240 ms 52664 KB Output is correct
83 Correct 231 ms 53560 KB Output is correct
84 Correct 169 ms 47924 KB Output is correct
85 Correct 258 ms 52212 KB Output is correct
86 Correct 109 ms 17260 KB Output is correct
87 Correct 312 ms 52744 KB Output is correct
88 Correct 314 ms 52772 KB Output is correct
89 Correct 456 ms 49196 KB Output is correct
90 Correct 176 ms 14128 KB Output is correct
91 Correct 207 ms 17516 KB Output is correct
92 Correct 404 ms 39396 KB Output is correct
93 Correct 364 ms 56200 KB Output is correct
94 Correct 447 ms 57364 KB Output is correct
95 Correct 436 ms 57372 KB Output is correct
96 Correct 617 ms 52892 KB Output is correct
97 Correct 499 ms 55284 KB Output is correct