oj.uz

Submission #981910

# Submission time Handle Problem Language Result Execution time Memory
981910 2024-05-13T16:19:11 Z vjudge1 Swapping Cities (APIO20_swap) C++17
50 / 100
 2000 ms 31728 KB 
#include "swap.h"
#include <bits/stdc++.h>
#include <vector>
using namespace std;
long long n, m, i, j, sz[200001], p[200001], d[200001], mx[200001], szm[200001], kek[200001];
multiset<pair<long long, long long>> ms;
int mxx;
bool st1, st2;
vector<pair<long long, long long>> g[200001];
vector<pair<long long, pair<long long, long long>>> gg;

long long get(long long x) {
	return x == p[x] ? x : p[x] = get(p[x]);
}

void merge(long long xx, long long yy) {
	long long x = get(xx), y = get(yy);
	mx[x] = max({mx[x], d[x], d[xx]});
	mx[y] = max({mx[y], d[y], d[yy]});
	mx[x] = max(mx[x], mx[y]);
	mx[y] = max(mx[y], mx[x]);
	szm[x]++;
	if (x == y) return;
	if (sz[x] < sz[y]) swap(x, y);
	p[y] = x;
	sz[x] += sz[y];
	szm[x] += szm[y];
	mx[x] = max(mx[x], mx[y]);
	mx[y] = max(mx[y], mx[x]);
}

void init(int N, int M,
          std::vector<int> U, std::vector<int> V, std::vector<int> W) {
	n = N, m = M;
	st2 = 1;
	for (long long i = 0; i < M; i++) {
		g[U[i]].push_back({V[i], W[i]});
		g[V[i]].push_back({U[i], W[i]});
		if (U[i]) {
			st2 = 0;
		}
		gg.push_back({W[i], {U[i], V[i]}});
		kek[V[i]] = W[i];
		mxx = max(mxx, W[i]);
	}
	if (st2) {
		for (long long i = 0; i < N; i++) ms.insert({kek[i], i});
	}
	st1 = 1;
	for (long long i = 0; i < N; i++) {
		if (g[i].size() > 2) st1 = 0;
	}
	sort(gg.begin(), gg.end());
}

bool check(long long md, long long x, long long y) {
	if (md < 0 || md >= gg.size()) return 0;
	for (long long i = 0; i < n; i++) sz[i] = 1, p[i] = i, d[i] = mx[i] = szm[i] = 0;
	for (long long i = 0; i <= md; i++) {
		d[gg[i].second.first]++;
		d[gg[i].second.second]++;
		merge(gg[i].second.first, gg[i].second.second);
	}
	if (get(x) != get(y)) return 0;
	if (mx[get(x)] <= 2 && szm[get(x)] < sz[get(x)]) return 0;
	return 1;
}

int getMinimumFuelCapacity(int X, int Y) {
	if (st1) {
		if (n == m) return mxx;
		return -1;
	}
	if (st2) {
		if (ms.size() > 2) {
			ms.erase({kek[X], X});
			ms.erase({kek[Y], Y});
			long long ans = max({kek[X], kek[Y], (gg[2].first)});
			ms.insert({kek[X], X});
			ms.insert({kek[Y], Y});
			return ans;
		}
		return -1;
	}
	long long l = 0, r = (int)gg.size(), md, ans = 0;
	while (l <= r) {
		md = (l + r) / 2;
		if (check(md, X, Y)) ans = md, r = md - 1;
		else l = md + 1;
	}
	if (!check(ans, X, Y)) return -1;
  return gg[ans].first;
}

Compilation message

swap.cpp: In function 'bool check(long long int, long long int, long long int)':
swap.cpp:57:19: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<std::pair<long long int, std::pair<long long int, long long int> > >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   57 |  if (md < 0 || md >= gg.size()) return 0;
      |                ~~~^~~~~~~~~~~~

Subtask #1
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 6748 KB Output is correct
2 Correct 1 ms 6748 KB Output is correct
3 Correct 1 ms 6748 KB Output is correct
4 Correct 2 ms 6748 KB Output is correct
5 Correct 2 ms 6748 KB Output is correct
6 Correct 2 ms 6748 KB Output is correct
7 Correct 2 ms 6744 KB Output is correct
8 Correct 2 ms 6744 KB Output is correct
9 Correct 36 ms 16316 KB Output is correct
10 Correct 44 ms 16128 KB Output is correct
11 Correct 46 ms 16388 KB Output is correct
12 Correct 47 ms 16652 KB Output is correct
13 Correct 51 ms 16644 KB Output is correct
14 Correct 42 ms 16388 KB Output is correct
15 Correct 86 ms 18320 KB Output is correct
16 Correct 84 ms 17720 KB Output is correct
17 Correct 86 ms 18540 KB Output is correct
18 Correct 93 ms 18232 KB Output is correct
19 Correct 42 ms 11660 KB Output is correct
20 Correct 85 ms 19392 KB Output is correct
21 Correct 96 ms 19252 KB Output is correct
22 Correct 92 ms 19748 KB Output is correct
23 Correct 94 ms 20336 KB Output is correct

Subtask #2
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 6748 KB Output is correct
2 Correct 1 ms 6748 KB Output is correct
3 Correct 256 ms 25048 KB Output is correct
4 Correct 263 ms 25060 KB Output is correct
5 Correct 267 ms 25704 KB Output is correct
6 Correct 254 ms 29584 KB Output is correct
7 Correct 261 ms 29096 KB Output is correct
8 Correct 306 ms 28440 KB Output is correct
9 Correct 262 ms 28800 KB Output is correct
10 Correct 284 ms 28104 KB Output is correct

Subtask #3
17.0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 6748 KB Output is correct
2 Correct 1 ms 6748 KB Output is correct
3 Correct 1 ms 6748 KB Output is correct
4 Correct 2 ms 6748 KB Output is correct
5 Correct 2 ms 6748 KB Output is correct
6 Correct 2 ms 6748 KB Output is correct
7 Correct 2 ms 6744 KB Output is correct
8 Correct 2 ms 6744 KB Output is correct
9 Correct 2 ms 12892 KB Output is correct
10 Correct 3 ms 12892 KB Output is correct
11 Correct 3 ms 12892 KB Output is correct
12 Correct 4 ms 12892 KB Output is correct
13 Correct 3 ms 12892 KB Output is correct
14 Correct 3 ms 12892 KB Output is correct
15 Correct 3 ms 12892 KB Output is correct
16 Correct 3 ms 12892 KB Output is correct
17 Correct 3 ms 12892 KB Output is correct
18 Correct 3 ms 12892 KB Output is correct
19 Correct 3 ms 13036 KB Output is correct
20 Correct 3 ms 12892 KB Output is correct
21 Correct 3 ms 12892 KB Output is correct
22 Correct 3 ms 12892 KB Output is correct
23 Correct 3 ms 12892 KB Output is correct
24 Correct 4 ms 12892 KB Output is correct
25 Correct 4 ms 13144 KB Output is correct
26 Correct 4 ms 12892 KB Output is correct
27 Correct 3 ms 12892 KB Output is correct
28 Correct 3 ms 12928 KB Output is correct

Subtask #4
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 12892 KB Output is correct
2 Correct 1 ms 6748 KB Output is correct
3 Correct 1 ms 6748 KB Output is correct
4 Correct 1 ms 6748 KB Output is correct
5 Correct 2 ms 6748 KB Output is correct
6 Correct 2 ms 6748 KB Output is correct
7 Correct 2 ms 6748 KB Output is correct
8 Correct 2 ms 6744 KB Output is correct
9 Correct 2 ms 6744 KB Output is correct
10 Correct 36 ms 16316 KB Output is correct
11 Correct 44 ms 16128 KB Output is correct
12 Correct 46 ms 16388 KB Output is correct
13 Correct 47 ms 16652 KB Output is correct
14 Correct 51 ms 16644 KB Output is correct
15 Correct 3 ms 12892 KB Output is correct
16 Correct 3 ms 12892 KB Output is correct
17 Correct 4 ms 12892 KB Output is correct
18 Correct 3 ms 12892 KB Output is correct
19 Correct 3 ms 12892 KB Output is correct
20 Correct 3 ms 12892 KB Output is correct
21 Correct 3 ms 12892 KB Output is correct
22 Correct 3 ms 12892 KB Output is correct
23 Correct 3 ms 12892 KB Output is correct
24 Correct 3 ms 13036 KB Output is correct
25 Correct 3 ms 12892 KB Output is correct
26 Correct 3 ms 12892 KB Output is correct
27 Correct 3 ms 12892 KB Output is correct
28 Correct 3 ms 12892 KB Output is correct
29 Correct 4 ms 12892 KB Output is correct
30 Correct 4 ms 13144 KB Output is correct
31 Correct 4 ms 12892 KB Output is correct
32 Correct 3 ms 12892 KB Output is correct
33 Correct 3 ms 12928 KB Output is correct
34 Correct 13 ms 14232 KB Output is correct
35 Correct 363 ms 22952 KB Output is correct
36 Correct 334 ms 22900 KB Output is correct
37 Correct 346 ms 22456 KB Output is correct
38 Correct 337 ms 22136 KB Output is correct
39 Correct 322 ms 22404 KB Output is correct
40 Correct 315 ms 21628 KB Output is correct
41 Correct 359 ms 22304 KB Output is correct
42 Correct 325 ms 22816 KB Output is correct
43 Correct 192 ms 22476 KB Output is correct
44 Correct 341 ms 23200 KB Output is correct
45 Correct 321 ms 27688 KB Output is correct
46 Correct 326 ms 22452 KB Output is correct
47 Correct 344 ms 22472 KB Output is correct
48 Correct 289 ms 23448 KB Output is correct
49 Correct 71 ms 28284 KB Output is correct
50 Correct 66 ms 23816 KB Output is correct
51 Correct 208 ms 24600 KB Output is correct
52 Correct 412 ms 27672 KB Output is correct
53 Correct 345 ms 29124 KB Output is correct
54 Correct 403 ms 31728 KB Output is correct
55 Correct 218 ms 22376 KB Output is correct
56 Correct 414 ms 29468 KB Output is correct

Subtask #5
0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 6748 KB Output is correct
2 Correct 1 ms 6748 KB Output is correct
3 Correct 1 ms 6748 KB Output is correct
4 Correct 2 ms 6748 KB Output is correct
5 Correct 2 ms 6748 KB Output is correct
6 Correct 2 ms 6748 KB Output is correct
7 Correct 2 ms 6744 KB Output is correct
8 Correct 2 ms 6744 KB Output is correct
9 Correct 36 ms 16316 KB Output is correct
10 Correct 44 ms 16128 KB Output is correct
11 Correct 46 ms 16388 KB Output is correct
12 Correct 47 ms 16652 KB Output is correct
13 Correct 51 ms 16644 KB Output is correct
14 Correct 42 ms 16388 KB Output is correct
15 Correct 86 ms 18320 KB Output is correct
16 Correct 84 ms 17720 KB Output is correct
17 Correct 86 ms 18540 KB Output is correct
18 Correct 93 ms 18232 KB Output is correct
19 Correct 256 ms 25048 KB Output is correct
20 Correct 263 ms 25060 KB Output is correct
21 Correct 267 ms 25704 KB Output is correct
22 Correct 254 ms 29584 KB Output is correct
23 Correct 261 ms 29096 KB Output is correct
24 Correct 306 ms 28440 KB Output is correct
25 Correct 262 ms 28800 KB Output is correct
26 Correct 284 ms 28104 KB Output is correct
27 Correct 3 ms 12892 KB Output is correct
28 Correct 3 ms 12892 KB Output is correct
29 Correct 4 ms 12892 KB Output is correct
30 Correct 3 ms 12892 KB Output is correct
31 Correct 3 ms 12892 KB Output is correct
32 Correct 3 ms 12892 KB Output is correct
33 Correct 3 ms 12892 KB Output is correct
34 Correct 3 ms 12892 KB Output is correct
35 Correct 3 ms 12892 KB Output is correct
36 Correct 13 ms 14232 KB Output is correct
37 Correct 363 ms 22952 KB Output is correct
38 Correct 334 ms 22900 KB Output is correct
39 Correct 346 ms 22456 KB Output is correct
40 Correct 337 ms 22136 KB Output is correct
41 Correct 322 ms 22404 KB Output is correct
42 Correct 315 ms 21628 KB Output is correct
43 Correct 359 ms 22304 KB Output is correct
44 Correct 325 ms 22816 KB Output is correct
45 Correct 192 ms 22476 KB Output is correct
46 Correct 341 ms 23200 KB Output is correct
47 Execution timed out 2045 ms 14992 KB Time limit exceeded
48 Halted 0 ms 0 KB -

Subtask #6
0 / 27.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 12892 KB Output is correct
2 Correct 1 ms 6748 KB Output is correct
3 Correct 1 ms 6748 KB Output is correct
4 Correct 1 ms 6748 KB Output is correct
5 Correct 2 ms 6748 KB Output is correct
6 Correct 2 ms 6748 KB Output is correct
7 Correct 2 ms 6748 KB Output is correct
8 Correct 2 ms 6744 KB Output is correct
9 Correct 2 ms 6744 KB Output is correct
10 Correct 36 ms 16316 KB Output is correct
11 Correct 44 ms 16128 KB Output is correct
12 Correct 46 ms 16388 KB Output is correct
13 Correct 47 ms 16652 KB Output is correct
14 Correct 51 ms 16644 KB Output is correct
15 Correct 42 ms 16388 KB Output is correct
16 Correct 86 ms 18320 KB Output is correct
17 Correct 84 ms 17720 KB Output is correct
18 Correct 86 ms 18540 KB Output is correct
19 Correct 93 ms 18232 KB Output is correct
20 Correct 256 ms 25048 KB Output is correct
21 Correct 263 ms 25060 KB Output is correct
22 Correct 267 ms 25704 KB Output is correct
23 Correct 254 ms 29584 KB Output is correct
24 Correct 261 ms 29096 KB Output is correct
25 Correct 306 ms 28440 KB Output is correct
26 Correct 262 ms 28800 KB Output is correct
27 Correct 284 ms 28104 KB Output is correct
28 Correct 3 ms 12892 KB Output is correct
29 Correct 3 ms 12892 KB Output is correct
30 Correct 4 ms 12892 KB Output is correct
31 Correct 3 ms 12892 KB Output is correct
32 Correct 3 ms 12892 KB Output is correct
33 Correct 3 ms 12892 KB Output is correct
34 Correct 3 ms 12892 KB Output is correct
35 Correct 3 ms 12892 KB Output is correct
36 Correct 3 ms 12892 KB Output is correct
37 Correct 13 ms 14232 KB Output is correct
38 Correct 363 ms 22952 KB Output is correct
39 Correct 334 ms 22900 KB Output is correct
40 Correct 346 ms 22456 KB Output is correct
41 Correct 337 ms 22136 KB Output is correct
42 Correct 322 ms 22404 KB Output is correct
43 Correct 315 ms 21628 KB Output is correct
44 Correct 359 ms 22304 KB Output is correct
45 Correct 325 ms 22816 KB Output is correct
46 Correct 192 ms 22476 KB Output is correct
47 Correct 341 ms 23200 KB Output is correct
48 Execution timed out 2045 ms 14992 KB Time limit exceeded
49 Halted 0 ms 0 KB -