oj.uz

Submission #427563

# Submission time Handle Problem Language Result Execution time Memory
427563 2021-06-14T17:14:47 Z Tangent Simurgh (IOI17_simurgh) C++17
30 / 100
 158 ms 2612 KB 
#include "simurgh.h"
#include "bits/stdc++.h"

using namespace std;

typedef long long ll;
typedef pair<int, int> pii;
typedef pair<ll, ll> pll;
typedef vector<int> vii;
typedef vector<ll> vll;
typedef vector<pii> vpii;
typedef vector<pll> vpll;
typedef vector<vii> vvii;
typedef vector<vll> vvll;
typedef vector<vpii> vvpii;
typedef vector<vpll> vvpll;

#define ffor(i, a, b) for (ll i = (a); i < (ll)(b); i++)
#define fford(i, a, b) for (ll i = (a); i > (ll)(b); i--)
#define rep(i, n) ffor(i, 0, n)
#define forin(x, a) for (auto &x: a)
#define all(a) a.begin(), a.end()

std::vector<int> find_roads(int n, std::vector<int> u, std::vector<int> v) {
	int m = u.size();
	vii seen(m);
	rep(i, m) {
		if (!seen[i]) {
			vii curr;
			vii parent(n, -1);
			
			function<int(int)> root;
			root = [&](int x) {
				if (parent[x] < 0) {
					return x;
				}
				return parent[x] = root(parent[x]);
			};
			
			vii query;
			rep(j, m) {
				int ru = root(u[j]), rv = root(v[j]);
				if (ru == rv) {
					continue;
				}
				if ((root(u[i]) == ru && root(v[i]) == rv) || (root(u[i]) == rv && root(v[i]) == ru)) {
					curr.emplace_back(j);
					seen[j] = 1;
					continue;
				}
				if (parent[ru] < parent[rv]) {
					swap(ru, rv);
				}
				parent[rv] += parent[ru];
				parent[ru] = rv;
				query.emplace_back(j);
			}

			if (curr.size() == 1) {
				seen[curr[0]] = 2;
				continue;
			}
			vii ans;
			int amax = 0;
			forin(x, curr) {
				query.emplace_back(x);
				ans.emplace_back(count_common_roads(query));
				amax = max(amax, ans.back());
				query.pop_back();
			}
			rep(j, curr.size()) {
				if (ans[j] == amax) {
					seen[curr[j]] = 2;
				}
			}
		}
	}
	vii res;
	rep(i, m) {
		if (seen[i] == 2) {
			res.emplace_back(i);
		}
	}
	return res;
}

Subtask #1
13.0 / 13.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB correct
2 Correct 1 ms 204 KB correct
3 Correct 1 ms 204 KB correct
4 Correct 1 ms 204 KB correct
5 Correct 1 ms 204 KB correct
6 Correct 1 ms 204 KB correct
7 Correct 1 ms 204 KB correct
8 Correct 1 ms 204 KB correct
9 Correct 1 ms 204 KB correct
10 Correct 1 ms 204 KB correct
11 Correct 1 ms 204 KB correct
12 Correct 1 ms 204 KB correct
13 Correct 1 ms 292 KB correct

Subtask #2
17.0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB correct
2 Correct 1 ms 204 KB correct
3 Correct 1 ms 204 KB correct
4 Correct 1 ms 204 KB correct
5 Correct 1 ms 204 KB correct
6 Correct 1 ms 204 KB correct
7 Correct 1 ms 204 KB correct
8 Correct 1 ms 204 KB correct
9 Correct 1 ms 204 KB correct
10 Correct 1 ms 204 KB correct
11 Correct 1 ms 204 KB correct
12 Correct 1 ms 204 KB correct
13 Correct 1 ms 292 KB correct
14 Correct 14 ms 332 KB correct
15 Correct 12 ms 344 KB correct
16 Correct 10 ms 332 KB correct
17 Correct 9 ms 204 KB correct
18 Correct 4 ms 204 KB correct
19 Correct 10 ms 336 KB correct
20 Correct 12 ms 296 KB correct
21 Correct 9 ms 336 KB correct
22 Correct 5 ms 300 KB correct
23 Correct 5 ms 296 KB correct
24 Correct 5 ms 204 KB correct
25 Correct 1 ms 204 KB correct
26 Correct 5 ms 204 KB correct
27 Correct 6 ms 204 KB correct
28 Correct 2 ms 204 KB correct
29 Correct 1 ms 204 KB correct
30 Correct 6 ms 204 KB correct
31 Correct 7 ms 296 KB correct
32 Correct 8 ms 204 KB correct
33 Correct 8 ms 316 KB correct

Subtask #3
0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB correct
2 Correct 1 ms 204 KB correct
3 Correct 1 ms 204 KB correct
4 Correct 1 ms 204 KB correct
5 Correct 1 ms 204 KB correct
6 Correct 1 ms 204 KB correct
7 Correct 1 ms 204 KB correct
8 Correct 1 ms 204 KB correct
9 Correct 1 ms 204 KB correct
10 Correct 1 ms 204 KB correct
11 Correct 1 ms 204 KB correct
12 Correct 1 ms 204 KB correct
13 Correct 1 ms 292 KB correct
14 Correct 14 ms 332 KB correct
15 Correct 12 ms 344 KB correct
16 Correct 10 ms 332 KB correct
17 Correct 9 ms 204 KB correct
18 Correct 4 ms 204 KB correct
19 Correct 10 ms 336 KB correct
20 Correct 12 ms 296 KB correct
21 Correct 9 ms 336 KB correct
22 Correct 5 ms 300 KB correct
23 Correct 5 ms 296 KB correct
24 Correct 5 ms 204 KB correct
25 Correct 1 ms 204 KB correct
26 Correct 5 ms 204 KB correct
27 Correct 6 ms 204 KB correct
28 Correct 2 ms 204 KB correct
29 Correct 1 ms 204 KB correct
30 Correct 6 ms 204 KB correct
31 Correct 7 ms 296 KB correct
32 Correct 8 ms 204 KB correct
33 Correct 8 ms 316 KB correct
34 Incorrect 158 ms 1108 KB WA in grader: NO
35 Halted 0 ms 0 KB -

Subtask #4
0 / 19.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB correct
2 Correct 1 ms 204 KB correct
3 Incorrect 133 ms 2612 KB WA in grader: NO
4 Halted 0 ms 0 KB -

Subtask #5
0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB correct
2 Correct 1 ms 204 KB correct
3 Correct 1 ms 204 KB correct
4 Correct 1 ms 204 KB correct
5 Correct 1 ms 204 KB correct
6 Correct 1 ms 204 KB correct
7 Correct 1 ms 204 KB correct
8 Correct 1 ms 204 KB correct
9 Correct 1 ms 204 KB correct
10 Correct 1 ms 204 KB correct
11 Correct 1 ms 204 KB correct
12 Correct 1 ms 204 KB correct
13 Correct 1 ms 292 KB correct
14 Correct 14 ms 332 KB correct
15 Correct 12 ms 344 KB correct
16 Correct 10 ms 332 KB correct
17 Correct 9 ms 204 KB correct
18 Correct 4 ms 204 KB correct
19 Correct 10 ms 336 KB correct
20 Correct 12 ms 296 KB correct
21 Correct 9 ms 336 KB correct
22 Correct 5 ms 300 KB correct
23 Correct 5 ms 296 KB correct
24 Correct 5 ms 204 KB correct
25 Correct 1 ms 204 KB correct
26 Correct 5 ms 204 KB correct
27 Correct 6 ms 204 KB correct
28 Correct 2 ms 204 KB correct
29 Correct 1 ms 204 KB correct
30 Correct 6 ms 204 KB correct
31 Correct 7 ms 296 KB correct
32 Correct 8 ms 204 KB correct
33 Correct 8 ms 316 KB correct
34 Incorrect 158 ms 1108 KB WA in grader: NO
35 Halted 0 ms 0 KB -