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Submission #826381

# Submission time Handle Problem Language Result Execution time Memory
826381 2023-08-15T13:53:58 Z OAleksa Monthly railway pass (LMIO18_menesinis_bilietas) C++14
100 / 100
 425 ms 62868 KB 
#include <bits/stdc++.h>
#define f first
#define s second
using namespace std; 
#define int long long
const int maxn = 5e5 + 69;
vector<int> p(maxn), sz(maxn);
vector<int> deg(maxn);
int find_set(int v) {
	if(p[v] == v)
		return v;
	return p[v] = find_set(p[v]);
}

void unite(int a, int b) {
	a = find_set(a);
	b = find_set(b);
	if(a != b) {
		if(sz[a] < sz[b])	
			swap(a, b);
		p[b] = a;
		sz[a] += sz[b];
	}
}

signed main()
{
	ios_base::sync_with_stdio(false);
	cin.tie(0);
	cout.tie(0);
	int tt = 1;
	//cin >> tt;
	while(tt--) {
		int n, m;
		cin >> n >> m;
		vector<pair<int, int>> edges;
		for(int i = 1;i <= n;i++) {
			p[i] = i;
			sz[i] = 1;
		}
		for(int i = 0;i < m;i++) {
			int a, b;
			char c;
			cin >> a >> b >> c;
			if(c == 'T') 
				unite(a, b);
			else 
				edges.push_back({a, b});
		}
		set<int> kurac;
		for(int i = 1;i <= n;i++) 
			kurac.insert(find_set(i));
		int c = kurac.size();
		int ans = 0;
		set<pair<int, int>> bio;
		for(auto x : edges) {
			int a = find_set(x.f);
			int b = find_set(x.s);
			if(a > b)
				swap(a, b);
			if(bio.count({a, b}) || a == b)
				continue;
			else {
				bio.insert({a, b});
				deg[a]++;
				deg[b]++;
			}
		}
		for(auto x : kurac)
			ans += (deg[x] >= c - 1 ? sz[x] : 0);
		if(c == 1)
			ans = n;
		cout << ans;
	}
   return 0;
}

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 81 ms 12064 KB Output is correct
2 Correct 4 ms 11988 KB Output is correct
3 Correct 4 ms 11988 KB Output is correct
4 Correct 92 ms 34108 KB Output is correct
5 Correct 6 ms 12628 KB Output is correct
6 Correct 27 ms 11988 KB Output is correct

Subtask #2
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 92 ms 34108 KB Output is correct
2 Correct 6 ms 12628 KB Output is correct
3 Correct 4 ms 11988 KB Output is correct
4 Correct 4 ms 12116 KB Output is correct
5 Correct 7 ms 12580 KB Output is correct
6 Correct 254 ms 39960 KB Output is correct
7 Correct 425 ms 62868 KB Output is correct
8 Correct 12 ms 13912 KB Output is correct
9 Correct 20 ms 14980 KB Output is correct

Subtask #3
30.0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 11988 KB Output is correct
2 Correct 4 ms 11988 KB Output is correct
3 Correct 4 ms 11988 KB Output is correct
4 Correct 4 ms 12116 KB Output is correct
5 Correct 7 ms 12580 KB Output is correct
6 Correct 4 ms 11988 KB Output is correct
7 Correct 4 ms 11988 KB Output is correct
8 Correct 5 ms 12116 KB Output is correct
9 Correct 5 ms 12244 KB Output is correct
10 Correct 6 ms 12388 KB Output is correct
11 Correct 7 ms 12200 KB Output is correct
12 Correct 4 ms 12080 KB Output is correct
13 Correct 4 ms 11988 KB Output is correct
14 Correct 7 ms 12376 KB Output is correct
15 Correct 4 ms 11988 KB Output is correct
16 Correct 4 ms 12116 KB Output is correct
17 Correct 4 ms 11988 KB Output is correct
18 Correct 5 ms 12088 KB Output is correct
19 Correct 4 ms 12092 KB Output is correct
20 Correct 5 ms 12116 KB Output is correct

Subtask #4
35.0 / 35.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 11988 KB Output is correct
2 Correct 4 ms 11988 KB Output is correct
3 Correct 5 ms 12116 KB Output is correct
4 Correct 5 ms 12244 KB Output is correct
5 Correct 6 ms 12388 KB Output is correct
6 Correct 7 ms 12200 KB Output is correct
7 Correct 4 ms 12080 KB Output is correct
8 Correct 4 ms 11988 KB Output is correct
9 Correct 7 ms 12376 KB Output is correct
10 Correct 4 ms 11988 KB Output is correct
11 Correct 4 ms 12116 KB Output is correct
12 Correct 4 ms 11988 KB Output is correct
13 Correct 5 ms 12088 KB Output is correct
14 Correct 4 ms 12092 KB Output is correct
15 Correct 5 ms 12116 KB Output is correct
16 Correct 4 ms 11988 KB Output is correct
17 Correct 4 ms 11988 KB Output is correct
18 Correct 4 ms 11988 KB Output is correct
19 Correct 4 ms 12116 KB Output is correct
20 Correct 7 ms 12580 KB Output is correct
21 Correct 6 ms 12628 KB Output is correct
22 Correct 12 ms 13912 KB Output is correct
23 Correct 20 ms 14980 KB Output is correct
24 Correct 27 ms 11988 KB Output is correct
25 Correct 10 ms 12992 KB Output is correct
26 Correct 90 ms 23924 KB Output is correct
27 Correct 36 ms 17732 KB Output is correct
28 Correct 93 ms 24716 KB Output is correct
29 Correct 32 ms 15372 KB Output is correct
30 Correct 98 ms 22776 KB Output is correct

Subtask #5
19.0 / 19.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 11988 KB Output is correct
2 Correct 4 ms 11988 KB Output is correct
3 Correct 5 ms 12116 KB Output is correct
4 Correct 5 ms 12244 KB Output is correct
5 Correct 6 ms 12388 KB Output is correct
6 Correct 7 ms 12200 KB Output is correct
7 Correct 4 ms 12080 KB Output is correct
8 Correct 4 ms 11988 KB Output is correct
9 Correct 7 ms 12376 KB Output is correct
10 Correct 4 ms 11988 KB Output is correct
11 Correct 4 ms 12116 KB Output is correct
12 Correct 4 ms 11988 KB Output is correct
13 Correct 5 ms 12088 KB Output is correct
14 Correct 4 ms 12092 KB Output is correct
15 Correct 5 ms 12116 KB Output is correct
16 Correct 10 ms 12992 KB Output is correct
17 Correct 90 ms 23924 KB Output is correct
18 Correct 36 ms 17732 KB Output is correct
19 Correct 93 ms 24716 KB Output is correct
20 Correct 32 ms 15372 KB Output is correct
21 Correct 98 ms 22776 KB Output is correct
22 Correct 81 ms 12064 KB Output is correct
23 Correct 4 ms 11988 KB Output is correct
24 Correct 4 ms 11988 KB Output is correct
25 Correct 92 ms 34108 KB Output is correct
26 Correct 4 ms 11988 KB Output is correct
27 Correct 4 ms 12116 KB Output is correct
28 Correct 7 ms 12580 KB Output is correct
29 Correct 6 ms 12628 KB Output is correct
30 Correct 254 ms 39960 KB Output is correct
31 Correct 425 ms 62868 KB Output is correct
32 Correct 12 ms 13912 KB Output is correct
33 Correct 20 ms 14980 KB Output is correct
34 Correct 27 ms 11988 KB Output is correct
35 Correct 24 ms 14496 KB Output is correct
36 Correct 140 ms 26500 KB Output is correct
37 Correct 64 ms 15268 KB Output is correct