oj.uz

Submission #230706

# Submission time Handle Problem Language Result Execution time Memory
230706 2020-05-11T09:21:54 Z islingr Dreaming (IOI13_dreaming) C++14
14 / 100
 73 ms 13688 KB 
#include <dreaming.h>
#include <iostream>
#include <tuple>
#include <vector>
using namespace std;

#define rep(i, a, b) for (auto i = (a); i < (b); ++i)
#define trav(x, v) for (auto &x : v)

#define eb(x...) emplace_back(x)

using pii = pair<int, int>;

template<class T> bool ckmin(T& a, T b) { return a > b ? a = b, 1 : 0; }
template<class T> bool ckmax(T& a, T b) { return a < b ? a = b, 1 : 0; }

constexpr int N = 1 << 17;
vector<pii> g[N];
int d[N], p[N], a;
bool vis[N];

void dfs(int u, int p = -1) {
	if (d[u] > d[a]) a = u;
	::p[u] = p;
	vis[u] = true;
	trav(e, g[u]) {
		int v, w; tie(v, w) = e;
		if (v == p) continue;
		d[v] = d[u] + w;
		dfs(v, u);
	}
}

int travelTime(int n, int m, int l, int A[], int B[], int T[]) {
	rep(i, 0, m) {
		g[A[i]].eb(B[i], T[i]);
		g[B[i]].eb(A[i], T[i]);
	}
	int ans = 0, one = 0, two = 0;
	rep(u, 0, n) {
		if (vis[u]) continue;
		a = u; d[u] = 0; dfs(u);
		d[a] = 0; dfs(a);
		int e = d[a]; ckmax(ans, d[a]);
		for (int v = a; p[v] != -1; v = p[v]) 
			ckmin(e, max(d[a] - d[v], d[v]));
		if (one <= e) two = one, one = e;
		else if (two < e) two = e;
	}
	return two ? max(ans, one + two + l) : ans;
}

Subtask #1
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 65 ms 13688 KB Output is correct
2 Correct 57 ms 13560 KB Output is correct
3 Correct 44 ms 10360 KB Output is correct
4 Correct 14 ms 4992 KB Output is correct
5 Correct 12 ms 4352 KB Output is correct
6 Correct 18 ms 5760 KB Output is correct
7 Correct 6 ms 3456 KB Output is correct
8 Correct 30 ms 7160 KB Output is correct
9 Correct 44 ms 8568 KB Output is correct
10 Correct 8 ms 3456 KB Output is correct
11 Correct 63 ms 10488 KB Output is correct
12 Correct 73 ms 11896 KB Output is correct
13 Correct 7 ms 3584 KB Output is correct

Subtask #2
0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 65 ms 13688 KB Output is correct
2 Correct 57 ms 13560 KB Output is correct
3 Correct 44 ms 10360 KB Output is correct
4 Correct 14 ms 4992 KB Output is correct
5 Correct 12 ms 4352 KB Output is correct
6 Correct 18 ms 5760 KB Output is correct
7 Correct 6 ms 3456 KB Output is correct
8 Correct 30 ms 7160 KB Output is correct
9 Correct 44 ms 8568 KB Output is correct
10 Correct 8 ms 3456 KB Output is correct
11 Correct 63 ms 10488 KB Output is correct
12 Correct 73 ms 11896 KB Output is correct
13 Correct 7 ms 3584 KB Output is correct
14 Correct 6 ms 3456 KB Output is correct
15 Correct 6 ms 3456 KB Output is correct
16 Correct 7 ms 3456 KB Output is correct
17 Correct 7 ms 3456 KB Output is correct
18 Correct 7 ms 3456 KB Output is correct
19 Correct 6 ms 3456 KB Output is correct
20 Correct 6 ms 3456 KB Output is correct
21 Correct 6 ms 3456 KB Output is correct
22 Correct 6 ms 3456 KB Output is correct
23 Correct 6 ms 3456 KB Output is correct
24 Correct 6 ms 3456 KB Output is correct
25 Correct 6 ms 3456 KB Output is correct
26 Correct 6 ms 3456 KB Output is correct
27 Correct 6 ms 3456 KB Output is correct
28 Incorrect 6 ms 3456 KB Output isn't correct
29 Halted 0 ms 0 KB -

Subtask #3
0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 65 ms 13688 KB Output is correct
2 Correct 57 ms 13560 KB Output is correct
3 Correct 44 ms 10360 KB Output is correct
4 Correct 14 ms 4992 KB Output is correct
5 Correct 12 ms 4352 KB Output is correct
6 Correct 18 ms 5760 KB Output is correct
7 Correct 6 ms 3456 KB Output is correct
8 Correct 30 ms 7160 KB Output is correct
9 Correct 44 ms 8568 KB Output is correct
10 Correct 8 ms 3456 KB Output is correct
11 Correct 63 ms 10488 KB Output is correct
12 Correct 73 ms 11896 KB Output is correct
13 Correct 7 ms 3584 KB Output is correct
14 Correct 6 ms 3456 KB Output is correct
15 Correct 6 ms 3456 KB Output is correct
16 Correct 7 ms 3456 KB Output is correct
17 Correct 7 ms 3456 KB Output is correct
18 Correct 7 ms 3456 KB Output is correct
19 Correct 6 ms 3456 KB Output is correct
20 Correct 6 ms 3456 KB Output is correct
21 Correct 6 ms 3456 KB Output is correct
22 Correct 6 ms 3456 KB Output is correct
23 Correct 6 ms 3456 KB Output is correct
24 Correct 6 ms 3456 KB Output is correct
25 Correct 6 ms 3456 KB Output is correct
26 Correct 6 ms 3456 KB Output is correct
27 Correct 6 ms 3456 KB Output is correct
28 Incorrect 6 ms 3456 KB Output isn't correct
29 Halted 0 ms 0 KB -

Subtask #4
0 / 18.0

# Verdict Execution time Memory Grader output
1 Correct 26 ms 7040 KB Output is correct
2 Incorrect 26 ms 7040 KB Output isn't correct
3 Halted 0 ms 0 KB -

Subtask #5
0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 65 ms 13688 KB Output is correct
2 Correct 57 ms 13560 KB Output is correct
3 Correct 44 ms 10360 KB Output is correct
4 Correct 14 ms 4992 KB Output is correct
5 Correct 12 ms 4352 KB Output is correct
6 Correct 18 ms 5760 KB Output is correct
7 Correct 6 ms 3456 KB Output is correct
8 Correct 30 ms 7160 KB Output is correct
9 Correct 44 ms 8568 KB Output is correct
10 Correct 8 ms 3456 KB Output is correct
11 Correct 63 ms 10488 KB Output is correct
12 Correct 73 ms 11896 KB Output is correct
13 Correct 7 ms 3584 KB Output is correct
14 Correct 7 ms 3456 KB Output is correct
15 Correct 7 ms 3584 KB Output is correct
16 Correct 7 ms 3584 KB Output is correct
17 Correct 7 ms 3456 KB Output is correct
18 Correct 8 ms 3584 KB Output is correct
19 Correct 7 ms 3584 KB Output is correct
20 Incorrect 7 ms 3456 KB Output isn't correct
21 Halted 0 ms 0 KB -

Subtask #6
0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 65 ms 13688 KB Output is correct
2 Correct 57 ms 13560 KB Output is correct
3 Correct 44 ms 10360 KB Output is correct
4 Correct 14 ms 4992 KB Output is correct
5 Correct 12 ms 4352 KB Output is correct
6 Correct 18 ms 5760 KB Output is correct
7 Correct 6 ms 3456 KB Output is correct
8 Correct 30 ms 7160 KB Output is correct
9 Correct 44 ms 8568 KB Output is correct
10 Correct 8 ms 3456 KB Output is correct
11 Correct 63 ms 10488 KB Output is correct
12 Correct 73 ms 11896 KB Output is correct
13 Correct 7 ms 3584 KB Output is correct
14 Correct 6 ms 3456 KB Output is correct
15 Correct 6 ms 3456 KB Output is correct
16 Correct 7 ms 3456 KB Output is correct
17 Correct 7 ms 3456 KB Output is correct
18 Correct 7 ms 3456 KB Output is correct
19 Correct 6 ms 3456 KB Output is correct
20 Correct 6 ms 3456 KB Output is correct
21 Correct 6 ms 3456 KB Output is correct
22 Correct 6 ms 3456 KB Output is correct
23 Correct 6 ms 3456 KB Output is correct
24 Correct 6 ms 3456 KB Output is correct
25 Correct 6 ms 3456 KB Output is correct
26 Correct 6 ms 3456 KB Output is correct
27 Correct 6 ms 3456 KB Output is correct
28 Incorrect 6 ms 3456 KB Output isn't correct
29 Halted 0 ms 0 KB -