oj.uz

Submission #272181

# Submission time Handle Problem Language Result Execution time Memory
272181 2020-08-18T10:15:07 Z _7_7_ Dreaming (IOI13_dreaming) C++14
47 / 100
 236 ms 24820 KB 
#include <bits/stdc++.h>                                           
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>
#include "dreaming.h" 

using namespace std;
using namespace __gnu_pbds;
 
//#define int long long
//#pragma GCC optimize("Ofast")
//#pragma comment(linker, "/stack:200000000")
//#pragma GCC target("sse,sse2,sse3,ssse3,sse4")
 
 
#define file(s) freopen(s".in","r",stdin); freopen(s".out","w",stdout);
#define fastio ios_base::sync_with_stdio(0), cin.tie(0), cout.tie(0);
#define all(x) x.begin(), x.end()
#define sz(s) (int)s.size()
#define pb push_back
#define ppb pop_back
#define mp make_pair
#define s second
#define f first
 
 
 
 
typedef pair < long long, long long > pll;    
typedef pair < int, int > pii;  
typedef unsigned long long ull;         
typedef vector < pii > vpii;                                   	
typedef vector < int > vi;
typedef long double ldb;  
typedef long long ll;  
typedef double db;
 
typedef tree < int, null_type, less < int >, rb_tree_tag, tree_order_statistics_node_update > ordered_set;
 
const int inf = 1e9, maxn = 2e5 + 48, mod = 998244353, N = 1e5 + 12;
const int dx[] = {1, -1, 0, 0}, dy[] = {0, 0, 1, -1}, block = 300;
const pii base = mp(1171, 3307), Mod = mp(1e9 + 7, 1e9 + 9);
const db eps = 1e-12, pi = acos(-1);
const ll INF = 1e18;


int up[N][17], d[N], s[N], v, u;
vpii g[N];
vi V, vv;

void dfs (int v, int p = 0) {
    V.pb(v);
    d[v] = d[p] + 1;
	up[v][0] = p;
	for (int i = 1; i < 17; ++i)
		up[v][i] = up[up[v][i - 1]][i - 1];

	for (auto x : g[v]) {
		int to = x.f;
		if (to != p) {
		    s[to] = s[v] + x.s;
			dfs(to, v);
		}
	}
}


int lca (int v, int u) {
	if (d[v] < d[u])
		swap(v, u);

	for (int i = 16; i >= 0; --i)
		if (d[v] - (1 << i) >= d[u])
			v = up[v][i];

	if (v == u)
		return v;

	for (int i = 16; i >= 0; --i)
		if (up[v][i] != up[u][i]) {
			v = up[v][i];
			u = up[u][i];
		}

	return up[v][0];
}

int dist (int v, int u) {
	int l = lca(v, u);
	return s[v] + s[u] - 2*s[l];
}

int travelTime(int n, int m, int L, int a[], int b[], int w[]) {
	for (int i = 0; i < m; ++i)  {
		++a[i], ++b[i];
		g[a[i]].pb({b[i], w[i]});
		g[b[i]].pb({a[i], w[i]});
	}

	int ans = 0;
	for (int i = 1; i <= n; ++i) 
		if (!d[i]) {
			V.clear();
			dfs(i);		 
			v = i;
			for (auto j : V)
				if (s[j] > s[v])
					v = j;

			V.clear();
			dfs(v);
			int u = v;
			for (auto j : V)
				if (s[j] > s[u]) 
					u = j;

			int mn = inf + inf;
			for (auto j : V)
				mn = min(mn, max(dist(v, j), dist(u, j)));
//			cerr << i << ' ' << v << ' ' << u << ' ' << mn << endl;
			ans = max(ans, dist(v, u));
			vv.pb(mn);
		}

	assert(sz(vv) == n - m);
	assert(n - m == 2);

	sort(all(vv));
	reverse(all(vv));
	if (sz(vv) == 1)
		return max(ans, vv[0]);
	if (sz(vv) == 2)
		return max(ans, vv[0] + vv[1] + L);

	return max({ans, vv[0] + vv[1] + L, vv[1] + vv[2] + L + L});	
}

Subtask #1
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 149 ms 18168 KB Output is correct
2 Correct 147 ms 18932 KB Output is correct
3 Correct 87 ms 13684 KB Output is correct
4 Correct 16 ms 5248 KB Output is correct
5 Correct 11 ms 4224 KB Output is correct
6 Correct 26 ms 6528 KB Output is correct
7 Correct 3 ms 2688 KB Output is correct
8 Correct 58 ms 9208 KB Output is correct
9 Correct 90 ms 11428 KB Output is correct
10 Correct 2 ms 2816 KB Output is correct
11 Correct 151 ms 14200 KB Output is correct
12 Correct 138 ms 16492 KB Output is correct
13 Correct 3 ms 2816 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 149 ms 18168 KB Output is correct
2 Correct 147 ms 18932 KB Output is correct
3 Correct 87 ms 13684 KB Output is correct
4 Correct 16 ms 5248 KB Output is correct
5 Correct 11 ms 4224 KB Output is correct
6 Correct 26 ms 6528 KB Output is correct
7 Correct 3 ms 2688 KB Output is correct
8 Correct 58 ms 9208 KB Output is correct
9 Correct 90 ms 11428 KB Output is correct
10 Correct 2 ms 2816 KB Output is correct
11 Correct 151 ms 14200 KB Output is correct
12 Correct 138 ms 16492 KB Output is correct
13 Correct 3 ms 2816 KB Output is correct
14 Correct 2 ms 2688 KB Output is correct
15 Correct 2 ms 2688 KB Output is correct
16 Correct 2 ms 2688 KB Output is correct
17 Correct 2 ms 2688 KB Output is correct
18 Correct 3 ms 2688 KB Output is correct
19 Correct 3 ms 2688 KB Output is correct
20 Correct 2 ms 2688 KB Output is correct
21 Correct 2 ms 2688 KB Output is correct
22 Correct 3 ms 2688 KB Output is correct
23 Correct 3 ms 2688 KB Output is correct
24 Correct 3 ms 2688 KB Output is correct
25 Correct 3 ms 2688 KB Output is correct
26 Correct 2 ms 2688 KB Output is correct
27 Correct 3 ms 2688 KB Output is correct
28 Correct 2 ms 2688 KB Output is correct
29 Correct 3 ms 2688 KB Output is correct
30 Correct 3 ms 2688 KB Output is correct
31 Correct 3 ms 2688 KB Output is correct
32 Correct 2 ms 2688 KB Output is correct
33 Correct 3 ms 2688 KB Output is correct
34 Correct 2 ms 2688 KB Output is correct
35 Correct 3 ms 2688 KB Output is correct
36 Correct 2 ms 2720 KB Output is correct
37 Correct 2 ms 2688 KB Output is correct
38 Correct 2 ms 2688 KB Output is correct

Subtask #3
23.0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 149 ms 18168 KB Output is correct
2 Correct 147 ms 18932 KB Output is correct
3 Correct 87 ms 13684 KB Output is correct
4 Correct 16 ms 5248 KB Output is correct
5 Correct 11 ms 4224 KB Output is correct
6 Correct 26 ms 6528 KB Output is correct
7 Correct 3 ms 2688 KB Output is correct
8 Correct 58 ms 9208 KB Output is correct
9 Correct 90 ms 11428 KB Output is correct
10 Correct 2 ms 2816 KB Output is correct
11 Correct 151 ms 14200 KB Output is correct
12 Correct 138 ms 16492 KB Output is correct
13 Correct 3 ms 2816 KB Output is correct
14 Correct 2 ms 2688 KB Output is correct
15 Correct 2 ms 2688 KB Output is correct
16 Correct 2 ms 2688 KB Output is correct
17 Correct 2 ms 2688 KB Output is correct
18 Correct 3 ms 2688 KB Output is correct
19 Correct 3 ms 2688 KB Output is correct
20 Correct 2 ms 2688 KB Output is correct
21 Correct 2 ms 2688 KB Output is correct
22 Correct 3 ms 2688 KB Output is correct
23 Correct 3 ms 2688 KB Output is correct
24 Correct 3 ms 2688 KB Output is correct
25 Correct 3 ms 2688 KB Output is correct
26 Correct 2 ms 2688 KB Output is correct
27 Correct 3 ms 2688 KB Output is correct
28 Correct 2 ms 2688 KB Output is correct
29 Correct 3 ms 2688 KB Output is correct
30 Correct 3 ms 2688 KB Output is correct
31 Correct 3 ms 2688 KB Output is correct
32 Correct 2 ms 2688 KB Output is correct
33 Correct 3 ms 2688 KB Output is correct
34 Correct 2 ms 2688 KB Output is correct
35 Correct 3 ms 2688 KB Output is correct
36 Correct 2 ms 2720 KB Output is correct
37 Correct 2 ms 2688 KB Output is correct
38 Correct 2 ms 2688 KB Output is correct
39 Correct 154 ms 18932 KB Output is correct
40 Correct 167 ms 18932 KB Output is correct
41 Correct 106 ms 13684 KB Output is correct
42 Correct 20 ms 5248 KB Output is correct
43 Correct 3 ms 2688 KB Output is correct
44 Correct 2 ms 2688 KB Output is correct
45 Correct 3 ms 2688 KB Output is correct
46 Correct 2 ms 2688 KB Output is correct
47 Correct 2 ms 2688 KB Output is correct
48 Correct 2 ms 2688 KB Output is correct
49 Correct 3 ms 2688 KB Output is correct
50 Correct 2 ms 2688 KB Output is correct
51 Correct 2 ms 2688 KB Output is correct
52 Correct 2 ms 2688 KB Output is correct
53 Correct 2 ms 2688 KB Output is correct
54 Correct 3 ms 2688 KB Output is correct
55 Correct 2 ms 2688 KB Output is correct
56 Correct 2 ms 2688 KB Output is correct
57 Correct 194 ms 16720 KB Output is correct
58 Correct 152 ms 16376 KB Output is correct
59 Correct 163 ms 16752 KB Output is correct
60 Correct 218 ms 16248 KB Output is correct
61 Correct 156 ms 16628 KB Output is correct
62 Correct 160 ms 16304 KB Output is correct
63 Correct 142 ms 16396 KB Output is correct
64 Correct 156 ms 16376 KB Output is correct
65 Correct 178 ms 16376 KB Output is correct
66 Correct 143 ms 16380 KB Output is correct
67 Correct 160 ms 16628 KB Output is correct
68 Correct 157 ms 16756 KB Output is correct
69 Correct 169 ms 16372 KB Output is correct
70 Correct 186 ms 16248 KB Output is correct
71 Correct 2 ms 2688 KB Output is correct
72 Correct 5 ms 3200 KB Output is correct
73 Correct 5 ms 3072 KB Output is correct
74 Correct 5 ms 3072 KB Output is correct
75 Correct 6 ms 3072 KB Output is correct
76 Correct 5 ms 3072 KB Output is correct
77 Correct 5 ms 3072 KB Output is correct
78 Correct 5 ms 3072 KB Output is correct
79 Correct 5 ms 3176 KB Output is correct
80 Correct 180 ms 16628 KB Output is correct
81 Correct 195 ms 16628 KB Output is correct
82 Correct 167 ms 16632 KB Output is correct
83 Correct 171 ms 16500 KB Output is correct
84 Correct 4 ms 3072 KB Output is correct
85 Correct 4 ms 3072 KB Output is correct
86 Correct 4 ms 3072 KB Output is correct
87 Correct 6 ms 3072 KB Output is correct
88 Correct 4 ms 3072 KB Output is correct
89 Correct 5 ms 3072 KB Output is correct
90 Correct 4 ms 3072 KB Output is correct
91 Correct 5 ms 3072 KB Output is correct
92 Correct 5 ms 3072 KB Output is correct
93 Correct 4 ms 3072 KB Output is correct
94 Correct 2 ms 2688 KB Output is correct
95 Correct 2 ms 2688 KB Output is correct
96 Correct 2 ms 2816 KB Output is correct
97 Correct 2 ms 2688 KB Output is correct
98 Correct 2 ms 2688 KB Output is correct
99 Correct 3 ms 2688 KB Output is correct
100 Correct 3 ms 2688 KB Output is correct
101 Correct 2 ms 2688 KB Output is correct
102 Correct 2 ms 2688 KB Output is correct
103 Correct 2 ms 2688 KB Output is correct
104 Correct 12 ms 4224 KB Output is correct
105 Correct 31 ms 6520 KB Output is correct
106 Correct 3 ms 2688 KB Output is correct
107 Correct 59 ms 9208 KB Output is correct
108 Correct 114 ms 11384 KB Output is correct
109 Correct 3 ms 2816 KB Output is correct
110 Correct 125 ms 14200 KB Output is correct
111 Correct 135 ms 16500 KB Output is correct
112 Correct 3 ms 2816 KB Output is correct
113 Correct 236 ms 20464 KB Output is correct

Subtask #4
0 / 18.0

# Verdict Execution time Memory Grader output
1 Runtime error 71 ms 24820 KB Execution killed with signal 11
2 Halted 0 ms 0 KB -

Subtask #5
0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 149 ms 18168 KB Output is correct
2 Correct 147 ms 18932 KB Output is correct
3 Correct 87 ms 13684 KB Output is correct
4 Correct 16 ms 5248 KB Output is correct
5 Correct 11 ms 4224 KB Output is correct
6 Correct 26 ms 6528 KB Output is correct
7 Correct 3 ms 2688 KB Output is correct
8 Correct 58 ms 9208 KB Output is correct
9 Correct 90 ms 11428 KB Output is correct
10 Correct 2 ms 2816 KB Output is correct
11 Correct 151 ms 14200 KB Output is correct
12 Correct 138 ms 16492 KB Output is correct
13 Correct 3 ms 2816 KB Output is correct
14 Runtime error 7 ms 5504 KB Execution killed with signal 11
15 Halted 0 ms 0 KB -

Subtask #6
0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 149 ms 18168 KB Output is correct
2 Correct 147 ms 18932 KB Output is correct
3 Correct 87 ms 13684 KB Output is correct
4 Correct 16 ms 5248 KB Output is correct
5 Correct 11 ms 4224 KB Output is correct
6 Correct 26 ms 6528 KB Output is correct
7 Correct 3 ms 2688 KB Output is correct
8 Correct 58 ms 9208 KB Output is correct
9 Correct 90 ms 11428 KB Output is correct
10 Correct 2 ms 2816 KB Output is correct
11 Correct 151 ms 14200 KB Output is correct
12 Correct 138 ms 16492 KB Output is correct
13 Correct 3 ms 2816 KB Output is correct
14 Correct 2 ms 2688 KB Output is correct
15 Correct 2 ms 2688 KB Output is correct
16 Correct 2 ms 2688 KB Output is correct
17 Correct 2 ms 2688 KB Output is correct
18 Correct 3 ms 2688 KB Output is correct
19 Correct 3 ms 2688 KB Output is correct
20 Correct 2 ms 2688 KB Output is correct
21 Correct 2 ms 2688 KB Output is correct
22 Correct 3 ms 2688 KB Output is correct
23 Correct 3 ms 2688 KB Output is correct
24 Correct 3 ms 2688 KB Output is correct
25 Correct 3 ms 2688 KB Output is correct
26 Correct 2 ms 2688 KB Output is correct
27 Correct 3 ms 2688 KB Output is correct
28 Correct 2 ms 2688 KB Output is correct
29 Correct 3 ms 2688 KB Output is correct
30 Correct 3 ms 2688 KB Output is correct
31 Correct 3 ms 2688 KB Output is correct
32 Correct 2 ms 2688 KB Output is correct
33 Correct 3 ms 2688 KB Output is correct
34 Correct 2 ms 2688 KB Output is correct
35 Correct 3 ms 2688 KB Output is correct
36 Correct 2 ms 2720 KB Output is correct
37 Correct 2 ms 2688 KB Output is correct
38 Correct 2 ms 2688 KB Output is correct
39 Correct 154 ms 18932 KB Output is correct
40 Correct 167 ms 18932 KB Output is correct
41 Correct 106 ms 13684 KB Output is correct
42 Correct 20 ms 5248 KB Output is correct
43 Correct 3 ms 2688 KB Output is correct
44 Correct 2 ms 2688 KB Output is correct
45 Correct 3 ms 2688 KB Output is correct
46 Correct 2 ms 2688 KB Output is correct
47 Correct 2 ms 2688 KB Output is correct
48 Correct 2 ms 2688 KB Output is correct
49 Correct 3 ms 2688 KB Output is correct
50 Correct 2 ms 2688 KB Output is correct
51 Correct 2 ms 2688 KB Output is correct
52 Correct 2 ms 2688 KB Output is correct
53 Correct 2 ms 2688 KB Output is correct
54 Correct 3 ms 2688 KB Output is correct
55 Correct 2 ms 2688 KB Output is correct
56 Correct 2 ms 2688 KB Output is correct
57 Correct 194 ms 16720 KB Output is correct
58 Correct 152 ms 16376 KB Output is correct
59 Correct 163 ms 16752 KB Output is correct
60 Correct 218 ms 16248 KB Output is correct
61 Correct 156 ms 16628 KB Output is correct
62 Correct 160 ms 16304 KB Output is correct
63 Correct 142 ms 16396 KB Output is correct
64 Correct 156 ms 16376 KB Output is correct
65 Correct 178 ms 16376 KB Output is correct
66 Correct 143 ms 16380 KB Output is correct
67 Correct 160 ms 16628 KB Output is correct
68 Correct 157 ms 16756 KB Output is correct
69 Correct 169 ms 16372 KB Output is correct
70 Correct 186 ms 16248 KB Output is correct
71 Correct 2 ms 2688 KB Output is correct
72 Correct 5 ms 3200 KB Output is correct
73 Correct 5 ms 3072 KB Output is correct
74 Correct 5 ms 3072 KB Output is correct
75 Correct 6 ms 3072 KB Output is correct
76 Correct 5 ms 3072 KB Output is correct
77 Correct 5 ms 3072 KB Output is correct
78 Correct 5 ms 3072 KB Output is correct
79 Correct 5 ms 3176 KB Output is correct
80 Correct 180 ms 16628 KB Output is correct
81 Correct 195 ms 16628 KB Output is correct
82 Correct 167 ms 16632 KB Output is correct
83 Correct 171 ms 16500 KB Output is correct
84 Correct 4 ms 3072 KB Output is correct
85 Correct 4 ms 3072 KB Output is correct
86 Correct 4 ms 3072 KB Output is correct
87 Correct 6 ms 3072 KB Output is correct
88 Correct 4 ms 3072 KB Output is correct
89 Correct 5 ms 3072 KB Output is correct
90 Correct 4 ms 3072 KB Output is correct
91 Correct 5 ms 3072 KB Output is correct
92 Correct 5 ms 3072 KB Output is correct
93 Correct 4 ms 3072 KB Output is correct
94 Correct 2 ms 2688 KB Output is correct
95 Correct 2 ms 2688 KB Output is correct
96 Correct 2 ms 2816 KB Output is correct
97 Correct 2 ms 2688 KB Output is correct
98 Correct 2 ms 2688 KB Output is correct
99 Correct 3 ms 2688 KB Output is correct
100 Correct 3 ms 2688 KB Output is correct
101 Correct 2 ms 2688 KB Output is correct
102 Correct 2 ms 2688 KB Output is correct
103 Correct 2 ms 2688 KB Output is correct
104 Correct 12 ms 4224 KB Output is correct
105 Correct 31 ms 6520 KB Output is correct
106 Correct 3 ms 2688 KB Output is correct
107 Correct 59 ms 9208 KB Output is correct
108 Correct 114 ms 11384 KB Output is correct
109 Correct 3 ms 2816 KB Output is correct
110 Correct 125 ms 14200 KB Output is correct
111 Correct 135 ms 16500 KB Output is correct
112 Correct 3 ms 2816 KB Output is correct
113 Correct 236 ms 20464 KB Output is correct
114 Runtime error 71 ms 24820 KB Execution killed with signal 11
115 Halted 0 ms 0 KB -