답안 #989850

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
989850 2024-05-28T21:00:55 Z aaaaaarroz 경주 (Race) (IOI11_race) C++17
100 / 100
321 ms 108700 KB
    #include <bits/stdc++.h>
    using namespace std;
    typedef long long ll;
    typedef pair<ll, ll> pii;
    #define pb push_back
    #define f first
    #define s second
    const int maxn = 2e5 + 1;
    vector<pii> adj[maxn];
    map<ll, ll> info[maxn];
    ll dist[maxn], sum[maxn];  
    int N, K;
    ll ret;
    void precomp(int u, int p, ll c, int h) {
    	info[u][c] = h;
    	sum[u] = c;
    	dist[u] = h;
    	for (auto n : adj[u]) {
    		if (p == n.f) { 
              continue; 
            }
    		precomp(n.f, u, c + n.s, h + 1);
    	}
    }
    void small_to_large_merge(int u, int p) {
    	ll target = K + 2 * sum[u];
    	for (auto n : adj[u]) {
    		if (n.f == p) { 
              continue; 
            }
    		small_to_large_merge(n.f, u);
    		if (info[n.f].size() > info[u].size()) { swap(info[n.f], info[u]); }
    		for (auto i : info[n.f]) {
    			if (info[u].find(target - i.f) != info[u].end()) {
    				ret = min(ret, info[u][target - i.f] + i.s - 2 * dist[u]);
    			}
    		}
    		for (auto i : info[n.f]) {
    			if (info[u].find(i.f) == info[u].end()) {
    				info[u].insert(i);
    			} else {
    				info[u][i.f] = min(info[u][i.f], i.s);
    			}
    		}
    	}
    }
    int best_path(int n, int k, int edges[][2], int weights[]) {
    	if (k == 1) { 
          return 0; 
        }
    	N = n;
    	K = k;
    	ret = INT_MAX;
    	for (int i = 0; i < n - 1; i++) {
    		int u = edges[i][0];
    		int v = edges[i][1];
    		adj[u].pb(pii(v, weights[i]));
    		adj[v].pb(pii(u, weights[i]));
    	}
    	precomp(0, -1, 0, 0);
    	small_to_large_merge(0, -1);
    	return ret == INT_MAX ? -1 : ret;
    }
# 결과 실행 시간 메모리 Grader output
1 Correct 3 ms 21084 KB Output is correct
2 Correct 4 ms 21080 KB Output is correct
3 Correct 3 ms 21340 KB Output is correct
4 Correct 3 ms 21084 KB Output is correct
5 Correct 3 ms 21084 KB Output is correct
6 Correct 3 ms 21340 KB Output is correct
7 Correct 3 ms 21084 KB Output is correct
8 Correct 3 ms 21084 KB Output is correct
9 Correct 3 ms 21292 KB Output is correct
10 Correct 3 ms 21084 KB Output is correct
11 Correct 3 ms 21084 KB Output is correct
12 Correct 4 ms 21084 KB Output is correct
13 Correct 3 ms 21080 KB Output is correct
14 Correct 3 ms 21084 KB Output is correct
15 Correct 3 ms 21340 KB Output is correct
16 Correct 3 ms 21340 KB Output is correct
17 Correct 3 ms 21340 KB Output is correct
18 Correct 3 ms 21084 KB Output is correct
# 결과 실행 시간 메모리 Grader output
1 Correct 3 ms 21084 KB Output is correct
2 Correct 4 ms 21080 KB Output is correct
3 Correct 3 ms 21340 KB Output is correct
4 Correct 3 ms 21084 KB Output is correct
5 Correct 3 ms 21084 KB Output is correct
6 Correct 3 ms 21340 KB Output is correct
7 Correct 3 ms 21084 KB Output is correct
8 Correct 3 ms 21084 KB Output is correct
9 Correct 3 ms 21292 KB Output is correct
10 Correct 3 ms 21084 KB Output is correct
11 Correct 3 ms 21084 KB Output is correct
12 Correct 4 ms 21084 KB Output is correct
13 Correct 3 ms 21080 KB Output is correct
14 Correct 3 ms 21084 KB Output is correct
15 Correct 3 ms 21340 KB Output is correct
16 Correct 3 ms 21340 KB Output is correct
17 Correct 3 ms 21340 KB Output is correct
18 Correct 3 ms 21084 KB Output is correct
19 Correct 3 ms 21084 KB Output is correct
20 Correct 3 ms 21084 KB Output is correct
21 Correct 4 ms 21340 KB Output is correct
22 Correct 4 ms 21596 KB Output is correct
23 Correct 4 ms 21596 KB Output is correct
24 Correct 3 ms 21596 KB Output is correct
25 Correct 4 ms 21596 KB Output is correct
26 Correct 4 ms 21596 KB Output is correct
27 Correct 3 ms 21340 KB Output is correct
28 Correct 3 ms 21596 KB Output is correct
29 Correct 4 ms 21596 KB Output is correct
30 Correct 4 ms 21544 KB Output is correct
31 Correct 4 ms 21596 KB Output is correct
32 Correct 4 ms 21336 KB Output is correct
33 Correct 4 ms 21596 KB Output is correct
34 Correct 3 ms 21340 KB Output is correct
35 Correct 3 ms 21556 KB Output is correct
36 Correct 3 ms 21340 KB Output is correct
37 Correct 3 ms 21340 KB Output is correct
38 Correct 4 ms 21340 KB Output is correct
# 결과 실행 시간 메모리 Grader output
1 Correct 3 ms 21084 KB Output is correct
2 Correct 4 ms 21080 KB Output is correct
3 Correct 3 ms 21340 KB Output is correct
4 Correct 3 ms 21084 KB Output is correct
5 Correct 3 ms 21084 KB Output is correct
6 Correct 3 ms 21340 KB Output is correct
7 Correct 3 ms 21084 KB Output is correct
8 Correct 3 ms 21084 KB Output is correct
9 Correct 3 ms 21292 KB Output is correct
10 Correct 3 ms 21084 KB Output is correct
11 Correct 3 ms 21084 KB Output is correct
12 Correct 4 ms 21084 KB Output is correct
13 Correct 3 ms 21080 KB Output is correct
14 Correct 3 ms 21084 KB Output is correct
15 Correct 3 ms 21340 KB Output is correct
16 Correct 3 ms 21340 KB Output is correct
17 Correct 3 ms 21340 KB Output is correct
18 Correct 3 ms 21084 KB Output is correct
19 Correct 82 ms 44196 KB Output is correct
20 Correct 79 ms 45140 KB Output is correct
21 Correct 73 ms 44452 KB Output is correct
22 Correct 91 ms 44764 KB Output is correct
23 Correct 113 ms 57804 KB Output is correct
24 Correct 105 ms 47700 KB Output is correct
25 Correct 67 ms 46164 KB Output is correct
26 Correct 47 ms 53780 KB Output is correct
27 Correct 143 ms 54924 KB Output is correct
28 Correct 218 ms 96972 KB Output is correct
29 Correct 214 ms 95572 KB Output is correct
30 Correct 135 ms 55396 KB Output is correct
31 Correct 145 ms 55356 KB Output is correct
32 Correct 203 ms 55440 KB Output is correct
33 Correct 172 ms 60500 KB Output is correct
34 Correct 254 ms 92672 KB Output is correct
# 결과 실행 시간 메모리 Grader output
1 Correct 3 ms 21084 KB Output is correct
2 Correct 4 ms 21080 KB Output is correct
3 Correct 3 ms 21340 KB Output is correct
4 Correct 3 ms 21084 KB Output is correct
5 Correct 3 ms 21084 KB Output is correct
6 Correct 3 ms 21340 KB Output is correct
7 Correct 3 ms 21084 KB Output is correct
8 Correct 3 ms 21084 KB Output is correct
9 Correct 3 ms 21292 KB Output is correct
10 Correct 3 ms 21084 KB Output is correct
11 Correct 3 ms 21084 KB Output is correct
12 Correct 4 ms 21084 KB Output is correct
13 Correct 3 ms 21080 KB Output is correct
14 Correct 3 ms 21084 KB Output is correct
15 Correct 3 ms 21340 KB Output is correct
16 Correct 3 ms 21340 KB Output is correct
17 Correct 3 ms 21340 KB Output is correct
18 Correct 3 ms 21084 KB Output is correct
19 Correct 3 ms 21084 KB Output is correct
20 Correct 3 ms 21084 KB Output is correct
21 Correct 4 ms 21340 KB Output is correct
22 Correct 4 ms 21596 KB Output is correct
23 Correct 4 ms 21596 KB Output is correct
24 Correct 3 ms 21596 KB Output is correct
25 Correct 4 ms 21596 KB Output is correct
26 Correct 4 ms 21596 KB Output is correct
27 Correct 3 ms 21340 KB Output is correct
28 Correct 3 ms 21596 KB Output is correct
29 Correct 4 ms 21596 KB Output is correct
30 Correct 4 ms 21544 KB Output is correct
31 Correct 4 ms 21596 KB Output is correct
32 Correct 4 ms 21336 KB Output is correct
33 Correct 4 ms 21596 KB Output is correct
34 Correct 3 ms 21340 KB Output is correct
35 Correct 3 ms 21556 KB Output is correct
36 Correct 3 ms 21340 KB Output is correct
37 Correct 3 ms 21340 KB Output is correct
38 Correct 4 ms 21340 KB Output is correct
39 Correct 82 ms 44196 KB Output is correct
40 Correct 79 ms 45140 KB Output is correct
41 Correct 73 ms 44452 KB Output is correct
42 Correct 91 ms 44764 KB Output is correct
43 Correct 113 ms 57804 KB Output is correct
44 Correct 105 ms 47700 KB Output is correct
45 Correct 67 ms 46164 KB Output is correct
46 Correct 47 ms 53780 KB Output is correct
47 Correct 143 ms 54924 KB Output is correct
48 Correct 218 ms 96972 KB Output is correct
49 Correct 214 ms 95572 KB Output is correct
50 Correct 135 ms 55396 KB Output is correct
51 Correct 145 ms 55356 KB Output is correct
52 Correct 203 ms 55440 KB Output is correct
53 Correct 172 ms 60500 KB Output is correct
54 Correct 254 ms 92672 KB Output is correct
55 Correct 13 ms 24408 KB Output is correct
56 Correct 8 ms 22892 KB Output is correct
57 Correct 46 ms 41704 KB Output is correct
58 Correct 37 ms 35524 KB Output is correct
59 Correct 72 ms 60288 KB Output is correct
60 Correct 206 ms 95828 KB Output is correct
61 Correct 161 ms 58044 KB Output is correct
62 Correct 140 ms 55460 KB Output is correct
63 Correct 174 ms 55376 KB Output is correct
64 Correct 321 ms 108700 KB Output is correct
65 Correct 314 ms 108396 KB Output is correct
66 Correct 215 ms 89424 KB Output is correct
67 Correct 107 ms 49956 KB Output is correct
68 Correct 256 ms 71536 KB Output is correct
69 Correct 264 ms 73808 KB Output is correct
70 Correct 234 ms 69972 KB Output is correct