oj.uz

답안 #923860

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
923860 2024-02-08T03:06:09 Z atom 경주 (Race) (IOI11_race) C++17
100 / 100
 292 ms 42712 KB 
    #include "bits/stdc++.h"
    // @JASPER'S BOILERPLATE
    using namespace std;
    using ll = long long;
    using ull = unsigned long long;
    #define FOR(i, a, b) for(int i = a; i <= b; i++)
    #define FORD(i, a, b) for(int i = a; i >= b; i--)
    #define REP(i, b) for(int i = 0; i < b; i++)
    #define PER(i, b) for(int i = b - 1; i >= 0; i--)
    #define fi first
    #define se second
    #define all(x) x.begin(),x.end()
    #ifdef JASPER2
    #include "debug.h"
    #else
    #define debug(...) 166
    #endif
     
    //#define int long long
    using pii = pair < int, int >;
    const ll LINF = 1e18 + 5;
    const int INF = 1e9;
    const int MOD = 1e9 + 7;
    const int MAX = 2e5 + 5;
     
    int n, k;
    vector <pii> adj[MAX];
     
    int cnt[MAX * 5];
    int sz[MAX];
    bool vis[MAX];
    int Tsize = 0;
     
    void reSubsize(int u, int p) {
        sz[u] = 1;
        for (auto &[w, v] : adj[u]) {
            if (v != p && !vis[v]) {
                reSubsize(v, u);
                sz[u] += sz[v];
            }
        }
    }
     
    int getCentroid(int u, int p) {
        for (auto &[w, v] : adj[u])
            if (v != p && !vis[v] && sz[v] > Tsize / 2)
                return getCentroid(v, u);
        return u;
    }
     
    int f[MAX * 5];
    // f(i) : Minimum edge to form i length from subtree to current centroid (0 in sub;
    int maxW, ans;
    int nCur;
    vector <pii> subtree;
    void process(int u, int p, int eCnt, int W) {
        if (W > k)
            return;
        if (k >= W && cnt[k - W] == nCur)
            ans = min(ans, eCnt + f[k - W]);
        subtree.push_back({eCnt, W});
        for (auto &[w, v] : adj[u]) {
            if (v != p && !vis[v]) {
                process(v, u, eCnt + 1, W + w);
            }
        }
    }
     
    void decompose(int u, int p) {
        reSubsize(u, 0);
        Tsize = sz[u];
        int x = getCentroid(u, 0);
     
        ++nCur;
        cnt[0] = nCur;
        debug(nCur);
        f[0] = 0;
        vis[x] = 1;
        vector <pii> valid;
     
        for (auto [w, v] : adj[x]) {
            subtree.clear();
            if (!vis[v]) {
                process(v, x, 1, w);
                valid.push_back({w, v});
            }
            for (auto [eCnt, W] : subtree) {
                if (cnt[W] != nCur || (cnt[W] == nCur && f[W] > eCnt))  {
                    cnt[W] = nCur;
                    f[W] = eCnt;
                }
            }
        }
     
        for (auto [w, v] : valid) {
            decompose(v, x);
        }
    }
     
    int N, K;
    int H[MAX][2];
    int L[MAX];
     
    int best_path(int N, int K, int a[][2], int W[]) {
        cin >> n >> k;
        n = N, k = K;
        for (int i = 0; i < n; ++i) {
            int u = a[i][0], v = a[i][1], w = W[i];
            ++u, ++v;
            adj[u].push_back({w, v});
            adj[v].push_back({w, u});
          	maxW += w;
        }
        maxW = min(k, maxW);
        ans = INF;
        for (int i = 0; i <= k; ++i) f[i] = INF;
        decompose(1, 0);
        if (ans == INF) ans = -1;
        return ans;
    }

Compilation message

race.cpp: In function 'void decompose(int, int)':
race.cpp:16:24: warning: statement has no effect [-Wunused-value]
   16 |     #define debug(...) 166
      |                        ^~~
race.cpp:76:9: note: in expansion of macro 'debug'
   76 |         debug(nCur);
      |         ^~~~~

Subtask #1
9.0 / 9.0

# 결과 실행 시간 메모리 Grader output
1 Correct 3 ms 16044 KB Output is correct
2 Correct 4 ms 15708 KB Output is correct
3 Correct 3 ms 15828 KB Output is correct
4 Correct 3 ms 15708 KB Output is correct
5 Correct 4 ms 15708 KB Output is correct
6 Correct 4 ms 15708 KB Output is correct
7 Correct 4 ms 15708 KB Output is correct
8 Correct 3 ms 15708 KB Output is correct
9 Correct 4 ms 15708 KB Output is correct
10 Correct 3 ms 15704 KB Output is correct
11 Correct 3 ms 15708 KB Output is correct
12 Correct 3 ms 15708 KB Output is correct
13 Correct 3 ms 15708 KB Output is correct
14 Correct 3 ms 15708 KB Output is correct
15 Correct 3 ms 15708 KB Output is correct
16 Correct 3 ms 15708 KB Output is correct
17 Correct 4 ms 15732 KB Output is correct
18 Correct 3 ms 15704 KB Output is correct

Subtask #2
12.0 / 12.0

# 결과 실행 시간 메모리 Grader output
1 Correct 3 ms 16044 KB Output is correct
2 Correct 4 ms 15708 KB Output is correct
3 Correct 3 ms 15828 KB Output is correct
4 Correct 3 ms 15708 KB Output is correct
5 Correct 4 ms 15708 KB Output is correct
6 Correct 4 ms 15708 KB Output is correct
7 Correct 4 ms 15708 KB Output is correct
8 Correct 3 ms 15708 KB Output is correct
9 Correct 4 ms 15708 KB Output is correct
10 Correct 3 ms 15704 KB Output is correct
11 Correct 3 ms 15708 KB Output is correct
12 Correct 3 ms 15708 KB Output is correct
13 Correct 3 ms 15708 KB Output is correct
14 Correct 3 ms 15708 KB Output is correct
15 Correct 3 ms 15708 KB Output is correct
16 Correct 3 ms 15708 KB Output is correct
17 Correct 4 ms 15732 KB Output is correct
18 Correct 3 ms 15704 KB Output is correct
19 Correct 3 ms 15704 KB Output is correct
20 Correct 3 ms 15708 KB Output is correct
21 Correct 3 ms 15708 KB Output is correct
22 Correct 4 ms 19292 KB Output is correct
23 Correct 5 ms 19036 KB Output is correct
24 Correct 4 ms 19548 KB Output is correct
25 Correct 4 ms 18524 KB Output is correct
26 Correct 4 ms 17756 KB Output is correct
27 Correct 4 ms 17756 KB Output is correct
28 Correct 5 ms 17756 KB Output is correct
29 Correct 4 ms 17756 KB Output is correct
30 Correct 4 ms 17752 KB Output is correct
31 Correct 4 ms 18732 KB Output is correct
32 Correct 4 ms 18780 KB Output is correct
33 Correct 4 ms 19376 KB Output is correct
34 Correct 4 ms 18524 KB Output is correct
35 Correct 4 ms 19292 KB Output is correct
36 Correct 5 ms 19548 KB Output is correct
37 Correct 4 ms 18524 KB Output is correct
38 Correct 4 ms 17756 KB Output is correct

Subtask #3
22.0 / 22.0

# 결과 실행 시간 메모리 Grader output
1 Correct 3 ms 16044 KB Output is correct
2 Correct 4 ms 15708 KB Output is correct
3 Correct 3 ms 15828 KB Output is correct
4 Correct 3 ms 15708 KB Output is correct
5 Correct 4 ms 15708 KB Output is correct
6 Correct 4 ms 15708 KB Output is correct
7 Correct 4 ms 15708 KB Output is correct
8 Correct 3 ms 15708 KB Output is correct
9 Correct 4 ms 15708 KB Output is correct
10 Correct 3 ms 15704 KB Output is correct
11 Correct 3 ms 15708 KB Output is correct
12 Correct 3 ms 15708 KB Output is correct
13 Correct 3 ms 15708 KB Output is correct
14 Correct 3 ms 15708 KB Output is correct
15 Correct 3 ms 15708 KB Output is correct
16 Correct 3 ms 15708 KB Output is correct
17 Correct 4 ms 15732 KB Output is correct
18 Correct 3 ms 15704 KB Output is correct
19 Correct 76 ms 21596 KB Output is correct
20 Correct 80 ms 21784 KB Output is correct
21 Correct 77 ms 22100 KB Output is correct
22 Correct 70 ms 22104 KB Output is correct
23 Correct 49 ms 21864 KB Output is correct
24 Correct 39 ms 21840 KB Output is correct
25 Correct 82 ms 24488 KB Output is correct
26 Correct 69 ms 27872 KB Output is correct
27 Correct 109 ms 25612 KB Output is correct
28 Correct 187 ms 36948 KB Output is correct
29 Correct 178 ms 35700 KB Output is correct
30 Correct 106 ms 25600 KB Output is correct
31 Correct 121 ms 25428 KB Output is correct
32 Correct 177 ms 25424 KB Output is correct
33 Correct 127 ms 24400 KB Output is correct
34 Correct 115 ms 24424 KB Output is correct

Subtask #4
57.0 / 57.0

# 결과 실행 시간 메모리 Grader output
1 Correct 3 ms 16044 KB Output is correct
2 Correct 4 ms 15708 KB Output is correct
3 Correct 3 ms 15828 KB Output is correct
4 Correct 3 ms 15708 KB Output is correct
5 Correct 4 ms 15708 KB Output is correct
6 Correct 4 ms 15708 KB Output is correct
7 Correct 4 ms 15708 KB Output is correct
8 Correct 3 ms 15708 KB Output is correct
9 Correct 4 ms 15708 KB Output is correct
10 Correct 3 ms 15704 KB Output is correct
11 Correct 3 ms 15708 KB Output is correct
12 Correct 3 ms 15708 KB Output is correct
13 Correct 3 ms 15708 KB Output is correct
14 Correct 3 ms 15708 KB Output is correct
15 Correct 3 ms 15708 KB Output is correct
16 Correct 3 ms 15708 KB Output is correct
17 Correct 4 ms 15732 KB Output is correct
18 Correct 3 ms 15704 KB Output is correct
19 Correct 3 ms 15704 KB Output is correct
20 Correct 3 ms 15708 KB Output is correct
21 Correct 3 ms 15708 KB Output is correct
22 Correct 4 ms 19292 KB Output is correct
23 Correct 5 ms 19036 KB Output is correct
24 Correct 4 ms 19548 KB Output is correct
25 Correct 4 ms 18524 KB Output is correct
26 Correct 4 ms 17756 KB Output is correct
27 Correct 4 ms 17756 KB Output is correct
28 Correct 5 ms 17756 KB Output is correct
29 Correct 4 ms 17756 KB Output is correct
30 Correct 4 ms 17752 KB Output is correct
31 Correct 4 ms 18732 KB Output is correct
32 Correct 4 ms 18780 KB Output is correct
33 Correct 4 ms 19376 KB Output is correct
34 Correct 4 ms 18524 KB Output is correct
35 Correct 4 ms 19292 KB Output is correct
36 Correct 5 ms 19548 KB Output is correct
37 Correct 4 ms 18524 KB Output is correct
38 Correct 4 ms 17756 KB Output is correct
39 Correct 76 ms 21596 KB Output is correct
40 Correct 80 ms 21784 KB Output is correct
41 Correct 77 ms 22100 KB Output is correct
42 Correct 70 ms 22104 KB Output is correct
43 Correct 49 ms 21864 KB Output is correct
44 Correct 39 ms 21840 KB Output is correct
45 Correct 82 ms 24488 KB Output is correct
46 Correct 69 ms 27872 KB Output is correct
47 Correct 109 ms 25612 KB Output is correct
48 Correct 187 ms 36948 KB Output is correct
49 Correct 178 ms 35700 KB Output is correct
50 Correct 106 ms 25600 KB Output is correct
51 Correct 121 ms 25428 KB Output is correct
52 Correct 177 ms 25424 KB Output is correct
53 Correct 127 ms 24400 KB Output is correct
54 Correct 115 ms 24424 KB Output is correct
55 Correct 9 ms 16220 KB Output is correct
56 Correct 9 ms 16220 KB Output is correct
57 Correct 58 ms 23000 KB Output is correct
58 Correct 30 ms 23492 KB Output is correct
59 Correct 77 ms 31144 KB Output is correct
60 Correct 292 ms 42712 KB Output is correct
61 Correct 113 ms 25440 KB Output is correct
62 Correct 116 ms 27524 KB Output is correct
63 Correct 179 ms 29672 KB Output is correct
64 Correct 233 ms 29384 KB Output is correct
65 Correct 134 ms 25424 KB Output is correct
66 Correct 229 ms 37856 KB Output is correct
67 Correct 80 ms 32356 KB Output is correct
68 Correct 162 ms 29416 KB Output is correct
69 Correct 157 ms 29136 KB Output is correct
70 Correct 133 ms 28500 KB Output is correct