oj.uz

Submission #915304

# Submission time Handle Problem Language Result Execution time Memory
915304 2024-01-23T16:17:24 Z Amirreza_Fakhri Construction of Highway (JOI18_construction) C++17
100 / 100
 226 ms 51284 KB 
// In the name of the God
#include <bits/stdc++.h>
#define ll long long
#define int long long
#define pb push_back
#define F first
#define S second
#define mp make_pair
#define pii pair <int, int>
#define smin(x, y) (x) = min((x), (y))
#define smax(x, y) (x) = max((x), (y))
#define all(x) (x).begin(), (x).end()
using namespace std;

const int inf = 1e9+7;
const int mod = 998244353;
const int maxn = 5e5+5;

int n, c[maxn], par[maxn], he[maxn], node[maxn], heavy[maxn], head[maxn], fen[maxn];
vector <int> uni, adj[maxn];
vector <pii> ch[maxn], vec1, vec2;

int dfs1(int v = 0) {
    int sz = 1, mx = 0;
    heavy[v] = -1;
    for (int u : adj[v]) {
        int csz = dfs1(u);
        sz += csz;
        if (csz > mx) mx = csz, heavy[v] = u;
    }
    return sz;
}

void dfs2(int v = 0) {
    for (int u : adj[v]) {
        if (u == heavy[v]) head[u] = head[v];
        else head[u] = u;
        dfs2(u);
    }
}

int get(int i) {
    int ans = 0;
    for (i++; i; i -= i&-i) ans += fen[i-1];
    return ans;
}

void upd(int i, int x) {
    for (i++; i <= n; i += i&-i) fen[i-1] += x;
}

int processs(int v) {
    int ans = 0;
    while (v != -1) {
        int last = he[head[v]]-1;
        for (int i = ch[head[v]].size()-1; i >= 0; i--) {
            vec1.pb(mp(min(ch[head[v]][i].F, he[v])-last, ch[head[v]][i].S));
            last = ch[head[v]][i].F;
            if (last >= he[v]) break;
        }
        for (int i = vec1.size()-1; i >= 0; i--) {
            vec2.pb(vec1[i]);
            ans += get(vec1[i].S-1)*vec1[i].F;
            upd(vec1[i].S, vec1[i].F);
        }
        vec1.clear();
        v = par[head[v]];
    }
    for (int i = 0; i < vec2.size(); i++) upd(vec2[i].S, -vec2[i].F);
    vec2.clear();
    return ans;
}

void amir(int v) {
    int x = c[v];
    while (v != -1) {
        for (int i = ch[head[v]].size()-1; i >= 0; i--) {
            if (ch[head[v]][i].F > he[v]) break;
            ch[head[v]].pop_back();
        }
        ch[head[v]].pb(mp(he[v], x));
        v = par[head[v]];
    }
}

int32_t main() {
    ios::sync_with_stdio(0); cin.tie(0); cout.tie(0);
    cin >> n;
    for (int i = 0; i < n; i++) {
        cin >> c[i];
        uni.pb(c[i]);
    }
    sort(all(uni)); uni.resize(unique(all(uni))-uni.begin());
    for (int i = 0; i < n; i++) c[i] = lower_bound(all(uni), c[i])-uni.begin();
    par[0] = -1;
    for (int i = 0; i < n-1; i++) {
        int v, u; cin >> v >> u;
        adj[--v].pb(--u);
        par[u] = v;
        he[u] = he[v]+1;
        node[i] = u;
    }
    dfs1(), dfs2();
    ch[0].pb(mp(0, c[0]));
    for (int i = 0; i < n-1; i++) {
        cout << processs(par[node[i]]) << '\n';
        amir(node[i]);
    }
    return 0;
}

Compilation message

construction.cpp: In function 'long long int processs(long long int)':
construction.cpp:69:23: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<std::pair<long long int, long long int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   69 |     for (int i = 0; i < vec2.size(); i++) upd(vec2[i].S, -vec2[i].F);
      |                     ~~^~~~~~~~~~~~~

Subtask #1
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 10 ms 33372 KB Output is correct
2 Correct 9 ms 35536 KB Output is correct
3 Correct 10 ms 35420 KB Output is correct
4 Correct 9 ms 35456 KB Output is correct
5 Correct 10 ms 33372 KB Output is correct
6 Correct 10 ms 35572 KB Output is correct
7 Correct 10 ms 33372 KB Output is correct
8 Correct 10 ms 33372 KB Output is correct
9 Correct 11 ms 33476 KB Output is correct
10 Correct 10 ms 33372 KB Output is correct
11 Correct 11 ms 33880 KB Output is correct
12 Correct 9 ms 33372 KB Output is correct
13 Correct 9 ms 33552 KB Output is correct
14 Correct 9 ms 33372 KB Output is correct
15 Correct 9 ms 33372 KB Output is correct
16 Correct 10 ms 33372 KB Output is correct
17 Correct 9 ms 33372 KB Output is correct
18 Correct 10 ms 33372 KB Output is correct
19 Correct 11 ms 33372 KB Output is correct
20 Correct 9 ms 33368 KB Output is correct
21 Correct 10 ms 33372 KB Output is correct
22 Correct 9 ms 33372 KB Output is correct
23 Correct 10 ms 33372 KB Output is correct
24 Correct 9 ms 33372 KB Output is correct
25 Correct 10 ms 33468 KB Output is correct
26 Correct 9 ms 33544 KB Output is correct
27 Correct 10 ms 33368 KB Output is correct
28 Correct 9 ms 33372 KB Output is correct
29 Correct 9 ms 33372 KB Output is correct
30 Correct 10 ms 33372 KB Output is correct
31 Correct 11 ms 33368 KB Output is correct
32 Correct 10 ms 33372 KB Output is correct
33 Correct 10 ms 33372 KB Output is correct
34 Correct 9 ms 33372 KB Output is correct
35 Correct 9 ms 33368 KB Output is correct
36 Correct 9 ms 33372 KB Output is correct
37 Correct 11 ms 33412 KB Output is correct
38 Correct 9 ms 33372 KB Output is correct
39 Correct 10 ms 33420 KB Output is correct
40 Correct 10 ms 33368 KB Output is correct
41 Correct 10 ms 33372 KB Output is correct
42 Correct 10 ms 33452 KB Output is correct
43 Correct 9 ms 33372 KB Output is correct
44 Correct 10 ms 33368 KB Output is correct

Subtask #2
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 10 ms 33372 KB Output is correct
2 Correct 9 ms 35536 KB Output is correct
3 Correct 10 ms 35420 KB Output is correct
4 Correct 9 ms 35456 KB Output is correct
5 Correct 10 ms 33372 KB Output is correct
6 Correct 10 ms 35572 KB Output is correct
7 Correct 10 ms 33372 KB Output is correct
8 Correct 10 ms 33372 KB Output is correct
9 Correct 11 ms 33476 KB Output is correct
10 Correct 10 ms 33372 KB Output is correct
11 Correct 11 ms 33880 KB Output is correct
12 Correct 9 ms 33372 KB Output is correct
13 Correct 9 ms 33552 KB Output is correct
14 Correct 9 ms 33372 KB Output is correct
15 Correct 9 ms 33372 KB Output is correct
16 Correct 10 ms 33372 KB Output is correct
17 Correct 9 ms 33372 KB Output is correct
18 Correct 10 ms 33372 KB Output is correct
19 Correct 11 ms 33372 KB Output is correct
20 Correct 9 ms 33368 KB Output is correct
21 Correct 10 ms 33372 KB Output is correct
22 Correct 9 ms 33372 KB Output is correct
23 Correct 10 ms 33372 KB Output is correct
24 Correct 9 ms 33372 KB Output is correct
25 Correct 10 ms 33468 KB Output is correct
26 Correct 9 ms 33544 KB Output is correct
27 Correct 10 ms 33368 KB Output is correct
28 Correct 9 ms 33372 KB Output is correct
29 Correct 9 ms 33372 KB Output is correct
30 Correct 10 ms 33372 KB Output is correct
31 Correct 11 ms 33368 KB Output is correct
32 Correct 10 ms 33372 KB Output is correct
33 Correct 10 ms 33372 KB Output is correct
34 Correct 9 ms 33372 KB Output is correct
35 Correct 9 ms 33368 KB Output is correct
36 Correct 9 ms 33372 KB Output is correct
37 Correct 11 ms 33412 KB Output is correct
38 Correct 9 ms 33372 KB Output is correct
39 Correct 10 ms 33420 KB Output is correct
40 Correct 10 ms 33368 KB Output is correct
41 Correct 10 ms 33372 KB Output is correct
42 Correct 10 ms 33452 KB Output is correct
43 Correct 9 ms 33372 KB Output is correct
44 Correct 10 ms 33368 KB Output is correct
45 Correct 10 ms 33368 KB Output is correct
46 Correct 14 ms 35664 KB Output is correct
47 Correct 14 ms 35676 KB Output is correct
48 Correct 16 ms 37724 KB Output is correct
49 Correct 12 ms 35932 KB Output is correct
50 Correct 13 ms 35872 KB Output is correct
51 Correct 12 ms 35932 KB Output is correct
52 Correct 12 ms 35932 KB Output is correct
53 Correct 12 ms 36040 KB Output is correct
54 Correct 12 ms 35928 KB Output is correct
55 Correct 12 ms 35932 KB Output is correct
56 Correct 12 ms 35928 KB Output is correct
57 Correct 15 ms 35676 KB Output is correct
58 Correct 14 ms 35676 KB Output is correct
59 Correct 15 ms 35676 KB Output is correct
60 Correct 15 ms 35676 KB Output is correct
61 Correct 12 ms 35928 KB Output is correct
62 Correct 13 ms 35676 KB Output is correct
63 Correct 12 ms 35932 KB Output is correct
64 Correct 13 ms 35676 KB Output is correct
65 Correct 13 ms 35676 KB Output is correct
66 Correct 15 ms 35764 KB Output is correct
67 Correct 13 ms 35784 KB Output is correct
68 Correct 12 ms 35932 KB Output is correct
69 Correct 13 ms 36028 KB Output is correct
70 Correct 11 ms 35968 KB Output is correct
71 Correct 12 ms 35676 KB Output is correct
72 Correct 14 ms 35848 KB Output is correct
73 Correct 16 ms 35928 KB Output is correct
74 Correct 13 ms 35676 KB Output is correct
75 Correct 14 ms 35672 KB Output is correct
76 Correct 12 ms 35676 KB Output is correct
77 Correct 12 ms 35716 KB Output is correct
78 Correct 12 ms 35676 KB Output is correct
79 Correct 12 ms 35672 KB Output is correct
80 Correct 12 ms 35676 KB Output is correct
81 Correct 13 ms 35636 KB Output is correct
82 Correct 13 ms 35676 KB Output is correct
83 Correct 12 ms 35692 KB Output is correct
84 Correct 12 ms 35676 KB Output is correct
85 Correct 12 ms 35836 KB Output is correct
86 Correct 13 ms 35676 KB Output is correct

Subtask #3
84.0 / 84.0

# Verdict Execution time Memory Grader output
1 Correct 10 ms 33372 KB Output is correct
2 Correct 9 ms 35536 KB Output is correct
3 Correct 10 ms 35420 KB Output is correct
4 Correct 9 ms 35456 KB Output is correct
5 Correct 10 ms 33372 KB Output is correct
6 Correct 10 ms 35572 KB Output is correct
7 Correct 10 ms 33372 KB Output is correct
8 Correct 10 ms 33372 KB Output is correct
9 Correct 11 ms 33476 KB Output is correct
10 Correct 10 ms 33372 KB Output is correct
11 Correct 11 ms 33880 KB Output is correct
12 Correct 9 ms 33372 KB Output is correct
13 Correct 9 ms 33552 KB Output is correct
14 Correct 9 ms 33372 KB Output is correct
15 Correct 9 ms 33372 KB Output is correct
16 Correct 10 ms 33372 KB Output is correct
17 Correct 9 ms 33372 KB Output is correct
18 Correct 10 ms 33372 KB Output is correct
19 Correct 11 ms 33372 KB Output is correct
20 Correct 9 ms 33368 KB Output is correct
21 Correct 10 ms 33372 KB Output is correct
22 Correct 9 ms 33372 KB Output is correct
23 Correct 10 ms 33372 KB Output is correct
24 Correct 9 ms 33372 KB Output is correct
25 Correct 10 ms 33468 KB Output is correct
26 Correct 9 ms 33544 KB Output is correct
27 Correct 10 ms 33368 KB Output is correct
28 Correct 9 ms 33372 KB Output is correct
29 Correct 9 ms 33372 KB Output is correct
30 Correct 10 ms 33372 KB Output is correct
31 Correct 11 ms 33368 KB Output is correct
32 Correct 10 ms 33372 KB Output is correct
33 Correct 10 ms 33372 KB Output is correct
34 Correct 9 ms 33372 KB Output is correct
35 Correct 9 ms 33368 KB Output is correct
36 Correct 9 ms 33372 KB Output is correct
37 Correct 11 ms 33412 KB Output is correct
38 Correct 9 ms 33372 KB Output is correct
39 Correct 10 ms 33420 KB Output is correct
40 Correct 10 ms 33368 KB Output is correct
41 Correct 10 ms 33372 KB Output is correct
42 Correct 10 ms 33452 KB Output is correct
43 Correct 9 ms 33372 KB Output is correct
44 Correct 10 ms 33368 KB Output is correct
45 Correct 10 ms 33368 KB Output is correct
46 Correct 14 ms 35664 KB Output is correct
47 Correct 14 ms 35676 KB Output is correct
48 Correct 16 ms 37724 KB Output is correct
49 Correct 12 ms 35932 KB Output is correct
50 Correct 13 ms 35872 KB Output is correct
51 Correct 12 ms 35932 KB Output is correct
52 Correct 12 ms 35932 KB Output is correct
53 Correct 12 ms 36040 KB Output is correct
54 Correct 12 ms 35928 KB Output is correct
55 Correct 12 ms 35932 KB Output is correct
56 Correct 12 ms 35928 KB Output is correct
57 Correct 15 ms 35676 KB Output is correct
58 Correct 14 ms 35676 KB Output is correct
59 Correct 15 ms 35676 KB Output is correct
60 Correct 15 ms 35676 KB Output is correct
61 Correct 12 ms 35928 KB Output is correct
62 Correct 13 ms 35676 KB Output is correct
63 Correct 12 ms 35932 KB Output is correct
64 Correct 13 ms 35676 KB Output is correct
65 Correct 13 ms 35676 KB Output is correct
66 Correct 15 ms 35764 KB Output is correct
67 Correct 13 ms 35784 KB Output is correct
68 Correct 12 ms 35932 KB Output is correct
69 Correct 13 ms 36028 KB Output is correct
70 Correct 11 ms 35968 KB Output is correct
71 Correct 12 ms 35676 KB Output is correct
72 Correct 14 ms 35848 KB Output is correct
73 Correct 16 ms 35928 KB Output is correct
74 Correct 13 ms 35676 KB Output is correct
75 Correct 14 ms 35672 KB Output is correct
76 Correct 12 ms 35676 KB Output is correct
77 Correct 12 ms 35716 KB Output is correct
78 Correct 12 ms 35676 KB Output is correct
79 Correct 12 ms 35672 KB Output is correct
80 Correct 12 ms 35676 KB Output is correct
81 Correct 13 ms 35636 KB Output is correct
82 Correct 13 ms 35676 KB Output is correct
83 Correct 12 ms 35692 KB Output is correct
84 Correct 12 ms 35676 KB Output is correct
85 Correct 12 ms 35836 KB Output is correct
86 Correct 13 ms 35676 KB Output is correct
87 Correct 22 ms 38232 KB Output is correct
88 Correct 43 ms 39580 KB Output is correct
89 Correct 162 ms 47820 KB Output is correct
90 Correct 142 ms 47824 KB Output is correct
91 Correct 148 ms 46540 KB Output is correct
92 Correct 87 ms 50468 KB Output is correct
93 Correct 80 ms 50508 KB Output is correct
94 Correct 79 ms 50376 KB Output is correct
95 Correct 87 ms 50968 KB Output is correct
96 Correct 88 ms 51284 KB Output is correct
97 Correct 88 ms 51100 KB Output is correct
98 Correct 91 ms 51276 KB Output is correct
99 Correct 86 ms 48236 KB Output is correct
100 Correct 160 ms 46288 KB Output is correct
101 Correct 212 ms 46504 KB Output is correct
102 Correct 226 ms 46688 KB Output is correct
103 Correct 200 ms 46520 KB Output is correct
104 Correct 92 ms 48292 KB Output is correct
105 Correct 90 ms 48104 KB Output is correct
106 Correct 90 ms 48220 KB Output is correct
107 Correct 126 ms 46028 KB Output is correct
108 Correct 126 ms 47568 KB Output is correct
109 Correct 137 ms 46300 KB Output is correct
110 Correct 67 ms 50180 KB Output is correct
111 Correct 85 ms 50812 KB Output is correct
112 Correct 85 ms 51156 KB Output is correct
113 Correct 73 ms 47836 KB Output is correct
114 Correct 170 ms 46212 KB Output is correct
115 Correct 174 ms 46228 KB Output is correct
116 Correct 84 ms 47820 KB Output is correct
117 Correct 99 ms 47448 KB Output is correct
118 Correct 84 ms 46536 KB Output is correct
119 Correct 86 ms 46408 KB Output is correct
120 Correct 74 ms 46572 KB Output is correct
121 Correct 83 ms 46388 KB Output is correct
122 Correct 74 ms 46060 KB Output is correct
123 Correct 92 ms 47056 KB Output is correct
124 Correct 93 ms 46544 KB Output is correct
125 Correct 96 ms 46588 KB Output is correct
126 Correct 81 ms 46696 KB Output is correct
127 Correct 79 ms 46276 KB Output is correct
128 Correct 86 ms 46192 KB Output is correct