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Submission #1095383

# Submission time Handle Problem Language Result Execution time Memory
1095383 2024-10-02T03:03:00 Z hahahoang132 Cat Exercise (JOI23_ho_t4) C++17
41 / 100
 89 ms 45728 KB 
#include <bits/stdc++.h>
#define ll long long
using namespace std;
#define bit(x,y) ((x >> y) & 1LL)
const ll mod = 1e9 + 7;
const ll N = 1e6 + 5;
const ll inf = LLONG_MAX/4;
ll p[N],h[N],ans[N],tmp[N];
vector<ll> a[N];
ll fp(ll x)
{
    if(p[x] == -1) return x;
    else
    {
        p[x] = fp(p[x]);
        return p[x];
    }
}
void hop(ll x, ll y)
{
    ll px = x;
    ll py = fp(y);
    ans[px] = max(ans[px],ans[py] + abs(h[px] - h[py]));
    p[py] = px;
}
void build(ll x, ll px)
{
    for(auto y : a[x])
    {
        if(y != px)
        {
            h[y] = h[x] + 1;
            build(y,x);
        }
    }
}
int main()
{
    ios_base::sync_with_stdio(false);
    cin.tie(0);
    ll n;
    cin >> n;
    ll i,j;
    for(i = 1;i <= n;i++)
    {
        cin >> tmp[i];
    }
    for(i = 1;i < n;i++)
    {
        ll u,v;
        cin >>  u>> v;
        a[tmp[u]].push_back(tmp[v]);
        a[tmp[v]].push_back(tmp[u]);
    }
    build(n,0);
    for(i = 1;i <= n;i++)
    {
        p[i] = -1;
        ans[i] = 0;
    }
    for(i = 1;i <= n;i++)
    {
        for(auto x : a[i])
        {
            if(x < i) hop(i,x);
        }
    }
    cout << ans[n];
}

Compilation message

Main.cpp: In function 'int main()':
Main.cpp:43:10: warning: unused variable 'j' [-Wunused-variable]
   43 |     ll i,j;
      |          ^

Subtask #1
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 10 ms 23896 KB Output is correct
2 Correct 11 ms 23900 KB Output is correct
3 Correct 11 ms 23820 KB Output is correct
4 Correct 11 ms 23900 KB Output is correct
5 Correct 11 ms 23900 KB Output is correct
6 Correct 10 ms 23900 KB Output is correct
7 Correct 10 ms 23980 KB Output is correct
8 Correct 10 ms 23896 KB Output is correct
9 Correct 11 ms 23900 KB Output is correct
10 Correct 11 ms 23900 KB Output is correct

Subtask #2
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 10 ms 23896 KB Output is correct
2 Correct 11 ms 23900 KB Output is correct
3 Correct 11 ms 23820 KB Output is correct
4 Correct 11 ms 23900 KB Output is correct
5 Correct 11 ms 23900 KB Output is correct
6 Correct 10 ms 23900 KB Output is correct
7 Correct 10 ms 23980 KB Output is correct
8 Correct 10 ms 23896 KB Output is correct
9 Correct 11 ms 23900 KB Output is correct
10 Correct 11 ms 23900 KB Output is correct
11 Correct 12 ms 23900 KB Output is correct
12 Correct 11 ms 23948 KB Output is correct
13 Correct 11 ms 23768 KB Output is correct
14 Correct 11 ms 23928 KB Output is correct
15 Correct 10 ms 23896 KB Output is correct
16 Correct 12 ms 23900 KB Output is correct
17 Correct 11 ms 23900 KB Output is correct

Subtask #3
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 10 ms 23896 KB Output is correct
2 Correct 11 ms 23900 KB Output is correct
3 Correct 11 ms 23820 KB Output is correct
4 Correct 11 ms 23900 KB Output is correct
5 Correct 11 ms 23900 KB Output is correct
6 Correct 10 ms 23900 KB Output is correct
7 Correct 10 ms 23980 KB Output is correct
8 Correct 10 ms 23896 KB Output is correct
9 Correct 11 ms 23900 KB Output is correct
10 Correct 11 ms 23900 KB Output is correct
11 Correct 12 ms 23900 KB Output is correct
12 Correct 11 ms 23948 KB Output is correct
13 Correct 11 ms 23768 KB Output is correct
14 Correct 11 ms 23928 KB Output is correct
15 Correct 10 ms 23896 KB Output is correct
16 Correct 12 ms 23900 KB Output is correct
17 Correct 11 ms 23900 KB Output is correct
18 Correct 13 ms 24412 KB Output is correct
19 Correct 13 ms 24412 KB Output is correct
20 Correct 12 ms 24408 KB Output is correct
21 Correct 12 ms 24412 KB Output is correct
22 Correct 11 ms 24412 KB Output is correct
23 Correct 13 ms 24664 KB Output is correct
24 Correct 13 ms 24220 KB Output is correct

Subtask #4
0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 10 ms 23896 KB Output is correct
2 Correct 11 ms 23900 KB Output is correct
3 Correct 11 ms 23820 KB Output is correct
4 Correct 11 ms 23900 KB Output is correct
5 Correct 11 ms 23900 KB Output is correct
6 Correct 10 ms 23900 KB Output is correct
7 Correct 10 ms 23980 KB Output is correct
8 Correct 10 ms 23896 KB Output is correct
9 Correct 11 ms 23900 KB Output is correct
10 Correct 11 ms 23900 KB Output is correct
11 Correct 12 ms 23900 KB Output is correct
12 Correct 11 ms 23948 KB Output is correct
13 Correct 11 ms 23768 KB Output is correct
14 Correct 11 ms 23928 KB Output is correct
15 Correct 10 ms 23896 KB Output is correct
16 Correct 12 ms 23900 KB Output is correct
17 Correct 11 ms 23900 KB Output is correct
18 Correct 13 ms 24412 KB Output is correct
19 Correct 13 ms 24412 KB Output is correct
20 Correct 12 ms 24408 KB Output is correct
21 Correct 12 ms 24412 KB Output is correct
22 Correct 11 ms 24412 KB Output is correct
23 Correct 13 ms 24664 KB Output is correct
24 Correct 13 ms 24220 KB Output is correct
25 Correct 10 ms 23900 KB Output is correct
26 Correct 13 ms 24408 KB Output is correct
27 Correct 13 ms 24664 KB Output is correct
28 Correct 12 ms 24272 KB Output is correct
29 Correct 11 ms 24328 KB Output is correct
30 Incorrect 12 ms 24156 KB Output isn't correct
31 Halted 0 ms 0 KB -

Subtask #5
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 10 ms 23896 KB Output is correct
2 Correct 11 ms 23900 KB Output is correct
3 Correct 11 ms 23820 KB Output is correct
4 Correct 11 ms 23900 KB Output is correct
5 Correct 11 ms 23900 KB Output is correct
6 Correct 10 ms 23900 KB Output is correct
7 Correct 10 ms 23980 KB Output is correct
8 Correct 10 ms 23896 KB Output is correct
9 Correct 11 ms 23900 KB Output is correct
10 Correct 11 ms 23900 KB Output is correct
11 Correct 12 ms 23900 KB Output is correct
12 Correct 11 ms 23948 KB Output is correct
13 Correct 11 ms 23768 KB Output is correct
14 Correct 11 ms 23928 KB Output is correct
15 Correct 10 ms 23896 KB Output is correct
16 Correct 12 ms 23900 KB Output is correct
17 Correct 11 ms 23900 KB Output is correct
18 Correct 13 ms 24412 KB Output is correct
19 Correct 13 ms 24412 KB Output is correct
20 Correct 12 ms 24408 KB Output is correct
21 Correct 12 ms 24412 KB Output is correct
22 Correct 11 ms 24412 KB Output is correct
23 Correct 13 ms 24664 KB Output is correct
24 Correct 13 ms 24220 KB Output is correct
25 Correct 71 ms 45652 KB Output is correct
26 Correct 83 ms 45728 KB Output is correct
27 Correct 60 ms 45652 KB Output is correct
28 Correct 74 ms 44372 KB Output is correct
29 Correct 87 ms 45140 KB Output is correct
30 Correct 89 ms 44860 KB Output is correct
31 Correct 79 ms 45136 KB Output is correct

Subtask #6
0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 13 ms 23900 KB Output is correct
2 Incorrect 10 ms 23896 KB Output isn't correct
3 Halted 0 ms 0 KB -

Subtask #7
0 / 26.0

# Verdict Execution time Memory Grader output
1 Correct 10 ms 23896 KB Output is correct
2 Correct 11 ms 23900 KB Output is correct
3 Correct 11 ms 23820 KB Output is correct
4 Correct 11 ms 23900 KB Output is correct
5 Correct 11 ms 23900 KB Output is correct
6 Correct 10 ms 23900 KB Output is correct
7 Correct 10 ms 23980 KB Output is correct
8 Correct 10 ms 23896 KB Output is correct
9 Correct 11 ms 23900 KB Output is correct
10 Correct 11 ms 23900 KB Output is correct
11 Correct 12 ms 23900 KB Output is correct
12 Correct 11 ms 23948 KB Output is correct
13 Correct 11 ms 23768 KB Output is correct
14 Correct 11 ms 23928 KB Output is correct
15 Correct 10 ms 23896 KB Output is correct
16 Correct 12 ms 23900 KB Output is correct
17 Correct 11 ms 23900 KB Output is correct
18 Correct 13 ms 24412 KB Output is correct
19 Correct 13 ms 24412 KB Output is correct
20 Correct 12 ms 24408 KB Output is correct
21 Correct 12 ms 24412 KB Output is correct
22 Correct 11 ms 24412 KB Output is correct
23 Correct 13 ms 24664 KB Output is correct
24 Correct 13 ms 24220 KB Output is correct
25 Correct 10 ms 23900 KB Output is correct
26 Correct 13 ms 24408 KB Output is correct
27 Correct 13 ms 24664 KB Output is correct
28 Correct 12 ms 24272 KB Output is correct
29 Correct 11 ms 24328 KB Output is correct
30 Incorrect 12 ms 24156 KB Output isn't correct
31 Halted 0 ms 0 KB -