oj.uz

Submission #1008424

# Submission time Handle Problem Language Result Execution time Memory
1008424 2024-06-26T12:18:25 Z 12345678 Closing Time (IOI23_closing) C++17
35 / 100
 1000 ms 70472 KB 
#include "closing.h"
#include <bits/stdc++.h>

using namespace std;

#define ll long long
#pragma gcc-optimize("O3, unrolls-loops")

const int nx=2e5+5;

vector<pair<ll, ll>> g[nx];

struct segtree
{
    struct node
    {
        ll sm, f;
        node(ll sm=0, ll f=0): sm(sm), f(f){}
        friend node operator+(const node &a, const node &b) {return node(a.sm+b.sm, a.f+b.f);}
    } d[4*nx];
    void build(int l, int r, int i)
    {
        d[i]=node(0, 0);
        if (l==r) return;
        int md=(l+r)/2;
        build(l, md, 2*i);
        build(md+1, r, 2*i+1);
    }
    void update(int l, int r, int i, int idx, int f, ll vl)
    {
        if (idx<l||r<idx) return;
        if (l==r) return d[i]=node(d[i].sm+f*vl, d[i].f+f), void();
        int md=(l+r)/2;
        update(l, md, 2*i, idx, f, vl);
        update(md+1, r, 2*i+1, idx, f, vl);
        d[i]=d[2*i]+d[2*i+1];
    }
    ll query(int l, int r, int i, ll vl)
    {
        if (vl>=d[i].sm) return d[i].f;
        if (l==r) return 0;
        int md=(l+r)/2;
        if (d[2*i].sm>vl) return query(l, md, 2*i, vl);
        else return d[2*i].f+query(md+1, r, 2*i+1, vl-d[2*i].sm);
    }
} s;

void dfs(int u, int p, ll cw, vector<ll> &x)
{
    x[u]=cw;
    for (auto [v, w]:g[u]) if (v!=p) dfs(v, u, cw+w, x);
}

int max_score(int N, int X, int Y, long long K,
              std::vector<int> U, std::vector<int> V, std::vector<int> W)
{
    if (X>Y) swap(X, Y);
    for (int i=0; i<N; i++) g[i].clear();
    for (int i=0; i<N-1; i++) g[U[i]].push_back({V[i], W[i]}), g[V[i]].push_back({U[i], W[i]});
    vector<ll> a(N), b(N), idxa(N), idxb(N);
    ll mx=0, t=0;
    map<pair<ll, ll>, ll> mp;
    dfs(X, X, 0, a);
    dfs(Y, Y, 0, b);
    for (int i=0; i<N; i++) mp[{a[i], 1}]=0, mp[{b[i], 2}]=0;
    for (auto &[x, y]:mp) y=++t;
    for (int i=0; i<N; i++) idxa[i]=mp[{a[i], 1}], idxb[i]=mp[{b[i], 2}];
    priority_queue<ll, vector<ll>, greater<ll>> pq;
    for (int i=0; i<N; i++) pq.push(a[i]), pq.push(b[i]);
    ll tmp=K;
    while (!pq.empty()&&pq.top()<=tmp) mx++, tmp-=pq.top(), pq.pop();
    for (int i=0; i<N; i++)
    {
        s.build(1, 2*N, 1);
        ll cur=0, res=0;
        for (int j=0; j<=min(i-1, X); j++) s.update(1, 2*N, 1, idxa[j], 1, a[j]);
        for (int j=X+1; j<i; j++) cur+=a[j], res++;
        for (int j=i; j<Y; j++) cur+=b[j], res++;
        for (int j=max(i, Y); j<N; j++) s.update(1, 2*N, 1, idxb[j], 1, b[j]);
        for (int j=i; j<N; j++)
        {
            cur+=max(a[j], b[j]);
            res+=2;
            if (j<Y) res--, cur-=b[j];
            else s.update(1, 2*N, 1, idxb[j], -1, b[j]);
            if (cur>K) break;
            mx=max(mx, res+s.query(1, 2*N, 1, K-cur));
        }
    }
    return mx;
}

Compilation message

closing.cpp:7: warning: ignoring '#pragma gcc ' [-Wunknown-pragmas]
    7 | #pragma gcc-optimize("O3, unrolls-loops")
      |

Subtask #0
0.0 / 0.0

# Verdict Execution time Memory Grader output
1 Incorrect 4 ms 17500 KB 1st lines differ - on the 1st token, expected: '6', found: '5'
2 Halted 0 ms 0 KB -

Subtask #1
0.0 / 8.0

# Verdict Execution time Memory Grader output
1 Execution timed out 1033 ms 70472 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #2
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 17496 KB Output is correct
2 Correct 5 ms 17496 KB Output is correct
3 Correct 4 ms 17500 KB Output is correct
4 Correct 4 ms 17500 KB Output is correct
5 Correct 5 ms 17500 KB Output is correct
6 Correct 4 ms 17480 KB Output is correct
7 Correct 5 ms 17500 KB Output is correct
8 Correct 5 ms 17500 KB Output is correct
9 Correct 4 ms 17500 KB Output is correct
10 Correct 4 ms 17496 KB Output is correct
11 Correct 5 ms 17500 KB Output is correct

Subtask #3
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 17496 KB Output is correct
2 Correct 5 ms 17496 KB Output is correct
3 Correct 4 ms 17500 KB Output is correct
4 Correct 4 ms 17500 KB Output is correct
5 Correct 5 ms 17500 KB Output is correct
6 Correct 4 ms 17480 KB Output is correct
7 Correct 5 ms 17500 KB Output is correct
8 Correct 5 ms 17500 KB Output is correct
9 Correct 4 ms 17500 KB Output is correct
10 Correct 4 ms 17496 KB Output is correct
11 Correct 5 ms 17500 KB Output is correct
12 Correct 6 ms 17500 KB Output is correct
13 Correct 5 ms 17500 KB Output is correct
14 Correct 5 ms 17500 KB Output is correct
15 Correct 4 ms 17496 KB Output is correct
16 Correct 4 ms 17500 KB Output is correct
17 Correct 5 ms 17500 KB Output is correct
18 Correct 5 ms 17500 KB Output is correct
19 Correct 17 ms 17756 KB Output is correct
20 Correct 9 ms 17768 KB Output is correct
21 Correct 10 ms 17752 KB Output is correct
22 Correct 9 ms 17752 KB Output is correct
23 Correct 6 ms 17752 KB Output is correct
24 Correct 7 ms 17756 KB Output is correct

Subtask #4
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 17496 KB Output is correct
2 Correct 5 ms 17496 KB Output is correct
3 Correct 4 ms 17500 KB Output is correct
4 Correct 4 ms 17500 KB Output is correct
5 Correct 5 ms 17500 KB Output is correct
6 Correct 4 ms 17480 KB Output is correct
7 Correct 5 ms 17500 KB Output is correct
8 Correct 5 ms 17500 KB Output is correct
9 Correct 4 ms 17500 KB Output is correct
10 Correct 4 ms 17496 KB Output is correct
11 Correct 5 ms 17500 KB Output is correct
12 Correct 6 ms 17500 KB Output is correct
13 Correct 5 ms 17500 KB Output is correct
14 Correct 5 ms 17500 KB Output is correct
15 Correct 4 ms 17496 KB Output is correct
16 Correct 4 ms 17500 KB Output is correct
17 Correct 5 ms 17500 KB Output is correct
18 Correct 5 ms 17500 KB Output is correct
19 Correct 17 ms 17756 KB Output is correct
20 Correct 9 ms 17768 KB Output is correct
21 Correct 10 ms 17752 KB Output is correct
22 Correct 9 ms 17752 KB Output is correct
23 Correct 6 ms 17752 KB Output is correct
24 Correct 7 ms 17756 KB Output is correct
25 Correct 10 ms 17500 KB Output is correct
26 Correct 604 ms 18500 KB Output is correct
27 Correct 276 ms 18264 KB Output is correct
28 Correct 42 ms 18520 KB Output is correct
29 Correct 227 ms 18388 KB Output is correct
30 Correct 227 ms 18264 KB Output is correct
31 Correct 41 ms 18520 KB Output is correct
32 Correct 43 ms 18524 KB Output is correct

Subtask #5
0.0 / 9.0

# Verdict Execution time Memory Grader output
1 Incorrect 4 ms 17500 KB 1st lines differ - on the 1st token, expected: '6', found: '5'
2 Halted 0 ms 0 KB -

Subtask #6
0.0 / 11.0

# Verdict Execution time Memory Grader output
1 Incorrect 4 ms 17500 KB 1st lines differ - on the 1st token, expected: '6', found: '5'
2 Halted 0 ms 0 KB -

Subtask #7
0.0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 4 ms 17500 KB 1st lines differ - on the 1st token, expected: '6', found: '5'
2 Halted 0 ms 0 KB -

Subtask #8
0.0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 4 ms 17500 KB 1st lines differ - on the 1st token, expected: '6', found: '5'
2 Halted 0 ms 0 KB -

Subtask #9
0.0 / 17.0

# Verdict Execution time Memory Grader output
1 Incorrect 4 ms 17500 KB 1st lines differ - on the 1st token, expected: '6', found: '5'
2 Halted 0 ms 0 KB -