Submission #337104

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
337104	2020-12-18 13:23:03	jhnah917	Synchronization (JOI13_synchronization)	C++14	100 / 100	121 ms	11136 KiB

synchronization

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
#include <bits/stdc++.h>
#define x first
#define y second
#define all(v) v.begin(), v.end()
#define compress(v) sort(all(v)), v.erase(unique(all(v)), v.end())
using namespace std;
typedef long long ll;
struct Node{
    Node *l, *r, *p; int val;
    Node() : Node(1) {}
    Node(int val) : l(nullptr), r(nullptr), p(nullptr), val(val) {}
    bool IsLeft() const { return this == p->l; }
    bool IsRoot() const { return !p || (p->l != this && p->r != this); }
    void Rotate(){
        if(IsRoot()) return;
        if(IsLeft()){
            if(r) r->p = p; p->l = r; r = p;
        }
        else{
            if(l) l->p = p; p->r = l; l = p;
        }
        if(!p->IsRoot()) (p->IsLeft() ? p->p->l : p->p->r) = this;
        auto t = p; p = t->p; t->p = this;
    }
};
void Splay(Node *x){
    for(; !x->IsRoot(); x->Rotate()){
        if(!x->p->IsRoot()){
 
 
הההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההה
XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX

Compilation message (stderr)

synchronization.cpp: In member function 'void Node::Rotate()':
synchronization.cpp:19:13: warning: this 'if' clause does not guard... [-Wmisleading-indentation]
   19 |             if(r) r->p = p; p->l = r; r = p;
      |             ^~
synchronization.cpp:19:29: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the 'if'
   19 |             if(r) r->p = p; p->l = r; r = p;
      |                             ^
synchronization.cpp:22:13: warning: this 'if' clause does not guard... [-Wmisleading-indentation]
   22 |             if(l) l->p = p; p->r = l; l = p;
      |             ^~
synchronization.cpp:22:29: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the 'if'
   22 |             if(l) l->p = p; p->r = l; l = p;
      |                             ^

• Subtask 1: 10 / 10
• Subtask 2: 20 / 20
• Subtask 3: 10 / 10
• Subtask 4: 20 / 20
• Subtask 5: 40 / 40