Submission #25496

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
25496	2017-06-22 12:48:30	zigui	Synchronization (JOI13_synchronization)	C++14	100 / 100	306 ms	24540 KiB

synchronization

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#define _CRT_SECURE_NO_WARNINGS
#include<vector>
#include<algorithm>
#include<stdio.h>
using namespace std;
const int MX = 2e5;
struct node{
  node *link[2], *par, *path_parent;
};
struct linkcuttree{
  node N[MX];
  void clear(int s){
    for(int i=0;i<s;i++) N[i].link[0] = N[i].link[1] = N[i].par = N[i].path_parent = 0;
  }
  inline int dir(node *x){ return x->par->link[0] != x; }
  void rotate(node *n) // To 
  {
    if( !n->par ) return;
    node *p = n->par;
    int d = dir(n);
    n->path_parent = p->path_parent; p->path_parent = NULL;
    p->link[d] = n->link[!d];   if( n->link[!d] ) n->link[!d]->par = p;
    n->par = p->par;  if( p->par ) p->par->link[ dir(p) ] = n;
 
 
הההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההה
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Compilation message (stderr)

synchronization.cpp: In function 'int main()':
synchronization.cpp:101:29: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d%d%d", &N, &M, &Q);
                             ^
synchronization.cpp:104:24: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%d%d", &a, &b);
                        ^
synchronization.cpp:111:18: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%d", &c);
                  ^
synchronization.cpp:128:18: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%d", &a);
                  ^

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