Submission #223404

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
223404	2020-04-15 08:50:44	jamielim	Matching (COCI20_matching)	C++14	18 / 110	31 ms	25344 KiB

matching

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#include <bits/stdc++.h>
using namespace std;
int n;
pair<int,int> arr[100005];
pair<int,int> adj[2][100005];
vector<int> al[100005];
vector<pair<int,int> > hor,ver[100005];
struct node{
  int s,e,m,v;
  node *l,*r;
  node(int S,int E){
    s=S;e=E;m=(s+e)/2;v=0;
    if(s!=e){l=new node(s,m);r=new node(m+1,e);}
  }
  void upd(int x,int add){
    if(s==e){v+=add;return;}
    if(x<=m)l->upd(x,add);
    else r->upd(x,add);
    v=l->v+r->v;
  }
  int qry(int x,int y){
    if(s==x&&e==y)return v;
    if(y<=m)return l->qry(x,y);
    if(x>m)return r->qry(x,y);
    return l->qry(x,m)+r->qry(m+1,y);
  }
}*root; //point modify range sum query
 
 
הההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההה
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Compilation message (stderr)

matching.cpp: In function 'int main()':
matching.cpp:64:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d",&n);
  ~~~~~^~~~~~~~~
matching.cpp:67:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%d%d",&arr[i].first,&arr[i].second);
   ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

• Subtask 1: 5 / 5
• Subtask 2: 6 / 6
• Subtask 3: 7 / 7
• Subtask 4: 0 / 40
• Subtask 5: 0 / 52