제출 #535206

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
535206		fadi57	운세 보기 2 (JOI14_fortune_telling2)	C++14	0 / 100	5 ms	8192 KiB

fortune_telling2

#include<bits/stdc++.h>
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>
using namespace std;
using namespace __gnu_pbds;
const int mx=2e5+900;
const int mx2=1e6+9;
typedef long long ll;
const int mod=998244353 ;
const int SQ=400;
const ll inf=1e9+10;
vector<int>cord,q[mx];
int seg[4*mx],a[mx],b[mx],T[mx];
tree<int,null_type,greater_equal<int>,rb_tree_tag,tree_order_statistics_node_update> s;
int sz;int t;int n,k;
int combin(int x,int y){
  if(t==0){
    return (max(x,y));
  }else{
    return x+y;
  }

}
void update(int node,int l,int r,int idx,int val){
   if(l==idx){
    seg[node]=val;
    return;
   }
    int mid=(l+r)/2;
    if(idx<=mid){
    update(node*2,l,mid,idx,val);
   }else{
    update(node*2+1,mid+1,r,idx,val);
   }

    seg[node]=combin(seg[node*2],seg[node*2+1]);
    return;
  }
  int query(int node,int l,int r,int left,int right){
      if(r<left||l>right){
        return -1;
      }

     if(l>=left&&r<=right){
        return seg[node];
     }
     int mid=(l+r)/2;
     return combin(query(node*2,l,mid,left,right),query(node*2+1,mid+1,r,left,right));
     }

    void upd(int pos,int val){
       update(1,1,sz,pos,val);

    }
    int quer(int x,int y){
       return query(1,1,sz,x,y);

     }

int fin(int x){
  //return upper_bound(cord.begin(),cord.end(),x)-cord.begin();
  }

 int main(){


  cin>>n>>k;
  T[0]=1;
  for(int i=0;i<n;i++){
    cin>>a[i]>>b[i];
    cord.push_back(a[i]); cord.push_back(b[i]);
  }

  for(int i=0;i<k;i++){
     cin>>T[i];
     cord.push_back(T[i]);
  }

  sort(cord.begin(),cord.end()); cord.erase(unique(cord.begin() , cord.end()) , cord.end()) ;


 sz=cord.size();
    for(int i=0;i<n;i++){
    a[i]=fin(a[i]);
  b[i]=fin(b[i]);
  }
  memset(seg,-1,sizeof(seg));
    for(int i=0;i<k;i++){
    T[i]=fin(T[i]);
    upd(T[i],i);
  //  cout<<T[i];
    }

   for(int i=0;i<n;i++){

     int idx=quer(min(a[i],b[i]),max(a[i],b[i])-1);
     q[idx+1].push_back(i);

  }

   t=1;ll ans=0;

   memset(seg,0,sizeof(seg));
    //return 0;

   for (int i=k;i>=0;i--)
	{

		for (int j:q[i])
		{
			int parity;
			//parity=quer(max(a[j],b[j]),sz)%2;
			if(j==0){
                parity^=(b[j]>a[j]);
			}
			ans+=parity ?(min(b[j],a[j])):(max(b[j],a[j]));
		}
		 if(i!=k){upd(T[i],1);}
	}

   cout<<ans;

  }

컴파일 시 표준 에러 (stderr) 메시지

fortune_telling2.cpp: In function 'int fin(int)':
fortune_telling2.cpp:62:3: warning: no return statement in function returning non-void [-Wreturn-type]
   62 |   }
      |   ^
fortune_telling2.cpp: In function 'int main()':
fortune_telling2.cpp:114:23: warning: 'parity' may be used uninitialized in this function [-Wmaybe-uninitialized]
  114 |                 parity^=(b[j]>a[j]);
      |                 ~~~~~~^~~~~~~~~~~~~

• Subtask 1: 0 / 4
• Subtask 2: 0 / 31
• Subtask 3: 0 / 65