BZOJ3262: 陌上花開 CDQ

反正就是裸題。。。。先是去重 然後按x排序降一維  在根據y來插排  最後z在樹狀數組上查詢修改就好了
           

#include<cstdio>
#include<iostream>
#include<cstring>
#include<algorithm>
using namespace std;


char c;
inline void read(int &a)
{
	a=0;do c=getchar();while(c<'0'||c>'9');
	while(c<='9'&&c>='0')a=(a<<3)+(a<<1)+c-'0',c=getchar();
}

struct O
{
	int x,y,z,ans,time;
	bool del;
	inline friend bool operator <(O a,O b)
     {return a.x<b.x||(a.x==b.x&&a.y<b.y)||(a.x==b.x&&a.y==b.y&&a.z<b.z);}
}Line[100001];
int n;
int level[100001];
int BIT[600001];
int base;
inline int lowbit(int a){return a&-a;}
inline int Query(int a){
int res=0;
for(int i=a;i;i^=lowbit(i))
res+=BIT[i];
return res;}
inline void Add(int a,int delta){for(int i=a;i<=base;i+=lowbit(i))BIT[i]+=delta;}

inline void Div(int L,int R)
{
	if(L^R)
	{
		int Mid=(L+R)>>1;
	    Div(L,Mid),Div(Mid+1,R);
	    int i,j=L,t;
		for(i=Mid+1;i<=R;i++)
		  {
		  while(Line[j].y<=Line[i].y&&j<=Mid)
		  {
		  	Add(Line[j].z,Line[j].time);
		  	j++;
		  }	
		  Line[i].ans+=Query(Line[i].z);
		  }
		j--;
		while(j>=L)Add(Line[j].z,-Line[j].time),j--;
	    O S[R-L+2];
	    i=Mid+1,j=L,t=0;
	    while(i<=R&&j<=Mid)
	        if(Line[i].y<=Line[j].y)S[++t]=Line[i++];
	        else S[++t]=Line[j++];
	    while(i<=R)S[++t]=Line[i++];
	    while(j<=Mid)S[++t]=Line[j++]; 
	    for(i=1;i<=t;i++)
	        Line[L+i-1]=S[i];
	}
}
O Swap[1000001];

inline void print(int &a)
{
	if(a<10){putchar('0'+a),putchar('\n');return;}
    long long base=1;
    while(base<=a)base=(base<<3)+(base<<1);
    base/=10;
    while(base)putchar('0'+a/base),a%=base,base/=10;
    putchar('\n');
}

int main()
{
	int k;
	read(n),read(k);
	int i;
	base=1;
	while(base<=k)base<<=1;
	int last=1;
	for(i=1;i<=n;i++)
	   read(Line[i].x),read(Line[i].y),read(Line[i].z),Line[i].ans=0,Line[i].del=0,Line[i].time=1; 
    	sort(Line+1,Line+1+n);
	for(i=2;i<=n;i++)
	   if(Line[i].x==Line[last].x&&Line[i].y==Line[last].y&&Line[i].z==Line[last].z)
          Line[last].time++,Line[i].del=true;
        else last=i;
 	int con=0;
	for(i=1;i<=n;i++)
	   if(!Line[i].del) Swap[++con]=Line[i];
	for(i=1;i<=con;i++)
	   Line[i]=Swap[i];
	Div(1,con);
	for(i=1;i<=con;i++)
	   level[Line[i].ans+Line[i].time-1]+=Line[i].time;
	for(i=1;i<=n;i++)
	  print(level[i-1]);
	return 0;
}