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树状数组不解释,注意0&0会死循环#include<iostream>
#include<cstring>
#include<cstdio>
#include<algorithm>
#include<set>
#include<vector>
using namespace std;
const int maxn=3e4+2010;
int a[15000+10],c[maxn];
int lowbit(int x)
{
return x&(-x);
}
void update(int x)
{
while(x<=maxn)
{
c[x]+=1;
x+=lowbit(x);
}
}
int sum(int x)
{
int sum1=0;
while(x>0)
{
sum1+=c[x];
x-=lowbit(x);
}
return sum1;
}
int main()
{
int n;
while(~scanf("%d",&n))
{
memset(c,0,sizeof(c));
memset(a,0,sizeof(a));
for(int i=1;i<=n;i++)
{
int x,y;
scanf("%d %d",&x,&y);
int num=sum(x+1);
a[num+1]++;
update(x+1);
}
for(int i=1;i<=n;i++)
printf("%d\n",a[i]);
}
return 0;
}
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