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<span style="font-size:18px;">#include <iostream>
#include <cstdio>
#include <cstring>
#include <stack>
#include <queue>
#include <map>
#include <set>
#include <vector>
#include <cmath>
#include <algorithm>
using namespace std;
const double eps = 1e-6;
const double pi = acos(-1.0);
const int INF = 0x3f3f3f3f;
const int MOD = 1000000007;
#define ll long long
#define CL(a,b) memset(a,b,sizeof(a))
#define MAXN 32010
int n,a[MAXN],sum[MAXN];
int lowbit(int x){ return x&(-x);}
int Sum(int n)///前n项的和
{
int s = 0;
while(n > 0)
{
s += a[n];
n -= lowbit(n);
}
return s;
}
void add(int x)///增加某个元素的大小
{
while(x <= MAXN)
{
++a[x];
x += lowbit(x);
}
}
int main()
{
int x,y;
while(~scanf("%d",&n))
{
CL(a, 0);
CL(sum, 0);
for(int i=0; i<n; i++)
{
scanf("%d%d",&x,&y);
x++;
sum[Sum(x)]++;
add(x);
}
for(int i=0; i<n; i++)
cout<<sum[i]<<endl;
}
return 0;
}
</span>原文:http://blog.csdn.net/d_x_d/article/details/50759728