CF600 B. Queries about less or equal elements
题目传送门:https://codeforces.com/problemset/problem/600/B
题目大意:
给定长度为\(n\)的序列\(A\)和长度为\(m\)的序列\(B\),对于\(B_i\)找到\(A_j\leqslant B_i\)的个数
排序,二分
乱搞就完事
/*program from Wolfycz*/
#include<map>
#include<cmath>
#include<cstdio>
#include<vector>
#include<cstring>
#include<iostream>
#include<algorithm>
#define Fi first
#define Se second
#define ll_inf 1e18
#define MK make_pair
#define sqr(x) ((x)*(x))
#define pii pair<int,int>
#define int_inf 0x7f7f7f7f
using namespace std;
typedef long long ll;
typedef unsigned int ui;
typedef unsigned long long ull;
inline char gc(){
static char buf[1000000],*p1=buf,*p2=buf;
return p1==p2&&(p2=(p1=buf)+fread(buf,1,1000000,stdin),p1==p2)?EOF:*p1++;
}
template<typename T>inline T frd(T x){
int f=1; char ch=gc();
for (;ch<'0'||ch>'9';ch=gc()) if (ch=='-') f=-1;
for (;ch>='0'&&ch<='9';ch=gc()) x=(x<<1)+(x<<3)+ch-'0';
return x*f;
}
template<typename T>inline T read(T x){
int f=1; char ch=getchar();
for (;ch<'0'||ch>'9';ch=getchar()) if (ch=='-') f=-1;
for (;ch>='0'&&ch<='9';ch=getchar()) x=(x<<1)+(x<<3)+ch-'0';
return x*f;
}
inline void print(int x){
if (x<0) putchar('-'),x=-x;
if (x>9) print(x/10);
putchar(x%10+'0');
}
const int N=2e5;
int A[N+10];
int main(){
// freopen(".in","r",stdin);
// freopen(".out","w",stdout);
int n=read(0),m=read(0);
for (int i=1;i<=n;i++) A[i]=read(0);
sort(A+1,A+1+n);
for (int i=1;i<=m;i++){
int pos=upper_bound(A+1,A+1+n,read(0))-A;
printf("%d%c",pos-1,i==m?'\n':' ');
}
return 0;
}