提交时间:2023-07-16 17:15:31

运行 ID: 23766

#include"bits/stdc++.h" using namespace std; int a[100005]; int n,m,x; int s1(int x){ int l=1,r=n; while(l<r){ int mid=l+r>>1; if(a[mid]>=x)r=mid; else l=mid+1; } return a[l]; } int s2(int x){ int l=1,r=n; while(l<r){ int mid=l+r+1>>1; if(a[mid]<=x)l=mid; else r=mid-1; } return a[l]; } int main(){ cin>>n; for(int i=1;i<=n;i++)cin>>a[i]; cin>>m; while(m--){ cin>>x; if(abs(s1(x)-x)>abs(s2(x)-x)) cout<<s2(x)<<'\n'; else cout<<s1(x)<<'\n'; } }