2010 Asia Chengdu Regional Contest 位运算
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//2010 Asia Chengdu Regional Contest
//http://acm.hdu.edu.cn/webcontest/contest_showproblem.php?pid=1003&ojid=0&cid=3151&hide=0
//简单的位运算题
#include<cstdio>#include<cstring>#include<iostream>#define MAX 0x7fffffffusing namespace std;int c[101];int dif(int a,int b){ int i,cou=0; for(i=20;i>-1;i--){ if((a>>i)^(b>>i)){ cou++; a|=(1<<i); b|=(1<<i); } } return cou;}void fmin(int b,int *a,int &m,int k){ int cou=23,i,j,t; for(i=0;i<m;i++){ if((cou>(j=dif(a[i],b)))||((cou==j)&&(t>a[i]))){ cou=j; t=a[i]; } } c[k]=t;}int main(){ int i,n,m,t,a[101],b[101]; cin>>t; while(t--){ cin>>m>>n; for(i=0;i<m;i++) cin>>a[i]; for(i=0;i<n;i++){ cin>>b[i]; fmin(b[i],a,m,i); } for(i=0;i<n;i++) cout<<c[i]<<endl; } return 0;}
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