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Time Limit: 4000/2000 MS (Java/Others) Memory Limit: 131072/131072 K (Java/Others)
Total Submission(s): 425 Accepted Submission(s): 255
#include<iostream> #include<cstdio> #include<cstring> #include<algorithm> #include<string> #include<vector> #include <ctime> #include<queue> #include<set> #include<map> #include<stack> #include<iomanip> #include<cmath> using namespace std; int main(){ int t; int a[32]; for(int i=0;i<31;i++){ a[i]=(1<<i); } scanf("%d",&t); while(t--){ int n,m; int ans=0; scanf("%d%d",&n,&m); int x =lower_bound(a,a+30,n)-a; for(int i=min(x,m);i>=0;i--){ ans+=(n/a[i]); n%=a[i]; if(n==0) break; } printf("%d\n",ans); } return 0; }
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原文地址:http://www.cnblogs.com/superxuezhazha/p/5701309.html