标签:style blog http color io os ar for sp
http://acm.hdu.edu.cn/showproblem.php?pid=4544
优先队列+贪心。
1 #include <cstdio> 2 #include <queue> 3 #include <cstring> 4 #include <iostream> 5 #include <algorithm> 6 #define ll long long 7 #define maxn 1000010 8 using namespace std; 9 10 int b[maxn]; 11 struct node 12 { 13 int d; 14 int p; 15 bool operator <(const node &a)const 16 { 17 return d<a.d; 18 } 19 }pp[maxn]; 20 21 int n,m; 22 23 int main() 24 { 25 while(scanf("%d%d",&n,&m)!=EOF) 26 { 27 priority_queue<int,vector<int>,greater<int> >q; 28 for(int i=0; i<n; i++) 29 { 30 scanf("%d",&b[i]); 31 } 32 for(int i=0; i<m; i++) 33 { 34 scanf("%d",&pp[i].d); 35 } 36 for(int i=0; i<m; i++) 37 { 38 scanf("%d",&pp[i].p); 39 } 40 sort(b,b+n); 41 sort(pp,pp+m); 42 int pos=m-1; 43 ll ans=0; 44 bool flag=true; 45 for(int i=n-1; i>=0; i--) 46 { 47 while(pos>=0&&pp[pos].d>=b[i]) 48 { 49 q.push(pp[pos].p); 50 pos--; 51 } 52 if(q.empty()) 53 { 54 flag=false; 55 break; 56 } 57 ans+=q.top(); 58 q.pop(); 59 } 60 if(flag) cout<<ans<<endl; 61 else printf("No\n"); 62 } 63 return 0; 64 }
标签:style blog http color io os ar for sp
原文地址:http://www.cnblogs.com/fanminghui/p/4025034.html