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#include<iostream> #include<cstring> #include<cstdio> using namespace std; const int Size = 1000000; int Hash[Size+1]; int main() { int n, m, num; while(cin>>n>>m) { memset(Hash, 0, sizeof(Hash)); for(int i=0; i<n; i++){ scanf("%d",&num); Hash[num+500000]=1; } for(int i=Size, j=0; j<m; i--) { if(Hash[i]){ if(j) printf(" "); printf("%d",i-500000); j++; } } cout<<endl; } return 0; }
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原文地址:http://www.cnblogs.com/FightForCMU/p/4712330.html