# include<iostream> #include<cstdio> using namespace std; int a[200001],b[100001]={0}; int main(){ int n,max=0,c = 1; //c是用来判断是否存在0 cin>>n; for(int i=1;i<=n;i++){ cin>>a[i]; b[a[i]] = a[i]; if(max<a[i]){ max = a[i]; } if(a[i]==0){ c = 0; } } //输出 if(c==0){ cout<<0<<' '; } for(int i=1;i<=max;i++){ if(b[i]==0){ continue; } cout<<b[i]<<' '; } return 0; }