#include<bits/stdc++.h> using namespace std; int a[100010]; int cnt[100010];//去重数组 int main(){ int n; cin>>n; for(int i=1;i<=n;i++){ cin>>a[i]; } for(int i=1;i<=n;i++){ if(cnt[a[i]]==0){//判断是否有标记 cout<<a[i]<<" "; cnt[a[i]]=1;//进行标记 } } return 0;//完了 }
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