13 lines
248 B
C++
13 lines
248 B
C++
#include<bits/stdc++.h>
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using namespace std;
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int main(){
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set<int>s;
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s.insert(2);
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s.insert(3);
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auto it = s.lower_bound(2);
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cout<<(*(--it))<<endl;
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cout<<(*(++it))<<endl;
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cout<<(*(--it))<<endl;
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cout<<(*(--it))<<endl;
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} |