19 lines
456 B
C++
19 lines
456 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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set<int>::iterator iter;
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for(int i = 1 ; i <= 5; ++i) {
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s.insert(i);
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}
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for(iter = s.begin() ; iter != s.end() ; ++iter) {
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cout<<*iter<<" ";
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}
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cout<<endl;
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pair<set<int>::const_iterator,set<int>::const_iterator> pr;
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pr = s.equal_range(3);
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cout<<"第一个大于等于 3 的数是 ："<<*pr.first<<endl;
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cout<<"第一个大于 3的数是 ： "<<*pr.second<<endl;
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return 0;
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}
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