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HuangHai
2025-08-30 18:35:01 +08:00
commit 1f397eca87
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0
C++专题课程/STL基础知识/set操作基础/.keep Normal file
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C++专题课程/STL基础知识/set操作基础/set的使用_1.cpp Normal file
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#include<bits/stdc++.h>
using namespace std;
int main() {
set<int>s;
int n;
cin>>n;
for(int i=1; i<=n; i++) {
int x;
cin>>x;
s.insert (x);
}
set<int>::iterator it;
for(it=s.begin (); it!=s.end (); it++) {
printf("%d\n",*it);
}
//s.end()û<><C3BB>ֵ
cout<<"s.begin() "<<*s.begin ()<<endl;
//lower_bound()--<2D><><EFBFBD><EFBFBD>ָ<EFBFBD><D6B8><EFBFBD><EFBFBD><EFBFBD>ڣ<EFBFBD><DAA3><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڣ<EFBFBD>ijֵ<C4B3>ĵ<EFBFBD>һ<EFBFBD><D2BB>Ԫ<EFBFBD>صĵ<D8B5><C4B5><EFBFBD><EFBFBD><EFBFBD>
cout<<"lower_buond 3 "<<*s.lower_bound (3)<<endl;
//upper_bound()--<2D><><EFBFBD>ش<EFBFBD><D8B4><EFBFBD>ij<EFBFBD><C4B3>ֵԪ<D6B5>صĵ<D8B5><C4B5><EFBFBD><EFBFBD><EFBFBD>
cout<<"upper_bound 3 "<<*s.upper_bound (3)<<endl;
//find()--<2D><><EFBFBD><EFBFBD>һ<EFBFBD><D2BB>ָ<EFBFBD>򱻲<EFBFBD><F2B1BBB2>ҵ<EFBFBD>Ԫ<EFBFBD>صĵ<D8B5><C4B5><EFBFBD><EFBFBD><EFBFBD>
cout<<"find() 3 "<<*s.find (3)<<endl;
cout<<"s.size() "<<s.size ()<<endl;
return 0;
}

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C++专题课程/STL基础知识/set操作基础/set的使用_2.cpp Normal file
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#include<bits/stdc++.h>
using namespace std;
int main() {
set<int> s;
s.insert(1);
s.insert(2);
s.insert(3);
s.insert(1);
cout<<"set <20><> size ֵΪ <20><>"<<s.size()<<endl;
cout<<"set <20><> maxsize<7A><65>ֵΪ <20><>"<<s.max_size()<<endl;
cout<<"set <20>еĵ<D0B5>һ<EFBFBD><D2BB>Ԫ<EFBFBD><D4AA><EFBFBD><EFBFBD> <20><>"<<*s.begin()<<endl;
cout<<"set <20>е<EFBFBD><D0B5><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><D2BB>Ԫ<EFBFBD><D4AA><EFBFBD><EFBFBD>:"<<*s.end()<<endl;
s.clear();
if(s.empty()) {
cout<<"set Ϊ<><CEAA> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>"<<endl;
}
cout<<"set <20><> size ֵΪ <20><>"<<s.size()<<endl;
cout<<"set <20><> maxsize<7A><65>ֵΪ <20><>"<<s.max_size()<<endl;
return 0;
}

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C++专题课程/STL基础知识/set操作基础/set的使用_3.cpp Normal file
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#include<bits/stdc++.h>
using namespace std;
int main() {
set<int> s;
s.insert(1);
s.insert(2);
s.insert(3);
s.insert(1);
cout<<"set <20><> 1 <20><><EFBFBD>ֵĴ<D6B5><C4B4><EFBFBD><EFBFBD><EFBFBD> <20><>"<<s.count(1)<<endl;
cout<<"set <20><> 4 <20><><EFBFBD>ֵĴ<D6B5><C4B4><EFBFBD><EFBFBD><EFBFBD> <20><>"<<s.count(4)<<endl;
return 0;
}

18
C++专题课程/STL基础知识/set操作基础/set的使用_4.cpp Normal file
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#include<bits/stdc++.h>
using namespace std;
int main() {
set<int> s;
set<int>::iterator iter;
for(int i = 1 ; i <= 5; ++i) {
s.insert(i);
}
for(iter = s.begin() ; iter != s.end() ; ++iter) {
cout<<*iter<<" ";
}
cout<<endl;
pair<set<int>::const_iterator,set<int>::const_iterator> pr;
pr = s.equal_range(3);
cout<<"<EFBFBD><EFBFBD>һ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڵ<EFBFBD><EFBFBD><EFBFBD> 3 <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><>"<<*pr.first<<endl;
cout<<"<EFBFBD><EFBFBD>һ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> 3<><33><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><> "<<*pr.second<<endl;
return 0;
}

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C++专题课程/STL基础知识/set操作基础/set的使用_5.cpp Normal file
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#include<bits/stdc++.h>
using namespace std;
int main() {
set<int> s;
set<int>::const_iterator iter;
set<int>::iterator first;
set<int>::iterator second;
for(int i = 1 ; i <= 10 ; ++i) {
s.insert(i);
}
//<2F><>һ<EFBFBD><D2BB>ɾ<EFBFBD><C9BE>
s.erase(s.begin());
//<2F>ڶ<EFBFBD><DAB6><EFBFBD>ɾ<EFBFBD><C9BE>
first = s.begin();
second = s.begin();
second++;
second++;
s.erase(first,second);
//<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ɾ<EFBFBD><C9BE>
s.erase(8);
cout<<"ɾ<EFBFBD><EFBFBD><EFBFBD><EFBFBD> set <20><>Ԫ<EFBFBD><D4AA><EFBFBD><EFBFBD> <20><>";
for(iter = s.begin() ; iter != s.end() ; ++iter) {
cout<<*iter<<" ";
}
cout<<endl;
return 0;
}

13
C++专题课程/STL基础知识/set操作基础/set的使用_6.cpp Normal file
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#include<bits/stdc++.h>
using namespace std;
int main()
{
int a[] = {1,2,3};
set<int> s(a,a+3);
set<int>::iterator iter;
if((iter = s.find(2)) != s.end())
{
cout<<*iter<<endl;//<2F><><EFBFBD><EFBFBD>Ϊ2
}
return 0;
}

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C++专题课程/STL基础知识/set操作基础/set的使用_7.cpp Normal file
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#include<bits/stdc++.h>
using namespace std;
int main() {
int a[] = {1,2,3};
set<int> s;
set<int>::iterator iter;
s.insert(a,a+3);
for(iter = s.begin() ; iter != s.end() ; ++iter) {
cout<<*iter<<" ";
}
cout<<endl;
pair<set<int>::iterator,bool> pr;
pr = s.insert(5);
if(pr.second) {
cout<<*pr.first<<endl;
}
return 0;
}