cpp iterator of element
vector<int> arr = { 6, 3, 5, 2, 8 };
vector<int>::iterator itr = std::find(arr.begin(), arr.end(), elem);
if (itr != end(arr)) {
cout << "Element " << elem << " is present at index " << distance(arr, itr) << " in the given array";
}
else {
cout << "Element is not present in the given array";
}Iterator in c++
//Iterator Pointer like Structore in c++ of STL
#include <bits/stdc++.h>
using namespace std;
int main(){
vector<int> v = {1,2,3,4,5};
for(int i = 0; i<v.size(); i++){
cout<<v[i]<<" ";
}
cout<<endl;
vector<int> :: iterator it;
// it = v.begin();
// cout<<(*it+1)<<endl;
for(it = v.begin(); it !=v.end(); ++it){
cout<<(*it)<<endl;
}
cout<<endl;
vector<pair<int, int>> v_p = {{1,2},{3,4},{5,6}};
vector<pair<int ,int>> :: iterator iter;
for(iter = v_p.begin(); iter !=v_p.end(); ++iter){
cout<<(*iter).first<<" "<<(*iter).second<<endl;
}
cout<<endl;
for(iter = v_p.begin(); iter !=v_p.end(); ++iter){
cout<<(iter->first)<<" "<<(iter->second)<<endl;
}
return 0;
}Copyright © 2021 Codeinu
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