YB4.1 Введение в итераторы

RobertDeMilo

Nov 10th, 2023

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#include <iostream>
#include <algorithm>
#include <vector>
using namespace std;
struct Lang
{
string name;
int age;
};
int main()
{
vector<string> langs = { "Python", "C++", "C", "Java", "C#" };
auto result = find_if(begin(langs), end(langs), [](const string& lang)
{return lang[0] == 'C'; });
/*cout << *result << endl;*/
string& ref = *result;
ref = "D++";
cout << *result << endl;
#######################################################################################################
vector<Lang> langs = { {"Python", 26}, {"C++", 34}, {"C", 45}, {"Java", 22}, {"C#", 17} };
auto result = find_if(begin(langs), end(langs), [](const Lang& lang)
{return lang.name[0] == 'C'; });
if (result == end(langs))
{
cout << "Not found" << endl;
}
else
{
cout << (*result).age << endl;
cout << result->age << endl;
}
cout << begin(langs)->name << " " << begin(langs)->age << endl;
cout << langs.begin()->name << " " << langs.begin()->age << endl;
return 0;
}

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