algorithmヘッダを使ったfindの使用例

algorithm_find.cpp

#include <iostream>
#include <vector>

int main()
{
  std::vector<int> v{1, 2, 3, 4, 5, 6};

  int target = 5;
  auto it = std::find(v.begin(), v.end(), target);
  bool flag = it != v.end();

  std::cout << "target " << target << " is " << (flag ? "found" : "not found")
            << std::endl;
}