PermCheck.cpp

// you can use includes, for example:
#include <algorithm>

// you can write to stdout for debugging purposes, e.g.
// cout << "this is a debug message" << endl;

int solution(vector<int> &A) {
    // write your code in C++14 (g++ 6.2.0)
    vector<int>::iterator it;
    //int missing_element = A.size();
    int x = *std::min_element(A.begin(), A.end());
    sort(A.begin(), A.end());
    for (vector<int>::const_iterator i = A.begin(); i != A.end(); ++i)
    {
        //cout << x << " " << *i << endl;
        if(*i != x)
        {
            return 0;
        }
        x++;
    }
    return 1;
    //cout << start << endl;
    /*for(unsigned int i = start;i < (A.size() + 1);i++)
    {
        it = find (A.begin(), A.end(), i);
        if (it == A.end())
           missing_element = i;
    }
    if(missing_element == A.size())
    {
        return 1;
    }
    else
    {
        return 0;
    }*/

}