Language: C++

#include <iostream>
#include <vector>
#include <algorithm>
#include <numeric>
#include <cmath>
using namespace std;

double dxy(vector<int> &x, vector<int> &y, int p){
    long long sum=0;
    for(int i=0; i<x.size(); ++i){
        sum += pow(abs(x[i]-y[i]),p);
    }
    return (pow(sum,1.0/p));
}
double dmax(vector<int> &x, vector<int> &y){
    long d_max=0;
    for(int i=0; i<x.size(); ++i){
        d_max = max(d_max,abs(x[i]-y[i]));
    }
    return d_max;
}


int main()
{

    int n;
    cin >> n;
    vector<int> x(n,0);
    vector<int> y(n,0);

    for(auto&& a: x){
        cin >> a;
    }

    for(auto&& a: y){
        cin >> a;
    }
    cout << fixed;
    cout << dxy( x, y, 1) << endl;
    cout << dxy( x, y, 2) << endl;
    cout << dxy( x, y, 3) << endl;
    cout << dmax( x, y) << endl;
    return 0;
}


Compiler output:
a.cc: In function 'double dmax(std::vector<int>&, std::vector<int>&)':
a.cc:18:20: error: no matching function for call to 'max(long int&, int)'
   18 |         d_max = max(d_max,abs(x[i]-y[i]));
      |                 ~~~^~~~~~~~~~~~~~~~~~~~~~
In file included from /usr/include/c++/14/string:51,
                 from /usr/include/c++/14/bits/locale_classes.h:40,
                 from /usr/include/c++/14/bits/ios_base.h:41,
                 from /usr/include/c++/14/ios:44,
                 from /usr/include/c++/14/ostream:40,
                 from /usr/include/c++/14/iostream:41,
                 from a.cc:1:
/usr/include/c++/14/bits/stl_algobase.h:257:5: note: candidate: 'template<class _Tp> constexpr const _Tp& std::max(const _Tp&, const _Tp&)'
  257 |     max(const _Tp& __a, const _Tp& __b)
      |     ^~~
/usr/include/c++/14/bits/stl_algobase.h:257:5: note:   template argument deduction/substitution failed:
a.cc:18:20: note:   deduced conflicting types for parameter 'const _Tp' ('long int' and 'int')
   18 |         d_max = max(d_max,abs(x[i]-y[i]));
      |                 ~~~^~~~~~~~~~~~~~~~~~~~~~
/usr/include/c++/14/bits/stl_algobase.h:303:5: note: candidate: 'template<class _Tp, class _Compare> constexpr const _Tp& std::max(const _Tp&, const _Tp&, _Compare)'
  303 |     max(const _Tp& __a, const _Tp& __b, _Compare __comp)
      |     ^~~
/usr/include/c++/14/bits/stl_algobase.h:303:5: note:   candidate expects 3 arguments, 2 provided
In file included from /usr/include/c++/14/algorithm:61,
                 from a.cc:3:
/usr/include/c++/14/bits/stl_algo.h:5706:5: note: candidate: 'template<class _Tp> constexpr _Tp std::max(initializer_list<_Tp>)'
 5706 |     max(initializer_list<_Tp> __l)
      |     ^~~
/usr/include/c++/14/bits/stl_algo.h:5706:5: note:   candidate expects 1 argument, 2 provided
/usr/include/c++/14/bits/stl_algo.h:5716:5: note: candidate: 'template<class _Tp, class _Compare> constexpr _Tp std::max(initializer_list<_Tp>, _Compare)'
 5716 |     max(initializer_list<_Tp> __l, _Compare __comp)
      |     ^~~
/usr/include/c++/14/bits/stl_algo.h:5716:5: note:   template argument deduction/substitution failed:
a.cc:18:20: note:   mismatched types 'std::initializer_list<_Tp>' and 'long int'
   18 |         d_max = max(d_max,abs(x[i]-y[i]));
      |                 ~~~^~~~~~~~~~~~~~~~~~~~~~