Language: C++

#include <iostream>
#include <vector>
#include <algorithm>
#include <string>
using namespace std;


int main(){
    int n,m,x,y;
    cin>>n>>m>>x>>y;
    vector<int> xn(n);
    for(int i=0;i<n;++i)cin>>xn[i];
    vector<int> ym(m);
    for(int i=0;i<m;++i)cin>>ym[i];

    if(max(x, max(xn.begin(),xn.end())) < min(y,min(ym.begin(),ym.end())){
        cout<<"No War"<<endl;
    }else{
        cout<<"War"<<endl;
    }
    
    
}

Compiler output:
a.cc: In function 'int main()':
a.cc:16:11: error: no matching function for call to 'max(int&, const __gnu_cxx::__normal_iterator<int*, std::vector<int> >&)'
   16 |     if(max(x, max(xn.begin(),xn.end())) < min(y,min(ym.begin(),ym.end())){
      |        ~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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:16:11: note:   deduced conflicting types for parameter 'const _Tp' ('int' and '__gnu_cxx::__normal_iterator<int*, std::vector<int> >')
   16 |     if(max(x, max(xn.begin(),xn.end())) < min(y,min(ym.begin(),ym.end())){
      |        ~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/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:16:11: note:   mismatched types 'std::initializer_list<_Tp>' and 'int'
   16 |     if(max(x, max(xn.begin(),xn.end())) < min(y,min(ym.begin(),ym.end())){
      |        ~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
a.cc:16:46: error: no matching function for call to 'min(int&, const __gnu_cxx::__normal_iterator<int*, std::vector<int> >&)'
   16 |     if(max(x, max(xn.begin(),xn.end())) < min(y,min(ym.begin(),ym.end())){
      |                                           ~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/include/c++/14/bits/stl_algobase.h:233:5: note: candidate: 'template<class _Tp> constexpr const _Tp& std::min(const _Tp&, const _Tp&)'
  233 |     min(const _Tp& __a, const _Tp& __b)
      |     ^~~
/usr/include/c++/14/bits/stl_algobase.h:233:5: note:   template argument deduction/substitution failed:
a.cc:16:46: note:   deduced conflicting types for parameter 'const _Tp' ('int' and '__gnu_cxx::__normal_iterator<int*, std::vector<int> >')
   16 |     if(max(x, max(xn.begin(),xn.end())) < min(y,min(ym.begin(),ym.end())){
      |                                           ~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/include/c++/14/bits/stl_algobase.h:281:5: note: candidate: 'template<class _Tp, class _Compare> constexpr const _Tp& std::min(const _Tp&, const _Tp&, _Compare)'
  281 |     min(const _Tp& __a, const _Tp& __b, _Compare __comp)
      |     ^~~
/usr/include/c++/14/bits/stl_algobase.h:281:5: note:   candidate expects 3 arguments, 2 provided
/usr/include/c++/14/bits/stl_algo.h:5686:5: note: candidate: 'template<class _Tp> constexpr _Tp std::min(initializer_list<_Tp>)'
 5686 |     min(initializer_list<_Tp> __l)
      |     ^~~
/usr/include/c++/14/bits/stl_algo.h:5686:5: note:   candidate expects 1 argument, 2 provided
/usr/include/c++/14/bits/stl_algo.h:5696:5: note: candidate: 'template<class _Tp, class _Compare> constexpr _Tp std::min(initializer_list<_Tp>, _Compare)'
 5696 |     min(initializer_list<_Tp> __l, _Compare __comp)
      |     ^~~
/usr/include/c++/14/bits/stl_algo.h:5696:5: note:   template argument deduction/substitution failed:
a.cc:16:46: note:   mismatched types 'std::initializer_list<_Tp>' and 'int'
   16 |     if(max(x, max(xn.begin(),xn.end())) < min(y,min(ym.begin(),ym.end())){
      |                                           ~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~
a.cc:16:74: error: expected ')' before '{' token
   16 |     if(max(x, max(xn.begin(),xn.end())) < min(y,min(ym.begin(),ym.end())){
      |       ~                                                                  ^
      |                                                                          )
a.cc:23:1: error: expected primary-expression before '}' token
   23 | }
      | ^