Language: C++

#include <bits/stdc++.h>
 
#define ll long long
 
using namespace std;
 
inline int read() {
  int s = 0, t = 1; char ch = getchar();
  while (ch < '0' || ch > '9') {if (ch == '-') t = -1; ch = getchar();}
  while (ch >= '0' && ch <= '9') {s = s * 10 + ch - '0'; ch = getchar();}
  return s * t;
}
 
ll maxx, minn = 0x7fffffff;
 
ll main() {
	int n, m, X, Y;
	cin>>n>>m>>X>>Y;
	for (int i = 1; i <= n; i++) {
	  maxx = max(maxx, read());
	}
	for (int i = 1; i <= m; i++) {
	  minn = min(minn, read());
	}
	for (ll i = maxx + 1; i <= minn; i++) {
	  if (i > X && i <= Y) {
		  printf("No War\n");
		  return 0;
		}
	}
	printf("War\n");
  return 0;
}

Compiler output:
cc1plus: error: '::main' must return 'int'
a.cc: In function 'int main()':
a.cc:20:21: error: no matching function for call to 'max(long long int&, int)'
   20 |           maxx = max(maxx, read());
      |                  ~~~^~~~~~~~~~~~~~
In file included from /usr/include/c++/14/algorithm:60,
                 from /usr/include/x86_64-linux-gnu/c++/14/bits/stdc++.h:51,
                 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:20:21: note:   deduced conflicting types for parameter 'const _Tp' ('long long int' and 'int')
   20 |           maxx = max(maxx, read());
      |                  ~~~^~~~~~~~~~~~~~
/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:
/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:20:21: note:   mismatched types 'std::initializer_list<_Tp>' and 'long long int'
   20 |           maxx = max(maxx, read());
      |                  ~~~^~~~~~~~~~~~~~
a.cc:23:21: error: no matching function for call to 'min(long long int&, int)'
   23 |           minn = min(minn, read());
      |                  ~~~^~~~~~~~~~~~~~
/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:23:21: note:   deduced conflicting types for parameter 'const _Tp' ('long long int' and 'int')
   23 |           minn = min(minn, read());
      |                  ~~~^~~~~~~~~~~~~~
/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:23:21: note:   mismatched types 'std::initializer_list<_Tp>' and 'long long int'
   23 |           minn = min(minn, read());
      |                  ~~~^~~~~~~~~~~~~~