Language: C++

#include<bits/stdc++.h>
using namespace std;
int main(){
    long long int t[2],a[2],b[2];
    for(int i=0;i<2;i++)cin >> t[i];
    for(int i=0;i<2;i++)cin >> a[i];
    for(int i=0;i<2;i++)cin >> b[i];
    long long int move=t[0]*(a[0]-b[0])+t[1]*(a[1]-b[1]);
    long long int MAX=max(max(0,t[0]*(a[0]-b[0])),t[0]*(a[0]-b[0])+t[1]*(a[1]-b[1]));
    long long int MIN=min(min(0,t[0]*(a[0]-b[0])),t[0]*(a[0]-b[0])+t[1]*(a[1]-b[1]));
    if(move==0)cout << "infinity";
    else{
        if(MIN==0 || MAX==0)cout << 0;
        else if(move>0)cout << 2*((-MIN)/move+1) - 1;
        else cout << 2*((-MAX)/move+1) - 1;
    }
}

Compiler output:
a.cc: In function 'int main()':
a.cc:9:30: error: no matching function for call to 'max(int, long long int)'
    9 |     long long int MAX=max(max(0,t[0]*(a[0]-b[0])),t[0]*(a[0]-b[0])+t[1]*(a[1]-b[1]));
      |                           ~~~^~~~~~~~~~~~~~~~~~~~
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:9:30: note:   deduced conflicting types for parameter 'const _Tp' ('int' and 'long long int')
    9 |     long long int MAX=max(max(0,t[0]*(a[0]-b[0])),t[0]*(a[0]-b[0])+t[1]*(a[1]-b[1]));
      |                           ~~~^~~~~~~~~~~~~~~~~~~~
/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:9:30: note:   mismatched types 'std::initializer_list<_Tp>' and 'int'
    9 |     long long int MAX=max(max(0,t[0]*(a[0]-b[0])),t[0]*(a[0]-b[0])+t[1]*(a[1]-b[1]));
      |                           ~~~^~~~~~~~~~~~~~~~~~~~
a.cc:10:30: error: no matching function for call to 'min(int, long long int)'
   10 |     long long int MIN=min(min(0,t[0]*(a[0]-b[0])),t[0]*(a[0]-b[0])+t[1]*(a[1]-b[1]));
      |                           ~~~^~~~~~~~~~~~~~~~~~~~
/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:10:30: note:   deduced conflicting types for parameter 'const _Tp' ('int' and 'long long int')
   10 |     long long int MIN=min(min(0,t[0]*(a[0]-b[0])),t[0]*(a[0]-b[0])+t[1]*(a[1]-b[1]));
      |                           ~~~^~~~~~~~~~~~~~~~~~~~
/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:10:30: note:   mismatched types 'std::initializer_list<_Tp>' and 'int'
   10 |     long long int MIN=min(min(0,t[0]*(a[0]-b[0])),t[0]*(a[0]-b[0])+t[1]*(a[1]-b[1]));
      |                           ~~~^~~~~~~~~~~~~~~~~~~~