Language: C++

/*
 * author :Sadik Hassan
 *
*/
#include "bits/stdc++.h"
using namespace std;
#define ll            long long
#define nl            "\n"
#define pb            push_back
#define fi            first
#define se            second
#define PI            (acos(-1.0))
#define _SAD()        ios::sync_with_stdio(0),cin.tie(0), cout.tie(0);
#define repp(i,a,n)   for(int i=a;i<n;i++)
#define rep(i,n)      for(int i=0;i<n;i++)
#define SZ(s)         s.size()
#define SRT(x,y)      sort(x,x+y)
#define REV(a,b)      reverse(a,a+b)
#define VSRT(x)       sort(x.begin(),x.end())
#define VREV(x)       reverse(x.begin(),x.end())
#define w(t)          int t;cin>>t;while(t--)
#define TSFL(s)       transform(s.begin(),s.end(),s.begin(),::toupper);
#define TSFH(s)       transform(s.begin(),s.end(),s.begin(),::tolower);
typedef vector<int> vi;
typedef vector<ll> vii;
typedef set<int> si;
typedef set<ll> sii;

const int N = 1e6;
const ll xy = 1e11+10000000;
const int INF = (int)1e9+5;

int main()
{
    _SAD()
    ll a,b,n;
    cin>>a>>b>>n;
    ll ans=1e-5,cnt=0;
    for(ll i=1;i<=min(n,N);i++)
    {
        cnt=((a*i)/b)-(a*(i/b));
        ans=max(cnt,ans);
    }
    cout<<ans<<nl;
    return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:39:22: error: no matching function for call to 'min(long long int&, const int&)'
   39 |     for(ll i=1;i<=min(n,N);i++)
      |                   ~~~^~~~~
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:5:
/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:39:22: note:   deduced conflicting types for parameter 'const _Tp' ('long long int' and 'int')
   39 |     for(ll i=1;i<=min(n,N);i++)
      |                   ~~~^~~~~
/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
In file included from /usr/include/c++/14/algorithm:61:
/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:39:22: note:   mismatched types 'std::initializer_list<_Tp>' and 'long long int'
   39 |     for(ll i=1;i<=min(n,N);i++)
      |                   ~~~^~~~~