Submission #334695

#	Time	Username	Problem	Language	Result	Execution time	Memory
334695		blue	Horses (IOI15_horses)	C++17	Compilation error	0 ms	0 KiB

horses

#include "horses.h"
#include <algorithm>
using namespace std;

int mod = 1e9 + 7;

int N;
int* X;
int* Y;

int answer()
{
    long long product_X[N];
    product_X[0] = X[0];
    for(int i = 1; i < N; i++) product_X[i] = (product_X[i-1] * X[i]) % mod;

    int y = 0;
    int res = 0;
    for(int i = N-1; i >= 0; i--)
    {
        y = max(y, Y[i]);
        res = max(res, (product_X[i] * y) % mod);
    }
    return res;
}

int init(int n, int x[], int y[])
{
    N = n;
    X = x;
    Y = y;

    return answer();
}

int updateX(int pos, int val)
{
    X[pos] = val;
    return answer();
}

int updateY(int pos, int val)
{
    Y[pos] = val;
    return answer();
}

Compilation message (stderr)

horses.cpp: In function 'int answer()':
horses.cpp:22:48: error: no matching function for call to 'max(int&, long long int)'
   22 |         res = max(res, (product_X[i] * y) % mod);
      |                                                ^
In file included from /usr/include/c++/9/algorithm:61,
                 from horses.cpp:2:
/usr/include/c++/9/bits/stl_algobase.h:222:5: note: candidate: 'template<class _Tp> constexpr const _Tp& std::max(const _Tp&, const _Tp&)'
  222 |     max(const _Tp& __a, const _Tp& __b)
      |     ^~~
/usr/include/c++/9/bits/stl_algobase.h:222:5: note:   template argument deduction/substitution failed:
horses.cpp:22:48: note:   deduced conflicting types for parameter 'const _Tp' ('int' and 'long long int')
   22 |         res = max(res, (product_X[i] * y) % mod);
      |                                                ^
In file included from /usr/include/c++/9/algorithm:61,
                 from horses.cpp:2:
/usr/include/c++/9/bits/stl_algobase.h:268:5: note: candidate: 'template<class _Tp, class _Compare> constexpr const _Tp& std::max(const _Tp&, const _Tp&, _Compare)'
  268 |     max(const _Tp& __a, const _Tp& __b, _Compare __comp)
      |     ^~~
/usr/include/c++/9/bits/stl_algobase.h:268:5: note:   template argument deduction/substitution failed:
horses.cpp:22:48: note:   deduced conflicting types for parameter 'const _Tp' ('int' and 'long long int')
   22 |         res = max(res, (product_X[i] * y) % mod);
      |                                                ^
In file included from /usr/include/c++/9/algorithm:62,
                 from horses.cpp:2:
/usr/include/c++/9/bits/stl_algo.h:3456:5: note: candidate: 'template<class _Tp> constexpr _Tp std::max(std::initializer_list<_Tp>)'
 3456 |     max(initializer_list<_Tp> __l)
      |     ^~~
/usr/include/c++/9/bits/stl_algo.h:3456:5: note:   template argument deduction/substitution failed:
horses.cpp:22:48: note:   mismatched types 'std::initializer_list<_Tp>' and 'int'
   22 |         res = max(res, (product_X[i] * y) % mod);
      |                                                ^
In file included from /usr/include/c++/9/algorithm:62,
                 from horses.cpp:2:
/usr/include/c++/9/bits/stl_algo.h:3462:5: note: candidate: 'template<class _Tp, class _Compare> constexpr _Tp std::max(std::initializer_list<_Tp>, _Compare)'
 3462 |     max(initializer_list<_Tp> __l, _Compare __comp)
      |     ^~~
/usr/include/c++/9/bits/stl_algo.h:3462:5: note:   template argument deduction/substitution failed:
horses.cpp:22:48: note:   mismatched types 'std::initializer_list<_Tp>' and 'int'
   22 |         res = max(res, (product_X[i] * y) % mod);
      |                                                ^