Submission #642200

#	Time	Username	Problem	Language	Result	Execution time	Memory
642200		tigar	Catfish Farm (IOI22_fish)	C++17	Compilation error	0 ms	0 KiB

fish

#include <bits/stdc++.h>

using namespace std;
typedef long long ll;

ll max_weights(int N, int M, int* X, int* Y, int* W)
{
    bool subtask1=true, subtask2=true, subtask3=true;
    for(int i=0; i<M; i++)
    {
        if(X[i]%2!=0)subtask1=false;
        if(X[i]>1)subtask2=false;
        if(Y[i]!=0)subtask3=false;
    }
    if(subtask1)
    {
        ll rez=0;
        for(int i=0; i<M; i++)rez+=W[i];
        return rez;
    }
    if(subtask2)
    {
        ll s1=0, s0=0, m[N][2];
        for(int i=0; i<M; i++)
        {
            if(X[i]==0)s0+=W[i];
            else s1+=W[i];
            m[Y[i]][X[i]]=W[i];
        }
        for(int i=0; i<N; i++)
        {
            m[i][0]=m[max(i-1, 0)][0]+m[i][0];
            m[i][1]=m[max(i-1, 0)][1]+m[i][1];
        }
        if(n==2)return max(m[N-1][0], m[N-1][1]);
        int rez=0;
        for(int i=0; i<N; i++)
        {
            rez=max(rez, m[i][0]+m[N-1][1]-m[i][0]);
        }
        return rez;
    }
}

Compilation message (stderr)

fish.cpp: In function 'll max_weights(int, int, int*, int*, int*)':
fish.cpp:35:12: error: 'n' was not declared in this scope
   35 |         if(n==2)return max(m[N-1][0], m[N-1][1]);
      |            ^
fish.cpp:39:51: error: no matching function for call to 'max(int&, ll)'
   39 |             rez=max(rez, m[i][0]+m[N-1][1]-m[i][0]);
      |                                                   ^
In file included from /usr/include/c++/10/bits/specfun.h:45,
                 from /usr/include/c++/10/cmath:1927,
                 from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:41,
                 from fish.cpp:1:
/usr/include/c++/10/bits/stl_algobase.h:254:5: note: candidate: 'template<class _Tp> constexpr const _Tp& std::max(const _Tp&, const _Tp&)'
  254 |     max(const _Tp& __a, const _Tp& __b)
      |     ^~~
/usr/include/c++/10/bits/stl_algobase.h:254:5: note:   template argument deduction/substitution failed:
fish.cpp:39:51: note:   deduced conflicting types for parameter 'const _Tp' ('int' and 'll' {aka 'long long int'})
   39 |             rez=max(rez, m[i][0]+m[N-1][1]-m[i][0]);
      |                                                   ^
In file included from /usr/include/c++/10/bits/specfun.h:45,
                 from /usr/include/c++/10/cmath:1927,
                 from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:41,
                 from fish.cpp:1:
/usr/include/c++/10/bits/stl_algobase.h:300:5: note: candidate: 'template<class _Tp, class _Compare> constexpr const _Tp& std::max(const _Tp&, const _Tp&, _Compare)'
  300 |     max(const _Tp& __a, const _Tp& __b, _Compare __comp)
      |     ^~~
/usr/include/c++/10/bits/stl_algobase.h:300:5: note:   template argument deduction/substitution failed:
fish.cpp:39:51: note:   deduced conflicting types for parameter 'const _Tp' ('int' and 'll' {aka 'long long int'})
   39 |             rez=max(rez, m[i][0]+m[N-1][1]-m[i][0]);
      |                                                   ^
In file included from /usr/include/c++/10/algorithm:62,
                 from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:65,
                 from fish.cpp:1:
/usr/include/c++/10/bits/stl_algo.h:3480:5: note: candidate: 'template<class _Tp> constexpr _Tp std::max(std::initializer_list<_Tp>)'
 3480 |     max(initializer_list<_Tp> __l)
      |     ^~~
/usr/include/c++/10/bits/stl_algo.h:3480:5: note:   template argument deduction/substitution failed:
fish.cpp:39:51: note:   mismatched types 'std::initializer_list<_Tp>' and 'int'
   39 |             rez=max(rez, m[i][0]+m[N-1][1]-m[i][0]);
      |                                                   ^
In file included from /usr/include/c++/10/algorithm:62,
                 from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:65,
                 from fish.cpp:1:
/usr/include/c++/10/bits/stl_algo.h:3486:5: note: candidate: 'template<class _Tp, class _Compare> constexpr _Tp std::max(std::initializer_list<_Tp>, _Compare)'
 3486 |     max(initializer_list<_Tp> __l, _Compare __comp)
      |     ^~~
/usr/include/c++/10/bits/stl_algo.h:3486:5: note:   template argument deduction/substitution failed:
fish.cpp:39:51: note:   mismatched types 'std::initializer_list<_Tp>' and 'int'
   39 |             rez=max(rez, m[i][0]+m[N-1][1]-m[i][0]);
      |                                                   ^
fish.cpp:43:1: warning: control reaches end of non-void function [-Wreturn-type]
   43 | }
      | ^