Submission #724897

#	Time	Username	Problem	Language	Result	Execution time	Memory
724897		MohamedAliSaidane	Counting Mushrooms (IOI20_mushrooms)	C++14	Compilation error	0 ms	0 KiB

mushrooms

#include<bits/stdc++.h>
#include "mushrooms.h"
#include<ext/pb_ds/assoc_container.hpp>

using namespace std;
using namespace __gnu_pbds;

typedef long long ll;
typedef tree<int, null_type, less<int>, rb_tree_tag, tree_order_statistics_node_update> indexed_set;

typedef vector<int> vi;
typedef vector<ll> vll;
typedef pair<int,int> pii;
typedef vector<pii> vpi;

#define ff first
#define ss second
#define pb push_back
#define all(x) (x).begin(),(x).end()

const ll MOD = 1e9 + 7, INF = 1e18;
ll mod(ll x, ll m = MOD) {return (x + m) % m;}

int N;
string S;
/*
int use_machine(vi v)
{
    int rep = 0;
    for(int i = 0; i < (int)(v.size()) - 1; i++)
        rep += (S[v[i]] != S[v[i + 1]]);
    return rep;
}
*/
int count_mushrooms(int n)
{
    char c = 'A', d= 'B';
    int a = 0, b = 1;
    int u = use_machine({0, 1});
    if(n == 2)
        return 2 - u;
    if(u == 1)
    {
        if(use_machine({0, 2}))
        {
            a=  2;
            swap(c, d);
        }
        else
            b = 2;
    }
    vi A = {a, b};
    vi B;
    for(int j = 0; j < 3; j++)
        if(j != a && j != b)
            B.pb(j);
    int sza = 2, szb = 1;
    int last = 2;
    for(int i = 3; max(sza, szb) * max(sza, szb) < n; i+= 2)
    {
        if(i == n -1)
        {
            last = i;
            if(use_machine({a, i}))
                B.pb(i);
            else
                A.pb(i);
        }
        else
        {
            last = i + 1;
            u = use_machine({a, i, b, i + 1});
            if(u == 1)
            {
                A.pb(i); B.pb(i + 1);
            }
            else if(u == 0)
            {
                A.pb(i); A.pb(i + 1);
            }
            else if(u == 2)
            {
                A.pb(i + 1);
                B.pb(i);
            }
            else
            {
                B.pb(i); B.pb(i + 1);
            }
        }
        sza = (int)(A.size());
        szb = (int)(B.size());
    }
    if(sza < szb)
    {
        swap(c, d);
        swap(A, B);
        swap(sza, szb);
    }
    int cnt = szb;
    for(int j = last + 1; j < n; j += sza)
    {
        vi v;
        for(int k = 0; k < min(n - j, sza); k++)
        {
            v.pb(A[k]);
            v.pb(j + k);
        }
        int r = use_machine(v);
        if(1 - (v & 1))
        {
            A.pb(j + min(n - j, sza) - 1);
            sza++;
        }
        cnt += (r + 1)/2;
    }
    if(c == 'B')
        return cnt;
    else
        return n - cnt;
}
/*
int32_t main()
{
    ios::sync_with_stdio(false);
    cin.tie(0); cout.tie(0);
    cin >> N;
    cin >> S;
    cout << count_mushrooms(N);
}
*/

Compilation message (stderr)

mushrooms.cpp: In function 'int count_mushrooms(int)':
mushrooms.cpp:110:19: error: no match for 'operator&' (operand types are 'vi' {aka 'std::vector<int>'} and 'int')
  110 |         if(1 - (v & 1))
      |                 ~ ^ ~
      |                 |   |
      |                 |   int
      |                 vi {aka std::vector<int>}
In file included from /usr/include/c++/10/ios:42,
                 from /usr/include/c++/10/istream:38,
                 from /usr/include/c++/10/sstream:38,
                 from /usr/include/c++/10/complex:45,
                 from /usr/include/c++/10/ccomplex:39,
                 from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:54,
                 from mushrooms.cpp:1:
/usr/include/c++/10/bits/ios_base.h:83:3: note: candidate: 'constexpr std::_Ios_Fmtflags std::operator&(std::_Ios_Fmtflags, std::_Ios_Fmtflags)'
   83 |   operator&(_Ios_Fmtflags __a, _Ios_Fmtflags __b)
      |   ^~~~~~~~
/usr/include/c++/10/bits/ios_base.h:83:27: note:   no known conversion for argument 1 from 'vi' {aka 'std::vector<int>'} to 'std::_Ios_Fmtflags'
   83 |   operator&(_Ios_Fmtflags __a, _Ios_Fmtflags __b)
      |             ~~~~~~~~~~~~~~^~~
/usr/include/c++/10/bits/ios_base.h:125:3: note: candidate: 'constexpr std::_Ios_Openmode std::operator&(std::_Ios_Openmode, std::_Ios_Openmode)'
  125 |   operator&(_Ios_Openmode __a, _Ios_Openmode __b)
      |   ^~~~~~~~
/usr/include/c++/10/bits/ios_base.h:125:27: note:   no known conversion for argument 1 from 'vi' {aka 'std::vector<int>'} to 'std::_Ios_Openmode'
  125 |   operator&(_Ios_Openmode __a, _Ios_Openmode __b)
      |             ~~~~~~~~~~~~~~^~~
/usr/include/c++/10/bits/ios_base.h:165:3: note: candidate: 'constexpr std::_Ios_Iostate std::operator&(std::_Ios_Iostate, std::_Ios_Iostate)'
  165 |   operator&(_Ios_Iostate __a, _Ios_Iostate __b)
      |   ^~~~~~~~
/usr/include/c++/10/bits/ios_base.h:165:26: note:   no known conversion for argument 1 from 'vi' {aka 'std::vector<int>'} to 'std::_Ios_Iostate'
  165 |   operator&(_Ios_Iostate __a, _Ios_Iostate __b)
      |             ~~~~~~~~~~~~~^~~
In file included from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:66,
                 from mushrooms.cpp:1:
/usr/include/c++/10/bitset:1435:5: note: candidate: 'template<long unsigned int _Nb> std::bitset<_Nb> std::operator&(const std::bitset<_Nb>&, const std::bitset<_Nb>&)'
 1435 |     operator&(const bitset<_Nb>& __x, const bitset<_Nb>& __y) _GLIBCXX_NOEXCEPT
      |     ^~~~~~~~
/usr/include/c++/10/bitset:1435:5: note:   template argument deduction/substitution failed:
mushrooms.cpp:110:21: note:   'vi' {aka 'std::vector<int>'} is not derived from 'const std::bitset<_Nb>'
  110 |         if(1 - (v & 1))
      |                     ^
In file included from /usr/include/c++/10/bits/shared_ptr_atomic.h:33,
                 from /usr/include/c++/10/memory:85,
                 from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:82,
                 from mushrooms.cpp:1:
/usr/include/c++/10/bits/atomic_base.h:100:3: note: candidate: 'constexpr std::memory_order std::operator&(std::memory_order, std::__memory_order_modifier)'
  100 |   operator&(memory_order __m, __memory_order_modifier __mod)
      |   ^~~~~~~~
/usr/include/c++/10/bits/atomic_base.h:100:26: note:   no known conversion for argument 1 from 'vi' {aka 'std::vector<int>'} to 'std::memory_order'
  100 |   operator&(memory_order __m, __memory_order_modifier __mod)
      |             ~~~~~~~~~~~~~^~~
In file included from /usr/include/c++/10/valarray:603,
                 from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:95,
                 from mushrooms.cpp:1:
/usr/include/c++/10/bits/valarray_after.h:411:5: note: candidate: 'template<class _Dom1, class _Dom2> std::_Expr<std::__detail::_BinClos<std::__bitwise_and, std::_Expr, std::_Expr, _Dom1, _Dom2>, typename std::__fun<std::__bitwise_and, typename _Dom1::value_type>::result_type> std::operator&(const std::_Expr<_Dom1, typename _Dom1::value_type>&, const std::_Expr<_Dom2, typename _Dom2::value_type>&)'
  411 |     _DEFINE_EXPR_BINARY_OPERATOR(&, __bitwise_and)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/include/c++/10/bits/valarray_after.h:411:5: note:   template argument deduction/substitution failed:
mushrooms.cpp:110:21: note:   'vi' {aka 'std::vector<int>'} is not derived from 'const std::_Expr<_Dom1, typename _Dom1::value_type>'
  110 |         if(1 - (v & 1))
      |                     ^
In file included from /usr/include/c++/10/valarray:603,
                 from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:95,
                 from mushrooms.cpp:1:
/usr/include/c++/10/bits/valarray_after.h:411:5: note: candidate: 'template<class _Dom> std::_Expr<std::__detail::_BinClos<std::__bitwise_and, std::_Expr, std::_Constant, _Dom, typename _Dom::value_type>, typename std::__fun<std::__bitwise_and, typename _Dom1::value_type>::result_type> std::operator&(const std::_Expr<_Dom1, typename _Dom1::value_type>&, const typename _Dom::value_type&)'
  411 |     _DEFINE_EXPR_BINARY_OPERATOR(&, __bitwise_and)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/include/c++/10/bits/valarray_after.h:411:5: note:   template argument deduction/substitution failed:
mushrooms.cpp:110:21: note:   'vi' {aka 'std::vector<int>'} is not derived from 'const std::_Expr<_Dom1, typename _Dom1::value_type>'
  110 |         if(1 - (v & 1))
      |                     ^
In file included from /usr/include/c++/10/valarray:603,
                 from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:95,
                 from mushrooms.cpp:1:
/usr/include/c++/10/bits/valarray_after.h:411:5: note: candidate: 'template<class _Dom> std::_Expr<std::__detail::_BinClos<std::__bitwise_and, std::_Constant, std::_Expr, typename _Dom::value_type, _Dom>, typename std::__fun<std::__bitwise_and, typename _Dom1::value_type>::result_type> std::operator&(const typename _Dom::value_type&, const std::_Expr<_Dom1, typename _Dom1::value_type>&)'
  411 |     _DEFINE_EXPR_BINARY_OPERATOR(&, __bitwise_and)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/include/c++/10/bits/valarray_after.h:411:5: note:   template argument deduction/substitution failed:
mushrooms.cpp:110:21: note:   mismatched types 'const std::_Expr<_Dom1, typename _Dom1::value_type>' and 'int'
  110 |         if(1 - (v & 1))
      |                     ^
In file included from /usr/include/c++/10/valarray:603,
                 from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:95,
                 from mushrooms.cpp:1:
/usr/include/c++/10/bits/valarray_after.h:411:5: note: candidate: 'template<class _Dom> std::_Expr<std::__detail::_BinClos<std::__bitwise_and, std::_Expr, std::_ValArray, _Dom, typename _Dom::value_type>, typename std::__fun<std::__bitwise_and, typename _Dom1::value_type>::result_type> std::operator&(const std::_Expr<_Dom1, typename _Dom1::value_type>&, const std::valarray<typename _Dom::value_type>&)'
  411 |     _DEFINE_EXPR_BINARY_OPERATOR(&, __bitwise_and)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/include/c++/10/bits/valarray_after.h:411:5: note:   template argument deduction/substitution failed:
mushrooms.cpp:110:21: note:   'vi' {aka 'std::vector<int>'} is not derived from 'const std::_Expr<_Dom1, typename _Dom1::value_type>'
  110 |         if(1 - (v & 1))
      |                     ^
In file included from /usr/include/c++/10/valarray:603,
                 from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:95,
                 from mushrooms.cpp:1:
/usr/include/c++/10/bits/valarray_after.h:411:5: note: candidate: 'template<class _Dom> std::_Expr<std::__detail::_BinClos<std::__bitwise_and, std::_ValArray, std::_Expr, typename _Dom::value_type, _Dom>, typename std::__fun<std::__bitwise_and, typename _Dom1::value_type>::result_type> std::operator&(const std::valarray<typename _Dom::value_type>&, const std::_Expr<_Dom1, typename _Dom1::value_type>&)'
  411 |     _DEFINE_EXPR_BINARY_OPERATOR(&, __bitwise_and)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/include/c++/10/bits/valarray_after.h:411:5: note:   template argument deduction/substitution failed:
mushrooms.cpp:110:21: note:   mismatched types 'const std::_Expr<_Dom1, typename _Dom1::value_type>' and 'int'
  110 |         if(1 - (v & 1))
      |                     ^
In file included from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:95,
                 from mushrooms.cpp:1:
/usr/include/c++/10/valarray:1191:1: note: candidate: 'template<class _Tp> std::_Expr<std::__detail::_BinClos<std::__bitwise_and, std::_ValArray, std::_ValArray, _Tp, _Tp>, typename std::__fun<std::__bitwise_and, _Tp>::result_type> std::operator&(const std::valarray<_Tp>&, const std::valarray<_Tp>&)'
 1191 | _DEFINE_BINARY_OPERATOR(&, __bitwise_and)
      | ^~~~~~~~~~~~~~~~~~~~~~~
/usr/include/c++/10/valarray:1191:1: note:   template argument deduction/substitution failed:
mushrooms.cpp:110:21: note:   'vi' {aka 'std::vector<int>'} is not derived from 'const std::valarray<_Tp>'
  110 |         if(1 - (v & 1))
      |                     ^
In file included from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:95,
                 from mushrooms.cpp:1:
/usr/include/c++/10/valarray:1191:1: note: candidate: 'template<class _Tp> std::_Expr<std::__detail::_BinClos<std::__bitwise_and, std::_ValArray, std::_Constant, _Tp, _Tp>, typename std::__fun<std::__bitwise_and, _Tp>::result_type> std::operator&(const std::valarray<_Tp>&, const typename std::valarray<_Tp>::value_type&)'
 1191 | _DEFINE_BINARY_OPERATOR(&, __bitwise_and)
      | ^~~~~~~~~~~~~~~~~~~~~~~
/usr/include/c++/10/valarray:1191:1: note:   template argument deduction/substitution failed:
mushrooms.cpp:110:21: note:   'vi' {aka 'std::vector<int>'} is not derived from 'const std::valarray<_Tp>'
  110 |         if(1 - (v & 1))
      |                     ^
In file included from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:95,
                 from mushrooms.cpp:1:
/usr/include/c++/10/valarray:1191:1: note: candidate: 'template<class _Tp> std::_Expr<std::__detail::_BinClos<std::__bitwise_and, std::_Constant, std::_ValArray, _Tp, _Tp>, typename std::__fun<std::__bitwise_and, _Tp>::result_type> std::operator&(const typename std::valarray<_Tp>::value_type&, const std::valarray<_Tp>&)'
 1191 | _DEFINE_BINARY_OPERATOR(&, __bitwise_and)
      | ^~~~~~~~~~~~~~~~~~~~~~~
/usr/include/c++/10/valarray:1191:1: note:   template argument deduction/substitution failed:
mushrooms.cpp:110:21: note:   mismatched types 'const std::valarray<_Tp>' and 'int'
  110 |         if(1 - (v & 1))
      |                     ^
In file included from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:105,
                 from mushrooms.cpp:1:
/usr/include/c++/10/future:143:20: note: candidate: 'constexpr std::launch std::operator&(std::launch, std::launch)'
  143 |   constexpr launch operator&(launch __x, launch __y)
      |                    ^~~~~~~~
/usr/include/c++/10/future:143:37: note:   no known conversion for argument 1 from 'vi' {aka 'std::vector<int>'} to 'std::launch'
  143 |   constexpr launch operator&(launch __x, launch __y)
      |                              ~~~~~~~^~~