Submission #47009

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
47009	2018-04-26T10:36:31 Z	SpaimaCarpatilor	Abduction 2 (JOI17_abduction2)	C++17	Compilation error	0 ms	0 KB

abduction2

#include<bits/stdc++.h>

using namespace std;

int H, W, Q, L[50009], C[50009], lg[50009], rmqL[16][50009], rmqC[16][50009];
unordered_map < pair < int, int >, int > mp;

void getJ1J2 (int j, int &j1, int &j2, int minVal)
{
    j1 = j, j2 = j;
    for (int k=lg[j]; k>=0; k--)
        if (j1 - (1 << k) + 1 >= 1 && rmqC[k][j1 - (1 << k) + 1] <= minVal)
            j1 -= (1 << k);
    for (int k=lg[W - j + 1]; k>=0; k--)
        if (j2 + (1 << k) - 1 <= W && rmqC[k][j2] <= minVal)
            j2 += (1 << k);
}

void getI1I2 (int i, int &i1, int &i2, int minVal)
{
    i1 = i, i2 = i;
    for (int k=lg[i]; k>=0; k--)
        if (i1 - (1 << k) + 1 >= 1 && rmqL[k][i1 - (1 << k) + 1] <= minVal)
            i1 -= (1 << k);
    for (int k=lg[H - i + 1]; k>=0; k--)
        if (i2 + (1 << k) - 1 <= H && rmqL[k][i2] <= minVal)
            i2 += (1 << k);
}

int solve (int i, int j)
{
    if (mp.count ({i, j}))
        return mp[{i, j}];
    int ans = 0;
    if (L[i] > C[j])
    {
        int j1, j2;
        getJ1J2 (j, j1, j2, L[i]);

        if (j1 == 0) ans = max (ans, j - 1);
        else
        {
            int curr = solve (i, j1) + j - j1;
            ans = max (ans, curr);
        }

        if (j2 == W + 1) ans = max (ans, W - j);
        else
        {
            int curr = solve (i, j2) + j2 - j;
            ans = max (ans, curr);
        }
    }
    else
    {
        int i1, i2;
        getI1I2 (i, i1, i2, C[j]);

        if (i1 == 0) ans = max (ans, i - 1);
        else
        {
            int curr = solve (i1, j) + i - i1;
            ans = max (ans, curr);
        }

        if (i2 == H + 1) ans = max (ans, H - i);
        else
        {
            int curr = solve (i2, j) + i2 - i;
            ans = max (ans, curr);
        }
    }
    mp[{i, j}] = ans;
    return ans;
}

void read ()
{
    scanf ("%d %d %d", &H, &W, &Q);
    for (int i=1; i<=H; i++)
        scanf ("%d", &L[i]), rmqL[0][i] = L[i];
    for (int j=1; j<=W; j++)
        scanf ("%d", &C[j]), rmqC[0][j] = C[j];
    for (int i=1; i<=max (H, W); i++)
    {
        lg[i] = lg[i - 1];
        if ((2 << lg[i]) <= i) lg[i] ++;
    }
    for (int i=1; i<=lg[H]; i++)
        for (int j=1; j + (1 << i) - 1 <= H; j++)
            rmqL[i][j] = max (rmqL[i - 1][j], rmqL[i - 1][j + (1 << (i - 1))]);
    for (int i=1; i<=lg[W]; i++)
        for (int j=1; j + (1 << i) - 1 <= W; j++)
            rmqC[i][j] = max (rmqC[i - 1][j], rmqC[i - 1][j + (1 << (i - 1))]);
}

int dx[] = {-1, 1, 0, 0};
int dy[] = {0, 0, -1, 1};
int oh[] = {0, 0, 1, 1};

bool valid (int i, int j)
{
    return (1 <= i && i <= H && 1 <= j && j <= W);
}

int main ()
{
//freopen ("input", "r", stdin);
//freopen ("output", "w", stdout);

read ();
while (Q --)
{
    int x, y, ans = 0;
    scanf ("%d %d", &x, &y);
    for (int k=0; k<4; k++)
    {
        int i = x + dx[k], j = y + dy[k], steps = 1;
        while (1)
        {
            if (!valid (i, j)) break;
            if ((L[i] > C[j]) != oh[k])
            {
                int curr = solve (i, j) + steps;
                if (curr > ans)
                    ans = curr;
                break;
            }
            if (steps > ans)
                ans = steps;
            steps ++, i += dx[k], j += dy[k];
        }
    }
    printf ("%d\n", ans);
}

return 0;
}

Compilation message

In file included from /usr/include/c++/7/bits/hashtable.h:35:0,
                 from /usr/include/c++/7/unordered_map:47,
                 from /usr/include/c++/7/functional:60,
                 from /usr/include/x86_64-linux-gnu/c++/7/bits/stdc++.h:71,
                 from abduction2.cpp:1:
/usr/include/c++/7/bits/hashtable_policy.h: In instantiation of 'struct std::__detail::__is_noexcept_hash<std::pair<int, int>, std::hash<std::pair<int, int> > >':
/usr/include/c++/7/type_traits:143:12:   required from 'struct std::__and_<std::__is_fast_hash<std::hash<std::pair<int, int> > >, std::__detail::__is_noexcept_hash<std::pair<int, int>, std::hash<std::pair<int, int> > > >'
/usr/include/c++/7/type_traits:154:31:   required from 'struct std::__not_<std::__and_<std::__is_fast_hash<std::hash<std::pair<int, int> > >, std::__detail::__is_noexcept_hash<std::pair<int, int>, std::hash<std::pair<int, int> > > > >'
/usr/include/c++/7/bits/unordered_map.h:103:66:   required from 'class std::unordered_map<std::pair<int, int>, int>'
abduction2.cpp:6:42:   required from here
/usr/include/c++/7/bits/hashtable_policy.h:87:34: error: no match for call to '(const std::hash<std::pair<int, int> >) (const std::pair<int, int>&)'
  noexcept(declval<const _Hash&>()(declval<const _Key&>()))>
           ~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~
In file included from /usr/include/c++/7/bits/move.h:54:0,
                 from /usr/include/c++/7/bits/stl_pair.h:59,
                 from /usr/include/c++/7/bits/stl_algobase.h:64,
                 from /usr/include/c++/7/bits/specfun.h:45,
                 from /usr/include/c++/7/cmath:1914,
                 from /usr/include/x86_64-linux-gnu/c++/7/bits/stdc++.h:41,
                 from abduction2.cpp:1:
/usr/include/c++/7/type_traits: In instantiation of 'struct std::__not_<std::__and_<std::__is_fast_hash<std::hash<std::pair<int, int> > >, std::__detail::__is_noexcept_hash<std::pair<int, int>, std::hash<std::pair<int, int> > > > >':
/usr/include/c++/7/bits/unordered_map.h:103:66:   required from 'class std::unordered_map<std::pair<int, int>, int>'
abduction2.cpp:6:42:   required from here
/usr/include/c++/7/type_traits:154:31: error: 'value' is not a member of 'std::__and_<std::__is_fast_hash<std::hash<std::pair<int, int> > >, std::__detail::__is_noexcept_hash<std::pair<int, int>, std::hash<std::pair<int, int> > > >'
     : public __bool_constant<!bool(_Pp::value)>
                               ^~~~~~~~~~~~~~~~
In file included from /usr/include/c++/7/unordered_map:48:0,
                 from /usr/include/c++/7/functional:60,
                 from /usr/include/x86_64-linux-gnu/c++/7/bits/stdc++.h:71,
                 from abduction2.cpp:1:
/usr/include/c++/7/bits/unordered_map.h: In instantiation of 'class std::unordered_map<std::pair<int, int>, int>':
abduction2.cpp:6:42:   required from here
/usr/include/c++/7/bits/unordered_map.h:103:66: error: 'value' is not a member of 'std::__not_<std::__and_<std::__is_fast_hash<std::hash<std::pair<int, int> > >, std::__detail::__is_noexcept_hash<std::pair<int, int>, std::hash<std::pair<int, int> > > > >'
       typedef __umap_hashtable<_Key, _Tp, _Hash, _Pred, _Alloc>  _Hashtable;
                                                                  ^~~~~~~~~~
/usr/include/c++/7/bits/unordered_map.h:110:45: error: 'value' is not a member of 'std::__not_<std::__and_<std::__is_fast_hash<std::hash<std::pair<int, int> > >, std::__detail::__is_noexcept_hash<std::pair<int, int>, std::hash<std::pair<int, int> > > > >'
       typedef typename _Hashtable::key_type key_type;
                                             ^~~~~~~~
/usr/include/c++/7/bits/unordered_map.h:111:47: error: 'value' is not a member of 'std::__not_<std::__and_<std::__is_fast_hash<std::hash<std::pair<int, int> > >, std::__detail::__is_noexcept_hash<std::pair<int, int>, std::hash<std::pair<int, int> > > > >'
       typedef typename _Hashtable::value_type value_type;
                                               ^~~~~~~~~~
/usr/include/c++/7/bits/unordered_map.h:112:48: error: 'value' is not a member of 'std::__not_<std::__and_<std::__is_fast_hash<std::hash<std::pair<int, int> > >, std::__detail::__is_noexcept_hash<std::pair<int, int>, std::hash<std::pair<int, int> > > > >'
       typedef typename _Hashtable::mapped_type mapped_type;
                                                ^~~~~~~~~~~
/usr/include/c++/7/bits/unordered_map.h:113:43: error: 'value' is not a member of 'std::__not_<std::__and_<std::__is_fast_hash<std::hash<std::pair<int, int> > >, std::__detail::__is_noexcept_hash<std::pair<int, int>, std::hash<std::pair<int, int> > > > >'
       typedef typename _Hashtable::hasher hasher;
                                           ^~~~~~
/usr/include/c++/7/bits/unordered_map.h:114:46: error: 'value' is not a member of 'std::__not_<std::__and_<std::__is_fast_hash<std::hash<std::pair<int, int> > >, std::__detail::__is_noexcept_hash<std::pair<int, int>, std::hash<std::pair<int, int> > > > >'
       typedef typename _Hashtable::key_equal key_equal;
                                              ^~~~~~~~~
/usr/include/c++/7/bits/unordered_map.h:115:51: error: 'value' is not a member of 'std::__not_<std::__and_<std::__is_fast_hash<std::hash<std::pair<int, int> > >, std::__detail::__is_noexcept_hash<std::pair<int, int>, std::hash<std::pair<int, int> > > > >'
       typedef typename _Hashtable::allocator_type allocator_type;
                                                   ^~~~~~~~~~~~~~
/usr/include/c++/7/bits/unordered_map.h:120:45: error: 'value' is not a member of 'std::__not_<std::__and_<std::__is_fast_hash<std::hash<std::pair<int, int> > >, std::__detail::__is_noexcept_hash<std::pair<int, int>, std::hash<std::pair<int, int> > > > >'
       typedef typename _Hashtable::pointer  pointer;
                                             ^~~~~~~
/usr/include/c++/7/bits/unordered_map.h:121:50: error: 'value' is not a member of 'std::__not_<std::__and_<std::__is_fast_hash<std::hash<std::pair<int, int> > >, std::__detail::__is_noexcept_hash<std::pair<int, int>, std::hash<std::pair<int, int> > > > >'
       typedef typename _Hashtable::const_pointer const_pointer;
                                                  ^~~~~~~~~~~~~
/usr/include/c++/7/bits/unordered_map.h:122:47: error: 'value' is not a member of 'std::__not_<std::__and_<std::__is_fast_hash<std::hash<std::pair<int, int> > >, std::__detail::__is_noexcept_hash<std::pair<int, int>, std::hash<std::pair<int, int> > > > >'
       typedef typename _Hashtable::reference  reference;
                                               ^~~~~~~~~
/usr/include/c++/7/bits/unordered_map.h:123:52: error: 'value' is not a member of 'std::__not_<std::__and_<std::__is_fast_hash<std::hash<std::pair<int, int> > >, std::__detail::__is_noexcept_hash<std::pair<int, int>, std::hash<std::pair<int, int> > > > >'
       typedef typename _Hashtable::const_reference const_reference;
                                                    ^~~~~~~~~~~~~~~
/usr/include/c++/7/bits/unordered_map.h:124:46: error: 'value' is not a member of 'std::__not_<std::__and_<std::__is_fast_hash<std::hash<std::pair<int, int> > >, std::__detail::__is_noexcept_hash<std::pair<int, int>, std::hash<std::pair<int, int> > > > >'
       typedef typename _Hashtable::iterator  iterator;
                                              ^~~~~~~~
/usr/include/c++/7/bits/unordered_map.h:125:51: error: 'value' is not a member of 'std::__not_<std::__and_<std::__is_fast_hash<std::hash<std::pair<int, int> > >, std::__detail::__is_noexcept_hash<std::pair<int, int>, std::hash<std::pair<int, int> > > > >'
       typedef typename _Hashtable::const_iterator const_iterator;
                                                   ^~~~~~~~~~~~~~
/usr/include/c++/7/bits/unordered_map.h:126:51: error: 'value' is not a member of 'std::__not_<std::__and_<std::__is_fast_hash<std::hash<std::pair<int, int> > >, std::__detail::__is_noexcept_hash<std::pair<int, int>, std::hash<std::pair<int, int> > > > >'
       typedef typename _Hashtable::local_iterator local_iterator;
                                                   ^~~~~~~~~~~~~~
/usr/include/c++/7/bits/unordered_map.h:127:57: error: 'value' is not a member of 'std::__not_<std::__and_<std::__is_fast_hash<std::hash<std::pair<int, int> > >, std::__detail::__is_noexcept_hash<std::pair<int, int>, std::hash<std::pair<int, int> > > > >'
       typedef typename _Hashtable::const_local_iterator const_local_iterator;
                                                         ^~~~~~~~~~~~~~~~~~~~
/usr/include/c++/7/bits/unordered_map.h:128:47: error: 'value' is not a member of 'std::__not_<std::__and_<std::__is_fast_hash<std::hash<std::pair<int, int> > >, std::__detail::__is_noexcept_hash<std::pair<int, int>, std::hash<std::pair<int, int> > > > >'
       typedef typename _Hashtable::size_type  size_type;
                                               ^~~~~~~~~
/usr/include/c++/7/bits/unordered_map.h:129:52: error: 'value' is not a member of 'std::__not_<std::__and_<std::__is_fast_hash<std::hash<std::pair<int, int> > >, std::__detail::__is_noexcept_hash<std::pair<int, int>, std::hash<std::pair<int, int> > > > >'
       typedef typename _Hashtable::difference_type difference_type;
                                                    ^~~~~~~~~~~~~~~
/usr/include/c++/7/bits/unordered_map.h:133:55: error: 'value' is not a member of 'std::__not_<std::__and_<std::__is_fast_hash<std::hash<std::pair<int, int> > >, std::__detail::__is_noexcept_hash<std::pair<int, int>, std::hash<std::pair<int, int> > > > >'
       using node_type = typename _Hashtable::node_type;
                                                       ^
/usr/include/c++/7/bits/unordered_map.h:134:73: error: 'value' is not a member of 'std::__not_<std::__and_<std::__is_fast_hash<std::hash<std::pair<int, int> > >, std::__detail::__is_noexcept_hash<std::pair<int, int>, std::hash<std::pair<int, int> > > > >'
       using insert_return_type = typename _Hashtable::insert_return_type;
                                                                         ^
/usr/include/c++/7/bits/unordered_map.h:288:7: error: 'value' is not a member of 'std::__not_<std::__and_<std::__is_fast_hash<std::hash<std::pair<int, int> > >, std::__detail::__is_noexcept_hash<std::pair<int, int>, std::hash<std::pair<int, int> > > > >'
       operator=(initializer_list<value_type> __l)
       ^~~~~~~~
/usr/include/c++/7/bits/unordered_map.h:386:2: error: 'value' is not a member of 'std::__not_<std::__and_<std::__is_fast_hash<std::hash<std::pair<int, int> > >, std::__detail::__is_noexcept_hash<std::pair<int, int>, std::hash<std::pair<int, int> > > > >'
  emplace(_Args&&... __args)
  ^~~~~~~
/usr/include/c++/7/bits/unordered_map.h:469:9: error: 'value' is not a member of 'std::__not_<std::__and_<std::__is_fast_hash<std::hash<std::pair<int, int> > >, std::__detail::__is_noexcept_hash<std::pair<int, int>, std::hash<std::pair<int, int> > > > >'
         try_emplace(const key_type& __k, _Args&&... __args)
         ^~~~~~~~~~~
/usr/include/c++/7/bits/unordered_map.h:487:9: error: 'value' is not a member of 'std::__not_<std::__and_<std::__is_fast_hash<std::hash<std::pair<int, int> > >, std::__detail::__is_noexcept_hash<std::pair<int, int>, std::hash<std::pair<int, int> > > > >'
         try_emplace(key_type&& __k, _Args&&... __args)
         ^~~~~~~~~~~
/usr/include/c++/7/bits/unordered_map.h:578:7: error: 'value' is not a member of 'std::__not_<std::__and_<std::__is_fast_hash<std::hash<std::pair<int, int> > >, std::__detail::__is_noexcept_hash<std::pair<int, int>, std::hash<std::pair<int, int> > > > >'
       insert(const value_type& __x)
       ^~~~~~
/usr/include/c++/7/bits/unordered_map.h:584:7: error: 'value' is not a member of 'std::__not_<std::__and_<std::__is_fast_hash<std::hash<std::pair<int, int> > >, std::__detail::__is_noexcept_hash<std::pair<int, int>, std::hash<std::pair<int, int> > > > >'
       insert(value_type&& __x)
       ^~~~~~
/usr/include/c++/7/bits/unordered_map.h:591:2: error: 'value' is not a member of 'std::__not_<std::__and_<std::__is_fast_hash<std::hash<std::pair<int, int> > >, std::__detail::__is_noexcept_hash<std::pair<int, int>, std::hash<std::pair<int, int> > > > >'
  insert(_Pair&& __x)
  ^~~~~~
/usr/include/c++/7/bits/unordered_map.h:657:7: error: 'value' is not a member of 'std::__not_<std::__and_<std::__is_fast_hash<std::hash<std::pair<int, int> > >, std::__detail::__is_noexcept_hash<std::pair<int, int>, std::hash<std::pair<int, int> > > > >'
       insert(initializer_list<value_type> __l)
       ^~~~~~
/usr/include/c++/7/bits/unordered_map.h:685:9: error: 'value' is not a member of 'std::__not_<std::__and_<std::__is_fast_hash<std::hash<std::pair<int, int> > >, std::__detail::__is_noexcept_hash<std::pair<int, int>, std::hash<std::pair<int, int> > > > >'
         insert_or_assign(const key_type& __k, _Obj&& __obj)
         ^~~~~~~~~~~~~~~~
/usr/include/c++/7/bits/unordered_map.h:703:9: error: 'value' is not a member of 'std::__not_<std::__and_<std::__is_fast_hash<std::hash<std::pair<int, int> > >, std::__detail::__is_noexcept_hash<std::pair<int, int>, std::hash<std::pair<int, int> > > > >'
         insert_or_assign(key_type&& __k, _Obj&& __obj)
         ^~~~~~~~~~~~~~~~
/usr/include/c++/7/bits/unordered_map.h:953:7: error: 'value' is not a member of 'std::__not_<std::__and_<std::__is_fast_hash<std::hash<std::pair<int, int> > >, std::__detail::__is_noexcept_hash<std::pair<int, int>, std::hash<std::pair<int, int> > > > >'
       equal_range(const key_type& __x)
       ^~~~~~~~~~~
/usr/include/c++/7/bits/unordered_map.h:957:7: error: 'value' is not a member of 'std::__not_<std::__and_<std::__is_fast_hash<std::hash<std::pair<int, int> > >, std::__detail::__is_noexcept_hash<std::pair<int, int>, std::hash<std::pair<int, int> > > > >'
       equal_range(const key_type& __x) const
       ^~~~~~~~~~~
abduction2.cpp: In function 'int solve(int, int)':
abduction2.cpp:32:12: error: 'class std::unordered_map<std::pair<int, int>, int>' has no member named 'count'
     if (mp.count ({i, j}))
            ^~~~~
abduction2.cpp:33:18: error: no match for 'operator[]' (operand types are 'std::unordered_map<std::pair<int, int>, int>' and '<brace-enclosed initializer list>')
         return mp[{i, j}];
                  ^
abduction2.cpp:73:7: error: no match for 'operator[]' (operand types are 'std::unordered_map<std::pair<int, int>, int>' and '<brace-enclosed initializer list>')
     mp[{i, j}] = ans;
       ^
abduction2.cpp: In function 'void read()':
abduction2.cpp:79:11: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     scanf ("%d %d %d", &H, &W, &Q);
     ~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~
abduction2.cpp:81:28: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
         scanf ("%d", &L[i]), rmqL[0][i] = L[i];
         ~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~
abduction2.cpp:83:28: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
         scanf ("%d", &C[j]), rmqC[0][j] = C[j];
         ~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~
abduction2.cpp: In function 'int main()':
abduction2.cpp:115:11: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     scanf ("%d %d", &x, &y);
     ~~~~~~^~~~~~~~~~~~~~~~~