Submission #995165

#	Time	Username	Problem	Language	Result	Execution time	Memory
995165		cadmiumsky	Monochrome Points (JOI20_monochrome)	C++17	Compilation error	0 ms	0 KiB

monochrome

#include <bits/stdc++.h>
#define all(x) (x).begin(),(x).end()
using namespace std;

using ll = long long;
using ld = long double;

//#define int ll
#define sz(x) ((int)(x).size())

using pii = pair<int,int>;
using tii = tuple<int,int,int>;

const int nmax = 2e5 + 5;

#define lsb(x) (x & -x)
struct AIB {
   vector<int> tree;
   void init(int n) { tree.assign(n + 5, 0); }
   void upd(int p, int x) {
      while(p < sz(tree)) tree[p] += x, p += lsb(p);
   }
   int query(int p) {
      int sum = 0;
      while(p > 0) sum += tree[p], p -= lsb(p);
      return sum;
   }
};

int n;
mt19937 rng(chrono::steady_clock::now().time_since_epoch().count()); // trebuia sa o incerc
ll init(string s) {
   int a = rng() % (sz(s) + 1);
   s = s.substr(a) + s.substr(0, a);
   stringstream haha;
   haha << s;
   
   queue<int> que[2];
   AIB aib;
   aib.init(n);
   for(int i = 1; i <= n; i++) {
      char ch;
      haha >> ch;
      if(ch == 'B') que[0].emplace(i);
      else que[1].emplace(i);
   }
   
   for(int i = 1; i <= n; i++) aib.upd(i, 1);
   ll sum = 0;
   
   for(int i = 1; i <= n; i++) {
      char ch;
      int P;
      haha >> ch;
      if(ch == 'B') P = que[1].front(), que[1].pop();
      else P = que[0].front(), que[0].pop();
      sum += aib.query(n) - aib.query(P);
      aib.upd(P, -1);
   }
   return sum;
}

signed main() {
   ld S = clock();
   cin.tie(0) -> sync_with_stdio(0);
   cin >> n;
   
   string s;
   cin >> s;
   int rez = 0;
   while(clock() - S < (ld)CLOCKS_PER_SEC * 1.6)
      rez = max(rez, init(s));
   
}

/**
      Istenem! Nu poate fi real.
-- Surse verificate
*/

Compilation message (stderr)

monochrome.cpp: In function 'int main()':
monochrome.cpp:72:29: error: no matching function for call to 'max(int&, ll)'
   72 |       rez = max(rez, init(s));
      |                             ^
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 monochrome.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:
monochrome.cpp:72:29: note:   deduced conflicting types for parameter 'const _Tp' ('int' and 'll' {aka 'long long int'})
   72 |       rez = max(rez, init(s));
      |                             ^
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 monochrome.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:
monochrome.cpp:72:29: note:   deduced conflicting types for parameter 'const _Tp' ('int' and 'll' {aka 'long long int'})
   72 |       rez = max(rez, init(s));
      |                             ^
In file included from /usr/include/c++/10/algorithm:62,
                 from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:65,
                 from monochrome.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:
monochrome.cpp:72:29: note:   mismatched types 'std::initializer_list<_Tp>' and 'int'
   72 |       rez = max(rez, init(s));
      |                             ^
In file included from /usr/include/c++/10/algorithm:62,
                 from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:65,
                 from monochrome.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:
monochrome.cpp:72:29: note:   mismatched types 'std::initializer_list<_Tp>' and 'int'
   72 |       rez = max(rez, init(s));
      |                             ^