Submission #75543

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
75543	2018-09-10T08:25:37 Z	noclever	Vudu (COCI15_vudu)	C++14	Compilation error	0 ms	0 KB

vudu

#include <iostream>
#include <vector>
#include <algorithm>
#include <map>
 
using namespace std;
 
template<typename T>
class fenwick {
  private:
    int n;
    vector<T> fenw;
  public:
 
    fenwick(int _n) : n(_n) {
      fenw.resize(n);
    }
 
    void modify(int x, T v) {
      while (x < n) {
        fenw[x] += v;
        x |= (x + 1);
      }
    }
 
    T get(int x) {
      T v{};
      while (x >= 0) {
        v += fenw[x];
        x = (x & (x + 1)) - 1;
      }
      return v;
    }
};
 
int main() {
  ios::sync_with_stdio(false);
  cin.tie(0);
  int n;
  cin >> n;
  vector<long long> a(n);
  vector<long long> b(n);
  for (int i = 0; i < n; i++) {
    cin >> a[i];
  }
  long long p;
  cin >> p;
  for (int i = 0; i < n; i++) {
    a[i] -= p;
  }
  b[0] = a[0];
  for (int i = 1; i < n; i++) {
    a[i] += a[i - 1];
    b[i] = a[i];
  } 
  sort(unique(b.begin(), b.end()));
  map<long long, int> mp;
  for (int i = 0; i < n; i++) {
    mp[a[i]] = lower_bound(b.begin(), b.end(), a[i]) - b.begin();
  }
  fenwick<long long> fenw(n);
  long long ans = 0ll;
  for (int i = 0; i < n; i++) {
    if (a[i] >= 0) {
      ans++;
    }
    int tmp = mp[a[i]];
    ans += (fenw.get(tmp));
    fenw.modify(tmp, +1);
  }
  cout << ans << endl;
  return 0;
}

Compilation message

vudu.cpp: In function 'int main()':
vudu.cpp:56:34: error: no matching function for call to 'sort(__gnu_cxx::__normal_iterator<long long int*, std::vector<long long int> >)'
   sort(unique(b.begin(), b.end()));
                                  ^
In file included from /usr/include/c++/7/algorithm:62:0,
                 from vudu.cpp:3:
/usr/include/c++/7/bits/stl_algo.h:4826:5: note: candidate: template<class _RAIter> void std::sort(_RAIter, _RAIter)
     sort(_RandomAccessIterator __first, _RandomAccessIterator __last)
     ^~~~
/usr/include/c++/7/bits/stl_algo.h:4826:5: note:   template argument deduction/substitution failed:
vudu.cpp:56:34: note:   candidate expects 2 arguments, 1 provided
   sort(unique(b.begin(), b.end()));
                                  ^
In file included from /usr/include/c++/7/algorithm:62:0,
                 from vudu.cpp:3:
/usr/include/c++/7/bits/stl_algo.h:4856:5: note: candidate: template<class _RAIter, class _Compare> void std::sort(_RAIter, _RAIter, _Compare)
     sort(_RandomAccessIterator __first, _RandomAccessIterator __last,
     ^~~~
/usr/include/c++/7/bits/stl_algo.h:4856:5: note:   template argument deduction/substitution failed:
vudu.cpp:56:34: note:   candidate expects 3 arguments, 1 provided
   sort(unique(b.begin(), b.end()));
                                  ^