Submission #1040389

#	Time	Username	Problem	Language	Result	Execution time	Memory
1040389		vjudge1	Divide and conquer (IZhO14_divide)	C++17	Compilation error	0 ms	0 KiB

divide

#include <bits/stdc++.h>
using namespace std;

int main()
{
    long long n;
    cin >> n;
    vector<long long> x(n+1), g(n+1), d(n+1), g1(n+1, 0), d1(n+1, 0);

    for (long long i = 1; i <= n; ++i)
    {
        cin >> x[i] >> g[i] >> d[i];
        g1[i] = g1[i-1] + g[i];
        d1[i] = d1[i-1] + d[i];
    }
    vector <int> h(n+1);
    for (int i=1; i<=n; i++) h[i]=-1e15;
    for (int i=n; i>=1; i--) h[i]=max(h[i+1],d1[i]-x[i]);

    long long res = 0;
    for (int i=1; i<=n; i++)
    {
        int l = i, r = n, temp;

        while(l <= r)
        {
            int mid = (l + r) / 2;

            if (h[mid] >= e[i - 1] - x[i])
            {
                temp = mid;
                l = mid + 1;
            }
            else r = mid - 1;
        }
        res=max(res,g[temp] - g[i - 1]);
    }
    cout << res;
    return 0;
}

Compilation message (stderr)

divide.cpp: In function 'int main()':
divide.cpp:17:35: warning: overflow in conversion from 'double' to '__gnu_cxx::__alloc_traits<std::allocator<int>, int>::value_type' {aka 'int'} changes value from '-1.0e+15' to '-2147483648' [-Woverflow]
   17 |     for (int i=1; i<=n; i++) h[i]=-1e15;
      |                                   ^~~~~
divide.cpp:18:56: error: no matching function for call to 'max(__gnu_cxx::__alloc_traits<std::allocator<int>, int>::value_type&, __gnu_cxx::__alloc_traits<std::allocator<long long int>, long long int>::value_type)'
   18 |     for (int i=n; i>=1; i--) h[i]=max(h[i+1],d1[i]-x[i]);
      |                                                        ^
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 divide.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:
divide.cpp:18:56: note:   deduced conflicting types for parameter 'const _Tp' ('int' and '__gnu_cxx::__alloc_traits<std::allocator<long long int>, long long int>::value_type' {aka 'long long int'})
   18 |     for (int i=n; i>=1; i--) h[i]=max(h[i+1],d1[i]-x[i]);
      |                                                        ^
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 divide.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:
divide.cpp:18:56: note:   deduced conflicting types for parameter 'const _Tp' ('int' and '__gnu_cxx::__alloc_traits<std::allocator<long long int>, long long int>::value_type' {aka 'long long int'})
   18 |     for (int i=n; i>=1; i--) h[i]=max(h[i+1],d1[i]-x[i]);
      |                                                        ^
In file included from /usr/include/c++/10/algorithm:62,
                 from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:65,
                 from divide.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:
divide.cpp:18:56: note:   mismatched types 'std::initializer_list<_Tp>' and 'int'
   18 |     for (int i=n; i>=1; i--) h[i]=max(h[i+1],d1[i]-x[i]);
      |                                                        ^
In file included from /usr/include/c++/10/algorithm:62,
                 from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:65,
                 from divide.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:
divide.cpp:18:56: note:   mismatched types 'std::initializer_list<_Tp>' and 'int'
   18 |     for (int i=n; i>=1; i--) h[i]=max(h[i+1],d1[i]-x[i]);
      |                                                        ^
divide.cpp:29:27: error: 'e' was not declared in this scope
   29 |             if (h[mid] >= e[i - 1] - x[i])
      |                           ^