Submission #919364

#	Time	Username	Problem	Language	Result	Execution time	Memory
919364		buzdi	Balloons (CEOI11_bal)	C++11	Compilation error	0 ms	0 KiB

bal

//#include <fstream>
#include <iostream>
#include <stack>
#include <queue>
#include <algorithm>
#include <vector>
#include <cassert>
#include <map>
#include <iomanip>
#define ll long long

using namespace std;

const int NMAX = 2e5;

struct Point
{
    int x, y;
    void Read()
    {
        cin >> x >> y;
    }
};

int n;
Point a[NMAX + 1];
long double answer[NMAX + 1];
stack<Point> st;

ll Square(int x)
{
    return (ll) x * x;
}

long double Radius(Point p1, Point p2)
{
    return (long double) Square(p2.x - p1.x) / (long double)(4.0 * p1.y);
}

int main()
{
    ios::sync_with_stdio(0);
    cin.tie(0);
    cout.tie(0);

    cin >> n;
    for(int i = 1; i <= n; i++)
        a[i].Read();

    for(int i = 1; i <= n; i++)
        for(int j = 1; j < i; j++)
            a[i].y = min(a[i].y, Radius(a[j], a[i]));

    for(int i = 1; i <= n; i++)
        cout << fixed << setprecision(3) << a[i].y << '\n';

    return 0;
}

Compilation message (stderr)

bal.cpp: In function 'int main()':
bal.cpp:52:52: error: no matching function for call to 'min(int&, long double)'
   52 |             a[i].y = min(a[i].y, Radius(a[j], a[i]));
      |                                                    ^
In file included from /usr/include/c++/10/bits/char_traits.h:39,
                 from /usr/include/c++/10/ios:40,
                 from /usr/include/c++/10/ostream:38,
                 from /usr/include/c++/10/iostream:39,
                 from bal.cpp:2:
/usr/include/c++/10/bits/stl_algobase.h:230:5: note: candidate: 'template<class _Tp> const _Tp& std::min(const _Tp&, const _Tp&)'
  230 |     min(const _Tp& __a, const _Tp& __b)
      |     ^~~
/usr/include/c++/10/bits/stl_algobase.h:230:5: note:   template argument deduction/substitution failed:
bal.cpp:52:52: note:   deduced conflicting types for parameter 'const _Tp' ('int' and 'long double')
   52 |             a[i].y = min(a[i].y, Radius(a[j], a[i]));
      |                                                    ^
In file included from /usr/include/c++/10/bits/char_traits.h:39,
                 from /usr/include/c++/10/ios:40,
                 from /usr/include/c++/10/ostream:38,
                 from /usr/include/c++/10/iostream:39,
                 from bal.cpp:2:
/usr/include/c++/10/bits/stl_algobase.h:278:5: note: candidate: 'template<class _Tp, class _Compare> const _Tp& std::min(const _Tp&, const _Tp&, _Compare)'
  278 |     min(const _Tp& __a, const _Tp& __b, _Compare __comp)
      |     ^~~
/usr/include/c++/10/bits/stl_algobase.h:278:5: note:   template argument deduction/substitution failed:
bal.cpp:52:52: note:   deduced conflicting types for parameter 'const _Tp' ('int' and 'long double')
   52 |             a[i].y = min(a[i].y, Radius(a[j], a[i]));
      |                                                    ^
In file included from /usr/include/c++/10/algorithm:62,
                 from bal.cpp:5:
/usr/include/c++/10/bits/stl_algo.h:3468:5: note: candidate: 'template<class _Tp> _Tp std::min(std::initializer_list<_Tp>)'
 3468 |     min(initializer_list<_Tp> __l)
      |     ^~~
/usr/include/c++/10/bits/stl_algo.h:3468:5: note:   template argument deduction/substitution failed:
bal.cpp:52:52: note:   mismatched types 'std::initializer_list<_Tp>' and 'int'
   52 |             a[i].y = min(a[i].y, Radius(a[j], a[i]));
      |                                                    ^
In file included from /usr/include/c++/10/algorithm:62,
                 from bal.cpp:5:
/usr/include/c++/10/bits/stl_algo.h:3474:5: note: candidate: 'template<class _Tp, class _Compare> _Tp std::min(std::initializer_list<_Tp>, _Compare)'
 3474 |     min(initializer_list<_Tp> __l, _Compare __comp)
      |     ^~~
/usr/include/c++/10/bits/stl_algo.h:3474:5: note:   template argument deduction/substitution failed:
bal.cpp:52:52: note:   mismatched types 'std::initializer_list<_Tp>' and 'int'
   52 |             a[i].y = min(a[i].y, Radius(a[j], a[i]));
      |                                                    ^