Submission #552921

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
552921	2022-04-24T10:12:25 Z	hoanghq2004	Lightning Conductor (POI11_pio)	C++14	Compilation error	0 ms	0 KB

pio

#include <bits/stdc++.h>
#pragma GCC optimize ("O3")
#pragma GCC optimize ("unroll-loops")
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>

using namespace __gnu_pbds;
using namespace std;

template <typename T>
using ordered_set = tree <T, null_type, less <T>, rb_tree_tag, tree_order_statistics_node_update>;

const int N = 5e5 + 10;

int n, h[N];

struct Line {
    int a, b, x;
    long double operator()(int x) {
        return sqrt(abs(a - x)) + b;
    }
    int operator[](int x) {
        return ceil(sqrt(abs(a - x))) + b;
    }
    int operator < (const Line& other) const {
        if (x != other.x) return x < other.x;
        if (a != other.a) return a < other.a;
        return b < other.b;
    }
};

int intersect(Line L1, Line L2) {
    int L = max(L1.a, L2.a), R = n + 1;
    while (R - L > 1) {
        int mid = L + R >> 1;
        if (L1[mid] >= L2[mid]) L = mid;
        else R = mid;
    }
    if (L1[L] < L2[L]) return L;
    else return R;
}

int bad(Line L1, Line L2, Line L3) {
    return intersect(L1, L3) <= intersect(L1, L2);
}

int f[N];

int main() {
    ios :: sync_with_stdio(0); cin.tie(0);
    cin >> n;
    for (int i = 1; i <= n; ++i) cin >> h[i];
    vector <Line> convex;
    for (int i = 1, cur = 0; i <= n; ++i) {
        if (i > 1) {
            auto iter = --lower_bound(convex.begin(), convex.end(), (Line){(int)1e9, 0, i});
            f[i] = max(f[i], - h[i] + (*iter)(i));
        }
        //
        if (convex.size() && h[i] <= cur) continue;
        Line L = {i, h[i], 0};
        cur = h[i];
        while (convex.size() >= 2 && bad(convex.end()[-2], convex.back(), L)) convex.pop_back();
        L.x = (convex.empty() ? 1 : intersect(convex.back(), L));
        convex.push_back(L);
    }
    convex.clear();
    reverse(h + 1, h + n + 1);
    for (int i = 1, cur = 0; i <= n; ++i) {
        if (i > 1) {
            auto iter = --lower_bound(convex.begin(), convex.end(), (Line){(int)1e9, 0, i});
            f[n - i + 1] = max(f[n - i + 1], - h[i] + (*iter)(i));
        }
        //
        if (convex.size() && h[i] <= cur) continue;
        Line L = {i, h[i], 0};
        cur = h[i];
        while (convex.size() >= 2 && bad(convex.end()[-2], convex.back(), L)) convex.pop_back();
        L.x = (convex.empty() ? 1 : intersect(convex.back(), L));
        convex.push_back(L);
    }
    for (int i = 1; i <= n; ++i) cout << f[i] << '\n';
}

Compilation message

pio.cpp: In function 'int intersect(Line, Line)':
pio.cpp:35:21: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   35 |         int mid = L + R >> 1;
      |                   ~~^~~
pio.cpp: In function 'int main()':
pio.cpp:57:49: error: no matching function for call to 'max(int&, long double)'
   57 |             f[i] = max(f[i], - h[i] + (*iter)(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/istream:38,
                 from /usr/include/c++/10/sstream:38,
                 from /usr/include/c++/10/complex:45,
                 from /usr/include/c++/10/ccomplex:39,
                 from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:54,
                 from pio.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:
pio.cpp:57:49: note:   deduced conflicting types for parameter 'const _Tp' ('int' and 'long double')
   57 |             f[i] = max(f[i], - h[i] + (*iter)(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/istream:38,
                 from /usr/include/c++/10/sstream:38,
                 from /usr/include/c++/10/complex:45,
                 from /usr/include/c++/10/ccomplex:39,
                 from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:54,
                 from pio.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:
pio.cpp:57:49: note:   deduced conflicting types for parameter 'const _Tp' ('int' and 'long double')
   57 |             f[i] = max(f[i], - h[i] + (*iter)(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 pio.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:
pio.cpp:57:49: note:   mismatched types 'std::initializer_list<_Tp>' and 'int'
   57 |             f[i] = max(f[i], - h[i] + (*iter)(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 pio.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:
pio.cpp:57:49: note:   mismatched types 'std::initializer_list<_Tp>' and 'int'
   57 |             f[i] = max(f[i], - h[i] + (*iter)(i));
      |                                                 ^
pio.cpp:72:65: error: no matching function for call to 'max(int&, long double)'
   72 |             f[n - i + 1] = max(f[n - i + 1], - h[i] + (*iter)(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/istream:38,
                 from /usr/include/c++/10/sstream:38,
                 from /usr/include/c++/10/complex:45,
                 from /usr/include/c++/10/ccomplex:39,
                 from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:54,
                 from pio.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:
pio.cpp:72:65: note:   deduced conflicting types for parameter 'const _Tp' ('int' and 'long double')
   72 |             f[n - i + 1] = max(f[n - i + 1], - h[i] + (*iter)(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/istream:38,
                 from /usr/include/c++/10/sstream:38,
                 from /usr/include/c++/10/complex:45,
                 from /usr/include/c++/10/ccomplex:39,
                 from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:54,
                 from pio.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:
pio.cpp:72:65: note:   deduced conflicting types for parameter 'const _Tp' ('int' and 'long double')
   72 |             f[n - i + 1] = max(f[n - i + 1], - h[i] + (*iter)(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 pio.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:
pio.cpp:72:65: note:   mismatched types 'std::initializer_list<_Tp>' and 'int'
   72 |             f[n - i + 1] = max(f[n - i + 1], - h[i] + (*iter)(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 pio.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:
pio.cpp:72:65: note:   mismatched types 'std::initializer_list<_Tp>' and 'int'
   72 |             f[n - i + 1] = max(f[n - i + 1], - h[i] + (*iter)(i));
      |                                                                 ^