Submission #1028663

#	Time	Username	Problem	Language	Result	Execution time	Memory
1028663		parsadox2	Ancient Books (IOI17_books)	C++17	Compilation error	0 ms	0 KiB

books

#include "books.h"
#include <bits/stdc++.h>

using namespace std;

const int N = 1e6 + 10;

int a[N] , n;
bool marked[N];

long long minimum_walk(vector<int> p, int s) {
	n = p.size();
	long long ans = 0 , cnt = (p[0] == 0 ? 0 : 1);
	marked[p[0]] = true;
	for(int i = 1 ; i < n ; i++)
	{
		ans += max(2 * cnt , 2);
		if(p[i] > i)
		{
			cnt++;
			marked[p[i]] = true;
		}
		if(marked[i])
			cnt--;
	}
	for(int i = n - 1 ; i >= 1 ; i--)
	{
		if(p[i] != i)
			break;
		ans -= 2;
	}
	return ans;
}

Compilation message (stderr)

books.cpp: In function 'long long int minimum_walk(std::vector<int>, int)':
books.cpp:17:25: error: no matching function for call to 'max(long long int, int)'
   17 |   ans += max(2 * cnt , 2);
      |                         ^
In file included from /usr/include/c++/10/vector:60,
                 from books.h:1,
                 from books.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:
books.cpp:17:25: note:   deduced conflicting types for parameter 'const _Tp' ('long long int' and 'int')
   17 |   ans += max(2 * cnt , 2);
      |                         ^
In file included from /usr/include/c++/10/vector:60,
                 from books.h:1,
                 from books.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:
books.cpp:17:25: note:   deduced conflicting types for parameter 'const _Tp' ('long long int' and 'int')
   17 |   ans += max(2 * cnt , 2);
      |                         ^
In file included from /usr/include/c++/10/algorithm:62,
                 from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:65,
                 from books.cpp:2:
/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:
books.cpp:17:25: note:   mismatched types 'std::initializer_list<_Tp>' and 'long long int'
   17 |   ans += max(2 * cnt , 2);
      |                         ^
In file included from /usr/include/c++/10/algorithm:62,
                 from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:65,
                 from books.cpp:2:
/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:
books.cpp:17:25: note:   mismatched types 'std::initializer_list<_Tp>' and 'long long int'
   17 |   ans += max(2 * cnt , 2);
      |                         ^