Submission #520698

#	Time	Username	Problem	Language	Result	Execution time	Memory
520698		d4xn	The Big Prize (IOI17_prize)	C++17	Compilation error	0 ms	0 KiB

prize

#include "prize.h"
#include <vector>
#include <map>
using namespace std;

#define int long long

map<int, vector<int>> dp;

int search(int l, int r) {
	if (l > r) return -1;
	if (l == r) {
		vector<int> ans;
		if (dp.find(l) != dp.end()) ans = dp[l];
		else {
			ans = ask(l);
			dp[l] = ans;
		}

		if (ans[0] == 0 && ans[1] == 0) return l;
		return -1;
	}
	
	int m = (l+r)/2;
	vector<int> ans;
	if (dp.find(m) != dp.end()) ans = dp[m];
	else {
		ans = ask(m);
		dp[m] = ans;
	}
	
	if (ans[0] == 0 && ans[1] == 0) return m;
	else if (ans[0] == 0) {
		return search(m+1, r);
	}
	else if (ans[1] == 0) {
		return search(l, m-1);
	}
	else {
		int ans1, ans2;
		ans1 = search(l, m-1);
		ans2 = search(m+1, r);
		return (ans1 == -1 ? ans2 : ans1);
	}

	return -1;
}

int find_best(int n) {
	return search(0, n-1);
}

Compilation message (stderr)

prize.cpp: In function 'long long int search(long long int, long long int)':
prize.cpp:16:15: error: no match for 'operator=' (operand types are 'std::vector<long long int>' and 'std::vector<int>')
   16 |    ans = ask(l);
      |               ^
In file included from /usr/include/c++/10/vector:72,
                 from prize.h:1,
                 from prize.cpp:1:
/usr/include/c++/10/bits/vector.tcc:198:5: note: candidate: 'std::vector<_Tp, _Alloc>& std::vector<_Tp, _Alloc>::operator=(const std::vector<_Tp, _Alloc>&) [with _Tp = long long int; _Alloc = std::allocator<long long int>]'
  198 |     vector<_Tp, _Alloc>::
      |     ^~~~~~~~~~~~~~~~~~~
/usr/include/c++/10/bits/vector.tcc:199:42: note:   no known conversion for argument 1 from 'std::vector<int>' to 'const std::vector<long long int>&'
  199 |     operator=(const vector<_Tp, _Alloc>& __x)
      |               ~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~
In file included from /usr/include/c++/10/vector:67,
                 from prize.h:1,
                 from prize.cpp:1:
/usr/include/c++/10/bits/stl_vector.h:709:7: note: candidate: 'std::vector<_Tp, _Alloc>& std::vector<_Tp, _Alloc>::operator=(std::vector<_Tp, _Alloc>&&) [with _Tp = long long int; _Alloc = std::allocator<long long int>]'
  709 |       operator=(vector&& __x) noexcept(_Alloc_traits::_S_nothrow_move())
      |       ^~~~~~~~
/usr/include/c++/10/bits/stl_vector.h:709:26: note:   no known conversion for argument 1 from 'std::vector<int>' to 'std::vector<long long int>&&'
  709 |       operator=(vector&& __x) noexcept(_Alloc_traits::_S_nothrow_move())
      |                 ~~~~~~~~~^~~
/usr/include/c++/10/bits/stl_vector.h:730:7: note: candidate: 'std::vector<_Tp, _Alloc>& std::vector<_Tp, _Alloc>::operator=(std::initializer_list<_Tp>) [with _Tp = long long int; _Alloc = std::allocator<long long int>]'
  730 |       operator=(initializer_list<value_type> __l)
      |       ^~~~~~~~
/usr/include/c++/10/bits/stl_vector.h:730:46: note:   no known conversion for argument 1 from 'std::vector<int>' to 'std::initializer_list<long long int>'
  730 |       operator=(initializer_list<value_type> __l)
      |                 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~
prize.cpp:28:14: error: no match for 'operator=' (operand types are 'std::vector<long long int>' and 'std::vector<int>')
   28 |   ans = ask(m);
      |              ^
In file included from /usr/include/c++/10/vector:72,
                 from prize.h:1,
                 from prize.cpp:1:
/usr/include/c++/10/bits/vector.tcc:198:5: note: candidate: 'std::vector<_Tp, _Alloc>& std::vector<_Tp, _Alloc>::operator=(const std::vector<_Tp, _Alloc>&) [with _Tp = long long int; _Alloc = std::allocator<long long int>]'
  198 |     vector<_Tp, _Alloc>::
      |     ^~~~~~~~~~~~~~~~~~~
/usr/include/c++/10/bits/vector.tcc:199:42: note:   no known conversion for argument 1 from 'std::vector<int>' to 'const std::vector<long long int>&'
  199 |     operator=(const vector<_Tp, _Alloc>& __x)
      |               ~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~
In file included from /usr/include/c++/10/vector:67,
                 from prize.h:1,
                 from prize.cpp:1:
/usr/include/c++/10/bits/stl_vector.h:709:7: note: candidate: 'std::vector<_Tp, _Alloc>& std::vector<_Tp, _Alloc>::operator=(std::vector<_Tp, _Alloc>&&) [with _Tp = long long int; _Alloc = std::allocator<long long int>]'
  709 |       operator=(vector&& __x) noexcept(_Alloc_traits::_S_nothrow_move())
      |       ^~~~~~~~
/usr/include/c++/10/bits/stl_vector.h:709:26: note:   no known conversion for argument 1 from 'std::vector<int>' to 'std::vector<long long int>&&'
  709 |       operator=(vector&& __x) noexcept(_Alloc_traits::_S_nothrow_move())
      |                 ~~~~~~~~~^~~
/usr/include/c++/10/bits/stl_vector.h:730:7: note: candidate: 'std::vector<_Tp, _Alloc>& std::vector<_Tp, _Alloc>::operator=(std::initializer_list<_Tp>) [with _Tp = long long int; _Alloc = std::allocator<long long int>]'
  730 |       operator=(initializer_list<value_type> __l)
      |       ^~~~~~~~
/usr/include/c++/10/bits/stl_vector.h:730:46: note:   no known conversion for argument 1 from 'std::vector<int>' to 'std::initializer_list<long long int>'
  730 |       operator=(initializer_list<value_type> __l)
      |                 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~