Submission #972409

#	Time	Username	Problem	Language	Result	Execution time	Memory
972409		Tanos	Detecting Molecules (IOI16_molecules)	C++17	Compilation error	0 ms	0 KiB

molecules

#include <bits/stdc++.h>

using namespace std;

#define ll long long
#define x first
#define y second
#define all(x) x.begin(), x.end()
#define el "\n"
#define pb push_back
#define pp pop_back
#define pii pair <int, int>
#define pll pair <ll, ll>
#define ibase ios_base::sync_with_stdio(0), cin.tie(0);

const int N = 5e5 + 5, M = 1e3 + 5, pw = 31;
const ll MAX = 1e15, inf = 1e9 + 7;

vector <int> find_subset(ll l, ll u, vector <int> a) {
	int n = a.size();
	vector<pair <int, int>> p;
	for (int i = 0; i < n; i++) {
		p.pb({a[i], i});
	}
	sort(p.begin(), p.end());
	reverse()
	ll sum = 0, j = 0, last = 0;
	for (int i = 0; i < n; i++) {
		sum += p[i].x;
		last = i;
		if (sum >= l && sum <= u) {
			break;
		}
		else if (sum >= l) {
			j = 0;
			while (sum > u)
				sum -= p[j++].x;
			if (sum >= l)
				break;
		}
	}
	if (l > sum || sum > u)
		return {};
	vector <int> ans;
	for (int i = j; i <= last; i++)
		ans.pb(p[i].y);
	return ans;
}



//void solve() {
//	

Compilation message (stderr)

molecules.cpp: In function 'std::vector<int> find_subset(long long int, long long int, std::vector<int>)':
molecules.cpp:26:10: error: no matching function for call to 'reverse()'
   26 |  reverse()
      |          ^
In file included from /usr/include/c++/10/algorithm:62,
                 from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:65,
                 from molecules.cpp:1:
/usr/include/c++/10/bits/stl_algo.h:1165:5: note: candidate: 'template<class _BIter> void std::reverse(_BIter, _BIter)'
 1165 |     reverse(_BidirectionalIterator __first, _BidirectionalIterator __last)
      |     ^~~~~~~
/usr/include/c++/10/bits/stl_algo.h:1165:5: note:   template argument deduction/substitution failed:
molecules.cpp:26:10: note:   candidate expects 2 arguments, 0 provided
   26 |  reverse()
      |          ^
In file included from /usr/include/c++/10/algorithm:74,
                 from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:65,
                 from molecules.cpp:1:
/usr/include/c++/10/pstl/glue_algorithm_defs.h:249:1: note: candidate: 'template<class _ExecutionPolicy, class _BidirectionalIterator> __pstl::__internal::__enable_if_execution_policy<_ExecutionPolicy, void> std::reverse(_ExecutionPolicy&&, _BidirectionalIterator, _BidirectionalIterator)'
  249 | reverse(_ExecutionPolicy&& __exec, _BidirectionalIterator __first, _BidirectionalIterator __last);
      | ^~~~~~~
/usr/include/c++/10/pstl/glue_algorithm_defs.h:249:1: note:   template argument deduction/substitution failed:
molecules.cpp:26:10: note:   candidate expects 3 arguments, 0 provided
   26 |  reverse()
      |          ^
molecules.cpp:29:3: error: 'sum' was not declared in this scope
   29 |   sum += p[i].x;
      |   ^~~
molecules.cpp:30:3: error: 'last' was not declared in this scope
   30 |   last = i;
      |   ^~~~
molecules.cpp:35:4: error: 'j' was not declared in this scope
   35 |    j = 0;
      |    ^
molecules.cpp:42:10: error: 'sum' was not declared in this scope
   42 |  if (l > sum || sum > u)
      |          ^~~
molecules.cpp:45:15: error: 'j' was not declared in this scope
   45 |  for (int i = j; i <= last; i++)
      |               ^
molecules.cpp:45:23: error: 'last' was not declared in this scope
   45 |  for (int i = j; i <= last; i++)
      |                       ^~~~