Submission #433448

#	Time	Username	Problem	Language	Result	Execution time	Memory
433448		bipartite_matching	Detecting Molecules (IOI16_molecules)	C++14	10 / 100	1 ms	204 KiB

molecules

#include <bits/stdc++.h>
#define forint(i, N) for (int i = 0; i < (N); i++)

using namespace std;

typedef long long ll;

vector<int> find_subset(int l, int u, vector<int> w) {
	//sort(w.begin(), w.end());
	vector< pair<int, int> > v(w.size());
	forint(i, w.size()) {
		v[i] = {w[i], i};
	}
	sort(v.begin(), v.end());

	vector<int> ans;

	int k = 1;
	int f = 0;
	ll sum = v[0].first;

	while (sum < l && k < v.size()) {
		sum += (ll)v[k].first;

		if (sum > u) {

			sum -= (ll)v[f].first;
			f++;
		}
		
		k++;
	}
	if (sum < l) {
		return ans;
	}
	
	else {
		ans.resize(k - f);
		for (int i = f; i < k; i++) {
			ans[i - f] = v[i].second;
		}
		sort(ans.begin(), ans.end());
		return ans;
	}
}

Compilation message (stderr)

molecules.cpp: In function 'std::vector<int> find_subset(int, int, std::vector<int>)':
molecules.cpp:2:40: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
    2 | #define forint(i, N) for (int i = 0; i < (N); i++)
      |                                        ^
molecules.cpp:11:2: note: in expansion of macro 'forint'
   11 |  forint(i, w.size()) {
      |  ^~~~~~
molecules.cpp:22:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   22 |  while (sum < l && k < v.size()) {
      |                    ~~^~~~~~~~~~

• Subtask 1: 0 / 9
• Subtask 2: 10 / 10
• Subtask 3: 0 / 12
• Subtask 4: 0 / 15
• Subtask 5: 0 / 23
• Subtask 6: 0 / 31