Submission #241170

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
241170	2020-06-23T07:49:39 Z	crossing0ver	Detecting Molecules (IOI16_molecules)	C++17	Compilation error	0 ms	0 KB

molecules

#include<bits/stdc++.h>
#include "molecules.h"
using namespace std;
vector<int> answer(deque<int> v) {
	vector<int> ans;
	ans.clear();
	for (int i = 0; i < v.size(); i++) {
		ans.push_back(v[i]);
	}
	return ans;
}
vector<int> find_subset(int l, int u, vector<int> w1) {
	int n = w.size();
	vector<pair<int,int> > w;
	for (int i = 0; i < w1.size(); i++) w.push_back({w1[i],i});
	
	sort(w.begin(),w.end());
	long long tot = 0;
	deque<int> v;
	vector<int> ans;
	ans.clear();
	if (w[0] > u) return ans;
	for (int i = 0; i < n; i++) {
		if ( tot + w[i].first < l) {
			tot+=w[i].first;
			v.push_back(w[i].second); 
		}	
	}
	for (int i = n - 1; i >= 0; i--) {
		if (w[i].first > u) n--;
	}
	int in = (v.size() > 0 ? v.back() : -1);
	for (int i = in + 1; i < n; i++) {
		if ( tot + w[i].first >= l &&  tot + w[i].first <= u) {
			v.push_back(w[i].second);
			return answer(v);
		}
		if (tot + w[i].first > u) {
			tot -= w[v.front()];
			v.pop_front();
		}
		tot += w[i].first;
			v.push_back(w[i].second);
		if (tot >= l && tot <= u) return answer(v);
	}
	return ans;
}


        

Compilation message

molecules.cpp: In function 'std::vector<int> answer(std::deque<int>)':
molecules.cpp:7:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
  for (int i = 0; i < v.size(); i++) {
                  ~~^~~~~~~~~~
molecules.cpp: In function 'std::vector<int> find_subset(int, int, std::vector<int>)':
molecules.cpp:13:10: error: 'w' was not declared in this scope
  int n = w.size();
          ^
molecules.cpp:15:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
  for (int i = 0; i < w1.size(); i++) w.push_back({w1[i],i});
                  ~~^~~~~~~~~~~