Submission #262441

#	Time	Username	Problem	Language	Result	Execution time	Memory
262441		themax23	Detecting Molecules (IOI16_molecules)	C++17	100 / 100	62 ms	8396 KiB

molecules

#include "molecules.h"
#include <bits/stdc++.h>
using namespace std;
typedef long long ll;

std::vector<int> find_subset(int l, int u, std::vector<int> w) {
	int n = (int) w.size();
	vector<pair<ll,ll>> v;
	for(ll i = 0; i < n; ++i){
		pair<ll,ll> p = {w[i],i};
		v.push_back(p);
	}
	sort(v.begin(), v.end());
	ll i = 0, j = 0, sum = 0, ans = 0;
	while(i < n){
		while(sum < l && j < n)
			{sum += v[j].first; ++j;}
		if(sum >= l && sum <= u){ans = sum; break;}
		sum -= v[i].first; ++i;
	}
	//cerr << ans;
	vector<int> sub;
	while(i < j)
		{sub.push_back(v[i].second); ++i;}
	return sub;
	
}

Compilation message (stderr)

molecules.cpp: In function 'std::vector<int> find_subset(int, int, std::vector<int>)':
molecules.cpp:14:28: warning: variable 'ans' set but not used [-Wunused-but-set-variable]
   14 |  ll i = 0, j = 0, sum = 0, ans = 0;
      |                            ^~~

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