# | Time | Username | Problem | Language | Result | Execution time | Memory |
---|---|---|---|---|---|---|---|
957161 | vjudge1 | Detecting Molecules (IOI16_molecules) | C++17 | 43 ms | 6956 KiB |
This submission is migrated from previous version of oj.uz, which used different machine for grading. This submission may have different result if resubmitted.
#include "molecules.h"
#include<bits/stdc++.h>
using namespace std;
#define fi first
#define se second
#define pii pair<int,int>
#define pll pair<long long, long long>
// jangan kebiasa kalah
// kalo OI, sampah aja dulu, tapi jangan menutup kemungkinan buat AC
vector<int> find_subset(int l, int u, std::vector<int> w)
{
int i, j, batas = 0;
vector<long long> pref((int)w.size(), 0);
vector<pair<int, int>> vec;
for(i=0;i<(int)w.size();i++)
{
vec.push_back({w[i], i});
}
sort(vec.begin(), vec.end());
for(i=0;i<(int)w.size();i++)
{
pref[i] = (long long)vec[i].fi;
if(i)
{
pref[i] += pref[i-1];
}
}
for(i=0;i<(int)w.size();i++)
{
if(pref[i] < (long long)l) continue;
if((long long)l <= pref[i] and pref[i] <= (long long)u)
{
vector<int> res;
for(j=0;j<=i;j++)
{
res.push_back(vec[j].se);
}
return res;
}
else
{
int lo = 1, hi = i, mid, sum = 0;
for(mid=(lo+hi)/2;lo<=hi;mid=(lo+hi)/2)
{
long long cur = pref[i] - pref[mid-1];
if(cur > (long long)u)
{
lo = mid+1;
}
else if(cur < (long long)l)
{
hi = mid-1;
}
else if((long long)l <= cur and cur <= (long long)u)
{
vector<int> res;
for(j=mid;j<=i;j++)
{
res.push_back(vec[j].se);
}
return res;
}
}
}
}
return vector<int>(0);
}
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