# | Time | Username | Problem | Language | Result | Execution time | Memory |
---|---|---|---|---|---|---|---|
1069172 | kiethm07 | Detecting Molecules (IOI16_molecules) | C++11 | 2 ms | 780 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 <bits/stdc++.h>
#define pii pair<int,int>
#define iii pair<int,pii>
#define fi first
#define se second
#define vi vector<int>
#define vii vector<pii>
#define pb(i) push_back(i)
#define all(x) x.begin(),x.end()
#define TEXT "a"
using namespace std;
typedef long long ll;
typedef unsigned long long ull;
typedef long double ld;
const int inf = 1e9 + 7;
const ld eps = 1e-8;
const double pi = acos(-1);
vector<int> find_subset(int l,int r,vector<int> w){
int n = w.size();
vector<pii> a(n);
for (int i = 0; i < n; i++){
a[i] = pii(w[i],i);
}
sort(all(a));
vector<ll> pre(n), suf(n);
pre[0] = 0;
for (int i = 1; i < n; i++){
pre[i] = pre[i - 1] + a[i].fi - a[0].fi;
}
suf[n - 1] = a[n - 1].fi - a[0].fi;
for (int i = n - 2; i >= 0; i--){
suf[i] = suf[i + 1] + a[i].fi - a[0].fi;
}
vector<int> res;
for (ll x = 1; x <= n; x++){
ll c = l - x * a[0].fi;
ll d = r - x * a[0].fi;
if (pre[x - 1] > d || suf[n - x] < c) continue;
ll cur = 0;
for (int j = n - 1; j >= 0; j--){
int p = a[j].fi - a[0].fi;
if (cur + p > d) continue;
cur += p;
res.push_back(a[j].se);
if (res.size() == x) break;
}
break;
}
return res;
}
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