Submission #726961

#	Time	Username	Problem	Language	Result	Execution time	Memory
726961		Nelt	Detecting Molecules (IOI16_molecules)	C++17	100 / 100	51 ms	7140 KiB

molecules

#pragma GCC optimize("O3,unroll-loops")
#pragma GCC target("avx,avx2,fma")

#include "molecules.h"
#include <bits/stdc++.h>
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>

/* DEFINES */
#define S second
#define F first
#define ll long long
#define ull unsigned long long
#define ld long double
#define npos ULLONG_MAX
#define INF LLONG_MAX
#define vv(a) vector<a>
#define pp(a, b) pair<a, b>
#define pq(a) priority_queue<a>
#define qq(a) queue<a>
#define ss(a) set<a>
#define mm(a, b) map<a, b>
#define ump(a, b) unordered_map<a, b>
#define sync                      \
    ios_base::sync_with_stdio(0); \
    cin.tie(0);                   \
    cout.tie(0);
#define elif else if
#define endl "\n"
#define allc(a) begin(a), end(a)
#define all(a) a, a + sizeof(a) / sizeof(a[0])
#define pb push_back
#define logi(a) __lg(a)
#define sqrt(a) sqrtl(a)
#define mpr make_pair
#define ins insert
using namespace std;
using namespace __gnu_pbds;
using namespace __cxx11;
typedef char chr;
typedef basic_string<chr> str;
template <typename T, typename key = less<T>>
using ordered_set = tree<T, null_type, key, rb_tree_tag, tree_order_statistics_node_update>;
mt19937 rng(chrono::steady_clock::now().time_since_epoch().count());
vv(int) find_subset(int mn, int mx, vv(int) w)
{
    ll n = w.size();
    pp(ll, ll) b[n];
    for (ll i = 0; i < n; i++)
        b[i].F = w[i], b[i].S = i;
    sort(all(b));
    ll sum = 0;
    for (ll l = 0, r = 0; l < n; l++)
    {
        r = max(r, l);
        while (r < n and sum + b[r].F < mn)
            sum += b[r++].F;
        if (r < n and sum + b[r].F >= mn and sum + b[r].F <= mx)
        {
            vv(int) ans;
            while (l <= r)
                ans.pb(b[l++].S);
            sort(allc(ans));
            return ans;
        }
        if (l != r)
            sum -= b[l].F;
    }
    return {};
}
void solve()
{
    
}
/*

*/
// int main()
// {
//     sync
//         // precomp();
//         ll t = 1;
//     // cin >> t;
//     for (ll i = 1; i <= t; i++)
//         // cout << "Case #" << i << ": ",
//         solve();
//     cerr << "\nTime elapsed : " << clock() * 1000.0 / CLOCKS_PER_SEC << " ms\n";
// }

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