Submission #948390

#	Time	Username	Problem	Language	Result	Execution time	Memory
948390		Syrius	Detecting Molecules (IOI16_molecules)	C++14	69 / 100	36 ms	6812 KiB

molecules

#include <bits/stdc++.h>
using namespace std;

// #define int long long
#define pint pair < int , int >
#define ll long long
#define ff first
#define ss second
#define fast ios_base::sync_with_stdio(NULL); cin.tie(NULL)

const int inf = 1e9 + 9;
const int mxn = 2e5 + 2;
const int mod = 1e9 + 7;

vector < int > find_subset(int l , int r , vector < int > w) {

    int n = w.size();
    vector < pint > v;

    for (int i = 0; i < n; i++) {
        v.push_back({w[i] , i});
    }

    sort(v.begin() , v.end());
    vector < int > ans , rep , emp;

    emp.resize(0);

    int id1 = 0 , sum = 0;
    while (id1 < n) {
        sum += v[id1].ff;
        ans.push_back(v[id1].ss);
        if (sum >= l) break;
        id1++;
    }

    if (id1 == n) return emp;
    if (sum <= r) return ans;

    sum -= v[id1].ff;
    ans.pop_back();
    id1--;

    int id2 = n-1;
    while (id1 >= 0) {
        sum += v[id2].ff - v[id1].ff;
        ans.pop_back();
        rep.push_back(v[id2].ss);
        id2--;
        id1--;
        if (sum >= l && sum <= r) {
            for (int i : rep) ans.push_back(i);
            return ans;
        }
    }

    return emp;
}

• Subtask 1: 9 / 9
• Subtask 2: 10 / 10
• Subtask 3: 12 / 12
• Subtask 4: 15 / 15
• Subtask 5: 23 / 23
• Subtask 6: 0 / 31