Submission #931412

#	Time	Username	Problem	Language	Result	Execution time	Memory
931412		mariaclara	Detecting Molecules (IOI16_molecules)	C++17	100 / 100	52 ms	7252 KiB

molecules

#include "molecules.h"
#include<bits/stdc++.h>

using namespace std;

typedef long long ll;
typedef pair<int,int> pii;
const int MAXN = 1e5+5;
#define all(x) x.begin(), x.end()
#define mk make_pair
#define pb push_back
#define f first
#define s second

vector<int> find_subset(int l, int u, vector<int> w) {
    int n = w.size(), t = n;
    ll sum = 0;
    vector<ll> prefix(n+1, 0);
    vector<pii> v(n);

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

    sort(all(w));
    sort(all(v));

    for(int i = 1; i <= n; i++)
        prefix[i] = w[i-1] + prefix[i-1];

    for(int i = 0; i < n; i++) {
        sum += w[i];
        if(sum > u) { t = i; break; }
    }

    for(int i = 0; i <= n-t; i++) {
        if(u >= prefix[i+t] - prefix[i] and prefix[i+t] - prefix[i] >= l) {
            vector<int> resp;
            for(int j = i; j < i+t; j++) resp.pb(v[j].s);
            return resp;
        }
    }

    return vector<int>(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