Submission #366746

#	Time	Username	Problem	Language	Result	Execution time	Memory
366746		BartolM	Detecting Molecules (IOI16_molecules)	C++17	100 / 100	58 ms	6240 KiB

molecules

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

using namespace std;

#define X first
#define Y second
#define mp make_pair
#define pb push_back
typedef long long ll;
typedef pair <int, int> pii;
typedef pair <int, pii> pip;
typedef pair <pii, int> ppi;
typedef pair <ll, ll> pll;

const int INF=0x3f3f3f3f;
const int N=10003;
const int MAX=5e5+2;

int n;
vector <pii> v;
vector <int> sol;

vector<int> find_subset(int l, int u, vector<int> w) {
    n=w.size();
    for (int i=0; i<n; ++i) {
        if (w[i]<l) v.pb(mp(w[i], i));
        else if (w[i]<=u) {
            sol.pb(i);
            return sol;
        }
    }
    sort(v.begin(), v.end());
    n=v.size();
    ll mini=0, maxi=0;
    int siz=0;
    for (int i=1; i<=n; ++i) {
        mini+=v[i-1].X;
        maxi+=v[n-i].X;
        if (mini>u) return sol;
        if (mini<=u && maxi>=l) {
            siz=i;
            break;
        }
    }
//    printf("siz: %d\n", siz);
    ll sum=0;
    for (int i=0; i<siz; ++i) sum+=v[i].X;
    for (int i=siz; i<=n; ++i) {
//        printf("i: %d, sum: %lld\n", i, sum);
        if (sum>u) return sol;
        if (sum>=l && sum<=u) {
            for (int j=i-siz; j<i; ++j) sol.pb(v[j].Y);
            return sol;
        }
        if (i==n) {
//            printf("bla\n");
            return sol;
        }
        sum+=v[i].X;
        sum-=v[i-siz].X;
    }

    return sol;
}

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