Submission #20728

#	Time	Username	Problem	Language	Result	Execution time	Memory
20728		jjwdi0	Detecting Molecules (IOI16_molecules)	C++11	100 / 100	73 ms	5996 KiB

molecules

#include "molecules.h"
#include <bits/stdc++.h>
#define sz(x) ((int)(x).size())
#define all(x) (x).begin(),(x).end()
using namespace std;
typedef long long ll;

vector<int> v, A;
vector<int> ans;
ll L, R;

bool cmp(const int &x, const int &y) {return A[x] < A[y];}

vector<int> find_subset(int l, int u, vector<int> w) {
    A = w;
    for(int i=0; i<sz(w); i++) v.push_back(i);
    sort(all(v), cmp);
    for(int i=0; i<sz(w); i++) {
        L += w[v[i]], R += w[v[sz(w)-i-1]];
        if(R >= l && L <= u) {
            int j = i;
            while(l > L) L = L - w[v[j-i]] + w[v[j+1]], j++;
            for(int k=j-i; k<=j; k++) ans.push_back(v[k]);
            return ans;
        }
    }
    return ans;
}

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