Submission #265767

#	Time	Username	Problem	Language	Result	Execution time	Memory
265767		amalla	Detecting Molecules (IOI16_molecules)	C++17	0 / 100	1 ms	256 KiB

molecules

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

using namespace std;

#define ll long long

vector<int> find_subset(int l, int u, vector<int> w) {
    int N = w.size();
    vector<pair<int,int>> A(N);
    for (int i = 0; i<N; ++i) {
        A[i].first = w[i]; A[i].second = i;
    }
    sort(A.begin(), A.end());
    vector<ll> prefix(N+1); prefix[0] = 0;
    for (int i = 1; i<=N; ++i) prefix[i] = prefix[i-1] + A[i-1].first;

    int i = 0, j = 1;
    while (true) {
        if (prefix[j]-prefix[i]<l) {
            ++j;
            if (j>N) break;
        }
        else if (prefix[j]-prefix[i]>u) {
            ++i;
            while (i>=j) {
                ++j;
                if (j>N) break;
            }
        }
        else {
            vector<int> Ans(j-i);
            int k = 0;
            while(i<=j) {
                ++i;
                Ans[k] = A[i].second;
            }
            sort(Ans.begin(), Ans.end());
            return Ans;
        }
    }
    return {0};
}

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