Submission #301677

#	Time	Username	Problem	Language	Result	Execution time	Memory
301677		chirathnirodha	Detecting Molecules (IOI16_molecules)	C++17	46 / 100	1056 ms	2148 KiB

molecules

#include "molecules.h"
using namespace std;

bool valid[500001];
vector<int> find_subset(int l, int u, vector<int> w) {
    int n=w.size();
    int parent[u+1];
    int arr[1000000];
    int ind=1;
    arr[0]=0;
    valid[0]=true;
    int foundval=-1;
    for(int i=0;i<n;i++){
        int newind=ind;
        for(int j=0;j<ind;j++){
            int newindex=arr[j]+w[i];
            if(newindex>u ||valid[newindex]==true)continue;
            arr[newind]=newindex;
            newind++;
            valid[newindex]=true;
            parent[newindex]=i;
            if(l<=newindex && newindex<=u){
                foundval=newindex;
                break;
            }
        }
        if(foundval!=-1)break;
        ind=newind;
    }
    vector<int> ans;
    if(foundval!=-1){
        while(foundval!=0){
            ans.push_back(parent[foundval]);
            foundval-=w[parent[foundval]];
        }
    }
    return ans;
}

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