Submission #1264541

#	Time	Username	Problem	Language	Result	Execution time	Memory
1264541		happyboy	Detecting Molecules (IOI16_molecules)	C++20	100 / 100	34 ms	5192 KiB

molecules

#include "molecules.h"
#include <bits/stdc++.h>
using namespace std;
#define f first
#define s second

pair<long long,int> p[200005];

bool o(pair<long long,int> a,pair<long long,int> b){
    return a.f<b.f;
}

std::vector<int> find_subset(int l, int u, std::vector<int> w) {
    int n = w.size();
    for (int i=0;i<n;i++){
        p[i]={w[i],i};
    }
    sort(p,p+n,o);
    int l1=0,r1=0;
    long long sum=p[0].f;
    while (l1<=r1){
        if (sum>=l&&sum<=u){
            vector<int> rtn;
            for (int i=l1;i<=r1;i++) rtn.push_back(p[i].s);
            return rtn;
        }
        else if (sum<l&&r1<n) sum+=p[++r1].f;
        else sum-=p[l1++].f;
    }
    return {};
}

Compilation message (stderr)

molecules.h:1:9: warning: #pragma once in main file
    1 | #pragma once
      |         ^~~~
molecules_c.h:1:9: warning: #pragma once in main file
    1 | #pragma once
      |         ^~~~

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