Submission #1317097

#	Time	Username	Problem	Language	Result	Execution time	Memory
1317097		marzuq01	Detecting Molecules (IOI16_molecules)	C++20	Compilation error	0 ms	0 KiB

molecules

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

std::vector<int> find_subset(int l, int u, std::vector<int> w) {
    using namespace std;
    int n = w.size();
    vector<int> nope;
    for (int i = 0;i < n;i++) {
        if (l <= w[i] && w[i] <= u) {
            return {i};
        }
    }
    // all element outside [l,r]
    vector<pair<int,int>> v;
    for (int i = 0; i < n;i++) {
        if (w[i] < l) v.push_back({w[i],i});
    }
    if (v.size() <= 1) return nope;
    // v.size() >= 2
    sort(v.begin(),v.end());
    int flag0 = v[0].first + v[v.size() - 1].first;
    if (l <= flag0 && flag0 <= u) {
        return {v[0].second,v[v.size() - 1].second};
    }
    int sum = 0;
    for (auto i : v) sum += i.first;
    if (l <= sum && sum <= u) {
        vector<int> result;
        for (int i = 0; i < v.size();i++) {
            result.push_back(v[i].second);
        }
        return result;
    } else if (sum < l) return nope;
    sum = 0;
    //sort(v.rbegin(),v.rend());
    reverse(v.begin(),v.end());
    vector<int> res;
    for (int i = 0; i < n;i++) {
        int now = sum + v[i].first;
        if (now > u) continue;
        sum += v[i].first;
        res.pb(v[i].second);
        if (l <= sum && sum <= u) return res;
    }
    return {0};


    
}

Compilation message (stderr)

molecules.cpp: In function 'std::vector<int> find_subset(int, int, std::vector<int>)':
molecules.cpp:42:13: error: 'class std::vector<int>' has no member named 'pb'
   42 |         res.pb(v[i].second);
      |             ^~
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
      |         ^~~~