Submission #1319303

#	Time	Username	Problem	Language	Result	Execution time	Memory
1319303		yessimkhan	Detecting Molecules (IOI16_molecules)	C++20	Compilation error	0 ms	0 KiB

molecules

#include "molecules.h"
#include <bits/stdc++.h>
// solved by bekagg
#define int long long
#define ent '\n'
#define pb push_back
#define all(x) x.begin(),x.end()
#define PRaim_bek_abi ios_base::sync_with_stdio(0);cin.tie(0);

using namespace std;

const int N = 2e5+5;
const int MOD = 1e9+7;

int pref[N];

vector<int> find_subset(int l, int u, vector<int> w){

    vector<pair<int , int> > v;
    vector<int>ans;

    for (int i = 0; i < w.size(); i++){
        v.pb({w[i] , i});
    }

    sort(all(v));
    for (int i = 0; i < w.size(); i++) pref[i] = pref[i - 1] + v[i].first();

    for (int i = 0; i < w.size(); i++){
        int l = i , r = w.size() , p = -1;
        while(l <= r){
            int m = (l + r) / 2;

            if (pref[m] - pref[i - 1] >= l){
                p = m;
                r = m - 1;
            }
            else l = m + 1;
        }

        if (p != -1 and pref[p] - pref[i - 1] <= u){
            for (int j = i; j <= p; j++){
                ans.pb(v[j].second());
            }
            break;
        }
    }

    return ans;

}

Compilation message (stderr)

molecules.cpp: In function 'std::vector<long long int> find_subset(long long int, long long int, std::vector<long long int>)':
molecules.cpp:27:74: error: expression cannot be used as a function
   27 |     for (int i = 0; i < w.size(); i++) pref[i] = pref[i - 1] + v[i].first();
      |                                                                ~~~~~~~~~~^~
molecules.cpp:43:35: error: expression cannot be used as a function
   43 |                 ans.pb(v[j].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
      |         ^~~~