제출 #573827

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
573827		MohamedFaresNebili	Detecting Molecules (IOI16_molecules)	C++14	컴파일 에러	0 ms	0 KiB

molecules

#include <bits/stdc++.h>
#include <ext/pb_ds/assoc_container.hpp>

        using namespace std;
        using namespace __gnu_pbds;

        using ll = long long;
        using ii = pair<int, int>;
        using vi = vector<int>;

        #define pb push_back
        #define pp pop_back
        #define ff first
        #define ss second
        #define lb lower_bound

        typedef tree<int, null_type, less<int>, rb_tree_tag,
            tree_order_statistics_node_update> indexed_set;

        int find_subset(int l, int u, int w[], int n, int result[]) {
            vector<ii> arr;
            for(int l = 0; l < n; l++)
                arr.pb({w[l], l});
            sort(arr.begin(), arr.end());
            ll curr = 0, k = 0;
            for(int i = 0; i < n; i++) {
                if(curr + arr[i].ff <= u) {
                    curr += arr[i].ff;
                    result[k++] = arr[i].ss;
                }
                else break;
            }
            if(curr >= l && curr <= u) return k;
            for(int i = 0; i < k && n - i - 1 >= k; i++) {
                if(curr + arr[n - i - 1].ff - arr[i].ff <= u) {
                    curr += arr[n - i - 1].ff - arr[i].ff;
                    result[i] = arr[n - i - 1].ss;
                }
                else break;
            }
            return ((curr >= l && curr <= u) ? k : 0);
        }

컴파일 시 표준 에러 (stderr) 메시지

/usr/bin/ld: /tmp/ccdYakZE.o: in function `main':
grader.cpp:(.text.startup+0x18d): undefined reference to `find_subset(int, int, std::vector<int, std::allocator<int> >)'
collect2: error: ld returned 1 exit status