Submission #401847

#	Time	Username	Problem	Language	Result	Execution time	Memory
401847		rayna	Detecting Molecules (IOI16_molecules)	C++17	Compilation error	0 ms	0 KiB

molecules

#include <iostream>
#include <fstream>
#include <vector>
#include <set>
#include <list>
#include <string>
#include <queue>
#include <math.h>
#include <algorithm>

using namespace std;

typedef vector<int> vi;
typedef set<int> si;
typedef pair<int, int> pii;

int find_subset(int l, int u, int x[], int n, int result[]) {
    vi a[n];
    for (int i=0; i<n; i++) {
        a[i] = {x[i], i};
    }
    sort(a, a+n);
    
    long long s = 0; int k = 0;
    for (int i=0; i<n; i++) {
        s += a[i][0];
        if (s >= l) {
            if (s <= u) {
                //fill result with 0 to i, inc
                for (int j=0; j<=i; j++) {
                    result[j] = a[j][1];
                }
                return i+1;
            }
            if (i == 0) {
                return 0;
            }
            
            s -= a[i][0];
            k = i-1;
            break;
        }
    }
    
    for (int i=1; i<(n-k); i++) {
        s -= a[i-1][0];
        s += a[i+k][0];
        if (s >= l) {
            for (int j=i; j<=(i+k); j++) {
                result[j-i] = a[j][1];
            }
            return k+1;
        }
    }
    return 0;
}

Compilation message (stderr)

/usr/bin/ld: /tmp/ccAoNM50.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