Submission #676997

#	Time	Username	Problem	Language	Result	Execution time	Memory
676997		Dulguun	Detecting Molecules (IOI16_molecules)	C++17	Compilation error	0 ms	0 KiB

molecules

#include<bits/stdc++.h>
using namespace std;

int find_subset(int l, int u, int w[], int n, int result[]){
	vector<pair<int,int>> v(n);
	for(int i=0; i<n; i++) v[i]={w[i], i};
	sort(v.begin(), v.end());
	
	for(int k=n; k>0; k++){
		int s=0;
		for(int i=0; i<k; i++) s+=v[i].first;
		if(s>=l && s<=u) {
			for(int j=0; j<k; j++) result[j]=v[j].second;
			return k;
		}
		for(int i=k; i<n; i++){
			s=s+v[i].first-v[i-k].first;
			if(s>=l && s<=u) {
				for(int j=i-k; j<i; j++) result[j]=v[j].second;
				return k;
			}
		}
	}
	
}

Compilation message (stderr)

molecules.cpp: In function 'int find_subset(int, int, int*, int, int*)':
molecules.cpp:5:27: warning: control reaches end of non-void function [-Wreturn-type]
    5 |  vector<pair<int,int>> v(n);
      |                           ^
/usr/bin/ld: /tmp/cc1hn800.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