Submission #706763

#	Time	Username	Problem	Language	Result	Execution time	Memory
706763		Yell0	Detecting Molecules (IOI16_molecules)	C++17	Compilation error	0 ms	0 KiB

molecules

#include <bits/stdc++.h>
 
using namespace std;
typedef pair<int,int> pii;
typedef long long ll;
 
int find_subset(int l,int u,vector<int> w,int n,&vector<int> result) {
  vector<pii> a;
  for(int i=0;i<n;++i) a.push_back({w[i],i});
  sort(a.begin(),a.end());
  int i=0,j=0;
  ll sum=0;
  for(;i<n;++i) {
    sum+=a[i].first;
    if(sum>=l) break;
  }
  if(sum<l) return 0;
  for(;j<=i;++j) {
    sum-=a[j].first;
    if(sum<=u) break;
  }
  if(sum>u) return 0;
  for(int x=0;x<=i-j;++x) result[x]=a[x+j].second;
  return 0;
}

Compilation message (stderr)

molecules.cpp:7:49: error: expected identifier before '&' token
    7 | int find_subset(int l,int u,vector<int> w,int n,&vector<int> result) {
      |                                                 ^
molecules.cpp:7:50: error: expected ',' or '...'
    7 | int find_subset(int l,int u,vector<int> w,int n,&vector<int> result) {
      |                                                  ^~~~~~~~~~~
molecules.cpp: In function 'int find_subset(int, int, std::vector<int>, int, int&)':
molecules.cpp:23:27: error: 'result' was not declared in this scope
   23 |   for(int x=0;x<=i-j;++x) result[x]=a[x+j].second;
      |                           ^~~~~~