Submission #156552

#	Time	Username	Problem	Language	Result	Execution time	Memory
156552		InfiniteJest	Detecting Molecules (IOI16_molecules)	C++14	Compilation error	0 ms	0 KiB

molecules

#include <iostream>
#include <fstream>
#include <vector>
#include <queue>
#include <algorithm>
#include <math.h>
#define pb push_back
#define mp make_pair
#define fi first
#define se second
using namespace std;

ifstream in("input.txt");
ofstream out("output.txt");

typedef long long ll;

int n;
int ls,rs;
int v[100001];
int res[100001];
pair<int,int> p[100001];

int find_subset(int l, int u, int[] w, int n, int[] result){

  int s=-1;
  int d=n-1;
  int sum=0;
  bool flag=0;
  for(int i=0;i<n;i++){
    p[i].fi=w[i];
    p[i].se=i;
  }
  sort(p,p+n);
  while(s<n){
    if(sum>u)break;
    while((sum<l||sum>u)&&d>s){
      sum+=p[d].fi;
      d--;
    }
    d++;
    if(sum>=l&&sum<=u){
      flag=1;
      break;
    }
    sum-=p[d].fi;
    s++;
    sum+=p[s].fi;

  }
  if(flag){
    for(int i=0;i<=s;i++)res[i]=p[i].se;
    for(int i=n-1;i>=d;i--)res[s+(n-1-i)+1]=p[i].se;
    return s+1+n-d;
  }
  return 0;

}

Compilation message (stderr)

molecules.cpp:24:37: error: expected ',' or '...' before 'w'
 int find_subset(int l, int u, int[] w, int n, int[] result){
                                     ^
molecules.cpp: In function 'int find_subset(int, int, int*)':
molecules.cpp:31:13: error: 'w' was not declared in this scope
     p[i].fi=w[i];
             ^