Submission #160103

#	Time	Username	Problem	Language	Result	Execution time	Memory
160103		Nordway	Detecting Molecules (IOI16_molecules)	C++14	46 / 100	28 ms	19448 KiB

molecules

#include <bits/stdc++.h>
#define x first
#define y second
#define pb push_back
#define mp make_pair
#define up_b upper_bound
#define low_b lower_bound
#define sz(x) (int)x.size()
#define all(v) v.begin(),v.end()
#define nl '\n'

#define boost ios_base::sync_with_stdio(0),cin.tie(0),cout.tie(0)

using namespace std;

typedef long long ll;
typedef long double ld;
typedef pair<int,int> pii;
typedef pair<int,ll> pil;
typedef pair<ll,int> pli;
typedef pair<ll,ll> pll;

const ll INF=1e18;
const int inf=1e9;
const ld eps=1e-7;
const ld pi=acos(-1);
const int dx[8]={0,0 ,1,-1,1,1,-1,-1};
const int dy[8]={1,-1,0,0,1,-1,1,-1};
const int mod1=998244353;
const int mod2=1e9+7;
const int N=1e4+1;

pii a[N];

vector<int> find_subset(int l,int u,vector<int>w){
  int n=0;
  for(int i=0;i<sz(w);i++){
    if(w[i]>u)continue;
    n++;
    a[n].x=w[i];
    a[n].y=i;
  }
  bitset<10001>dp[n+1];
  dp[0][0]=1;
  for(int i=1;i<=n;i++){
    dp[i]=(dp[i-1]<<a[i].x);
    dp[i]|=(dp[i-1]);
  }
  int val=-1;
  for(int i=l;i<=u;i++){
    if(dp[n][i]){
      val=i;
      break;
    }
  }
  vector<int>ans;
  if(val>0){
    while(val>0){
      if(val>=a[n].x&&dp[n-1][val-a[n].x]){
        ans.pb(a[n].y);
        val-=a[n].x;
        n--;
      }
      else if(dp[n-1][val]){
        n--;
      }
    }
  }
  return ans;
}

• Subtask 1: 9 / 9
• Subtask 2: 10 / 10
• Subtask 3: 12 / 12
• Subtask 4: 15 / 15
• Subtask 5: 0 / 23
• Subtask 6: 0 / 31