Submission #1114856

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
1114856	2024-11-19 17:13:15	epicci23	Carnival Tickets (IOI20_tickets)	C++17	0 / 100	42 ms	38040 KiB

tickets

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#include "bits/stdc++.h"
#include "tickets.h"
#define ll long long
#define all(v) v.begin() , v.end()
#define sz(a) (ll)a.size()
using namespace std;
const ll N = 3e6 + 5;
const ll LOG = 21;
ll fw[N],fw2[N];
inline void add(ll c,ll u,ll u2){
  for(;c<N;c+=c&-c){
    fw[c]+=u;
    fw2[c]+=u2;
  }
}
inline ll query(ll k,ll res=0,ll p=0){
  for(ll i=LOG-1;i>=0;i--){
    if(fw2[p+(1LL<<i)]<=k){
      p+=(1LL<<i);
      k-=fw2[p+(1LL<<i)];
      res+=fw[p];
    }
  }
  return res;
}
 
 
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