Submission #538832

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
538832	2022-03-17 21:09:14	czhang2718	Cake 3 (JOI19_cake3)	C++17	100 / 100	3638 ms	14376 KiB

cake3

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#include "bits/stdc++.h"
using namespace std;
#define rep(i,a,b) for(int i=a; i<=b; i++)
typedef vector<int> vi;
#define pb push_back
#define f first
#define s second
typedef long long ll;
const int N=200000;
int n,M;
int V[N], C[N];
int ind[N];
ll ans=-1e18;
int cnt[4*N];
ll sum[4*N];
void upd(int i, int v, int x=0, int lx=0, int rx=n){
  if(rx-lx==1){
    cnt[x]=(v!=0);
    sum[x]=v;
    return;
  }
  int m=(lx+rx)/2;
  if(i<m) upd(i, v, 2*x+1, lx, m);
  else upd(i, v, 2*x+2, m, rx);
  cnt[x]=cnt[2*x+1]+cnt[2*x+2];
  sum[x]=sum[2*x+1]+sum[2*x+2];
 
 
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• Subtask 1: 5 / 5
• Subtask 2: 19 / 19
• Subtask 3: 76 / 76