Submission #420286

#TimeUsernameProblemLanguageResultExecution timeMemory
420286Sho10Financial Report (JOI21_financial)C++17
100 / 100
743 ms48536 KiB
#include <bits/stdc++.h> //Andrei Alexandru a.k.a Sho #define ll long long #define double long double #pragma GCC optimize("O3") #pragma GCC optimize("Ofast") #define aint(a) (a).begin(), (a).end() #define f first #define s second #define pb push_back #define mp make_pair #define pi pair #define rc(s) return cout<<s,0 #define endl '\n' #define mod 1000000007 #define PI 3.14159265359 #define INF 1000000005 #define LINF 1000000000000000005ll #define CODE_START ios_base::sync_with_stdio(false);cin.tie(0);cout.tie(0); using namespace std; ll n,d,a[300005],tree[3][1200005],lazy[12000005]; map<ll,ll>m; void build(ll node,ll l,ll r){ if(l==r){ tree[1][node]=a[l]; return; } ll mid=(l+r)/2; build(2*node,l,mid); build(2*node+1,mid+1,r); tree[1][node]=min(tree[1][2*node],tree[1][2*node+1]); } ll query1(ll node,ll l,ll r,ll st,ll dr){ if(l>dr){ return LINF; } if(r<st){ return LINF; } if(st<=l&&r<=dr){ return tree[1][node]; } ll mid=(l+r)/2; return min(query1(2*node,l,mid,st,dr),query1(2*node+1,mid+1,r,st,dr)); } void push(ll node,ll l,ll r){ if(lazy[node]==1){ tree[2][node]=0; if(l!=r){ lazy[2*node]=1; lazy[2*node+1]=1; } lazy[node]=0; } } void update2(ll node,ll l,ll r,ll st,ll dr){ push(node,l,r); if(l>dr){ return; } if(r<st){ return; } if(st<=l&&r<=dr){ lazy[node]=1; push(node,l,r); return; } ll mid=(l+r)/2; update2(2*node,l,mid,st,dr); update2(2*node+1,mid+1,r,st,dr); tree[2][node]=max(tree[2][node*2],tree[2][node*2+1]); } ll query2(ll node,ll l,ll r,ll st,ll dr){ push(node,l,r); if(l>dr){ return 0; } if(r<st){ return 0; } if(st<=l&&r<=dr){ return tree[2][node]; } ll mid=(l+r)/2; return max(query2(2*node,l,mid,st,dr),query2(2*node+1,mid+1,r,st,dr)); } void update3(ll node,ll l,ll r,ll pos,ll val){ push(node,l,r); if(l==r){ tree[2][node]=max(tree[2][node],val); return; } ll mid=(l+r)/2; tree[2][node]=max(tree[2][node],val); if(pos<=mid){ update3(2*node,l,mid,pos,val); }else { update3(2*node+1,mid+1,r,pos,val); } } int32_t main(){ CODE_START; cin>>n>>d; vector<ll>v; for(ll i=1;i<=n;i++) { cin>>a[i]; v.pb(a[i]); } sort(v.begin(),v.end()); ll s1=0; for(ll i=0;i<v.size();i++) { if(i==0||v[i]!=v[i-1]){ m[v[i]]=++s1; } } for(ll i=1;i<=n;i++) { a[i]=m[a[i]]; } build(1,1,n); for(ll i=1;i<=n;i++) { if(i>=2){ ll nr=query1(1,1,n,max(1ll,i-d),i-1); if(nr>=2){ update2(1,1,n,1,nr-1); } } ll val=1; if(a[i]>=2){ val+=query2(1,1,n,1,a[i]-1); } update3(1,1,n,a[i],val); } cout<<tree[2][1]<<endl; }

Compilation message (stderr)

Main.cpp: In function 'int32_t main()':
Main.cpp:112:13: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  112 | for(ll i=0;i<v.size();i++)
      |            ~^~~~~~~~~
#Verdict Execution timeMemoryGrader output
Fetching results...
#Verdict Execution timeMemoryGrader output
Fetching results...
#Verdict Execution timeMemoryGrader output
Fetching results...
#Verdict Execution timeMemoryGrader output
Fetching results...
#Verdict Execution timeMemoryGrader output
Fetching results...
#Verdict Execution timeMemoryGrader output
Fetching results...