Submission #789484

#TimeUsernameProblemLanguageResultExecution timeMemory
789484winter0101Food Court (JOI21_foodcourt)C++14
100 / 100
502 ms68988 KiB
#include<bits/stdc++.h> using namespace std; #define all(fl) fl.begin(),fl.end() #define pb push_back #define fi first #define se second #define for1(i,j,k) for(int i=j;i<=k;i++) #define for2(i,j,k) for(int i=j;i>=k;i--) #define for3(i,j,k,l) for(int i=j;i<=k;i+=l) #define lb lower_bound #define ub upper_bound #define sz(a) (int)a.size() #define pii pair<int,int> #define pli pair<long long,int> #define gcd __gcd #define lcm(x,y) x*y/__gcd(x,y) #define pil pair<int,long long> const int maxn=2e5+5e4+9; struct node{ long long mx,lazy; bool mxup; node(){ mx=0; mxup=0; lazy=0; } }st[maxn*4]; void push(int id){ if (st[id].mxup){ if (!st[id*2].mxup){ st[id*2].mxup=1; st[id*2].mx=st[id].mx; st[id*2].lazy+=st[id].lazy; } else { st[id*2].mx=max(st[id*2].mx+st[id].lazy,st[id].mx); st[id*2].lazy+=st[id].lazy; } if (!st[id*2+1].mxup){ st[id*2+1].mxup=1; st[id*2+1].mx=st[id].mx; st[id*2+1].lazy+=st[id].lazy; } else { st[id*2+1].mx=max(st[id*2+1].mx+st[id].lazy,st[id].mx); st[id*2+1].lazy+=st[id].lazy; } st[id].mx=0; st[id].lazy=0; st[id].mxup=0; } else { if (!st[id*2].mxup){ st[id*2].lazy+=st[id].lazy; } else { st[id*2].mx+=st[id].lazy; st[id*2].lazy+=st[id].lazy; } if (!st[id*2+1].mxup){ st[id*2+1].lazy+=st[id].lazy; } else { st[id*2+1].mx+=st[id].lazy; st[id*2+1].lazy+=st[id].lazy; } st[id].lazy=0; } } void update(int id,int l,int r,int u,int v,long long val){ if (l>v||r<u||u>v)return; if (u<=l&&r<=v){ if (!st[id].mxup){ st[id].lazy+=val; } else { st[id].mx+=val; st[id].lazy+=val; } return; } int mid=(l+r)/2; push(id); update(id*2,l,mid,u,v,val); update(id*2+1,mid+1,r,u,v,val); } void update2(int id,int l,int r,int u,int v,long long val){ if (l>v||r<u||u>v)return; if (u<=l&&r<=v){ if (!st[id].mxup){ st[id].mxup=1; st[id].mx=val; } else st[id].mx=max(st[id].mx,val); return; } int mid=(l+r)/2; push(id); update2(id*2,l,mid,u,v,val); update2(id*2+1,mid+1,r,u,v,val); } long long get(int id,int l,int r,int u){ while (true){ if (l==r){ return st[id].mx; } push(id); int mid=(l+r)/2; if (mid>=u){ r=mid; id=id*2; } else { l=mid+1; id=id*2+1; } } } long long bit[maxn]; long long shop[maxn]; long long tk[maxn]; int n,m,q; void add(int pos,long long val){ for(;pos<=q;pos+=(pos-(pos&(pos-1))))bit[pos]+=val; } long long get(int pos){ long long sum=0; for(;pos>=1;pos-=(pos-(pos&(pos-1))))sum+=bit[pos]; return sum; } long long get(int l,int r){ return get(r)-get(l-1); } struct range{ int l,r,c; long long k; }b[maxn]; vector<int>ad[maxn],dl[maxn]; vector<int>qr[maxn]; signed main(){ ios_base::sync_with_stdio(0); cin.tie(0); //freopen("temp.INP","r",stdin); //freopen("temp.OUT","w",stdout); cin>>n>>m>>q; for1(i,1,n)update2(1,1,n,i,i,0); for1(i,1,q){ int t; cin>>t; shop[i]=-1; if (t==3){ int x; long long y; cin>>x>>y; qr[x].pb(i); tk[i]=y; shop[i]=get(1,1,n,x); } if (t==2){ int l,r; long long k; cin>>l>>r>>k; update(1,1,n,l,r,-k); update2(1,1,n,l,r,0); } if (t==1){ int l,r,c; long long k; cin>>l>>r>>c>>k; ad[l].pb(i); dl[r].pb(i); b[i]={l,r,c,k}; update(1,1,n,l,r,k); } } for1(i,1,n){ for (auto v:ad[i]){ add(v,b[v].k); } for (auto v:qr[i]){ //long long haveicecream=tk[v]; if (shop[v]<tk[v]){ shop[v]=0; continue; } long long diff=shop[v]-tk[v]+1; int l=1,r=v-1,asn=v; while (l<=r){ int mid=(l+r)/2; if (get(mid,v)>=diff){ asn=mid; l=mid+1; } else r=mid-1; } shop[v]=b[asn].c; } for (auto v:dl[i]){ add(v,-b[v].k); } } for1(i,1,q){ if (tk[i]){ cout<<shop[i]<<'\n'; } } }
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