Submission #927224

#	Time	Username	Problem	Language	Result	Execution time	Memory
927224		Nurislam	Wall (IOI14_wall)	C++14	100 / 100	818 ms	71508 KiB

wall

//~ #include "wall.h"
#include <bits/stdc++.h>
//~ #include "grader.cpp"

using namespace std;

#define pb push_back
#define ff first
#define ss second
#define ll long long
typedef vector<ll> vi;
typedef pair<ll,ll> pii;
typedef vector<pii> vii;
const int N = 2e6+5;

int add[N*4],rem[N*4];
void build(int v,int tl,int tr){
   if(tl==tr){
      add[v]=0;
      rem[v]=1e9;
   }
   else{
      int tm=(tl+tr)/2;
      build(v*2,tl,tm);
      build(v*2+1,tm+1,tr);
   }
}
void push(int v){
   add[v*2]=max(add[v*2],add[v]);
   rem[v*2]=max(rem[v*2],add[v]);
   add[v*2]=min(add[v*2],rem[v]);
   rem[v*2]=min(rem[v*2],rem[v]);
   add[v*2+1]=max(add[v*2+1],add[v]);
   rem[v*2+1]=max(rem[v*2+1],add[v]);
   add[v*2+1]=min(add[v*2+1],rem[v]);
   rem[v*2+1]=min(rem[v*2+1],rem[v]);
   add[v]=0;rem[v]=1e9;
}
void update(int v,int tl,int tr,int l,int r,int x,int type){
   if(r<tl or l>tr)return;
   if(l<=tl && tr<=r){
      if(type==1){
         add[v]=max(add[v],x);
         rem[v]=max(rem[v],x);
      }
      else{
         add[v]=min(add[v],x);
         rem[v]=min(rem[v],x);
      }
      return;
   }
   push(v);
   int tm=(tl+tr)/2;
   update(v*2,tl,tm,l,r,x,type);
   update(v*2+1,tm+1,tr,l,r,x,type);
}
int get(int v,int tl,int tr,int pos){
   if(tl==tr)return add[v];
   push(v);
   int tm=(tl+tr)/2;
   if(pos<=tm)return get(v*2,tl,tm,pos);
   else return get(v*2+1,tm+1,tr,pos);
}
void buildWall(int n, int k, int op[], int left[], int right[], int height[], int finalHeight[]){
   build(1,1,n);
   for(int i=0;i<k;i++){
      update(1,1,n,left[i]+1,right[i]+1,height[i],op[i]);
   }
   for(int i=0;i<n;i++){
      finalHeight[i]=get(1,1,n,i+1);
   }
  return;
}

• Subtask 1: 8 / 8
• Subtask 2: 24 / 24
• Subtask 3: 29 / 29
• Subtask 4: 39 / 39