Submission #582299

#	Time	Username	Problem	Language	Result	Execution time	Memory
582299		1ne	벽 (IOI14_wall)	C++14	0 / 100	3040 ms	8104 KiB

wall

#include "wall.h"
#include<bits/stdc++.h>
using namespace std;
struct dataa{
	long long x =0,type = 0,supp = 0,range = 0;
	pair<long long,long long>lazy;
	void add(long long left,long long right,pair<long long,long long> val){
		if (type == 0){
			x = val.second;
			type = val.first;
		}
		else if (type == val.first){ 
			if (val.first == 1){
				if (supp!=type){
					x = max(x,min(val.second,range));
				}
				else
					x = max(x,val.second);
			}
			else{
				if (supp!=type){
					x = min(x,max(val.second,range));
				}
				else
					x = min(x,val.second);
			}
			type = val.first;
		}
		else if (supp == type){
			range = val.second;
		}
		else{
			if (val.first == 1){
				range = max(range,val.second);
			}
			else{
				range = min(range,val.second);
			}
		}
		lazy = val;
		supp|=val.first;
	}
};
long long S,T;
struct Segment_Tree{
	vector<dataa>tree;
	void init(long long n){
		tree.resize(2*n - 1);
	}
	dataa combine(dataa left,dataa right){
		dataa res;
		res.type = (left.type | right.type);
		res.supp = (left.supp | right.supp);
		res.x = left.x + right.x;
		if (left.type == 1){
			res.range = max(left.range,right.range);
		}
		else res.range = min(left.range,right.range);
		return res;
	}
	void push(long long node,long long left,long long right){
		long long mid = (left + right)>>1;
		long long z = node + ((mid - left + 1)<<1);
		if (tree[node].lazy.first!=0){
			tree[node + 1].add(left,mid,tree[node].lazy);
			tree[z].add(mid + 1,right,tree[node].lazy);
			tree[node].lazy.first = 0;
		}
	}
	dataa query(long long node,long long left,long long right,long long qleft,long long qright){
		if (qright<left|| qleft > right)return {0,0,0,0};
		if (qleft<=left && qright>=right){
			return tree[node];
		}
		push(node,left,right);
		long long mid = (left + right)>>1;
		long long z = node + ((mid - left + 1)<<1);
		return combine(query(node + 1,left,mid,qleft,qright),query(z,mid + 1,right,qleft,qright));
	}
	void update(long long node,long long left,long long right,long long uleft,long long uright,pair<long long,long long> v){
		if (left > uright || right < uleft) return;
		if (uleft <= left && right <=uright){
			tree[node].add(left,right,v);
			return;
		}
		push(node,left,right);
		long long mid = (left + right)>>1;
		long long z = node + ((mid - left + 1)<<1);
		if (uleft<=mid){
			update(node + 1,left,mid,uleft,uright,v);
		}
		if (uright > mid){
			update(z,mid + 1,right,uleft,uright,v);
		}
		tree[node] = combine(tree[node + 1],tree[z]);
	}
};

void buildWall(int n, int k, int op[], int left[], int right[], int height[], int finalHeight[]){
  Segment_Tree st;
  st.init(n);
  function<void(int,int,int,int)> solve = [&](int l,int r,int o,int v){
	 if (l > r)return;
	 int temp = st.query(0,0,n-1,l,r).type;
	 if (temp == o || temp == 0){
		 st.update(0,0,n-1,l,r,make_pair(o,v));
		 return;
	 }
	 else if (l == r){
		 	st.update(0,0,n-1,l,r,make_pair(o,v));
	 }
	 else{
		int mid = (l + r)>>1;
		solve(l,mid,o,v);
		solve(mid + 1,r,o,v);
	 }
  };
  for (int i = k - 1;i>=0;--i){
	 solve(left[i],right[i],op[i],height[i]);
  }
  for (int i = 0;i<n;++i){
	solve(i,i,2,0);
  }
  for (int i = 0;i<n;++i){
	finalHeight[i] = st.query(0,0,n-1,i,i).x;
  }
}

• Subtask 1: 0 / 8
• Subtask 2: 0 / 24
• Subtask 3: 0 / 29
• Subtask 4: 0 / 39