제출 #597715

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
597715		1ne	벽 (IOI14_wall)	C++14	100 / 100	1303 ms	78664 KiB

wall

#include "wall.h"
#include<bits/stdc++.h>
using namespace std;
struct dataa{
	long long minny = 1e9,maxxy = 0;
	void add(dataa v){
		minny = min(minny,v.minny);
		maxxy = max(maxxy,v.maxxy);
	}
};
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.minny = max(left.minny,right.minny);
		res.maxxy = min(left.maxxy,right.maxxy);
		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);
		tree[node + 1].add(tree[node]);
		tree[z].add(tree[node]);
		tree[node + 1].minny = max(tree[node + 1].minny,tree[node].maxxy);
		tree[z].minny = max(tree[z].minny,tree[node].maxxy);
		tree[node + 1].maxxy = min(tree[node + 1].maxxy,tree[node].minny);
		tree[z].maxxy = min(tree[z].maxxy,tree[node].minny);
	}
	long long query(long long node,long long left,long long right,long long qleft,long long qright){
		if (qright<left|| qleft > right)return 1e9;
		if (qleft<=left && qright>=right){
			return min(tree[node].minny,tree[node].maxxy);
		}
		push(node,left,right);
		long long mid = (left + right)>>1;
		long long z = node + ((mid - left + 1)<<1);
		return min(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,long long h,long long type){
		if (left > uright || right < uleft) return;
		if (uleft <= left && right <=uright){
			if (type == 1){
				tree[node].minny = max(tree[node].minny,h);
				tree[node].maxxy = max(tree[node].maxxy,h);
			}
			else{
				tree[node].minny = min(tree[node].minny,h);
				tree[node].maxxy = min(tree[node].maxxy,h);
			}
			return;
		}
		push(node,left,right);
		tree[node].minny = 1e9;
		tree[node].maxxy = 0;
		long long mid = (left + right)>>1;
		long long z = node + ((mid - left + 1)<<1);
		if (uleft<=mid){
			update(node + 1,left,mid,uleft,uright,h,type);
		}
		if (uright > mid){
			update(z,mid + 1,right,uleft,uright,h,type);
		}
		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);
  for (int i = 0;i<k;++i){
	st.update(0,0,n - 1,left[i],right[i],height[i],op[i]);
  }
  for (int i = 0;i<n;++i){
	finalHeight[i] = st.query(0,0,n-1,i,i);
  }
}

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