Submission #588000

#	Time	Username	Problem	Language	Result	Execution time	Memory
588000		FatihSolak	Wall (IOI14_wall)	C++17	8 / 100	3098 ms	18676 KiB

wall

#include "wall.h"
#include <bits/stdc++.h>
#define N 100005
using namespace std;
vector<int> st[N];
vector<int> nd[N];
void buildWall(int n, int k, int op[], int left[], int right[], int height[], int finalHeight[]){
	for(int i = 0;i<n;i++){
		finalHeight[i] = 0;
	}
	if(n * k <= 1e8){
		for(int i = 0;i<k;i++){
			for(int j = left[i];j<=right[i];j++){
				if(op[i] == 1){
					finalHeight[j] = max(finalHeight[j],height[i]);
				}
				else{
					finalHeight[j] = min(finalHeight[j],height[i]);
				}
			}
		}
	}
	else{
		multiset<int> maxs = {0};
		multiset<int> mins = {(int)1e9};
		for(int i = 0;i<k;i++){
			st[left[i]].push_back(i);
			nd[right[i] + 1].push_back(i);
		}
		for(int i = 0;i<n;i++){
			for(auto u:st[i]){
				if(op[u] == 1){
					maxs.insert(height[u]);
				}
				else{
					mins.insert(height[u]);
				}
			}
			for(auto u:nd[i]){
				if(op[u] == 1){
					maxs.erase(maxs.find(height[u]));
				}
				else{
					mins.erase(mins.find(height[u]));
				}
			}
			finalHeight[i] = min(*maxs.rbegin(),*mins.begin());
		}
	}
	return;
}

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