제출 #306873

#	제출 시각UTC-0	아이디	문제	언어	결과	실행 시간	메모리
306873	2020-09-26 12:34:08	juggernaut	벽 (IOI14_wall)	C++14	100 / 100	813 ms	69624 KiB

wall

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#include"wall.h"
#include<bits/stdc++.h>
using namespace std;
int flag[8000000][2];
void upd(int v,int mn,int mx){
    flag[v][0]=min(max(flag[v][0],mn),mx);
  flag[v][1]=min(max(flag[v][1],mn),mx);
}
void push(int v,int l,int r){
    if(l!=r){
        upd(v<<1,flag[v][0],flag[v][1]);
        upd((v<<1)+1,flag[v][0],flag[v][1]);
    }
    flag[v][0]=0;
    flag[v][1]=2e9;
}
void update(int v,int l,int r,int ql,int qr,int mn,int mx){
    if(ql<=l&&r<=qr){
        upd(v,mn,mx);
        return;
    }
    if(r<ql||qr<l)return;
    push(v,l,r);
    int mid=(l+r)>>1;
    update(v<<1,l,mid,ql,qr,mn,mx);
    update((v<<1)+1,mid+1,r,ql,qr,mn,mx);
}
void build(int v,int l,int r,int* res){
    if(l==r){
        res[l]=flag[v][0];
 
 
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• Subtask 1: 8 / 8
• Subtask 2: 24 / 24
• Subtask 3: 29 / 29
• Subtask 4: 39 / 39