Submission #122831

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
122831	2019-06-29 10:48:32	turbat	벽 (IOI14_wall)	C++14	100 / 100	803 ms	82100 KiB

wall

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#include <bits/stdc++.h>
#include "wall.h"
using namespace std;
#define N 2000005
int lim[4 * N], seg[4 * N], h[N];
void clear(int nd){
  seg[nd * 2] = max(seg[nd * 2], min(lim[nd * 2], seg[nd]));
  seg[nd * 2 + 1] = max(seg[nd * 2 + 1], min(lim[nd * 2 + 1], seg[nd]));
    lim[nd * 2] = min(lim[nd * 2], lim[nd]);
  lim[nd * 2 + 1] = min(lim[nd * 2 + 1], lim[nd]);
}
void update(int nd, int L, int R, int l, int r, int h, int t){
  // cout << nd << ' '<< L << ' ' << R<< endl;
  if (r < L || R < l) return;
  if (t == 1) h = min(h, lim[nd]);
  if (l <= L && R <= r){
    if (t == 1) seg[nd] = max(seg[nd], h);
    else lim[nd] = min(h, lim[nd]);
    return;
  }
  clear(nd);
  update(nd * 2, L, (L + R) / 2, l, r, h, t);
  update(nd * 2 + 1, (L + R) / 2 + 1, R, l, r, h, t);
}
void end(int nd, int l, int r){
  if (l == r){
 
 
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• Subtask 1: 8 / 8
• Subtask 2: 24 / 24
• Subtask 3: 29 / 29
• Subtask 4: 39 / 39