제출 #919432

#	제출 시각UTC-0	아이디	문제	언어	결과	실행 시간	메모리
919432	2024-01-31 18:15:04	ilef	원숭이와 사과 나무 (IZhO12_apple)	C++14	100 / 100	296 ms	188976 KiB

apple

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#include <bits/stdc++.h>
#define FOR(i, x, y) for (int i = x; i < y; i++)
using namespace std;
struct Node {
  int sum, lazy, tl, tr, l, r;
  Node() : sum(0), lazy(0), l(-1), r(-1) {}
};
const int MAXN = 123456;
Node segtree[64 * MAXN];
int cnt = 2;
void push_lazy(int node) {
  if (segtree[node].lazy) {
    segtree[node].sum = segtree[node].tr - segtree[node].tl + 1;
    int mid = (segtree[node].tl + segtree[node].tr) / 2;
    if (segtree[node].l == -1) {
      segtree[node].l = cnt++;
      segtree[segtree[node].l].tl = segtree[node].tl;
      segtree[segtree[node].l].tr = mid;
    }
    if (segtree[node].r == -1) {
      segtree[node].r = cnt++;
      segtree[segtree[node].r].tl = mid + 1;
      segtree[segtree[node].r].tr = segtree[node].tr;
    }
    segtree[segtree[node].l].lazy = segtree[segtree[node].r].lazy = 1;
    segtree[node].lazy = 0;
  }
}
void update(int node, int l, int r) {
  push_lazy(node);
 
 
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• Subtask 1: 100 / 100