Submission #885116

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
885116	2023-12-09 03:01:08	fanwen	Sequence (APIO23_sequence)	C++17	50 / 100	143 ms	43344 KiB

sequence

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#include <bits/stdc++.h>
#define fi first 
#define se second 
using namespace std;
const int MAX = 1e5 + 5;
int A[MAX];
vector <int> pos[MAX], max_pref[MAX], min_pref[MAX], max_suff[MAX], min_suff[MAX];
struct node {
  int ma, mi, lazy;
  node(int ma = 0, int mi = 0) : ma(ma), mi(mi), lazy(0) {}
} it[MAX << 2];
node merge(const node &a, const node &b) {
  return node(max(a.ma, b.ma), min(a.mi, b.mi));
}
void build(int idx, int l, int r) {
  if(l == r) it[idx] = node(l, r);
  else {
    int mid = l + r >> 1;
    build(idx << 1, l, mid);
    build(idx << 1 | 1, mid + 1, r);
    it[idx] = merge(it[idx << 1], it[idx << 1 | 1]);
  }
}
 
 
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Compilation message (stderr)

sequence.cpp: In function 'void build(int, int, int)':
sequence.cpp:25:17: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   25 |     int mid = l + r >> 1;
      |               ~~^~~
sequence.cpp: In function 'void update(int, int, int, int, int, int)':
sequence.cpp:54:15: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   54 |   int mid = l + r >> 1;
      |             ~~^~~
sequence.cpp: In function 'node get(int, int, int, int, int)':
sequence.cpp:68:15: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   68 |   int mid = l + r >> 1;
      |             ~~^~~
sequence.cpp: In function 'int sequence(int, std::vector<int>)':
sequence.cpp:105:17: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
  105 |     int mid = l + r >> 1;
      |               ~~^~~

• Subtask 1: 11 / 11
• Subtask 2: 17 / 17
• Subtask 3: 0 / 7
• Subtask 4: 0 / 12
• Subtask 5: 0 / 13
• Subtask 6: 22 / 22
• Subtask 7: 0 / 18