Submission #213177

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
213177	2020-03-25 06:48:05	islingr	Divide and conquer (IZhO14_divide)	C++14	100 / 100	63 ms	6648 KiB

divide

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#include <algorithm>
#include <iostream>
#include <vector>
#include <map>
using namespace std;
#define rep(i, a, b) for (auto i = (a); i < (b); ++i)
#define per(i, a, b) for (auto i = (b) - 1; i >= (a); --i)
#define trav(x, v) for (auto &x : v)
#define all(x) begin(x), end(x)
#define lb(x...) lower_bound(x)
#define ff first
#define ss second
using ll = int64_t;
template<class T> bool ckmin(T &a, const T& b) { return a > b ? a = b, 1 : 0; }
template<class T> bool ckmax(T &a, const T& b) { return a < b ? a = b, 1 : 0; }
const int N = 1 << 17;
const int inf = 1e9;
int t[N << 1];
int n;
int query(int l, int r) {
  int res = inf;
  for (l += n, r += n; l < r; l >>= 1, r >>= 1) {
    if (l & 1) ckmin(res, t[l++]);
    if (r & 1) ckmin(res, t[--r]);
  }
 
 
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• Subtask 1: 17 / 17
• Subtask 2: 31 / 31
• Subtask 3: 52 / 52