Submission #529779

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
529779	2022-02-23 16:12:37	Alex_tz307	JJOOII 2 (JOI20_ho_t2)	C++17	100 / 100	136 ms	45652 KiB

ho_t2

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#include <bits/stdc++.h>
#define INF 0x3f3f3f3f
using namespace std;
const int kN = 2e5;
const int kLog = 17;
int n, k, nxt[3][1 + kN][1 + kLog], nxt2[3][1 + kN];
string s;
void minSelf(int &x, int y) {
  if (y < x) {
    x = y;
  }
}
void build(int t) {
  nxt[t][n][0] = n;
  nxt2[t][n] = n;
  for (int i = n - 1; i >= 0; --i) {
    if (i + 1 < n && s[i + 1] - '0' == t) {
      nxt[t][i][0] = i + 1;
    } else {
      nxt[t][i][0] = nxt[t][i + 1][0];
    }
    if (s[i] - '0' == t) {
      nxt2[t][i] = i;
    } else {
      nxt2[t][i] = nxt2[t][i + 1];
    }
 
 
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• Subtask 1: 1 / 1
• Subtask 2: 12 / 12
• Subtask 3: 87 / 87