oj.uz

Submission #755257

# Submission time Handle Problem Language Result Execution time Memory
755257 2023-06-09T16:17:11 Z penguin133 Secret (JOI14_secret) C++17
0 / 100
 465 ms 4376 KB 
#include <bits/stdc++.h>
using namespace std;
 
#include "secret.h"
//#define int long long
#define pi pair<int, int>
#define pii pair<int, pi>
#define fi first
#define se second
#ifdef _WIN32
#define getchar_unlocked _getchar_nolock
#endif
mt19937_64 rng(chrono::steady_clock::now().time_since_epoch().count());
 
int a[1030], n, sp[12][1030], cnt;
void Init(int N, int A[]) {
	n = N;
  for(int i=0;i<n;i++)a[i] = A[i];
  while((1 << cnt) < n)cnt++;
  n = (1 << cnt);
  for(int i = 0; i < cnt; i++){
	  int blk = (1 << i);
	  int sz = (n + blk - 1) / blk;
	  for(int j = 1; j <= blk; j++){
		  int lb = (j - 1) * sz, ub = min(N - 1, j * sz - 1);
		  if(lb >= N)break;
		  int mid = (lb + ub) >> 1;
		  for(int k = mid; k >= lb; k--){
			  if(k == mid)sp[i][mid] = a[mid];
			  else sp[i][k] = Secret(a[k], sp[i][k + 1]);
		  }
		  for(int k = mid + 1; k <= ub; k++){
			  if(k == mid + 1)sp[i][k] = a[k];
			  else sp[i][k] = Secret(sp[i][k-1], a[k]);
		  }
	  }
  }
}
 
int Query(int L, int R) {
  if(L == R)return a[L];
  int brr = L ^ R;
  brr = cnt - (31 - __builtin_clz(brr)) - 1;
  return Secret(sp[brr][L], sp[brr][R]);
}

Subtask #1
0.0 / 100.0

# Verdict Execution time Memory Grader output
1 Correct 120 ms 2380 KB Output is correct - number of calls to Secret by Init = 3578, maximum number of calls to Secret by Query = 1
2 Correct 123 ms 2404 KB Output is correct - number of calls to Secret by Init = 3586, maximum number of calls to Secret by Query = 1
3 Incorrect 115 ms 2412 KB Wrong Answer: Query(322, 512) - expected : 354879498, actual : 874516502.
4 Incorrect 444 ms 4376 KB Wrong Answer: Query(511, 746) - expected : 648741079, actual : 1049315.
5 Incorrect 428 ms 4324 KB Wrong Answer: Query(761, 790) - expected : 112945480, actual : 226732038.
6 Incorrect 456 ms 4352 KB Wrong Answer: Query(895, 903) - expected : 154051883, actual : 12166913.
7 Correct 459 ms 4224 KB Output is correct - number of calls to Secret by Init = 7998, maximum number of calls to Secret by Query = 1
8 Correct 456 ms 4364 KB Output is correct - number of calls to Secret by Init = 7998, maximum number of calls to Secret by Query = 1
9 Correct 442 ms 4292 KB Output is correct - number of calls to Secret by Init = 7998, maximum number of calls to Secret by Query = 1
10 Correct 465 ms 4296 KB Output is correct - number of calls to Secret by Init = 7998, maximum number of calls to Secret by Query = 1