Submission #1313406

#	Time	Username	Problem	Language	Result	Execution time	Memory
1313406		muhammad-ahmad	Secret (JOI14_secret)	C++20	Compilation error	0 ms	0 KiB

secret

#include <bits/stdc++.h>
#include "secret.h"
using namespace std;

const int N = 1e3 + 5;
int n, pref[N][N], a[N];

void precalculate(int l, int r){
	int mid = (l + r) / 2;
	pref[mid][mid] = a[mid];
	pref[mid + 1][mid + 1] = a[mid];
	for (int i = mid - 1; i >= l; i--){
		pref[mid][i] = Secret(pref[mid][i + 1], a[i]);
	}
	for (int i = mid + 2; i <= r; i++){
		pref[mid + 1][i] = Secret(pref[mid + 1][i], a[i]);
	}
	if (l < mid) precalculate(l, m);
	if (r > m + 1) precalculate(m + 1, r);
}

void Init(int nn, int A[]){
	n = nn;
	for (int i = 0; i < n; i++) a[i] = A[i];
	precalculate(0, n - 1);
}

int Query(int L, int R){
	int l = 0, int r = n - 1;
	while (l != r){
		int mid = (l + r) / 2;
		if (L <= mid && mid < R) return Secret(pref[mid][L], pref[mid + 1][R]);
		else if (mid == R) return pref[mid][L];
		else if (mid < L) l = mid + 1;
		else r = m;
	}
	return pref[l][r];
}

Compilation message (stderr)

secret.cpp: In function 'void precalculate(int, int)':
secret.cpp:18:38: error: 'm' was not declared in this scope
   18 |         if (l < mid) precalculate(l, m);
      |                                      ^
secret.cpp:19:17: error: 'm' was not declared in this scope
   19 |         if (r > m + 1) precalculate(m + 1, r);
      |                 ^
secret.cpp: In function 'int Query(int, int)':
secret.cpp:29:20: error: expected unqualified-id before 'int'
   29 |         int l = 0, int r = n - 1;
      |                    ^~~
secret.cpp:30:21: error: 'r' was not declared in this scope
   30 |         while (l != r){
      |                     ^
secret.cpp:35:26: error: 'm' was not declared in this scope
   35 |                 else r = m;
      |                          ^
secret.cpp:37:24: error: 'r' was not declared in this scope
   37 |         return pref[l][r];
      |                        ^