Submission #674770

#	Time	Username	Problem	Language	Result	Execution time	Memory
674770		Valera_Grinenko	Secret (JOI14_secret)	C++17	Compilation error	0 ms	0 KiB

secret

#include "secret.h"
#include <vector>

template<class T, int SZ> offlineDQ {
  int n;
  T stor[SZ][32-__builtin_clz(SZ)], id = 1;
	vector<T> a;
	T comb (T a, T b) { return Secret(a, b); } // associative operation
	void fill(int l, int r, int ind) {
		if (ind < 0) return;
		int m = (l+r)/2;
		T prod = id; ROF(i,l,m) stor[i][ind] = prod = comb(a[i],prod);
		prod = id; FOR(i,m,r) stor[i][ind] = prod = comb(prod,a[i]);
		fill(l,m,ind-1); fill(m,r,ind-1);
	}
	void init(int N) {
		n = 1; while ((1<<n) < sz(a)) ++n;
		a.rsz(1<<n); fill(0,(1<<n),n-1);
	}
	T query(int l, int r) {
		if (l == r) return a[l];
		int t = 31-__builtin_clz(r^l);
		return comb(stor[l][t],stor[r][t]);
	}
}

void Init(int N, int A[]) {
  offlineDQ<int, N> odq;
  odq.a.resize(N);
  for(int i = 0; i < N; i++) odq.a[i] = A[i];
  odq.init();
}

int Query(int L, int R) {
  return odq.query(--L, --R);
}

Compilation message (stderr)

secret.cpp:4:27: error: 'offlineDQ' does not name a type
    4 | template<class T, int SZ> offlineDQ {
      |                           ^~~~~~~~~
secret.cpp: In function 'void Init(int, int*)':
secret.cpp:28:3: error: 'offlineDQ' was not declared in this scope
   28 |   offlineDQ<int, N> odq;
      |   ^~~~~~~~~
secret.cpp:28:13: error: expected primary-expression before 'int'
   28 |   offlineDQ<int, N> odq;
      |             ^~~
secret.cpp:29:3: error: 'odq' was not declared in this scope
   29 |   odq.a.resize(N);
      |   ^~~
secret.cpp: In function 'int Query(int, int)':
secret.cpp:35:10: error: 'odq' was not declared in this scope
   35 |   return odq.query(--L, --R);
      |          ^~~