oj.uz

Submission #70228

# Submission time Handle Problem Language Result Execution time Memory
70228 2018-08-22T13:49:10 Z MladenP Secret (JOI14_secret) C++17
100 / 100
 709 ms 8920 KB 
#include <bits/stdc++.h>
#include "secret.h"
#define mid (l+r)/2
using namespace std;
#define MAXN 1010
int n, i, a[MAXN], d[MAXN][MAXN];
void init(int l, int r) {
	if(l >= r) return;
	for(int i = 0; i < n; i++) d[i][i] = a[i];
	for(int i = mid+1; i <= r; i++) d[mid][i] = Secret(d[mid][i-1], a[i]);
	for(int i = mid-2; i >= l; i--) d[i][mid-1] = Secret(a[i], d[i+1][mid-1]);
	init(l, mid-1); init(mid+1, r);
}
void Init(int N, int A[]) {
	for(i = 1, n = N; i <= n; i++) a[i] = A[i-1];
	init(1, N);
}
int query(int l, int r, int L, int R) {
	if(L <= mid && mid <= R) {
		if(L < mid) return Secret(d[L][mid-1],d[mid][R]);
		else return d[mid][R];
	}
	if(mid < L) return query(mid+1, r, L, R);
	if(R < mid) return query(l, mid-1, L, R);
}
int Query(int L, int R) {
	L++; R++;
	if(L == R) return a[L];
	//if(L+1 == R) return Secret(a[L], a[R]);
	return query(1, n, L, R);
}

Compilation message

secret.cpp: In function 'int query(int, int, int, int)':
secret.cpp:25:1: warning: control reaches end of non-void function [-Wreturn-type]
 }
 ^

Subtask #1
100.0 / 100.0

# Verdict Execution time Memory Grader output
1 Correct 198 ms 4600 KB Output is correct - number of calls to Secret by Init = 3331, maximum number of calls to Secret by Query = 1
2 Correct 188 ms 4720 KB Output is correct - number of calls to Secret by Init = 3340, maximum number of calls to Secret by Query = 1
3 Correct 175 ms 4820 KB Output is correct - number of calls to Secret by Init = 3349, maximum number of calls to Secret by Query = 1
4 Correct 709 ms 8728 KB Output is correct - number of calls to Secret by Init = 7491, maximum number of calls to Secret by Query = 1
5 Correct 651 ms 8792 KB Output is correct - number of calls to Secret by Init = 7499, maximum number of calls to Secret by Query = 1
6 Correct 685 ms 8792 KB Output is correct - number of calls to Secret by Init = 7499, maximum number of calls to Secret by Query = 1
7 Correct 680 ms 8796 KB Output is correct - number of calls to Secret by Init = 7499, maximum number of calls to Secret by Query = 1
8 Correct 684 ms 8920 KB Output is correct - number of calls to Secret by Init = 7499, maximum number of calls to Secret by Query = 1
9 Correct 673 ms 8920 KB Output is correct - number of calls to Secret by Init = 7499, maximum number of calls to Secret by Query = 1
10 Correct 681 ms 8920 KB Output is correct - number of calls to Secret by Init = 7499, maximum number of calls to Secret by Query = 1