oj.uz

Submission #954529

# Submission time Handle Problem Language Result Execution time Memory
954529 2024-03-28T06:10:44 Z IBory Secret (JOI14_secret) C++17
0 / 100
 388 ms 5332 KB 
#include "secret.h"
#include <bits/stdc++.h>
#define pii pair<int, int>
using namespace std;

const int MAX = 1004;
map<pii, int> D;
int N, S[MAX];

void DnC1(int L, int R) {
	if (L >= R) return;
	int mid = (L + R) >> 1;

	int pv = -1;
	for (int i = mid - 1; i >= L; --i) {
		int n = -1;
		if (pv == -1) n = Secret(S[i], S[mid]);
		else n = Secret(S[i], pv);
		pv = D[{i, mid}] = n;
	}
	pv = -1;
	for (int i = mid + 2; i <= R; ++i) {
		int n = -1;
		if (pv == -1) n = Secret(S[mid], S[i]);
		else n = Secret(pv, S[i]);
		pv = D[{mid, i}] = n;
	}

	DnC1(L, mid);
	DnC1(mid + 1, R);
}

void Init(int _N, int A[]) {
	N = _N;
	for (int i = 0; i < N; ++i) S[i] = A[i];
	DnC1(0, N - 1);
	for (int i = 0; i < N; ++i) D[{i, i}] = A[i];
}

int DnC2(int L, int R, int s, int e) {
	if (L >= R) return -1;
	int mid = (L + R) >> 1;

	if (s <= mid && mid < e) {
		int a = D[{s, mid}], b = D[{mid + 1, e}];
		return Secret(a, b);
	}

	if (e <= mid) return DnC2(L, mid, s, e);
	else return DnC2(mid + 1, R, s, e);
}


int Query(int L, int R) {
	return DnC2(0, N - 1, L, R);
}

Subtask #1
0.0 / 100.0

# Verdict Execution time Memory Grader output
1 Incorrect 112 ms 3044 KB Wrong Answer: Query(222, 254) - expected : 34031541, actual : 805576266.
2 Incorrect 101 ms 2896 KB Wrong Answer: Query(60, 375) - expected : 669221184, actual : 571476064.
3 Incorrect 100 ms 2900 KB Wrong Answer: Query(211, 401) - expected : 674373968, actual : 136730926.
4 Incorrect 371 ms 5332 KB Wrong Answer: Query(90, 497) - expected : 397934825, actual : 870547617.
5 Incorrect 370 ms 4948 KB Wrong Answer: Query(587, 915) - expected : 752404486, actual : 976357712.
6 Incorrect 388 ms 4912 KB Wrong Answer: Query(915, 915) - expected : 282904741, actual : -1.
7 Incorrect 366 ms 4944 KB Wrong Answer: Query(84, 976) - expected : 742463504, actual : 781793354.
8 Incorrect 376 ms 4792 KB Wrong Answer: Query(58, 987) - expected : 20022464, actual : 499418120.
9 Incorrect 368 ms 4808 KB Wrong Answer: Query(33, 967) - expected : 676869696, actual : 277351906.
10 Incorrect 379 ms 4948 KB Wrong Answer: Query(116, 961) - expected : 68487362, actual : 274498057.