Submission #838559

# Submission time Handle Problem Language Result Execution time Memory
838559 2023-08-27T11:37:12 Z tch1cherin Gap (APIO16_gap) C++17
30 / 100
68 ms 3076 KB
#include "gap.h"
#include <bits/stdc++.h>
using namespace std;

long long findGap(int T, int N) {
	if (T == 1) {
		long long Min = -1, Max = 1e18l + 1;
		vector<long long> front, back;
		for (int i = 0; i < (N + 1) / 2; i++) {
			MinMax(Min + 1, Max - 1, &Min, &Max);
			if (Min != Max) {
				front.push_back(Min);
			}
			back.push_back(Max);
		}
		reverse(back.begin(), back.end());
		vector<long long> A;
		for (auto v : front) {
			A.push_back(v);
		}
		for (auto v : back) {
			A.push_back(v);
		}
		long long gap = 0;
		for (int i = 0; i < N - 1; i++) {
			gap = max(gap, A[i + 1] - A[i]);
		}
		return gap;
	} else {
		long long Min, Max;
		MinMax(0, 1e18, &Min, &Max);
		priority_queue<tuple<long double, long long, long long>> Q;
		Q.push({1, Min, Max});
		long long maxConfirmed = (Max - Min + N - 2) / (N - 1);
		uniform_real_distribution<long double> dist(0, 1);
		mt19937 rng(chrono::steady_clock().now().time_since_epoch().count());
		while (!Q.empty()) {
			auto [p, l, r] = Q.top();
			Q.pop();
			if (r - l <= maxConfirmed) {
				continue;
			}
			long long mid = l + (r - l) / 2;
			long long Minl = -1, Maxl = -1, Minr = -1, Maxr = -1;
			if (l <= mid && mid - l > maxConfirmed) {
				MinMax(l, mid, &Minl, &Maxl);
				if (Minl != -1) {
					Q.push({(Maxl - Minl) * dist(rng), Minl, Maxl});
				}
			}
			if (mid + 1 <= r && r - mid - 1 > maxConfirmed) {
				MinMax(mid + 1, r, &Minr, &Maxr);
				if (Minr != -1) { 
					Q.push({(Maxl - Minl) * dist(rng), Minr, Maxr});
				}
			}
			if (Maxl != -1 && Minr != -1) {
				maxConfirmed = max(maxConfirmed, Minr - Maxl);
			}
		}
		return maxConfirmed;
	}
}
# Verdict Execution time Memory Grader output
1 Correct 1 ms 208 KB Output is correct
2 Correct 0 ms 208 KB Output is correct
3 Correct 0 ms 208 KB Output is correct
4 Correct 0 ms 208 KB Output is correct
5 Correct 0 ms 208 KB Output is correct
6 Correct 1 ms 208 KB Output is correct
7 Correct 1 ms 208 KB Output is correct
8 Correct 0 ms 208 KB Output is correct
9 Correct 0 ms 208 KB Output is correct
10 Correct 0 ms 336 KB Output is correct
11 Correct 1 ms 336 KB Output is correct
12 Correct 1 ms 336 KB Output is correct
13 Correct 1 ms 336 KB Output is correct
14 Correct 1 ms 336 KB Output is correct
15 Correct 1 ms 336 KB Output is correct
16 Correct 9 ms 1168 KB Output is correct
17 Correct 9 ms 1216 KB Output is correct
18 Correct 7 ms 1256 KB Output is correct
19 Correct 9 ms 1104 KB Output is correct
20 Correct 6 ms 1104 KB Output is correct
21 Correct 35 ms 3016 KB Output is correct
22 Correct 29 ms 3016 KB Output is correct
23 Correct 29 ms 3056 KB Output is correct
24 Correct 31 ms 3052 KB Output is correct
25 Correct 26 ms 3044 KB Output is correct
26 Correct 29 ms 3060 KB Output is correct
27 Correct 33 ms 3012 KB Output is correct
28 Correct 35 ms 2928 KB Output is correct
29 Correct 38 ms 3076 KB Output is correct
30 Correct 23 ms 3060 KB Output is correct
31 Correct 1 ms 208 KB Output is correct
32 Correct 1 ms 208 KB Output is correct
# Verdict Execution time Memory Grader output
1 Correct 1 ms 208 KB Output is correct
2 Correct 1 ms 208 KB Output is correct
3 Partially correct 0 ms 208 KB Partially correct
4 Correct 1 ms 208 KB Output is correct
5 Partially correct 0 ms 208 KB Partially correct
6 Partially correct 0 ms 208 KB Partially correct
7 Partially correct 0 ms 208 KB Partially correct
8 Partially correct 0 ms 208 KB Partially correct
9 Partially correct 0 ms 208 KB Partially correct
10 Incorrect 1 ms 208 KB Output isn't correct
11 Incorrect 1 ms 336 KB Output isn't correct
12 Partially correct 1 ms 336 KB Partially correct
13 Partially correct 1 ms 336 KB Partially correct
14 Partially correct 1 ms 428 KB Partially correct
15 Partially correct 1 ms 336 KB Partially correct
16 Partially correct 6 ms 592 KB Partially correct
17 Partially correct 6 ms 592 KB Partially correct
18 Partially correct 6 ms 464 KB Partially correct
19 Partially correct 5 ms 464 KB Partially correct
20 Incorrect 2 ms 476 KB Output isn't correct
21 Partially correct 20 ms 1232 KB Partially correct
22 Partially correct 32 ms 1444 KB Partially correct
23 Partially correct 19 ms 1232 KB Partially correct
24 Incorrect 21 ms 1232 KB Output isn't correct
25 Partially correct 68 ms 2180 KB Partially correct
26 Incorrect 24 ms 1376 KB Output isn't correct
27 Partially correct 21 ms 1280 KB Partially correct
28 Partially correct 27 ms 1224 KB Partially correct
29 Incorrect 23 ms 1328 KB Output isn't correct
30 Incorrect 11 ms 1024 KB Output isn't correct
31 Correct 0 ms 208 KB Output is correct
32 Correct 0 ms 208 KB Output is correct