Submission #40792

# Submission time Handle Problem Language Result Execution time Memory
40792 2018-02-08T07:25:48 Z ssnsarang2023 Gap (APIO16_gap) C++14
30 / 100
59 ms 2140 KB
#include <bits/stdc++.h>
#include "gap.h"

using namespace std;

typedef long long ll;

//#define DEBUG

#ifdef DEBUG

int n = 2;
ll a[2] = {78103569500113815, 605712887753065418 };

void MinMax(ll x, ll y, ll *mn, ll *mx) {
	for (int i = 0; i < n; ++i) if (a[i] >= x)
	{ (*mn) = a[i]; break; }
	for (int i = n - 1; i >= 0; --i) if (a[i] <= y)
	{ (*mx) = a[i]; break; }
	if ((*mx) < (*mn)) (*mx) = (*mn) = -1;
}
#endif

ll findGap(int _t, int _n) {
	ll n = _n;
	ll mn = 1, mx = (ll)1e18;
	MinMax(mn, mx, &mn, &mx);
	if (_t == 2) {
		ll d = ceil((double)(mx - mn) / (double)(n - 1ll)), pre = mn, gap = 0;
		for (ll i = mn; i < mx; i += d) {
			MinMax(i, i + d - 1, &mn, &mx);
			if (mn == -1) continue;
			gap = max(gap, mn - pre);
			pre = mx;
		}
		gap = max(gap, mx - pre);
		return gap;
	} else {
		vector<ll> a;
		a.resize(n);
		a[0] = mn, a[n - 1] = mx;
		int lo = 0, hi = n - 1;
		while (hi - lo > 1) {
			MinMax(a[lo] + 1ll, a[hi] - 1ll, &mn, &mx);
			++lo, --hi;
			a[lo] = mn, a[hi] = mx;
		}
		ll gap = 0;
		for (int i = 0; i < n - 1; ++i) gap = max(gap, a[i + 1] - a[i]);
		return gap;
	}
	return 0ll;
}

#ifdef DEBUG
int main() {
	printf("%d", findGap(1, 5));
	return 0;
}
#endif
# Verdict Execution time Memory Grader output
1 Correct 1 ms 248 KB Output is correct
2 Correct 2 ms 352 KB Output is correct
3 Correct 1 ms 404 KB Output is correct
4 Correct 1 ms 404 KB Output is correct
5 Correct 2 ms 404 KB Output is correct
6 Correct 1 ms 460 KB Output is correct
7 Correct 2 ms 532 KB Output is correct
8 Correct 1 ms 548 KB Output is correct
9 Correct 2 ms 548 KB Output is correct
10 Correct 1 ms 548 KB Output is correct
11 Correct 2 ms 548 KB Output is correct
12 Correct 2 ms 624 KB Output is correct
13 Correct 2 ms 624 KB Output is correct
14 Correct 2 ms 624 KB Output is correct
15 Correct 2 ms 624 KB Output is correct
16 Correct 15 ms 1060 KB Output is correct
17 Correct 15 ms 1060 KB Output is correct
18 Correct 15 ms 1060 KB Output is correct
19 Correct 15 ms 1060 KB Output is correct
20 Correct 11 ms 1060 KB Output is correct
21 Correct 54 ms 2140 KB Output is correct
22 Correct 58 ms 2140 KB Output is correct
23 Correct 55 ms 2140 KB Output is correct
24 Correct 55 ms 2140 KB Output is correct
25 Correct 46 ms 2140 KB Output is correct
26 Correct 55 ms 2140 KB Output is correct
27 Correct 59 ms 2140 KB Output is correct
28 Correct 55 ms 2140 KB Output is correct
29 Correct 56 ms 2140 KB Output is correct
30 Correct 42 ms 2140 KB Output is correct
31 Correct 2 ms 2140 KB Output is correct
32 Correct 1 ms 2140 KB Output is correct
# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 2140 KB Output isn't correct
2 Incorrect 2 ms 2140 KB Output isn't correct
3 Incorrect 2 ms 2140 KB Output isn't correct
4 Incorrect 2 ms 2140 KB Output isn't correct
5 Incorrect 2 ms 2140 KB Output isn't correct
6 Incorrect 2 ms 2140 KB Output isn't correct
7 Incorrect 1 ms 2140 KB Output isn't correct
8 Incorrect 1 ms 2140 KB Output isn't correct
9 Incorrect 1 ms 2140 KB Output isn't correct
10 Incorrect 2 ms 2140 KB Output isn't correct
11 Incorrect 2 ms 2140 KB Output isn't correct
12 Incorrect 2 ms 2140 KB Output isn't correct
13 Incorrect 2 ms 2140 KB Output isn't correct
14 Incorrect 2 ms 2140 KB Output isn't correct
15 Incorrect 2 ms 2140 KB Output isn't correct
16 Incorrect 8 ms 2140 KB Output isn't correct
17 Incorrect 9 ms 2140 KB Output isn't correct
18 Incorrect 9 ms 2140 KB Output isn't correct
19 Incorrect 9 ms 2140 KB Output isn't correct
20 Incorrect 5 ms 2140 KB Output isn't correct
21 Incorrect 29 ms 2140 KB Output isn't correct
22 Incorrect 30 ms 2140 KB Output isn't correct
23 Incorrect 29 ms 2140 KB Output isn't correct
24 Incorrect 30 ms 2140 KB Output isn't correct
25 Incorrect 22 ms 2140 KB Output isn't correct
26 Incorrect 29 ms 2140 KB Output isn't correct
27 Incorrect 29 ms 2140 KB Output isn't correct
28 Incorrect 31 ms 2140 KB Output isn't correct
29 Incorrect 39 ms 2140 KB Output isn't correct
30 Incorrect 15 ms 2140 KB Output isn't correct
31 Incorrect 2 ms 2140 KB Output isn't correct
32 Incorrect 2 ms 2140 KB Output isn't correct