Submission #40789

# Submission time Handle Problem Language Result Execution time Memory
40789 2018-02-08T07:24:48 Z ssnsarang2023 Gap (APIO16_gap) C++14
30 / 100
61 ms 2284 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, min(mx - 1, 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 2 ms 468 KB Output is correct
4 Correct 1 ms 476 KB Output is correct
5 Correct 1 ms 476 KB Output is correct
6 Correct 1 ms 532 KB Output is correct
7 Correct 1 ms 604 KB Output is correct
8 Correct 2 ms 604 KB Output is correct
9 Correct 2 ms 604 KB Output is correct
10 Correct 2 ms 604 KB Output is correct
11 Correct 2 ms 604 KB Output is correct
12 Correct 2 ms 604 KB Output is correct
13 Correct 2 ms 620 KB Output is correct
14 Correct 2 ms 620 KB Output is correct
15 Correct 2 ms 620 KB Output is correct
16 Correct 16 ms 1004 KB Output is correct
17 Correct 15 ms 1004 KB Output is correct
18 Correct 16 ms 1004 KB Output is correct
19 Correct 16 ms 1096 KB Output is correct
20 Correct 11 ms 1096 KB Output is correct
21 Correct 61 ms 2156 KB Output is correct
22 Correct 56 ms 2160 KB Output is correct
23 Correct 59 ms 2160 KB Output is correct
24 Correct 57 ms 2160 KB Output is correct
25 Correct 47 ms 2284 KB Output is correct
26 Correct 56 ms 2284 KB Output is correct
27 Correct 54 ms 2284 KB Output is correct
28 Correct 56 ms 2284 KB Output is correct
29 Correct 53 ms 2284 KB Output is correct
30 Correct 41 ms 2284 KB Output is correct
31 Correct 2 ms 2284 KB Output is correct
32 Correct 1 ms 2284 KB Output is correct
# Verdict Execution time Memory Grader output
1 Incorrect 2 ms 2284 KB Output isn't correct
2 Incorrect 1 ms 2284 KB Output isn't correct
3 Incorrect 1 ms 2284 KB Output isn't correct
4 Incorrect 1 ms 2284 KB Output isn't correct
5 Incorrect 2 ms 2284 KB Output isn't correct
6 Incorrect 2 ms 2284 KB Output isn't correct
7 Incorrect 2 ms 2284 KB Output isn't correct
8 Incorrect 2 ms 2284 KB Output isn't correct
9 Incorrect 2 ms 2284 KB Output isn't correct
10 Incorrect 2 ms 2284 KB Output isn't correct
11 Incorrect 2 ms 2284 KB Output isn't correct
12 Incorrect 2 ms 2284 KB Output isn't correct
13 Incorrect 2 ms 2284 KB Output isn't correct
14 Incorrect 2 ms 2284 KB Output isn't correct
15 Incorrect 2 ms 2284 KB Output isn't correct
16 Incorrect 9 ms 2284 KB Output isn't correct
17 Incorrect 8 ms 2284 KB Output isn't correct
18 Incorrect 8 ms 2284 KB Output isn't correct
19 Incorrect 8 ms 2284 KB Output isn't correct
20 Incorrect 5 ms 2284 KB Output isn't correct
21 Incorrect 29 ms 2284 KB Output isn't correct
22 Incorrect 27 ms 2284 KB Output isn't correct
23 Incorrect 33 ms 2284 KB Output isn't correct
24 Incorrect 27 ms 2284 KB Output isn't correct
25 Incorrect 28 ms 2284 KB Output isn't correct
26 Incorrect 35 ms 2284 KB Output isn't correct
27 Incorrect 27 ms 2284 KB Output isn't correct
28 Incorrect 27 ms 2284 KB Output isn't correct
29 Incorrect 28 ms 2284 KB Output isn't correct
30 Incorrect 19 ms 2284 KB Output isn't correct
31 Incorrect 2 ms 2284 KB Output isn't correct
32 Incorrect 1 ms 2284 KB Output isn't correct