Submission #52810

# Submission time Handle Problem Language Result Execution time Memory
52810 2018-06-26T20:07:17 Z zadrga Gap (APIO16_gap) C++14
100 / 100
105 ms 6264 KB
/*
Idea:
- https://codeforces.com/blog/entry/44657?#comment-293060
*/

#include "gap.h"
#include <bits/stdc++.h>

using namespace std;

#define pb push_back
#define mp make_pair
#define fi first
#define se second
#define INF (1LL * 1000 * 1000 * 1000 * 1000 * 1000 * 1000)
#define MOD (1000 * 1000 * 1000 + 7)
#define maxn 100111

typedef long long ll;
typedef long double ld;
typedef pair<int, int> pii;

set<ll> s;

ll findGap(int T, int N){
	if(T == 1){		
		ll l = 0, d = INF, x, y;
		while(s.size() < N){
			MinMax(l, d, &x, &y);
			if(x != -1)
				s.insert(x);

			if(y != -1)
				s.insert(y);

			l = x + 1;
			d = y - 1;
		}

		ll ans = -1;
		for(auto it = s.begin(); next(it) != s.end(); it++)
			ans = max(ans, *next(it) - *it);

		return ans;
	}

	if(T == 2){
		ll l = 0, d = INF, x, y, a, b;
		MinMax(l, d, &x, &y);

		if(N == 2)
			return y - x;

		ll dist = ((y - x) + (N - 2) - 1) / (N - 2);
		for(ll i = x; i <= y; i += dist){
			MinMax(i, i + dist - 1, &a, &b);
			if(a != -1)
				s.insert(a);

			if(b != -1)
				s.insert(b);
		}

		ll ans = -1;
		for(auto it = s.begin(); next(it) != s.end(); it++)
			ans = max(ans, *next(it) - *it);

		return ans;
	}
}

Compilation message

gap.cpp: In function 'll findGap(int, int)':
gap.cpp:28:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
   while(s.size() < N){
         ~~~~~~~~~^~~
gap.cpp:70:1: warning: control reaches end of non-void function [-Wreturn-type]
 }
 ^
# Verdict Execution time Memory Grader output
1 Correct 2 ms 248 KB Output is correct
2 Correct 2 ms 356 KB Output is correct
3 Correct 2 ms 560 KB Output is correct
4 Correct 2 ms 560 KB Output is correct
5 Correct 2 ms 560 KB Output is correct
6 Correct 2 ms 560 KB Output is correct
7 Correct 3 ms 560 KB Output is correct
8 Correct 2 ms 572 KB Output is correct
9 Correct 2 ms 572 KB Output is correct
10 Correct 2 ms 572 KB Output is correct
11 Correct 4 ms 572 KB Output is correct
12 Correct 4 ms 576 KB Output is correct
13 Correct 4 ms 576 KB Output is correct
14 Correct 3 ms 576 KB Output is correct
15 Correct 2 ms 576 KB Output is correct
16 Correct 20 ms 1980 KB Output is correct
17 Correct 21 ms 1980 KB Output is correct
18 Correct 21 ms 1980 KB Output is correct
19 Correct 21 ms 1980 KB Output is correct
20 Correct 17 ms 2024 KB Output is correct
21 Correct 89 ms 6120 KB Output is correct
22 Correct 102 ms 6120 KB Output is correct
23 Correct 87 ms 6120 KB Output is correct
24 Correct 88 ms 6120 KB Output is correct
25 Correct 78 ms 6120 KB Output is correct
26 Correct 84 ms 6120 KB Output is correct
27 Correct 86 ms 6120 KB Output is correct
28 Correct 93 ms 6120 KB Output is correct
29 Correct 86 ms 6120 KB Output is correct
30 Correct 70 ms 6120 KB Output is correct
31 Correct 2 ms 6120 KB Output is correct
32 Correct 2 ms 6120 KB Output is correct
# Verdict Execution time Memory Grader output
1 Correct 2 ms 6120 KB Output is correct
2 Correct 2 ms 6120 KB Output is correct
3 Correct 2 ms 6120 KB Output is correct
4 Correct 2 ms 6120 KB Output is correct
5 Correct 2 ms 6120 KB Output is correct
6 Correct 2 ms 6120 KB Output is correct
7 Correct 2 ms 6120 KB Output is correct
8 Correct 2 ms 6120 KB Output is correct
9 Correct 2 ms 6120 KB Output is correct
10 Correct 2 ms 6120 KB Output is correct
11 Correct 4 ms 6120 KB Output is correct
12 Correct 4 ms 6120 KB Output is correct
13 Correct 3 ms 6120 KB Output is correct
14 Correct 3 ms 6120 KB Output is correct
15 Correct 3 ms 6120 KB Output is correct
16 Correct 24 ms 6120 KB Output is correct
17 Correct 24 ms 6120 KB Output is correct
18 Correct 24 ms 6120 KB Output is correct
19 Correct 24 ms 6120 KB Output is correct
20 Correct 10 ms 6120 KB Output is correct
21 Correct 101 ms 6120 KB Output is correct
22 Correct 100 ms 6120 KB Output is correct
23 Correct 101 ms 6120 KB Output is correct
24 Correct 100 ms 6120 KB Output is correct
25 Correct 105 ms 6264 KB Output is correct
26 Correct 103 ms 6264 KB Output is correct
27 Correct 101 ms 6264 KB Output is correct
28 Correct 100 ms 6264 KB Output is correct
29 Correct 101 ms 6264 KB Output is correct
30 Correct 42 ms 6264 KB Output is correct
31 Correct 2 ms 6264 KB Output is correct
32 Correct 2 ms 6264 KB Output is correct