Submission #302847

# Submission time Handle Problem Language Result Execution time Memory
302847 2020-09-19T09:29:06 Z arayi Gap (APIO16_gap) C++17
100 / 100
60 ms 2804 KB
#include <bits/stdc++.h>
#include "gap.h"
#define ad push_back
#define lli long long int
using namespace std;
 
int n;
lli l, r;
long long findGap(int T, int N)
{
	n = N;
	lli nl, nr;
	MinMax(0, 1e18, &nl, &nr);
	if(T == 1 || N <= 8)
    {
        vector <lli> a, b;
        a.ad(nl), b.ad(nr);
        for (int i = 0; i < (n - 1) / 2; i++)
        {
            MinMax(nl + 1, nr - 1, &nl, &nr);
            a.ad(nl), b.ad(nr);
        }
        lli mx = 0;
        reverse(b.begin(), b.end());
        for(auto p : b) a.ad(p);
        for (int i = 0; i < a.size() - 1; i++)
            mx = max(mx, a[i + 1] - a[i]);
        return mx;
    }
	lli ans = (nr - nl - 2LL) / (n - 1LL) + 1LL;
	while(nl < nr - ans)
    {
        MinMax(nl + 1, nl + ans + 1LL, &l, &r);
        if(l == -1)
        {
          	ans += 2LL;
            while(l == -1)
            {
                MinMax(nl + 1LL, nl + ans * 2, &l, &r);
                if(l == -1) ans *= 2LL, ans++;
                else ans = max(ans, l - nl), nl = r;
            }
        }
        else ans = max(ans, l - nl), nl = r;
    }
    return ans;
}

Compilation message

gap.cpp: In function 'long long int findGap(int, int)':
gap.cpp:26:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   26 |         for (int i = 0; i < a.size() - 1; i++)
      |                         ~~^~~~~~~~~~~~~~
# Verdict Execution time Memory Grader output
1 Correct 0 ms 256 KB Output is correct
2 Correct 0 ms 384 KB Output is correct
3 Correct 0 ms 384 KB Output is correct
4 Correct 0 ms 384 KB Output is correct
5 Correct 0 ms 384 KB Output is correct
6 Correct 0 ms 384 KB Output is correct
7 Correct 0 ms 384 KB Output is correct
8 Correct 0 ms 384 KB Output is correct
9 Correct 1 ms 384 KB Output is correct
10 Correct 0 ms 384 KB Output is correct
11 Correct 1 ms 384 KB Output is correct
12 Correct 1 ms 384 KB Output is correct
13 Correct 1 ms 384 KB Output is correct
14 Correct 1 ms 384 KB Output is correct
15 Correct 1 ms 384 KB Output is correct
16 Correct 15 ms 1024 KB Output is correct
17 Correct 14 ms 1024 KB Output is correct
18 Correct 14 ms 1152 KB Output is correct
19 Correct 13 ms 1024 KB Output is correct
20 Correct 9 ms 1024 KB Output is correct
21 Correct 54 ms 2716 KB Output is correct
22 Correct 53 ms 2712 KB Output is correct
23 Correct 53 ms 2716 KB Output is correct
24 Correct 53 ms 2716 KB Output is correct
25 Correct 46 ms 2716 KB Output is correct
26 Correct 57 ms 2676 KB Output is correct
27 Correct 60 ms 2804 KB Output is correct
28 Correct 53 ms 2728 KB Output is correct
29 Correct 53 ms 2716 KB Output is correct
30 Correct 39 ms 2800 KB Output is correct
31 Correct 0 ms 384 KB Output is correct
32 Correct 0 ms 384 KB Output is correct
# Verdict Execution time Memory Grader output
1 Correct 0 ms 384 KB Output is correct
2 Correct 0 ms 384 KB Output is correct
3 Correct 0 ms 384 KB Output is correct
4 Correct 0 ms 384 KB Output is correct
5 Correct 0 ms 384 KB Output is correct
6 Correct 0 ms 384 KB Output is correct
7 Correct 0 ms 384 KB Output is correct
8 Correct 0 ms 384 KB Output is correct
9 Correct 0 ms 384 KB Output is correct
10 Correct 0 ms 384 KB Output is correct
11 Correct 1 ms 384 KB Output is correct
12 Correct 1 ms 384 KB Output is correct
13 Correct 1 ms 384 KB Output is correct
14 Correct 1 ms 384 KB Output is correct
15 Correct 1 ms 384 KB Output is correct
16 Correct 10 ms 512 KB Output is correct
17 Correct 9 ms 512 KB Output is correct
18 Correct 10 ms 512 KB Output is correct
19 Correct 10 ms 512 KB Output is correct
20 Correct 4 ms 512 KB Output is correct
21 Correct 36 ms 1148 KB Output is correct
22 Correct 37 ms 1144 KB Output is correct
23 Correct 37 ms 1060 KB Output is correct
24 Correct 40 ms 1144 KB Output is correct
25 Correct 60 ms 1144 KB Output is correct
26 Correct 37 ms 1128 KB Output is correct
27 Correct 38 ms 1144 KB Output is correct
28 Correct 45 ms 1144 KB Output is correct
29 Correct 36 ms 1144 KB Output is correct
30 Correct 23 ms 1152 KB Output is correct
31 Correct 0 ms 384 KB Output is correct
32 Correct 0 ms 384 KB Output is correct