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IDProblemSubmitterResultTimeMemoryLanguageFile sizeSubmit timeJudge time
#199086#5117. Find Maximumyyc4591WA 1ms3676kbC++14805b2023-10-03 20:55:522023-10-03 20:55:53

Judging History

你现在查看的是最新测评结果

  • [2023-10-03 20:55:53]
  • 评测
  • 测评结果:WA
  • 用时:1ms
  • 内存:3676kb
  • [2023-10-03 20:55:52]
  • 提交

answer

#include <bits/stdc++.h>
using namespace std;

#define int long long

int f(int x)
{
	if(x == 0)
		return 1;
	else if(x % 3 == 0)
		return f(x / 3) + 1;
	else
		return f(x - 1) + 1;
}
signed main()
{
	ios::sync_with_stdio(0);
	cin.tie(0), cout.tie(0);

	int T;
	cin >> T;
	while(T--)
	{
		int l, r;
		cin >> l >> r;

		int tr = log2(r) / log2(3); 

		bool ok = 0;
		int ans = 1;
		for(int i = tr; i >= 1; i--)
		{
			if(ok)
				break;
			int x = pow(3, i);
			// cout << x << "&&&\n";
			for(int j = r / x; j > 0 ; j--) {
				if(j * x > r)
					break;
				else if(j * x >= l && j * x <= r) {
					ans = j * x - 1;
					ok = 1;
					break;
				}
			}

		}
		// cout << ans << "***\n";
		cout << max(f(ans), f(r)) << endl;
		

	}




	return 0;
}


Details

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Test #1:

score: 100
Accepted
time: 1ms
memory: 3676kb

input:

10
1 2
1 3
1 4
1 5
2 3
2 4
2 5
3 4
3 5
4 5

output:

3
3
4
5
3
4
5
4
5
5

result:

ok 10 numbers

Test #2:

score: -100
Wrong Answer
time: 0ms
memory: 3668kb

input:

5050
1 1
1 2
1 3
1 4
1 5
1 6
1 7
1 8
1 9
1 10
1 11
1 12
1 13
1 14
1 15
1 16
1 17
1 18
1 19
1 20
1 21
1 22
1 23
1 24
1 25
1 26
1 27
1 28
1 29
1 30
1 31
1 32
1 33
1 34
1 35
1 36
1 37
1 38
1 39
1 40
1 41
1 42
1 43
1 44
1 45
1 46
1 47
1 48
1 49
1 50
1 51
1 52
1 53
1 54
1 55
1 56
1 57
1 58
1 59
1 60
1 61...

output:

2
3
3
4
5
5
5
6
6
6
6
6
6
7
6
7
8
8
8
8
8
8
8
8
8
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
10
9
9
9
9
9
10
9
10
11
11
11
11
11
11
11
11
11
11
11
11
11
11
11
11
11
11
11
11
11
11
11
11
11
11
11
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
3
3
4
5
5
5
6
6
6
6
6
6
7
6
7
8
8
8
8
8
8
8
8
8
9...

result:

wrong answer 15th numbers differ - expected: '7', found: '6'