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IDProblemSubmitterResultTimeMemoryLanguageFile sizeSubmit timeJudge time
#781455#5117. Find MaximumZhZlzcWA 1ms3952kbC++201.5kb2024-11-25 16:10:472024-11-25 16:10:53

Judging History

你现在查看的是最新测评结果

  • [2024-11-25 16:10:53]
  • 评测
  • 测评结果:WA
  • 用时:1ms
  • 内存:3952kb
  • [2024-11-25 16:10:47]
  • 提交

answer

#include <bits/stdc++.h>
#define int long long
#define x first
#define y second
using namespace std;
using LL = long long;
typedef pair<int, int> PII;
typedef unsigned long long ULL;
const int N = 1e6 + 10, M = 5010, mod = 998244353;
const int inf = 1e18;
mt19937_64 rng(time(0));
vector <int> pw;
int lim;
void solve() {
	int l, r;
	cin >> l >> r;
	int hpos = -1;
	for(int i = lim - 1; i >= 0; i--){
		if(r >= pw[i]){
			hpos = i;
			break;
		}
	}
	vector <int> bit(lim);
	int temp = l, cnt = 0;
	int res = 0, sum = l;
	for(int i = hpos; i >= 0; i--){
		int d = temp / pw[i];
		if(d){
			if(res == 0) res += i + 1;
			bit[i] = d;
			temp -= d * pw[i];
			cnt += d;
		} 
	}
	res += cnt;
	for(int i = 0; i <= hpos; i++){
		if(bit[i] == 2) continue;
		if(bit[i] == 1){
			if(sum + pw[i] <= r){
				sum += pw[i];
				res++;
			}else break;
		}else{
			if(sum + 2 * pw[i] <= r){
				sum += 2 * pw[i];
				res += 2;
			}else if(sum + pw[i] <= r){
				sum += pw[i];
				res++;
			}else break;
		}
	}
	int res2 = hpos + 1 + 1, sum2 = pw[hpos];
	for(int i = 0; i <= hpos; i++){
		if(sum2 + 2 * pw[i] <= r){
			sum2 += 2 * pw[i];
			res2 += 2;
		}else if(sum2 + pw[i] <= r){
			sum2 += pw[i];
			res2++;
		}else break;
	}
	cout << max(res, res2) << "\n"; 
} 
signed main() {
	ios::sync_with_stdio(0),cin.tie(0),cout.tie(0);
	int T = 1;
	cin >> T;
	pw.push_back(1);
	int cur = 1;
	while(cur <= inf){
		cur *= 3LL;
		pw.push_back(cur);
	}
	lim = pw.size();
	while(T--) {
		solve();
	}
}

Details

Tip: Click on the bar to expand more detailed information

Test #1:

score: 100
Accepted
time: 0ms
memory: 3648kb

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: 1ms
memory: 3952kb

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

result:

wrong answer 9th numbers differ - expected: '6', found: '5'