QOJ.ac
QOJ
ID | 题目 | 提交者 | 结果 | 用时 | 内存 | 语言 | 文件大小 | 提交时间 | 测评时间 |
---|---|---|---|---|---|---|---|---|---|
#623898 | #5117. Find Maximum | m107239# | WA | 0ms | 3668kb | C++20 | 749b | 2024-10-09 14:20:27 | 2024-10-09 14:20:31 |
Judging History
answer
#include <iostream>
using namespace std;
using ll = long long;
static ll floor_log_3(ll x) {
ll z = 1, r = 0;
while (z * 3 <= x) {
z *= 3;
r++;
}
return r;
}
static ll pow_3(ll x) {
ll r = 1;
for (ll i = 0; i < x; i++) {
r *= 3;
}
return r;
}
int main() {
ios::sync_with_stdio(false);
cin.tie(nullptr);
int t;
cin >> t;
while (t--) {
ll l, r;
cin >> l >> r;
ll r_log = floor_log_3(r);
ll m = pow_3(r_log);
ll ans = r_log + r - m + 2;
if (m > l && r_log > 0) {
ans = max(ans, r_log + m - pow_3(r_log - 1));
}
cout << ans << endl;
}
return 0;
}
详细
Test #1:
score: 100
Accepted
time: 0ms
memory: 3636kb
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 6 7 8 8 8 8 8 8 9 10 11 12 13 14 15 16 17 18 19 20 21 21 21 21 21 21 21 21 21 21 21 21 21 21 21 21 21 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 58 58 58 58 58 58 58 58 58 58 58 58 58 58 58 58 58 58 58 58 3 3 4 5 6 7 8 ...
result:
wrong answer 6th numbers differ - expected: '5', found: '6'