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QOJ
ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
---|---|---|---|---|---|---|---|---|---|
#665724 | #5117. Find Maximum | Repeater# | WA | 0ms | 3828kb | C++20 | 1.1kb | 2024-10-22 14:57:53 | 2024-10-22 14:57:56 |
Judging History
answer
#include <bits/stdc++.h>
using i64 = long long;
void solve()
{
i64 l, r; std::cin >> l >> r;
auto cacl = [&](i64 x) -> int
{
int ans = 0;
while(x)
{
ans += x % 3;
x /= 3;
ans++;
}
return ans;
};
int ans = std::max(cacl(l), cacl(r));
std::vector<int> L, R;
while(l)
{
L.emplace_back(l % 3);
l /= 3;
}
while(r)
{
R.emplace_back(r % 3);
r /= 3;
}
while(L.size() != R.size()) L.emplace_back(0);
std::ranges::reverse(L);
std::ranges::reverse(R);
// for(auto i : L) std::cerr << i;
// std::cerr << "\n";
// for(auto i : R) std::cerr << i;
// std::cerr << "\n";
int n = R.size();
bool flg = true;
int res = n;
for(int i = 0; i < n; i++)
{
if(L[i] == R[i])
{
res += L[i];
flg = false;
continue;
}
res += R[i] - 1;
if(R[i] == 1 && flg) res--;
res += 2 * (n - i - 1);
ans = std::max(ans, res);
break;
}
std::cout << ans << "\n";
}
int main()
{
std::ios::sync_with_stdio(false);
std::cin.tie(nullptr);
int t; std::cin >> t;
while(t--) solve();
return 0;
}
Details
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Test #1:
score: 100
Accepted
time: 0ms
memory: 3828kb
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: 3624kb
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'