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QOJ
ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
---|---|---|---|---|---|---|---|---|---|
#838789 | #9868. GCD | TangWK | TL | 9ms | 3452kb | C++20 | 796b | 2024-12-31 22:38:35 | 2024-12-31 22:38:35 |
Judging History
answer
#include <bits/stdc++.h>
using namespace std;
using i64 = long long;
void solve() {
i64 a, b;
cin >> a >> b;
const int ti = 20;
int ans = 30;
function<void(i64,i64,int)> dfs = [&](i64 x,i64 y, int step) {
if (x == 0 && y == 0) {
ans = min(ans, step);
return;
}
if (step >= ti) {
return;
}
i64 g = gcd(x, y);
// cout << x << " " << y << " " << step << "\n";
dfs(x - g, y, step + 1);
dfs(x, y - g, step + 1);
return;
};
dfs(a, b, 0);
cout << ans << "\n";
return;
}
int main() {
ios_base::sync_with_stdio(false);
cin.tie(nullptr);
int t;
cin >> t;
while (t--) {
solve();
}
return 0;
}
Details
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Test #1:
score: 100
Accepted
time: 9ms
memory: 3452kb
input:
3 3 4 12 20 114 514
output:
3 4 6
result:
ok 3 lines
Test #2:
score: -100
Time Limit Exceeded
input:
990 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 2 3 2 4 2...