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
#838789#9868. GCDTangWKTL 9ms3452kbC++20796b2024-12-31 22:38:352024-12-31 22:38:35

Judging History

你现在查看的是最新测评结果

  • [2024-12-31 22:38:35]
  • 评测
  • 测评结果:TL
  • 用时:9ms
  • 内存:3452kb
  • [2024-12-31 22:38:35]
  • 提交

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;
}

詳細信息

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...

output:


result: