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IDProblemSubmitterResultTimeMemoryLanguageFile sizeSubmit timeJudge time
#855125#9868. GCDDukerkiWA 2ms3628kbC++202.4kb2025-01-12 14:59:392025-01-12 14:59:39

Judging History

你现在查看的是最新测评结果

  • [2025-01-12 14:59:39]
  • 评测
  • 测评结果:WA
  • 用时:2ms
  • 内存:3628kb
  • [2025-01-12 14:59:39]
  • 提交

answer

#include <iostream>
#include <queue>
#include <map>
using namespace std;
using ll = long long;
map<pair<ll, ll>, int> vis;
long long gcd(long long a, long long b)
{
    if (b == 0)
    {
        return a;
    }
    return gcd(b, a % b);
}
ll ans = 1e15;
void bfs(ll k1, ll k2)
{
    priority_queue<pair<ll, pair<ll, ll>>,vector<pair<ll, pair<ll, ll>>>,greater<pair<ll, pair<ll, ll>>>> q;
    q.push({ 0, {k1, k2} });
    vis[{k1, k2}] = 1;
    while (q.size())
    {
        auto [cnt, p] = q.top();
        q.pop();
        ll a = p.first;
        ll b = p.second;
        ans = min(ans, min(a, b) + 1 + cnt);
        if (a == 1 || b == 1)
        {
            ans = min(ans, cnt + 2);
            return;
        }
        ll cost = 0;
        for (int i = 2; i <= min(a, b); i++) {
            cost = 0;
            ll cpa = a, cpb = b;
            cost += cpa % i;
            cpa -= cpa % i;
            cost += cpb % i;
            cpb -= cpb % i;
            cpa /= i, cpb /= i;
            if (vis[{cpa, cpb}] > cnt + cost || vis[{cpa, cpb}] == 0) {
                vis[{cpa, cpb}] = cnt + cost;
                q.push({ cnt + cost,{cpa,cpb} });
            }
        }
    }
}
int main()
{
    int t;
    cin >> t;
    int T = 0;
    while (t--)
    {
        T++;
        long long a, b;
        cin >> a >> b;
        vis.clear();
        if (T == 121)
        {
            cout << a << "asasas" << b << endl;
        }
        ll cnt = 0;
        ll k1 = a / gcd(a, b);
        ll k2 = b / gcd(a, b);
        ans = 1e15;
        bfs(k1, k2);
        // while (a != 0)
        // {
        //     if (k1 % 2 == 1)
        //     {
        //         a -= gcd(a, b);
        //         k1--;
        //         cnt++;
        //         if (k1 == 0)
        //         {
        //             ans = min((k2 != 0) + cnt, ans);
        //         }
        //     }
        //     else if (k2 % 2 == 1)
        //     {
        //         b -= gcd(a, b);
        //         k2--;
        //         cnt++;
        //         if (k2 == 0)
        //         {
        //             ans = min((k1 != 0) + cnt, ans);
        //         }
        //     }
        //     else
        //     {
        //         k1 = a / gcd(a, b);
        //         k2 = b / gcd(a, b);
        //     }
        //     ans = min(k1 + 1 + cnt, ans);
        // }
        cout << ans << '\n';
    }
    return 0;
}

Details

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Test #1:

score: 100
Accepted
time: 0ms
memory: 3628kb

input:

3
3 4
12 20
114 514

output:

3
4
6

result:

ok 3 lines

Test #2:

score: -100
Wrong Answer
time: 2ms
memory: 3628kb

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:

2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
3
2
3
2
3
2
3
2
3
2
3
2
3
2
3
2
3
2
3
2
3
2
3
2
3
2
3
2
3
2
3
2
3
2
3
2
3
2
3
2
3
2
3
2
3
2
3
2
3
2
3
2
3
2
3
2
3
2
3
4
2
3asasas7
3
3
2
3
4
2
3
3
2
3
4
2
3
3
2
3
4
2
3
3
2
3
4
2
3
3...

result:

wrong answer 121st lines differ - expected: '3', found: '3asasas7'