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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
#836565#9868. GCDpotpotWA 2ms3708kbC++20917b2024-12-29 00:42:272024-12-29 00:42:28

Judging History

你现在查看的是最新测评结果

  • [2024-12-29 00:42:28]
  • 评测
  • 测评结果:WA
  • 用时:2ms
  • 内存:3708kb
  • [2024-12-29 00:42:27]
  • 提交

answer

#include<bits/stdc++.h>
using namespace std;
int ans = INT_MAX;

void brute_force(long long a, long long b, int cnt) {
    // cout << a << " " << b << " " << cnt << "\n";
    if (cnt > ans) return;
    if (a > b) swap(a, b);
    if (a == 0) {
        if (b != 0) cnt++;
        ans = min(ans, cnt); 
        return;
    }

    if (a % 2 == 0 && b % 2 == 0) {
        a /= 2;
        b /= 2;
        brute_force(a, b, cnt);
    }
    else {
        long long diff = __gcd(a, b);
        cnt++;
        if (a % 2 == 1) brute_force(a-diff, b, cnt);
        if (b % 2 == 1) brute_force(a, b-diff, cnt);
    }
    
}

void solve() {
    long long a, b;
    cin >> a >> b;
    ans = INT_MAX;
    brute_force(a, b, 0);
    cout << ans << "\n";
}

int main() {
    ios_base::sync_with_stdio(0);
    int T=1; 
    cin >> T;
    while (T--) {
        solve();
    }
    return 0;
}

详细

Test #1:

score: 100
Accepted
time: 0ms
memory: 3616kb

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: 3708kb

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
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
2
3
4
2
...

result:

wrong answer 185th lines differ - expected: '3', found: '4'