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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
#587467#9376. GameyuannnWA 72ms3708kbC++231.2kb2024-09-24 20:04:452024-09-24 20:04:45

Judging History

你现在查看的是最新测评结果

  • [2024-09-24 20:04:45]
  • 评测
  • 测评结果:WA
  • 用时:72ms
  • 内存:3708kb
  • [2024-09-24 20:04:45]
  • 提交

answer

#include <bits/stdc++.h>
using namespace std;
#define int long long
#define endl '\n'

//只需要知道这个题目涉及:辗转相除(那么不用题解,也能把这个题目给补了)
//思维很简单,主要看的是,怎么去模拟实现 在m'n


const int mod=998244353;

int fpow(int x,int n){
    int ans=1;
    while(n){
        if(n&1) ans=ans*x%mod;
        x=x*x%mod;
        n>>=1;
    }
    return ans;
}
int ans=0,now=1;
int p1,p2;
int gcd(int x,int y,int op){
    if(x==0) return 0;
    int e=(y+x-1)/x;
    if(op==1) ans=(ans+now*fpow(p1,e)%mod)%mod,now=now*p1%mod;
    else ans=(ans+now*p1%mod*(fpow(p2,e-1)-1)%mod*fpow(p2-1,mod-2)%mod*p2%mod+mod)%mod,now=now*p2%mod;
    return gcd(y%x,x,op^1);
}

void solve(){
    int x,y;cin>>x>>y;
    int a0,a1,b;
    cin>>a0>>a1>>b;
    p1=a0*fpow(a0+a1,mod-2)%mod;
    p2=a1*fpow(a0+a1,mod-2)%mod;
    ans=0,now=1;
    if(x==y){cout<<fpow(2,mod-2)<<endl;return;}
    if(x<y)  gcd(x,y,1);
    else  gcd(y,x,0);
    cout<<ans<<endl;
}






signed main(){
    ios::sync_with_stdio(false);
    cin.tie(0), cout.tie(0);
    int t = 1;
    cin >> t;
    while (t--) solve();
}

詳細信息

Test #1:

score: 100
Accepted
time: 1ms
memory: 3708kb

input:

3
1 1
2 2 6
1 3
2 3 6
3 4
7 3 15

output:

499122177
910398850
220911476

result:

ok 3 lines

Test #2:

score: -100
Wrong Answer
time: 72ms
memory: 3628kb

input:

100000
1 1000000000
12980050 128257807 266126484
1 1000000000
400255084 123438563 768881284
1000000000 1000000000
24563487 72082135 450057094
1 1000000000
56952077 40876000 193815114
1000000000 1000000000
82048274 239365585 326520865
1000000000 1
309821265 346013425 963168258
1 1
104158269 199365020...

output:

947058399
376449942
499122177
138416357
499122177
857808336
499122177
499122177
985023825
499122177
273611525
951368934
499122177
499122177
499122177
203933533
499122177
824329239
499122177
499122177
499122177
499122177
499122177
178553963
499122177
414577756
246877045
39876086
499122177
405196653
4...

result:

wrong answer 3rd lines differ - expected: '612621163', found: '499122177'