QOJ.ac

QOJ

IDProblemSubmitterResultTimeMemoryLanguageFile sizeSubmit timeJudge time
#587473#9376. GameyuannnWA 64ms3656kbC++231.2kb2024-09-24 20:07:152024-09-24 20:07:16

Judging History

你现在查看的是最新测评结果

  • [2024-09-24 20:07:16]
  • 评测
  • 测评结果:WA
  • 用时:64ms
  • 内存:3656kb
  • [2024-09-24 20:07:15]
  • 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<<p1<<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();
}

Details

Tip: Click on the bar to expand more detailed information

Test #1:

score: 100
Accepted
time: 0ms
memory: 3572kb

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: 64ms
memory: 3656kb

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
612621163
138416357
592200562
857808336
870227707
169499045
985023825
415694940
273611525
951368934
426243016
864656779
750317399
203933533
486881524
824329239
198191519
189360084
966510181
512645443
695650039
178553963
550002158
414577756
246877045
39876086
667870434
405196653
5...

result:

wrong answer 6th lines differ - expected: '45779380', found: '857808336'