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QOJ

IDProblemSubmitterResultTimeMemoryLanguageFile sizeSubmit timeJudge time
#585281#9376. Gamemt666WA 117ms3700kbC++23902b2024-09-23 20:06:482024-09-23 20:06:48

Judging History

你现在查看的是最新测评结果

  • [2024-09-23 20:06:48]
  • 评测
  • 测评结果:WA
  • 用时:117ms
  • 内存:3700kb
  • [2024-09-23 20:06:48]
  • 提交

answer

#include<bits/stdc++.h>
using namespace std;
#define INF 2e18
#define int long long
const int N=1e6+10,mod=998244353;
int x,y,p0,p1,t;
int ans;
int qmi(int a,int b)
{
	int res=1;
	while(b)
	{
		if(b&1) res=res*a%mod;
		a=a*a%mod;
		b>>=1;
	}
	return res%mod;
}
void dfs(int a,int b,int last)
{
	if(a==b)
	{
		ans=(ans+last*p0%mod)%mod;
		return;
	}
	if(a<b)
	{
	    int k=(b-1)/a;
	    last=last*qmi(p0,k);
	    dfs(a,b-k*a,last);
	}
	else
	{
	    int k=(a-1)/b;
	    ans=(ans+last*(1-qmi(p1,k)+mod)%mod)%mod;
	    last=last*qmi(p1,k)%mod;
	    dfs(a-k*b,b,last);
	}
}
void solve()
{
	cin>>x>>y>>p0>>p1>>t;
	t=p0+p1;
	p0=p0*qmi(t,mod-2)%mod;
	p1=p1*qmi(t,mod-2)%mod;
	ans=0;
	dfs(x,y,1);
	cout<<ans%mod<<endl;
}
signed main()
{
	ios::sync_with_stdio(false);
    cin.tie(NULL);
    cout.tie(NULL);
    int _;
    cin>>_;
    while(_--) solve();
}

Details

Tip: Click on the bar to expand more detailed information

Test #1:

score: 100
Accepted
time: 0ms
memory: 3648kb

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: 0
Accepted
time: 59ms
memory: 3700kb

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
45779380
870227707
169499045
86396463
415694940
46851356
951368934
426243016
864656779
750317399
922456360
486881524
824329239
198191519
189360084
966510181
512645443
695650039
703100783
550002158
438470182
246877045
39876086
667870434
405196653
5935...

result:

ok 100000 lines

Test #3:

score: -100
Wrong Answer
time: 117ms
memory: 3580kb

input:

100000
167959139 481199252
18199423 25950409 149762920
773386884 579721198
16629525 28339910 152155823
2087506 268792718
43528658 6471925 90197530
691952768 717268783
516613092 94328992 743662288
45277106 856168102
309821265 346013425 963168258
279198849 527268921
30167950 166388455 577970339
140515...

output:

-395924882
-37534472
538996492
-100074048
-969491127
93512811
770490227
-832222172
-187447854
88725848
-111121039
-474333909
-199184287
434237042
-208487579
555475099
203547423
808126245
-503857627
160914898
417168816
61839619
-614643351
14106370
367085364
-632928
-730464428
787121905
-348626739
-37...

result:

wrong answer 1st lines differ - expected: '623291477', found: '-395924882'