QOJ.ac
QOJ
ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
---|---|---|---|---|---|---|---|---|---|
#587541 | #9376. Game | DING | WA | 203ms | 3676kb | C++17 | 1.1kb | 2024-09-24 20:34:58 | 2024-09-24 20:34:59 |
Judging History
answer
#include<bits/stdc++.h>
#define int long long
using namespace std;
const int mod=998244353;
int quick(int a,int n){
int res=1;
while(n){
if(n&1)res=res*a%mod;
a=a*a%mod;
n>>=1;
}
return res%mod;
}
int x,y,a0,a1,b,ni;
int dfs(int x,int y,int ans ){
if(x==0)return 0;
if(y==0)return 1;
if(x==y)return ans%mod+a0*ni%mod;
if(x>y){
int ci=x/y;
x=x%y;
if(x==0)swap(x,y);
ans=ans%mod+(quick(a0+a1,ci)-quick(a1,ci)+mod)%mod*quick(ni,ci)%mod*dfs(x,y,ans)%mod;
// cout<<ans<<"!"<<endl;
// return ans;
}
else if(x<y){
int ci=y/x;
y=y%x;
ans=ans%mod+quick(a0,ci)*quick(ni,ci)%mod*dfs(x,y,ans)%mod;
// cout<<ans<<"?"<<endl;
// return ans;
}
return ans;
}
void solve(){
cin>>x>>y>>a0>>a1>>b;
int tem=a1+a0;
a1=a1/__gcd(tem,a1);
a0=a0/__gcd(tem,a0);
ni=quick(a0+a1,mod-2);
int ans=dfs(x,y,0);
cout<<ans%mod<<endl;
}
signed main(){
int t;
cin>>t;
// cout<<quick(2,10)<<endl;
while(t--){
solve();
}
return 0;
}
Details
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Test #1:
score: 100
Accepted
time: 0ms
memory: 3600kb
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: 193ms
memory: 3676kb
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: 203ms
memory: 3628kb
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:
608995310 620079102 727965251 354043457 237529370 185705341 688746363 797524782 194679713 97357232 289151763 196821352 493643448 202200956 308868970 865672284 926620746 789172633 354204967 857714362 339201365 657279957 147359153 320705968 942666612 366758550 130408608 278851852 211011173 863472585 4...
result:
wrong answer 1st lines differ - expected: '623291477', found: '608995310'