QOJ.ac
QOJ
ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
---|---|---|---|---|---|---|---|---|---|
#588334 | #9376. Game | yuannn | WA | 173ms | 3652kb | C++23 | 1.2kb | 2024-09-25 09:40:55 | 2024-09-25 09:40:55 |
Judging History
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){
if(y%x==0)ans=(ans+now*fpow(p1,e)%mod)%mod;
now=now*p1%mod;
}
else ans=(ans+now*p1%mod*(fpow(p2,e)-1)%mod*fpow(p2-1,mod-2)%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
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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: 0
Accepted
time: 60ms
memory: 3652kb
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: 173ms
memory: 3640kb
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:
353981125 891989120 289747281 835703058 422716328 866876218 775993888 534370160 75162703 897762481 480143278 152438787 627273627 877763156 569459062 517670740 726871675 595927601 467756370 8742042 576876527 93098213 769577181 412145088 772773385 325934407 498676577 829244320 136118131 702271520 2867...
result:
wrong answer 1st lines differ - expected: '623291477', found: '353981125'