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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 |
---|---|---|---|---|---|---|---|---|---|
#798245 | #5. 在线 O(1) 逆元 | zzafanti | 80 | 5415ms | 394552kb | C++23 | 477b | 2024-12-04 10:11:07 | 2024-12-04 10:11:09 |
Judging History
answer
#include<bits/stdc++.h>
using namespace std;
using E=long long;
const int Lim=1e8;
int Inv[Lim+1];
const E mod=998244353;
const __int128 brt=((__int128)1<<64)/mod;
void init(int p){
Inv[1]=1;
for(int i=2; i<=Lim; i++){
Inv[i]=(mod-mod/i)*Inv[mod%i]%mod;
}
}
int inv(int x){
return x<=Lim?Inv[x]:(mod-mod/x)*inv(mod%x)%mod;
}
#ifdef zzafanti
int main(){
init(mod);
cout<<inv(23214153)<<endl;
return 0;
}
#endif // zzafanti
详细
Pretests
Final Tests
Test #1:
score: 10
Accepted
time: 936ms
memory: 394412kb
Test #2:
score: 20
Accepted
time: 1515ms
memory: 394344kb
Test #3:
score: 30
Accepted
time: 3763ms
memory: 394540kb
Test #4:
score: 20
Accepted
time: 5415ms
memory: 394552kb
Test #5:
score: 0
Time Limit Exceeded