QOJ.ac
QOJ
| 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 |
|---|---|---|---|---|---|---|---|---|---|
| #23826 | #5. 在线 O(1) 逆元 | feecle6418 | 70 | 1586ms | 81836kb | C++20 | 322b | 2022-03-19 16:35:11 | 2022-04-30 04:19:44 |
Judging History
This is a historical verdict posted at 2022-04-30 04:19:44.
- [2023-08-10 23:21:45]
- System Update: QOJ starts to keep a history of the judgings of all the submissions.
- [2022-03-19 16:35:11]
- Submitted
answer
#include<bits/stdc++.h>
#include"inv.h"
using namespace std;
typedef long long ll;
const int mod=998244353;
int ny[20000005];
int inv(int x){
if(x<=20000000)return ny[x];
return 1ll*inv(mod%x)*(mod-mod/x)%mod;
}
void init(int p){
ny[1]=1;
for(int i=2;i<=20000000;i++)ny[i]=1ll*ny[mod%i]*(mod-mod/i)%mod;
}
詳細信息
Test #1:
score: 30
Accepted
time: 385ms
memory: 81792kb
Test #2:
score: 40
Accepted
time: 1586ms
memory: 81836kb
Test #3:
score: 0
Time Limit Exceeded