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QOJ
| ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
|---|---|---|---|---|---|---|---|---|---|
| #713796 | #5. 在线 O(1) 逆元 | Mango2011 | Compile Error | / | / | C++14 | 338b | 2024-11-05 20:34:17 | 2024-11-05 22:08:14 |
Judging History
你现在查看的是最新测评结果
- [2024-11-05 22:08:14]
- 管理员手动重测本题所有提交记录
- 测评结果：Compile Error
- 用时：0ms
- 内存：0kb
- [2024-11-05 20:34:18]
- 评测
- 测评结果：Compile Error
- 用时：0ms
- 内存：0kb
- [2024-11-05 20:34:17]
- 提交
answer
#include<bits/stdc++.h>
#define ll long long
const ll mod=998244353;
int qp(ll x,int y){
ll res=1;
while(y){
if(y&1){
res=res*x%mod;
}
x=x*x%mod;
y>>=1;
}
return res;
}
int inv[100005];
void init(int P){
for(int i=0;i<100000;i++){
inv[i]=qp(i,mod-2);
}
}
int inv(int x)
{
return inv[x];
}
Details
implementer.cpp: In function ‘int main()’:
implementer.cpp:22:14: warning: ignoring return value of ‘int scanf(const char*, ...)’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
22 | scanf("%d", &n);
| ~~~~~^~~~~~~~~~
answer.code:21:14: error: ‘int inv(int)’ redeclared as different kind of entity
21 | int inv(int x)
| ^
answer.code:15:5: note: previous declaration ‘int inv [100005]’
15 | int inv[100005];
| ^~~