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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 |
|---|---|---|---|---|---|---|---|---|---|
| #468525 | #5. 在线 O(1) 逆元 | yzc358230151 | Compile Error | / | / | C++14 | 275b | 2024-07-08 21:20:25 | 2024-11-05 21:59:57 |
Judging History
你现在查看的是最新测评结果
- [2024-11-05 21:59:57]
- 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
- [2024-07-08 21:20:25]
- 评测
- 测评结果：Compile Error
- 用时：0ms
- 内存：0kb
- [2024-07-08 21:20:25]
- 提交
answer
#include"inv.h"
#include<unordered_map>
typedef long long ll;
int MOD;
unordered_map<int,int>Inv;
void init(int p){
MOD=p,
Inv[1]=1;
}
int inv(int x){
if(!x)
return 0;
else if(Inv[x])
return Inv[x];
else
return (ll)(MOD-MOD/x)%MOD*inv(MOD%x)%MOD;
}
详细
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:5:1: error: ‘unordered_map’ does not name a type
5 | unordered_map<int,int>Inv;
| ^~~~~~~~~~~~~
answer.code: In function ‘void init(int)’:
answer.code:8:9: error: ‘Inv’ was not declared in this scope; did you mean ‘inv’?
8 | Inv[1]=1;
| ^~~
| inv
answer.code: In function ‘int inv(int)’:
answer.code:13:17: error: ‘Inv’ was not declared in this scope; did you mean ‘inv’?
13 | else if(Inv[x])
| ^~~
| inv