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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 |
|---|---|---|---|---|---|---|---|---|---|
| #288056 | #5. 在线 O(1) 逆元 | ScapeGoatTree | Compile Error | / | / | C++14 | 270b | 2023-12-21 17:31:43 | 2023-12-21 17:31:45 |
Judging History
你现在查看的是测评时间为 2023-12-21 17:31:45 的历史记录
- [2024-11-05 21:56:27]
- 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
- [2023-12-21 17:31:45]
- 评测
- 测评结果：Compile Error
- 用时：0ms
- 内存：0kb
- [2023-12-21 17:31:43]
- 提交
answer
#include "inv.h"
#define int long long
const int MOD=998244353;
const int MAXN=1e8+5;
int inv1[MOD];
void init(int p){
inv1[1]=1;
for(int i=2;i<=MOD;i++){
int k=p/i;
int r=p%i;
inv1[i]=1ll*(p-k)*inv1[r]%MOD;
}
}
int inv(int x){
return inv1[x];
}
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: In function ‘void init(long long int)’:
answer.code:11:24: warning: iteration 998244351 invokes undefined behavior [-Waggressive-loop-optimizations]
11 | inv1[i]=1ll*(p-k)*inv1[r]%MOD;
| ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~
answer.code:8:22: note: within this loop
8 | for(int i=2;i<=MOD;i++){
| ~^~~~~
/usr/bin/ld: /tmp/ccfH4Upz.o: in function `main':
implementer.cpp:(.text.startup+0x153): undefined reference to `init(int)'
/usr/bin/ld: implementer.cpp:(.text.startup+0x1f8): undefined reference to `inv(int)'
collect2: error: ld returned 1 exit status