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IDProblemSubmitterResultTimeMemoryLanguageFile sizeSubmit timeJudge time
#241442#5. 在线 O(1) 逆元mfeitveerCompile Error//C++14377b2023-11-06 07:43:072024-11-05 21:54:03

Judging History

你现在查看的是最新测评结果

  • [2024-11-05 21:54:03]
  • 管理员手动重测本题所有提交记录
  • [2023-11-06 07:43:08]
  • 评测
  • [2023-11-06 07:43:07]
  • 提交

answer

#include <inv.h>

const int N = 10000010;
const int mod = 998244353;

ll Inv[N];

inline ll ask(ll x)
{
	 fir++;
    if(x <= 10000000) return Inv[x];
    return (mod - mod / x) * ask(mod % x) % mod;
}

inline void init(int p)
{
	Inv[1] = 1;
	fro(i, 2, 10000000)
		Inv[i] = (mod - mod / i) * Inv[mod % i] % mod;
}

inline int inv(int x)
	{ return ask(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:1:10: fatal error: inv.h: No such file or directory
    1 | #include <inv.h>
      |          ^~~~~~~
compilation terminated.