#345399 (C) No.747 循環小数N桁目 Hard

• 問題: No.747 循環小数N桁目 Hard
• ユーザー: bal4u
• 提出日時: 2019-05-06 17:06:23
• 言語: C (gcc 12.3.0)
• 結果: AC
• 実行時間: 2 ms / 2,000 ms
• コード長: 1,365 bytes
• コンパイル時間: 199 ms
• コンパイル使用メモリ: 29,824 KB
• 実行使用メモリ: 5,376 KB
• 最終ジャッジ日時: 2024-06-27 23:25:59
• 合計ジャッジ時間: 3,703 ms
• ジャッジサーバーID （参考情報）: judge3 / judge1

入力	結果	実行時間; 実行使用メモリ
testcase_00	AC	1 ms; 5,248 KB
testcase_01	AC	1 ms; 5,376 KB
testcase_02	AC	1 ms; 5,376 KB
testcase_03	AC	1 ms; 5,376 KB
testcase_04	AC	1 ms; 5,376 KB
testcase_05	AC	1 ms; 5,376 KB
testcase_06	AC	1 ms; 5,376 KB
testcase_07	AC	1 ms; 5,376 KB
testcase_08	AC	1 ms; 5,376 KB
testcase_09	AC	1 ms; 5,376 KB
testcase_10	AC	1 ms; 5,376 KB
testcase_11	AC	1 ms; 5,376 KB
testcase_12	AC	1 ms; 5,376 KB
testcase_13	AC	1 ms; 5,376 KB
testcase_14	AC	1 ms; 5,376 KB
testcase_15	AC	1 ms; 5,376 KB
testcase_16	AC	1 ms; 5,376 KB
testcase_17	AC	1 ms; 5,376 KB
testcase_18	AC	1 ms; 5,376 KB
testcase_19	AC	1 ms; 5,376 KB
testcase_20	AC	1 ms; 5,376 KB
testcase_21	AC	1 ms; 5,376 KB
testcase_22	AC	1 ms; 5,376 KB
testcase_23	AC	1 ms; 5,376 KB
testcase_24	AC	1 ms; 5,376 KB
testcase_25	AC	1 ms; 5,376 KB
testcase_26	AC	2 ms; 5,376 KB
testcase_27	AC	1 ms; 5,376 KB
testcase_28	AC	1 ms; 5,376 KB
testcase_29	AC	1 ms; 5,376 KB
testcase_30	AC	1 ms; 5,376 KB
testcase_31	AC	1 ms; 5,376 KB
testcase_32	AC	1 ms; 5,376 KB
testcase_33	AC	1 ms; 5,376 KB
testcase_34	AC	1 ms; 5,376 KB
testcase_35	AC	2 ms; 5,376 KB
testcase_36	AC	1 ms; 5,376 KB
testcase_37	AC	1 ms; 5,376 KB
testcase_38	AC	1 ms; 5,376 KB
testcase_39	AC	1 ms; 5,376 KB
testcase_40	AC	1 ms; 5,376 KB
testcase_41	AC	2 ms; 5,376 KB
testcase_42	AC	1 ms; 5,376 KB
testcase_43	AC	1 ms; 5,376 KB
testcase_44	AC	1 ms; 5,376 KB
testcase_45	AC	1 ms; 5,376 KB
testcase_46	AC	1 ms; 5,376 KB
testcase_47	AC	1 ms; 5,376 KB
testcase_48	AC	1 ms; 5,376 KB
testcase_49	AC	1 ms; 5,376 KB
testcase_50	AC	1 ms; 5,376 KB
testcase_51	AC	1 ms; 5,376 KB
testcase_52	AC	1 ms; 5,376 KB
testcase_53	AC	2 ms; 5,376 KB
testcase_54	AC	1 ms; 5,376 KB
testcase_55	AC	1 ms; 5,376 KB
testcase_56	AC	2 ms; 5,376 KB
testcase_57	AC	1 ms; 5,376 KB
testcase_58	AC	2 ms; 5,376 KB
testcase_59	AC	1 ms; 5,376 KB
testcase_60	AC	1 ms; 5,376 KB
testcase_61	AC	1 ms; 5,376 KB
testcase_62	AC	1 ms; 5,376 KB
testcase_63	AC	1 ms; 5,376 KB
testcase_64	AC	1 ms; 5,376 KB
testcase_65	AC	1 ms; 5,376 KB
testcase_66	AC	1 ms; 5,376 KB
testcase_67	AC	2 ms; 5,376 KB
testcase_68	AC	1 ms; 5,376 KB
testcase_69	AC	1 ms; 5,376 KB
testcase_70	AC	1 ms; 5,376 KB
testcase_71	AC	2 ms; 5,376 KB
testcase_72	AC	1 ms; 5,376 KB
testcase_73	AC	2 ms; 5,376 KB
testcase_74	AC	1 ms; 5,376 KB
testcase_75	AC	1 ms; 5,376 KB
testcase_76	AC	1 ms; 5,376 KB
testcase_77	AC	1 ms; 5,376 KB
testcase_78	AC	1 ms; 5,376 KB
testcase_79	AC	1 ms; 5,376 KB
testcase_80	AC	1 ms; 5,376 KB
testcase_81	AC	1 ms; 5,376 KB
testcase_82	AC	1 ms; 5,376 KB
testcase_83	AC	1 ms; 5,376 KB
testcase_84	AC	1 ms; 5,376 KB
testcase_85	AC	2 ms; 5,376 KB
testcase_86	AC	1 ms; 5,376 KB
testcase_87	AC	2 ms; 5,376 KB
testcase_88	AC	1 ms; 5,376 KB
testcase_89	AC	1 ms; 5,376 KB
testcase_90	AC	1 ms; 5,376 KB
testcase_91	AC	1 ms; 5,376 KB
testcase_92	AC	1 ms; 5,376 KB
testcase_93	AC	2 ms; 5,376 KB
testcase_94	AC	1 ms; 5,376 KB
testcase_95	AC	2 ms; 5,376 KB
testcase_96	AC	1 ms; 5,376 KB
testcase_97	AC	2 ms; 5,376 KB
testcase_98	AC	2 ms; 5,376 KB
testcase_99	AC	1 ms; 5,376 KB
testcase_100	AC	1 ms; 5,376 KB
testcase_101	AC	1 ms; 5,376 KB
testcase_102	AC	1 ms; 5,376 KB
testcase_103	AC	1 ms; 5,376 KB
testcase_104	AC	2 ms; 5,376 KB
testcase_105	AC	1 ms; 5,376 KB
testcase_106	AC	2 ms; 5,376 KB
testcase_107	AC	2 ms; 5,376 KB
testcase_108	AC	2 ms; 5,376 KB
testcase_109	AC	2 ms; 5,376 KB
testcase_110	AC	2 ms; 5,376 KB
testcase_111	AC	2 ms; 5,376 KB
testcase_112	AC	1 ms; 5,376 KB
testcase_113	AC	1 ms; 5,376 KB
testcase_114	AC	1 ms; 5,376 KB
testcase_115	AC	1 ms; 5,376 KB
testcase_116	AC	1 ms; 5,376 KB
testcase_117	AC	1 ms; 5,376 KB
testcase_118	AC	2 ms; 5,376 KB
testcase_119	AC	1 ms; 5,376 KB
testcase_120	AC	1 ms; 5,376 KB
testcase_121	AC	1 ms; 5,376 KB
testcase_122	AC	1 ms; 5,376 KB
testcase_123	AC	1 ms; 5,376 KB

コンパイルメッセージ

main.c: In function 'ins':
main.c:7:14: warning: implicit declaration of function 'getchar_unlocked' [-Wimplicit-function-declaration]
    7 | #define gc() getchar_unlocked()
      |              ^~~~~~~~~~~~~~~~
main.c:16:17: note: in expansion of macro 'gc'
   16 |         do *s = gc();
      |                 ^~
main.c: In function 'main':
main.c:8:15: warning: implicit declaration of function 'putchar_unlocked' [-Wimplicit-function-declaration]
    8 | #define pc(c) putchar_unlocked(c)
      |               ^~~~~~~~~~~~~~~~
main.c:78:9: note: in expansion of macro 'pc'
   78 |         pc(ans[p]), pc('\n');
      |         ^~

ソースコード

// yukicoder: No.747 循環小数N桁目 Hard
// 2019.5.6 bal4u

#include <stdio.h>

#if 1
#define gc() getchar_unlocked()
#define pc(c) putchar_unlocked(c)
#else
#define gc() getchar()
#define pc(c) putchar(c)
#endif
int ins(char *s)  // 文字列の入力　スペース以下の文字で入力終了
{
	char *p = s;
	do *s = gc();
	while (*s++ > ' ');
	*--s = 0;
	return s - p;
}

#define NN  1000000000

void mpStr2Num(int *num, int w, char *str)
{
	char *ss;
	int  *nn;
	int  k, x;

	if (*str == '0') { *num = 0; return; }
	ss = str + w;
	x = 0, k = 1, nn = num;
	do {
		x += (*--ss - '0') * k;
		k *= 10;
		if (k == NN || ss == str) *++nn = x, x = 0, k = 1;
	} while (ss != str);
	*num = nn - num;
}

// 多倍長整数 za を 整数 ab で割ったあまり  = za % zb
int mpMod(int *za, int zb)
{
	int  i = *za;
	int  *aa = za + *za;
	int  ca = 0;
	long long x;

	while (i--) {
		x = (long long)NN * ca + *aa--;
		ca = (int)(x % zb);
	}
	return ca;
}

char ans[6] = "428571";
int a[6][2] = {{0,0},{1,1},{4,2},{3,3},{4,4},{1,5}};
char s[100005];
int base[12000];

int main()
{
	int N, K, w, p = 1;

	// Nの入力と処理
	w = ins(s);
	if (w == 1 && *s == '1') goto Done;
	mpStr2Num(base, w, s);
	N = mpMod(base, 6);
	
	// Kの入力と処理
	w = ins(s);
	if (*s == '0') goto Done;
	K = s[w-1] & 1;
	p = a[N][K];
	
Done:
	pc(ans[p]), pc('\n');
	return 0;
}