#696919 (C) No.167 N^M mod 10

• 問題: No.167 N^M mod 10
• ユーザー: pengin_2000
• 提出日時: 2021-09-06 23:08:46
• 言語: C (gcc 12.3.0)
• 結果: AC
• 実行時間: 1 ms / 1,000 ms
• コード長: 1,164 bytes
• コンパイル時間: 308 ms
• コンパイル使用メモリ: 28,864 KB
• 実行使用メモリ: 4,384 KB
• 最終ジャッジ日時: 2023-08-24 13:06:10
• 合計ジャッジ時間: 1,223 ms
• ジャッジサーバーID （参考情報）: judge12 / judge15

入力	結果	実行時間; 実行使用メモリ
testcase_00	AC	0 ms; 4,380 KB
testcase_01	AC	1 ms; 4,380 KB
testcase_02	AC	0 ms; 4,380 KB
testcase_03	AC	1 ms; 4,376 KB
testcase_04	AC	0 ms; 4,384 KB
testcase_05	AC	0 ms; 4,380 KB
testcase_06	AC	0 ms; 4,376 KB
testcase_07	AC	0 ms; 4,380 KB
testcase_08	AC	0 ms; 4,380 KB
testcase_09	AC	1 ms; 4,380 KB
testcase_10	AC	0 ms; 4,376 KB
testcase_11	AC	1 ms; 4,376 KB
testcase_12	AC	0 ms; 4,376 KB
testcase_13	AC	0 ms; 4,380 KB
testcase_14	AC	1 ms; 4,376 KB
testcase_15	AC	1 ms; 4,380 KB
testcase_16	AC	0 ms; 4,380 KB
testcase_17	AC	1 ms; 4,380 KB
testcase_18	AC	1 ms; 4,380 KB
testcase_19	AC	0 ms; 4,380 KB
testcase_20	AC	0 ms; 4,380 KB
testcase_21	AC	0 ms; 4,380 KB
testcase_22	AC	1 ms; 4,380 KB
testcase_23	AC	1 ms; 4,376 KB
testcase_24	AC	0 ms; 4,380 KB
testcase_25	AC	0 ms; 4,384 KB
testcase_26	AC	0 ms; 4,376 KB
testcase_27	AC	1 ms; 4,380 KB
testcase_28	AC	1 ms; 4,380 KB

ソースコード

#include<stdio.h>
int main()
{
	char n[10004], m[10004];
	scanf("%s%s", n, m);
	int ln, lm;
	for (ln = 0; n[ln] != '\0'; ln++);
	for (lm = 0; m[lm] != '\0'; lm++);
	if (lm == 1 && m[0] == '0')
	{
		printf("1\n");
		return 0;
	}
	int nn, mm;
	nn = n[ln - 1] - '0';
	if (lm == 1)
		mm = m[0] - '0';
	else
		mm = 10 * (m[lm - 2] - '0') + (m[lm - 1] - '0');
	int res;
	if (nn == 0)
		res = 0;
	else if (nn == 1)
		res = 1;
	else if (nn == 2)
	{
		if (mm % 4 == 1)res = 2;
		else if (mm % 4 == 2)res = 4;
		else if (mm % 4 == 3)res = 8;
		else res = 6;
	}
	else if (nn == 3)
	{
		if (mm % 4 == 1)res = 3;
		else if (mm % 4 == 2)res = 9;
		else if (mm % 4 == 3)res = 7;
		else res = 1;
	}
	else if (nn == 4)
	{
		if (mm % 2 == 1)res = 4;
		else res = 6;
	}
	else if (nn == 5)
		res = 5;
	else if (nn == 6)
		res = 6;
	else if (nn == 7)
	{
		if (mm % 4 == 1)res = 7;
		else if (mm % 4 == 2)res = 9;
		else if (mm % 4 == 3)res = 3;
		else res = 1;
	}
	else if (nn == 8)
	{
		if (mm % 4 == 1)res = 8;
		else if (mm % 4 == 2)res = 4;
		else if (mm % 4 == 3)res = 2;
		else res = 6;
	}
	else
	{
		if (mm % 2 == 1)res = 9;
		else res = 1;
	}
	printf("%d\n", res);
	return 0;
}