求给定数字的个位

Status	Submit By	Time	Memory	Language	Code	Submit At
AC	沈昊	12ms	6.7 MiB	C++14(O2)	108 Bytes	2025-5-16 17:00:34
AC	项哲锡（月叼） (GK57)	12ms	6.4 MiB	C++14(O2)	115 Bytes	2025-4-28 21:59:18
AC	张皓翔	12ms	6.5 MiB	C++14(O2)	124 Bytes	2025-4-24 16:43:39
AC	张祖源	13ms	6.4 MiB	C++14(O2)	115 Bytes	2025-5-10 16:57:39
AC	陈珦宸	13ms	6.3 MiB	C++14(O2)	94 Bytes	2025-4-11 20:18:24
AC	吴存焕	13ms	6.4 MiB	C++14(O2)	133 Bytes	2025-5-28 20:52:54
AC	陈思琪	13ms	6.3 MiB	C++14(O2)	110 Bytes	2025-4-3 14:03:32
AC	金柏辰	13ms	6.4 MiB	C++14(O2)	110 Bytes	2025-5-23 21:41:48
AC	谢安桢	13ms	6.5 MiB	C++14(O2)	112 Bytes	2025-5-9 16:10:10
AC	杨潇然 (WC5)	13ms	6.3 MiB	C++14(O2)	106 Bytes	2025-3-29 16:27:31
AC	郑舒芯	13ms	6.4 MiB	C++14(O2)	108 Bytes	2025-5-24 19:32:09
AC	罗文博	13ms	6.4 MiB	C++14(O2)	109 Bytes	2025-4-16 16:03:46
AC	应若水	13ms	6.4 MiB	C++14(O2)	127 Bytes	2025-5-17 7:31:30
AC	陈景朔	13ms	6.3 MiB	C++14(O2)	106 Bytes	2025-3-22 14:18:40
AC	吴联铄	13ms	6.4 MiB	C++14(O2)	197 Bytes	2025-5-4 22:26:03
AC	叶雨枫	14ms	6.6 MiB	C++11	155 Bytes	2025-3-19 18:46:33
AC	赵沈瑞	14ms	6.6 MiB	C++14(O2)	142 Bytes	2025-5-16 17:08:59
AC	苏德轩	15ms	6.3 MiB	C++14(O2)	106 Bytes	2025-4-3 14:05:26
AC	陈俊醍	24ms	6.6 MiB	C++14(O2)	123 Bytes	2025-4-24 16:00:24