String Detection two--BCD transcoding

Description: Given a string of numbers, BCD encoding, after the completion of the encoding in 8Bit to output the corresponding decimal value, if the given string is an odd digit, the encoding needs to be at the highest bit 0.

Simple BCD code: decimal Value 0~9, respectively, corresponding to 4bit binary encoding 0000~1001

Given the number string 1234, the corresponding BCD code is 0001,0010,0011,0100, the output decimal value in 8bit is: 18 52

Given the number string 123, the corresponding BCD code is 0000 0001 0010 0011 (the highest bit of 0), starting from the high level in 8bit output decimal value is: 135

Input: Only consider the case where the input string is a positive integer and the number of bits does not exceed 10 bits, the exception is not considered.

Output: No space interval is required for output.

Example input: 123

Sample output: 135

1#include <stdio.h>2#include <stdlib.h>3#include <iostream>4#include <math.h>5 Char* Bcdchange (Chara)6 {7         Switch(a)8         {9             Case '0':Ten                    return "0000"; One                     Break; A             Case '1': -                    return "0001"; -                     Break; the             Case '2': -                    return "0010"; -                     Break; -             Case '3': +                    return "0011"; -                     Break; +             Case '4': A                    return "0100"; at                     Break; -             Case '5': -                    return "0101"; -                     Break; -             Case '6': -                    return "0110"; in                     Break; -             Case '7': to                    return "0111"; +                     Break; -             Case '8': the                    return " +"; *                     Break; $             Case '9':Panax Notoginseng                    return "1001"; -                     Break; the         } + } A intMain () the { +         Charinput[Ten]=" /"; -         Charoutput[Ten]=" /"; $         Chartmp[3]=" /"; $scanf"%s", input); -         intLen =4*strlen (input); -         Charbcd[ -] =" /"; the          for(size_t i =0; I <strlen (input); i++) -         {Wuyi                 Char*pbcd=Bcdchange (Input[i]); the strcat (BCD,PBCD); -         } Wu         if((Strlen (BCD))%8) -         { About                 Charaddstr[ the] ="0000"; $ strcat (ADDSTR,BCD); -Memset (BCD,0, strlen (BCD)); - strcpy (BCD,ADDSTR); -         } A         intLEN_BCD =strlen (BCD); +printf"%s\n", BCD); the         intA =0; -          for(size_t i =0; I<strlen (BCD); i = i+8) $         { theA =0; thememset (TMP,0, strlen (TMP)); thesize_t j =0; the                  for(j =0; J <8; j + +) -                 { in                         if(bcd[i+j]=='1') the                         { theA = A + (int) Pow (2,7-j); About  the                         } the                 } the_itoa (A, TMP,Ten); + strcat (output, TMP);  -         } theprintf"%s\n", output);Bayi GetChar (); the GetChar (); the         return 0; -}

String Detection two--BCD transcoding