c语言第八章字符串编程答案（C language eighth chapter string programming answers）.docVIP

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c语言第八章字符串编程答案（C language eighth chapter string programming answers）.doc

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c语言第八章字符串编程答案（C language eighth chapter string programming answers）

c语言第八章字符串编程答案（C language eighth chapter string programming answers） Character conversion describe Extracts all numeric characters in a string (` 0 , ` 9) and converts it to an integer output. input A string with a carriage return ending (less than 80 characters). output Converts all numeric characters in a string (` 0 , ` 9) into an integer and outputs it. #includestdio.h Int, main () { Char str[80]; Int i; Gets (STR); For (i=0; str[i]; =\0; i++) { If (str[i]=9str[i]=0) printf (%c, str[i]); } Printf (\n); } Merge string Enter two already in order from small to large string, write a combination of two string function, so that the string after the merger is still from small to large arrangement. Input: Two strings that have been in order (ascending order) in two columns Output: An ordered (ascending) string that is merged together Requirement： Design an algorithm that is as efficient as possible, just scan each string. If you use advanced line concatenation, and then sorting algorithm, the efficiency is too low. #includestdio.h Int, main () { Char, str1[80], str2[80], t; Int, I, N, j; Gets (STR1); Gets (STR2); Strcat (STR1, STR2); N=strlen (STR1); For (j=1; j=n; j++) For (i=0; in-j; i++) If (str1[i]=str1[i+1]) { T=str1[i]; Str1[i]=str1[i+1]; Str1[i+1]=t; } Puts (STR1); } Delete duplicate characters Enter a string of no more than 100, and delete the duplicate characters in the string. Input: Enter the string to check, no more than 100 characters in length. For example: abacaeedabcdcd. Output: String after repeated characters are deleted. For example: abced. #includestdio.h #includestring.h Int, main () { Char str[100]; Int, I, j; Gets (STR); For (i=0; str[i]; =0; i++) For (j=0; str[j]; =0; j++) If (str[j]==str[i]i, =j) str[j]=\t; For (i=0; str[i]; =0; i++) If (str[i], =\t) printf (%c, str[i]); Printf (\n); } Delete specified characters Enter two strings, S1 and S2, and delete any characters in the S2 in s1. For example, S1: abc123ad and S2: A1, then bc23d. Input: two s