华为机试——首字母大写

C_C++_BJH_01. Capitalize the First Letter

• Description:

Design a function that meets the following requirements:

l Capitalize the first letter of each word in a character string.

l If the first letter is capitalized or the first character is not a letter, leave the first character unchanged.

• Function to be implemented:

void vConvert2Upper(char *pInputStr, long lInputLen, char *pOutputStr);

[Input] pInputStr: pointing to a character string

lInputLen: length of the character string

pOutputStr: pointing to a (lInputLen+1)–sized memory for output

[Output] None

[Note] Implement only the function algorithm, and do not perform any input or output.

• Example

Input: this is a Dog.

Output: This Is A Dog.

 

 

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#include <iostream> #include <string.h> #include <ctype.h> using namespace std;     void vConvert2Upper(char *pInputStr, long lInputLen, char *pOutputStr) {     if ((pInputStr == NULL) || (lInputLen <= 0) || (pOutputStr == NULL))     {         return;     }       for (int i = 0; i < lInputLen; i++)     {         if ((i == 0) || (*pInputStr == ' '))         {             if (*pInputStr == ' ')             {                   *pOutputStr = *pInputStr;                 pInputStr++;                 pOutputStr++;             }               if (islower(*pInputStr))             {                 *pOutputStr = *pInputStr + 'A' - 'a';             }             else             {                 *pOutputStr = *pInputStr;             }         }         else         {             *pOutputStr = *pInputStr;         }           pInputStr++;         pOutputStr++;     }       *pOutputStr = '\0'; }   int main() {       char *pInputStr = "this is a Dog.";     char pOutputStr[20];     vConvert2Upper(pInputStr, strlen(pInputStr), pOutputStr);     cout << pOutputStr;     return 0; }