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#include <iostream>
using namespace std;
bool isLower(char ch)
{
return 'a' <= ch && ch <= 'z';
}
bool isUpper(char ch)
{
return 'A' <= ch && ch <= 'Z';
}
void countLowerAndCapitalLetters(const char* str, unsigned& lowerCount, unsigned& capitalCount)
{
while (*str != '\0')
{
if (isLower(*str))
lowerCount++;
else if (isUpper(*str))
capitalCount++;
str++;
}
}
void getTwoStrings(const char* str, char*& lowerStr, char*& upperStr)
{
unsigned lowerCount = 0;
unsigned upperCount = 0;
countLowerAndCapitalLetters(str, lowerCount, upperCount);
char* lowerSymbolsString = new char[lowerCount + 1];
char* upperSymbolsString = new char[upperCount + 1];
unsigned lowerIter = 0;
unsigned upperIter = 0;
while (*str != '\0')
{
if (isLower(*str))
lowerSymbolsString[lowerIter++] = *str;
else if (isUpper(*str))
upperSymbolsString[upperIter++] = *str;
str++;
}
lowerSymbolsString[lowerIter] = '\0';
upperSymbolsString[upperIter] = '\0';
lowerStr = lowerSymbolsString;
upperStr = upperSymbolsString;
}
int main()
{
char* lowerStr = nullptr;
char* upperStr = nullptr;
getTwoStrings("abc34345ABCDd", lowerStr, upperStr);
cout << lowerStr << endl;
cout << upperStr << endl;
delete[] lowerStr, upperStr;
}
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