Revert the given string and return the resulting string.

Ex: input: "face" , result: "ecaf"

Question

Revert the given string and return the resulting string.

Ex: input: "face" , result: "ecaf"

semih · Accepted Answer

#include 
#include 
using namespace std;
void revStr(string& str)
{
    std::cout << str << endl;
  char* ep = &(str[str.size() - 1]);
  char* bp = &str[0];
  
  for( ; ep != bp ; ep--, bp++)
  {
    char c = *ep;
    *ep = *bp;
    *bp = c;
  }
}

int main()
{
  string str = "semih.kekul";
  revStr(str);
  cout << str << endl;
}

Utilisateur anonyme · Answer

Just create another string array and copy the contents of the given array to new array backwards , dont forget to get space for N+1 , not just for N, since there is null char at the end of the string and dont forget to put it.

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