Created
June 28, 2012 05:36
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#include <stack> | |
#include <queue> | |
#include <cstdlib> | |
#include <string> | |
using namespace std; | |
string toLower(string strr) | |
{ | |
char str[100]; | |
string ret; | |
strcpy(str,strr.c_str()); | |
int differ = 'A'-'a'; | |
char ch; | |
int ii = strlen(str); | |
for (int i=0; i <ii;i++) | |
{ | |
strncpy(&ch,str+i,1); | |
if (ch>='A' && ch<='Z') | |
{ | |
ch = ch-differ; | |
memcpy(str+i,&ch,1); | |
} | |
} | |
ret = str; | |
return ret; | |
} | |
bool isPalindrome(const std::string& s) | |
{ | |
s = toLower(s); | |
stack<char> stack; | |
queue<char> queue; | |
int string_index = 0; | |
for (int i = 0; i < (int) s.length() - 1; i++) | |
{ | |
queue.push(s[string_index]); | |
stack.push(s[string_index]); | |
string_index++; | |
} | |
for (int i = 0; i< (int) s.length() - 1; i++) | |
{ | |
if(queue.size() == 0) | |
{ | |
return true; | |
} | |
if ( queue.pop() != stack.pop()) | |
{ | |
return false; | |
} | |
} | |
return true; | |
} | |
void main() | |
{ | |
} | |
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