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void Reverse(char s[])
{
for(int i = 0, j = strlen(s) - 1; i < j; ++i, --j) {
char c = s[i];
s[i] = s[j];
s[j] = c;
}
}
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a ^= b;
b ^= a;
a ^= b;
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char* strrev1(const char* str)
{
int len = strlen(str);
char* tmp = new char[len + 1];
strcpy(tmp,str);
for (int i = 0; i < len/2; ++i)
{
char c = tmp[i];
tmp[i] = tmp[len – i - 1];
tmp[len – i - 1] = c;
}
return tmp;
}
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char* strrev2(const char* str)
{
char* tmp = new char[strlen(str) + 1];
strcpy(tmp,str);
char* ret = tmp;
char* p =
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inline int pop(unsigned x){
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