Integer to string
string int2String(int n){
if(n == 0) return 0;
stiring s = "";
while(n){
s += '0' + n%10;
num/=10;
}
reverse(s);//逆序输出
return s;
}
Time complexity is O (lgN)
Integer to string
string int2String(int n){
if(n == 0) return 0;
stiring s = "";
while(n){
s += '0' + n%10;
num/=10;
}
reverse(s);//逆序输出
return s;
}
Time complexity is O (lgN)