CareerCup-1.5

Write a method to replace all spaces in a string with ‘%20’

簡單題仍然無法做到無誤。一定要擺脫對IDE和編譯器的依賴！

#include <iostream>using namespace std;char* replaceSpace(char* str) {    int count=0;    char *p;    for(p=str; *p!='\0'; p++)    {        if(*p==' ') count+=3;        else count += 1;    }    char* ret = new char[count+1];    char *q = ret;    for(p=str; *p!='\0'; p++)    {        if(*p != ' ')        {            *q++ = *p;        } else {            *q++ = '%';            *q++ = '2';            *q++ = '0';        }    };    *q=0;    return ret;}int main(){    cout<<replaceSpace("abdd e  1 3 123 ");    system("pause"); };