[問題] 麻煩大家幫我看看問題在哪

看板C_and_CPP作者alexer619 ( )時間14年前 (2011/10/06 07:03)推噓3(3推 0噓 21→)

留言24則, 11人參與討論串1/1

小弟不才讀了資工相關科系將近七年最近找工作卻連連被拒絕如果被一間拒絕可能剛好只是我的某個地方沒有達到他們要求但被兩間拒絕應該就是我本身coding的問題了一直以來作業或project只看結果不會看內容也許是因為這樣coding才會有一堆自己看不到的問題在兩間公司都是給了我測試題收到我的code之後拒絕的但是無法從他們得知問題在哪邊所以只好來這邊求教以下先舉其中一間公司給的問題希望大家可以給點意見題目: class MyClass { public: getNICount(...){} replaceNiWithNI(...){} }; int main() { const char *testString1 = "Ni nI NI nI Ni"; const wchar_t *testString2 = L"Ni nI NI nI Ni"; // call getNiCount(...) of MyClass // call replaceNiWithNI(...) of MyClass // output : "There are X times Ni. New string: Y" } 1. implement getNiCount 和 replaceNiWithNI 兩個函式: - getNiCount 計算 testString1/2 的 Ni個數(case sensitive) - replaceNiWithNI 將 testString1/2 的Ni 替換成NI(case sensitive) 2. 兩個函式都要被呼叫 3. 印出output的string, X和Y要代換成真正的值 4. MyClass要能處理testString1(ASCII) 和 testString2(Unicode) 5. 所有c++ based的toolkit和framework都可以使用以下是我的source code: #include <iostream> #include <string> #include <sstream> #include <vector> using namespace std; class MyClass { string input; vector<size_t> posOfNi; string convert(wchar_t*); void findNi(); public: MyClass(void*, bool); int getNiCount(); string replaceNiWithNI(); }; MyClass::MyClass (void *inputString, bool wideChar) { // check the input string format and assign it to variable input if (wideChar == false) { // ASCII string input = string(reinterpret_cast<char*>(inputString)); } else { // unicode string input = convert(reinterpret_cast<wchar_t*>(inputString)); } // execute findNi() to find Nis in this string findNi(); } string MyClass::convert (wchar_t* inputString) { ostringstream stm; const ctype<char>& ctfacet = use_facet< ctype<char> >(stm.getloc()); // convert each wchar_t to char and write to the output string stream for(size_t i=0 ; i<wcslen(inputString) ; i++) { stm << ctfacet.narrow(inputString[i], 0); } return stm.str(); } // find the Nis in the input stirng and keep the record // of the position for later use void MyClass::findNi() { size_t pos = 0, foundPos; while ((foundPos = input.find("Ni", pos)) != string::npos) { posOfNi.push_back(foundPos); // Ni oppupies 2 positions so we have to set out // the next search from 2 after the found position pos = foundPos + 2; } } int MyClass::getNiCount() { return posOfNi.size(); } string MyClass::replaceNiWithNI() { string resultString = string(input); for (int i=0; i<posOfNi.size(); i++) { resultString[posOfNi[i]+1] = 'I'; // simply replace i with I } return resultString; } int main () { const char *testString1 = "Ni nI NI nI Ni"; const wchar_t *testString2 = L"Ni nI NI nI Ni"; // initialize with the two strings MyClass string1(const_cast<char*>(testString1), false); MyClass string2(const_cast<wchar_t*>(testString2), true); // print the result cout << "There are " << string1.getNiCount() << " times Ni. New string: " << string1.replaceNiWithNI() << "\n"; cout << "There are " << string2.getNiCount() << " times Ni. New string: " << string2.replaceNiWithNI() << "\n"; return 0; } 雖然在PTT上看起來有點多不過其實是個不到一百行的小程式請大家踴躍給意見先在此謝謝大家 -- ※ 發信站: 批踢踢實業坊(ptt.cc) ◆ From: 85.178.15.110

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EdisonX

10/06 08:06, , 1^F

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Bencrie

10/06 08:43, , 2^F

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ericinttu

10/06 08:57, , 3^F

10/06 08:57, 3^F