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Eliminació d'espais d'una cadena mitjançant Stringstream

La solució per eliminar espais d'una cadena ja està publicada aquí . En aquest article una altra solució utilitzant corrent de corda es discuteix.

Algorisme:  



estructura java 
1. Enter the whole string into stringstream. 2. Empty the string. 3. Extract word by word and concatenate to the string.

Programa 1: Utilitzant EOF . 

CPP 
// C++ program to remove spaces using stringstream #include    using namespace std; // Function to remove spaces string removeSpaces(string str) {  stringstream ss;  string temp;  // Storing the whole string  // into string stream  ss << str;  // Making the string empty  str = '';  // Running loop till end of stream  while (!ss.eof()) {  // Extracting word by word from stream  ss >> temp;  // Concatenating in the string to be  // returned  str = str + temp;  }  return str; } // Driver function int main() {  // Sample Inputs  string s = 'This is a test';  cout << removeSpaces(s) << endl;  s = 'geeks for geeks';  cout << removeSpaces(s) << endl;  s = 'geeks quiz is awesome!';  cout << removeSpaces(s) << endl;  s = 'I love to code';  cout << removeSpaces(s) << endl;  return 0; }

Sortida 
Thisisatest geeksforgeeks geeksquizisawesome! Ilovetocode

Complexitat temporal: O(n) on n és la longitud de la corda
Espai auxiliar: O(n)

Programa 2: Utilitzant getline() . 



gestor de tasques per a linux
CPP 
// C++ program to remove spaces using stringstream // and getline() #include    using namespace std; // Function to remove spaces string removeSpaces(string str) {  // Storing the whole string  // into string stream  stringstream ss(str);  string temp;  // Making the string empty  str = '';  // Running loop till end of stream  // and getting every word  while (getline(ss temp ' ')) {  // Concatenating in the string  // to be returned  str = str + temp;  }  return str; } // Driver function int main() {  // Sample Inputs  string s = 'This is a test';  cout << removeSpaces(s) << endl;  s = 'geeks for geeks';  cout << removeSpaces(s) << endl;  s = 'geeks quiz is awesome!';  cout << removeSpaces(s) << endl;  s = 'I love to code';  cout << removeSpaces(s) << endl;  return 0; } // Code contributed by saychakr13

Sortida 
Thisisatest geeksforgeeks geeksquizisawesome! Ilovetocode

Complexitat temporal: O(n) 
Espai auxiliar: O(n)