Snippets for competitive programming for manipulating inputs

intToString.cpp

// convert an integer to string
string intToString (int a){
  ostringstream os(a);
  os<<a;
  return os.str();
}

stringToInt.cpp

// convet a string to a single int
int stringToInt(string s){
  int a;
  istringstream is(s);
  is>>a;
  return a;
}

stringtointvector.cpp

// Comvert a string input to a vector of int
// inputs like '1 3 4 5 6 7 8'
void stringToInt(string s, vector <int> & a){
  int temp;
  istringstream is(s);
  while(is>>temp)
    a.push_back(temp);
}