tell cin to stop reading at newline

by

Use getline and istringstream:

#include <sstream>
/*....*/
vector<int> getclause() {
  char c;
  vector<int> cl;
  std::string line;
  std::getline(cin, line);
  std::istringstream iss(line);
  while ( iss >> c) {    
    cl.push_back(c);
  }
  return cl;
}

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