void check(Traversal &t) {
Ans got(t.event(), t.vertex(), t.edge());
if (!isGood_ || current_>=ans_.size() || got!=ans_[current_]) {
if (isGood_) {
for (size_t i=0; i<current_; ++i) {
std::cout <<" correct: " <<std::setw(3) <<i <<toString(ans_[i]) <<"\n";
}
}
if (current_ >= ans_.size()) {
std::cout <<" FAILED: past end of answer\n";
std::cout <<" got: " <<toString(got) <<"\n";
} else if (got!=ans_[current_]) {
std::cout <<" FAILED: " <<std::setw(3) <<current_ <<toString(ans_[current_]) <<"\n";
std::cout <<" got: " <<toString(got) <<"\n";
} else {
std::cout <<" correct: " <<std::setw(3) <<current_ <<toString(ans_[current_]) <<"\n";
}
isGood_ = false;
}
++current_;
}
