Ivy, Vivian, and Candy are playing the truth or lie game. The rule is: the person who picks the truth card can only tell the truth, and the person who picks the lie card must tell a lie.  \textbf{Ivy said: "Vivian and Candy lied."}  \textbf{Vivian said: "I did\textquotesingle t lie."}  \textbf{Candy said: "Vivian lied."}  How many of them told the truth? How many of them told a lie?~\hspace{0pt} 
Overseas Competition->Knowledge Point->Combinatorics->Logical Reasoning
Vivian and Candy told contradictory information, so one of them told the truth and the other one told the lie. Therefore, Ivy has definitely told the lie. So two people told the lie, and one people told the truth. 