Navnit And Friends

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Navnit is a college student and there are $N$ students in his college .Students are numbered from $1$ to $N$. You are given $M$ facts that "Student $A_i$ and $B_i$".The same fact can be given multiple times .If $A_i$ is a friend of $B_i$ ,then $B_i$ is also a friend of $A_i$ . If $A_i$ is a friend of $B_i$ and $B_i$ is a friend of $C_i$ then $A_i$ is also a friend of $C_i$. Find number of wa

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solution.cppC++17

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