“Problema de celebridades GFG 7-18-21” Código de respuesta

Problema de celebridades GFG 7-18-21

Input:
N = 3
M[][] = {{0 1 0},
         {0 0 0}, 
         {0 1 0}}
Output: 1
Explanation: 0th and 2nd person both
know 1. Therefore, 1 is the celebrity.