You are playing the game Minesweeper. Given an m x n grid, you must reveal the square corresponding to the next click and update the grid according to Minesweeper’s rules. The grid can contain mines (‘M’), empty squares (‘E’), or revealed squares with adjacent mine counts.
You are given a matrix where each element indicates if two cities are directly connected. Your task is to determine the number of provinces formed by the cities. A province is a group of directly or indirectly connected cities.
