Example 1
Example 2
n == grid.lengthn == grid[i].length2 <= n <= 100grid[i][j] is either 0 or 1.For all i grid[i][i] is 0.For all i, j that i != j, grid[i][j] != grid[j][i].The input is generated such that if team a is stronger than team b and team b is stronger than team c, then team a is stronger than team c.Example 1
Example 2
n == grid.lengthn == grid[i].length2 <= n <= 100grid[i][j] is either 0 or 1.For all i grid[i][i] is 0.For all i, j that i != j, grid[i][j] != grid[j][i].The input is generated such that if team a is stronger than team b and team b is stronger than team c, then team a is stronger than team c.