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766_Toeplitz_Matrix.java

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class Solution {

public boolean isToeplitzMatrix(int[][] matrix) {

// Start from second line and column

for (int r = 1; r < matrix.length; ++r)

for (int c = 1; c < matrix[0].length; ++c)

// Check step by step

if (matrix[r-1][c-1] != matrix[r][c])

return false;

return true;

}

}