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766.java
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766.java
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__________________________________________________________________________________________________
sample 1 ms submission
class Solution {
public boolean isToeplitzMatrix(int[][] matrix) {
for (int i = 0; i < matrix[0].length; i++) {
if (!check(matrix, matrix[0][i], 0, i)) {
return false;
}
}
for (int i = 0; i < matrix.length; i++) {
if (!check(matrix, matrix[i][0], i, 0)) {
return false;
}
}
return true;
}
private boolean check(int[][] matrix, int expectValue, int row, int col) {
if (row >= matrix.length || col >= matrix[0].length) {
return true;
}
if (matrix[row][col] != expectValue) {
return false;
}
return check(matrix, expectValue, row + 1, col + 1);
}
}
__________________________________________________________________________________________________
sample 40364 kb submission
class Solution {
public boolean isToeplitzMatrix(int[][] matrix) {
for(int i = 1; i< matrix.length; i++)
{
for(int j= 1; j< matrix[0].length; j++)
{
if(matrix[i][j] != matrix[i-1][j-1])
return false;
}
}
return true;
}
}
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