766. toplitz matrix

766. Toplitz matrix

To give you one m x n Matrix matrix . If this matrix is a Toeplitz matrix , return true ; otherwise , return false .

If every diagonal of a matrix from top left to bottom right has the same element , So what is the matrix Toplitz matrix .

Example 1：

Input ：matrix = [[1,2,3,4],[5,1,2,3],[9,5,1,2]]
Output ：true
explain ：
In the above matrix , Its diagonal is :
“[9]”, “[5, 5]”, “[1, 1, 1]”, “[2, 2, 2]”, “[3, 3]”, “[4]”.
All the elements on each diagonal are the same , So the answer is True .

Example 2：

Input ：matrix = [[1,2],[2,2]]
Output ：false
explain ：
Diagonals “[1, 2]” The elements on are different .

The solution code is as follows ：

bool isToeplitzMatrix(int** matrix, int matrixSize, int* matrixColSize){
    
    int i;
    int n=matrixSize;
    int m=matrixColSize[0];

    printf("%d %d",n,m);
    for(i=0;i<m;i++){
    
        int a=matrix[0][i];
        int x=0;
        int y=i;
        while(x+1<n&&y+1<m){
    
            x=x+1;
            y=y+1;
            if(matrix[x][y]!=a){
    
                return false;
            }
        }
    }

     for(i=0;i<n;i++){
    
        int a=matrix[i][0];
        int x=i;
        int y=0;
        while(x+1<n&&y+1<m){
    
            x=x+1;
            y=y+1;
            if(matrix[x][y]!=a){
    
                return false;
            }
        }
    }
return true;
}