Help me write c language code

Symmetric Matrix Easy AC Ratio: 23.6% (467/1982) #Loop #Array Given a square matrix, please check whether it is a symmetric matrix. A matrix is a symmetric matrix if and only if the main diagonal of the matrix is its axis of symmetry. The following matrix is a symmetric matrix. 15 20 8 101 120 8 12 4 18 127 111 110 4 11 21 INPUT AND OUTPUT EXAMPLE Input The First line, containing a positive integer n, indicates the matrix is n by n. The following n lines contain n integers which represent the matrix. n