class Solution { //Function to add two matrices. static int[][] sumMatrix(int A[][], int B[][]) { int n = A.length, m = A[0].length; int res[][] = new int[0][0]; //Check if two input matrix are of different dimensions if(n != B.length || m != B[0].length) return res; res = new int[n][m]; for(int i=0;i<n;i++) for(int j=0;j<m;j++) res[i][j] = A[i][j] + B[i][j]; return res; } }
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