text: Given an n x n square matrix , find sum of all sub | size k x k Size of given matrix ; A simple function to find sum of all sub - squares of size k x k in a given square matrix of size n x n ; k must be smaller than or equal to n ; row number of first cell in current sub - square of size k x k ; column of first cell in current sub - square of size k x k ; Calculate and print sum of current sub - square ; Line separator for sub - squares starting with next row ; Driver Code
code: n = 5 NEW_LINE def printSumSimple ( mat , k ) : NEW_LINE INDENT if ( k > n ) : NEW_LINE INDENT return NEW_LINE DEDENT for i in range ( n - k + 1 ) : NEW_LINE INDENT for j in range ( n - k + 1 ) : NEW_LINE INDENT sum = 0 NEW_LINE for p in range ( i , k + i ) : NEW_LINE INDENT for q in range ( j , k + j ) : NEW_LINE INDENT sum += mat [ p ] [ q ] NEW_LINE DEDENT DEDENT print ( sum , end = " ▁ " ) NEW_LINE DEDENT print ( ) NEW_LINE DEDENT DEDENT if __name__ == " _ _ main _ _ " : NEW_LINE INDENT mat = [ [ 1 , 1 , 1 , 1 , 1 ] , [ 2 , 2 , 2 , 2 , 2 ] , [ 3 , 3 , 3 , 3 , 3 ] , [ 4 , 4 , 4 , 4 , 4 ] , [ 5 , 5 , 5 , 5 , 5 ] ] NEW_LINE k = 3 NEW_LINE printSumSimple ( mat , k ) NEW_LINE DEDENT