Count Negative Numbers in a Column | PHP implementation of Naive method to count of negative numbers in M [ n ] [ m ] ; Follow the path shown using arrows above ; no more negative numbers in this row ; Driver Code
< ? php function countNegative ( $ M , $ n , $ m ) { $ count = 0 ; for ( $ i = 0 ; $ i < $ n ; $ i ++ ) { for ( $ j = 0 ; $ j < $ m ; $ j ++ ) { if ( $ M [ $ i ] [ $ j ] < 0 ) $ count += 1 ; else break ; } } return $ count ; } $ M = array ( array ( -3 , -2 , -1 , 1 ) , array ( -2 , 2 , 3 , 4 ) , array ( 4 , 5 , 7 , 8 ) ) ; echo countNegative ( $ M , 3 , 4 ) ; ? >