human
What is a code to queries to count groups of N students possible having sum of ratings within given range and the other steps required given the following:
Queries to count groups of N students possible having sum of ratings within given range | Function to count number of ways to get given sum groups.
Initialise dp array.
Mark all 1 st row values as 1 since the mat [ 0 ] [ i ] is all possible sums in first row.
Fix the ith row.
Fix the sum.
Iterate through all values of ith row.
If sum can be obtained.
Find the prefix sum of last row.
Traverse each query.
No of ways to form groups.
Driver Code.
Given N batches and K students.
Given ratings.
Function Call"
Solution in Python:
assistant
#Here is code to queries to count groups of N students possible having sum of ratings within given range and the other steps required.
 def numWays ( ratings , queries , n , k ) :
	dp = [ [ 0 for i in range ( 10002 ) ] for j in range ( n ) ] ;
	for i in range ( k ) :
		dp [ 0 ] [ ratings [ 0 ] [ i ] ] += 1 ;
	for i in range ( 1 , n ) :
		for sum in range ( 10001 ) :
			for j in range ( k ) :
				if ( sum >= ratings [ i ] [ j ] ) :
					dp [ i ] [ sum ] += dp [ i - 1 ] [ sum - ratings [ i ] [ j ] ] ;
	for sum in range ( 1 , 10001 ) :
		dp [ n - 1 ] [ sum ] += dp [ n - 1 ] [ sum - 1 ] ;
	for q in range ( len ( queries ) ) :
		a = queries [ q ] [ 0 ] ;
		b = queries [ q ] [ 1 ] ;
		print ( dp [ n - 1 ] [ b ] - dp [ n - 1 ] [ a - 1 ] , end = " ▁ " ) ;
if __name__ == ' _ _ main _ _ ' :
	N = 2 ;
	K = 3 ;
	ratings = [ [ 1 , 2 , 3 ] , [ 4 , 5 , 6 ] ] ;
	queries = [ [ 6 , 6 ] , [ 1 , 6 ] ] ;
	numWays ( ratings , queries , N , K ) ;