HomeVolumesContestsSectionsForumsUsersPrintHelpAbout

Sections > Arithmetic > problem:


50585 - Inner Product

Guest
• Review clarifications (2)

Section problems

• 50572 - Palindromic Numbers
• 50574 - Triangular Numbers
• 50578 - Mersenne prime
• 50579 - Pentagonal Numbers
• 50581 - The roots of a quadratic eq...
• 50582 - Number of digits
• 50583 - Max of 3 numbers
• 50584 - Total invoice amount
• 50585 - Inner Product
• 50587 - Modular Conversion
• 50595 - Sum of the numbers
• 50599 - Sum of Squared Error (SSE...
• 50609 - Long division
• 50633 - The prime factors
• 50634 - Perfect numbers
• 50635 - Decomposition into terms
• 50637 - Number systems

Feedback

If you notice incorrect translations in Contester, please let author know.

Time limit 2000/4000/4000/4000 ms. Memory limit 65000/65000/65000/65000 Kb.
Prepared by Ibrahim Mesecan.

Inner Product

Shqip
Write a program for the Inner product. The program returns (also called the "dot product" or "scalar product") Inner Product of the first n elements of "a" with the first n elements of "b". This is defined as the sum of the products of corresponding terms. For example, if "a" is the array {2.2, 3.3, 4.4, 5.5, 6.6, 7.7, 8.8, 9.9} and "b" is the array {4.0, -3.0, 2.0, -1.0, 0.0, 0.0, 0.0, 0.0} , then the call innerProduct(a,8,b) would return:
(2.2)(4.0) + (3.3)(-3.0) + (4.4)(2.0) + (5.5)(-1.0) + 0 + 0 + 0 + 0 = 2.2 .

Input specification
The first line will contain a number: n, the number of numbers in the arrays where 1 < n ≤ 1000. The second and third lines will have n (space separated) floating point numbers where each number in the arrays are in the range: -10000.00 ≤ ai , bi ≤ 10000.00

Output specification
Show a floating point number with one decimal that represents the inner product of the arrays.

Input I
5
-4.0 3.8 6.0 -7.8 6.2
5.0 2.0 3.2 0.0 0.0
Output 1
6.8

Для отправки решений необходимо выполнить вход.

www.contester.ru