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Problem Statement
The Subarray Sum Equals K LeetCode Solution - "Subarray Sum Equals K" states that you are given an array of integers "nums" and an integer 'k', return the total number of continuous subarrays whose sum equals to 'k'.
Example:
nums = ,
k=3
2
Explanation:
There are two subarrays whose sum is 3:
- First from index 0 to 1 i.e. ,
- Second from index 2 to 2 i.e.
nums = ,
k=3
2
Explanation:
There are two subarrays whose sum is 2:
- First from index 0 to 1 i.e. ,
- Second from index 1 to 2 i.e.
Approach
Idea:
The main idea is to use a hash map to store the frequency of prefix sums.
So, we'll iterate over the array, finding how many subarrays exist whose sum equals k and ends at the current point on each iteration.
So, if the value of the prefix sum up to this point is 'prefixSum,' the next step is to determine how many prefix sums exist whose value is (prefixSum - k). It can be found in O(1) by using the hash map, which stores the frequency of prefix sums.
Code
C++ Program of Subarray Sum Equals K:
#include
using namespace std;
int subarraySum(vector &nums, int k)
{
int n = nums.size();
www.tutorialcup.com/leetcode-solutions/subarray-sum-equal...
“Problem Bear“.
Public film for the release of bears back into the woods in Bavaria (Southern Germany). This film won the well-known „Young Directors Project“ Award 2007 in Munich.
The background: When „Bruno“ the bear got lost on his way from Italy to Germany, he became a „problem bear“ for the government, for the public he became a „cult bear“. Unfortunately the government had the bear killed. This film calls for the release of bears back into the wild in Germany.
The leaves seems a little curled: is it a problem and what do I need to do about it?
Bought from a garden centre, planted in this planter a couple of weeks ago.
Location: Tawa, Wellington, New Zealand.
Date: October 9th (spring)
You can't just get a bike, you have to get a bike rack, a hitch for your VW, new exhaust hangers for your VW b/c the muffler is now hanging on the hitch and vibrating so loud that it sounds like you're driving a Honda CRX with an "Under Construction" decal across the windshield and a primered body kit. Annnnnnnd, you need a camelback b/c it's hot out there and a 20 oz water bottle doesnt cut it, they aren't cheap! Let's not forget that every biker you pass is on a damn Gary Fisher, and you're like "I should've saved up more and gone with at least a Wahoo." Why can't I ever pick an inexpensive hobby?
Bilder der Ethikwoche der FH Meschede.
Photos of the "week of business ethics", a series of workshops, presentations and discussion rounds at the University of Applied Sciences in Meschede, Germany.
Ein Student der FH SWF Meschede zeigt das "ethical problem" bildhaft und textlich auf.
Is anyone else having this problem?? EVERY time I get up to do something, THIS is what I find when I get back. Sheesh!! How am I supposed to work like this??
Insper - Seminário Internacional - Promovendo o pensamento crÃtico e a resolução de problemas nos alunos - 07/10/09 - Foto: Rubens Chiri/Perspectiva
We've got pigeons nesting in the soffit box directly outside our bedroom window. It's not much of a problem apart from the scritching and scratching at night. Anyway I called a guy and they're going to try and come and take a look over the next couple of days. He mentioned removing the birds, blocking the opening, etc. I don't actually want to know what's involved.
Ok, so as I'm talking to this guy on the phone, I'm standing outside the front explaining what I see, and there in the little alleyway at the side of our house is this baby pigeon... just standing there! Ok, what?! It must have fallen out of the soffit box and is now hanging out in our side entrance.
A friend suggested that we're responsible for it now, and we should take it in and raise it by hand. Um, a minute ago we were on the phone to a pigeon fixer... I'm not sure it's in my constitution to raise a pigeon as my own. I say let nature take its course.
Update: we've provided a small box as refuge for the chick in the alleyway... we shall see whether it's in our bed by tonight.
ok; i have pictures with over 100 views. and one comment. |: question: is it that bad to want some credit? i like you all looking at my pictures but i loveeee comments. and it just bothers me x]
The HTC Hero normally comes with 7 screens, but I only ever needed 5. LauncherPro solves this problem by allowing you anything from 1 to 7 homescreens, along with all the other customisation you see here.
This is the page that I will probably go to the most after the Main Screen, it houses my calendar agenda list and the weather and news. I didn't originally have this widget - it only features on the Nexus One. I managed to find a site where I could download the APK onto my phone and get the widgety goodness.
Links:
Pure Calendar: www.appbrain.com/app/org.koxx.pure_calendar
Genie Widget: www.sizzledcore.com/2009/12/29/genie-widget-from-nexus-on...
Solving Problems…our life is mainly trying to figure out how to be happy and make the ones we love happy too…
For me it’s one of the most important goals…to help improve the life of the ones we love and care…because for me, in a sense, we end up by improving ours too..
IA Health Talk is an initiative by Intelligent Ageing to spread awareness about health-related problems and provide solutions for health issues and eradicate them from their roots with functional medicine practice. For more details, visit: intelligentageing.in/
Sprüche, Witze, Gespräche und lustige Videos. NIKLAKO.COM - Nicht klar kommen, aber mit Stil... #NIKLAKO #Sprüche #Witze #Gespräche #Videos - niklako.com/
I know A (it's actually 0,0) I also know B, C, and theta. C is clamped between A and B.
I need to know at what distance (x) along the line at y=C would a point make a triangle with the angle theta and the opposite side AB.
Should have paid more attention in school.
UPDATE: So @brucehoult found a good solution. His Summary:
The trick here is that, no matter what theta is, as you vary C from 0 to B the solution point lies on a cicle. When theta is 90 degrees, the center of the circle lies on the line between A and B, but for other values of theta it doesn't, so you need to find it.
See Bruce's C code solution: hoult.org/bruce/frampton.cpp
This is a problem I never saw in the text books. The solution means that the camera in Chopper 2 can automatically zoom in and out (translate in and out really) when the playing area becomes shorter or taller, but still display exactly the area where everything is happening. Looks great.
Stay in school!
by Alfredo Fernandes
Alfi Art Production, Divar
41st Tiatr Competition A group of Kala Academy supported by TAG
13.10.2015
more here
joegoauk-tiatr.blogspot.in/2015/10/41st-tiatr-competition...
Tracila Gonsalves on rocking Chair
Mathew De Souza
Seen in the Jardin du Luxembourg, 6ème arrondissement, Paris
Image shot with Nikon D800 with Panoramique AJ Pipon Paris 13cm Foyer 13x18 (fitted in plastic M42 lens cap, M42 36–90mm focussing helicoid and a M39 to Nikon F adapter.— Part of the Antique Camera Simulator project.
The AJ Pipon Panoramique f13cm lens is very small, which creates a very dark image in the viewfinder of the Nikon D800. As a result focussing the lens in low light, incl. overcast sky, is very difficult. This is exacerbated by the fact that the focussing helicoid of course allows movement beyond infinity (while 'normal' lenses have a infinity lock); thus even focussing on infinity poses problems.
© Dirk HR Spennemann 2013, All Rights Reserved
Jerry the Gnome has decided to jump off the counter. If the counter is 1.5 meters high, at what speed will Jerry smash to the floor? Jerry's mass is 0.35kg
Hay TV o pantallas de LCD o plasma TFT etc... que tienen un tubo fluorescente en su interior que es el encargado de iluminar la pantalla en si misma, ese tubo se alimenta con alta tensión y es muy frecuente ver como se dessuelda el conector por donde le llega la corriente.
Greenpeace a réalisé le 28 janvier une action chez un concessionnaire VW, pendant l'Autofestival 2012, pour mettre en exergue la politique désastreuse en matière de climat du groupe Volkswagen. En 2010 seulement 6% des ventes de VW concernaient des modèles moins polluants.
La prochaine fois que vous verrez des publicités vantant les mérites écologiques du constructeur allemand, regardez-les avec davantage de circonspection. VW est-il le constructeur le plus vert de la planète ? Non, tant qu'il ne généralisera pas les technologies qui permettraient d'émettre moins de CO2 à l'ensemble de ses modèles et qu'il ne cessera pas son lobbying pour empêcher des normes plus ambitieuses pour la protection du climat.
© Christophe Hebting/Greenpeace