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Could somebody help with these two exercises please
Exercise 1:
Compatible intervals Given n open intervals (a1, b1), (a2, b2), . . . , (an, bn) on the real line, each representing start and end times of some activity requiring the same resource, the task is to find the largest number of these intervals so that no two of them overlap.
Investigate the three greedy algorithms based on
For each of the three algorithms, either prove that the algorithm always yields an optimal solution or give a counterexample showing this not to be the case.
Exercise 2:
Rumor spreading problem: There are n people, each in possession of a different rumor. They want to share all the rumors with each other by sending electronic messages. Assume that a sender includes all the rumors he or she knows at the time the message is sent and that a message may only have one addressee.
Question- If the product produce when styrene is reacted with sulfuric acid in the presence is 1-phenylethanol. What role did sulfuric acid play in this reaction
An aqueous solution containing 7%w/w of sodium carbonate is fed to the reactor at a rate of 100 kg min.1, where it mixes with a gas stream containing 70 mol% CO2 and 30 mol% air. All of the sodium carbonate in the feed reacts to form sodium bicarbona..
If we inject 120.0 mL of liquid helium and allow the entire system to warm to room temperature (25°C), what is the pressure inside the bottle
Which of the following is/are network covalent compounds A. sodium chloride B. diamond C. quartz (silicon dioxide) D. both B & C
lead nitrate is needed to precipitate all of the chloride ion in a 10.00-mL sample of an unknown. What is the molarity of the chloride ion in the student's unknown?
Problem- Determine the molarity of a solution containing 4 moles of Li2SO4 in 2L solution, 2.4 moles of CuSO4 in 1.5L solution, and 3.7 moles of NaOh in 4.2L solution.
calculate the osmotic pressure in torr of 6.00 L of an aqueous 0.889 m solution at 30.°c, if the solute concerned is totally ionized into three ions.
The pressures ranges between 0.2 bar and 60 bar. Determine the net work produced and the efficiency of the cycle?
Benzoic acid is much stronger than the weak acid phenol consequently benzoic acid reacts with the weak base bicarbonate while phenol does not. using a schematic show a scheme for the total separation of the three compounds in a mixture of benzoic ..
In ethanol, with an absorbance of 1.210 (no units) at a wavelength of 530 nm. At this wavelength, the extinction coefficient of rhodamine 6G in EtOH is 116,000M^-1 cm^-1. If I have a 0.100 M solution of rhodamine 6G, what pathlength cell will be n..
Does the product xyz necessarily vanish when integrated over a a) cube, b) tetrahedron, c) hexagonal prism, each centered on origin?
An electrophilic addition is? Answer . a) An addition to an alkene initiated by a nucleophilic attack. b) An addition to an alkene initiated by an electrophilic attack
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