With our custom-made register file, we can only save a single piece of information at a time. The problem arises, however, if we want to simultaneously record two data sets.
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- RCS adopts a reverse delta approach for storing multiple versions of a file. For example, assume a file has three revisions, 1.1, 1.2, and 1.3, RCS stores the file as of version 1.3, then, the differences between 1.2 and 1.3, and the differences between 1.1 and 1.2. When a new version is created, say 1.4, the difference between 1.3 and 1.4 is computed and stored, and the 1.3 version is deleted and replaced by 1.4. Explain why RCS does not simply store the initial version (in this case 1.1) and the differences between each successive version.you need to design, analyze, and implement algorithms to read in a sequence of characters from standard input and maintain the characters in a linked list with no duplicates. When you read in a previously unseen character, insert it at the front of the list. When you read in a duplicate character, delete it from the list and reinsert it at the beginning. The program implements the well-known move-to-front strategy which is useful for caching, data compression, and many other applications where items that have been recently accessed are more likely to be re-accessed. Requirements: The program should read a sequence of characters. The program should insert unseen character at the front of the list. The program should check if the character is not in the list to be inserted at the front of the list. The program should delete a duplicate character and delete it from the list and insert it at the beginning of the list. The program should check if the character is already in the list and…You are the sysadmin for a big tech company, and you have to estimate the amount of servers you need to handle some long-running jobs. One server can handle only one job at once. One job can only be executed by one server at once. Once a server has finished executing its current job, it can be reassigned to a new job. Given an array of time intervals intervals where intervals[i] = [starti, endi], representing the start and end time for a particular job that needs to be executed, return the minimum number of servers required to run all jobs. Constraints: 1 <= intervals.length <= 104 0 <= starti < endi <= 106 Function definition for Java: public int minMeetingRooms(int[][] intervals) { // Your code here } Function definition for Python: def minMeetingRooms(self, intervals: List[List[int]]) -> int: #Your code here Announced Test Cases: Input: intervals = [[0,30],[5,10],[15,20]] Output: 2Explanation: We need one server for the job that starts at 0. For the job…
- I'm attempting to write a program that forks processes. The child opens /dev/null and then writes a lot of data to this file. Each iteration of the loop should write 10 bites to /dev/null. More specifically I want to write a 10-character array and run the loop a bunch of times like 100,000,000 iterations! In the meantime the parent will be in standby mode until the child process has finished. This is what I have so far: #include <fcntl.h>#include <unistd.h>#include <stdlib.h>#include <stdio.h> int main(){int fd;//file descriptorint fd = open("/dev/null",O_WRONLY); pid_t newPid = fork();if (newPid <0) {perror("fork() failed");exit(1); if (newPid > 0) { //Parentpid[procIdx] = newPid;} else { //Child//write 10 bytes to /dev/nullwrite(fd, "ABCDEFGHIJ", 10)exit(0);close (fd);} // Wait for processes to completefor (int i = 0; i < (I'm not sure what to put here); i++) {if (waitpid(pid[i], NULL, 0) == -1) {perror("waitpid() failed");exit(1);// process…Many PC games save player's in-game data into files so that the player can pause the current playing (oh, the weekend is over!) and resume to play later (great, weekend again!). Suppose that one PC game has a tracker of number of gold coins owned by the player and saves this data in one byte of the game file. Now Peter Pan wants to hack into the file and uses one binary file editor to change this vale to FF (in hexadecimal format). • What's the number of gold coins (in decimal format) that Peter Pan will get once he reloaded the game? . If the game designer treats this byte as signed integer, will Peter Pan be disappointed? . What's the safe value shall Peter Pan use to modify the gold coin amount in the game file? Edit View Insert Format Tools Table 12pt v Paragraph v в I Aט ToWe can generalize two-pass multiway merge-sort to use more than two passes. On the first pass, we divide the file into as many groups as we can merge in one pass. Then, recursively sort each group, using as many passes as necessary, and finally merge the sorted groups.A file of 1000 blocks is to be externally sorted, using 40 main-memory buffers. How many passes are needed? How many runs remain at the last pass? Find the correct number in the list below. a) The number of passes required is 2.b) The number of passes required is 3.c) The number of runs at the last pass is 10.d) The number of passes required is 1.
- A common implementation of sequential files on disk has each block point to its successor, which may be any block on the disk. This method requires a constant amount of time to write a block (as the file is originally written), to read the first block in the file, and to read the ith block, once you have read the 1 - 1” block. Reading the lth block therefore requires time proportional to 1. Show how by adding just one additional pointer per node, you can keep all the other properties, but allow the lth block to be read in time proportional to log I. [Hint: heaps have implicit pointers from node I to what other nodes?] Explain what the algorithm for reading the th block has in common with an algorithm for raising a number to the ith power in time proportional to log 1.You have a huge text file with words in it. Find the smallest distance (in terms of number of words) between any two words in the file. Can you optimise your solution if the procedure will be performed several times for the same file (but different pairs of words)?In the variable-length record representation, a null bitmap is used to indicate if an attribute has the null value. a. For variable length fields, if the value is null, what would be stored in the offset and length fields? b. In some applications, tuples have a very large number of attributes, most of which are null. Can you modify the record representation such that the only overhead for a null attribute is the single bit in the null bitmap.
- Implement a C program to sort a set of 4-byte float point values in ascending order using radixsort. The values are saved in a file. After sorting, the original file should still save the sorted values. Your program must access the file using memory mapping.To be done using C programming:Two identical files are given with different names to them. But some characters in the content of the second file are corrupted. Find the line number and their position where those corrupted letter exists as well as Total number of corrupted (error) letters. Examples: Input: File1.txt contains It is fun to code with C File1.txt contains It is fun to code with C# Output: Line Number : 2 Error Position:2 Total Errors:1 Steps Open two file using File pointer in read only mode. Fetch data of file in two char variable one by one until end of file. If variable encounter new line then increment line number and reset position to zero. If variables are not equal then increment number of error and print error line as well as error index.A computer runs a program to generate all the strings from a set of characters,then search a dictionary to see if each word generated is in the dictionary. Itthen writes the output to a file at a rate of 1200 words/sec all generated andchecked. How long will it take the computer to generate, check and output all thewords from a string of 5 (distinct) characters? How long if there are repeatedcharacters?