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How to solve task 6 of OGE computer science. |
The Unified State Exam in Informatics consists of 27 tasks. Task 6 tests the skills of analysis and construction of algorithms for various performers. The student must be able to compose algorithms from given commands, as well as check sequences for compliance with the algorithms. Here you can learn how to solve task 6 of the Unified State Exam in computer science, as well as study examples and solutions based on detailed tasks. All USE tasks all tasks (107) USE task 1 (19) USE task 3 (2) USE task 4 (11) USE task 5 (10) USE task 6 (7) USE task 7 (3) USE task 9 (5) Unified State Examination task 10 (7) Unified State Examination task 11 (1) Unified State Examination task 12 (3) Unified State Examination task 13 (7) Unified State Examination task 16 (19) Unified State Examination task 17 (4) Unified State Examination without number (9)
The performer Kvadrator has two commands: add 3 and squareThe performer Kvadrator has two teams, which are assigned numbers: 1 - add 3; 2 - square it. The first of them increases the number on the screen by 3, the second raises it to the second power. The performer works only with natural numbers. Create an algorithm for obtaining number B from number A, containing no more than K commands. In your answer, write down only the command numbers. If there is more than one such algorithm, then write down any of them.
The decipherer needs to recover the damaged message fragmentThe decryptor needs to restore the damaged message fragment, consisting of 4 characters. There is reliable information that no more than five letters were used (A, B, C, D, E), with one of the symbols in third place... One of the letters in fourth place... One of the letters in first place ... On the second - ... Additional information has appeared that one of four options is possible. Which? The task is included in the Unified State Examination in computer science for grade 11 under number 6.
There are two windows on the screen, each of which contains a numberThere are two windows on the screen, each of which contains a number. The Adder performer has two commands, which are assigned numbers: 1 – write the sum of numbers in the first window; 2 – write the sum of numbers in the second window. By executing the first of them, the Adder adds the numbers in the windows and replaces the number in the first window with this sum, and by executing the second, it adds the numbers and replaces the number in the second window with this sum. Write down the order of commands in the program for obtaining from a pair of numbers A and B a pair of numbers C and D, containing no more than K commands, indicating only the command numbers. The task is included in the Unified State Examination in computer science for grade 11 under number 6.
The Calculator performer has two teams, which are assigned numbersThe Calculator performer has two commands, which are assigned numbers: 1 – add 2, 2 – multiply by 3. By executing the first of them, the Calculator adds 2 to the number on the screen, and by executing the second, it triples it. Write down the order of commands in the program for obtaining number B from A, containing no more than K commands, indicating only the command numbers. The task is included in the Unified State Examination in computer science for grade 11 under number 6.
Chains of characters (strings) are created according to the following ruleChains of characters (strings) are created according to the following rule. The first line consists of... Each of the subsequent chains is created by such actions... Here are the first 4 lines created by this rule. What character is in the K line in the Nth place (counting from left to right)? The task is included in the Unified State Examination in computer science for grade 11 under number 6. Analysis of task 6 of the Unified State Exam 2017 in computer science from the demo version project. This is a task of a basic level of difficulty. Estimated task completion time is 4 minutes. Content elements tested: formal execution of an algorithm written in natural language or the ability to create a linear algorithm for a formal performer with a limited set of commands. Content elements tested on the Unified State Exam: Formalization of the concept of an algorithm. Construction of algorithms and practical calculations. Task 6:The machine receives a three-digit number as input. Based on this number, a new number is constructed according to the following rules. Answer: ________ Analysis of task 6 of the Unified State Exam 2017:Obviously, the result 1711 came from two numbers 17 and 11. Now we find the smallest three-digit number. Since we are looking for the smallest number, we will start with the smallest sum (11) in order to get the smallest first digit. 11 - 9 = 2. Thus, the number 11 is obtained as the sum of 2 and 9: 2 + 9 = 11 . The number 17 is obtained as the sum of 9 and 8: 9 + 8 = 17 . Now we compose the required smallest three-digit number and get 298. Checking 2 + 9 = 11 and 9 + 8 = 17 The lesson is devoted to how to solve task 6 of the Unified State Exam in computer science The 6th topic - “Analysis of algorithms and executors” - is characterized as tasks of a basic level of complexity, completion time - approximately 4 minutes, maximum score - 1 Performer for squaring, division, multiplication and additionLet's take a closer look at what might be useful for solving task 6.
Checking a numerical sequence for compliance with the algorithm
Now we will consider specific standard exam options in computer science with an explanation of their solutions. Analysis of task 6Solving tasks 6 of the Unified State Exam in computer science for the topic Performers6_1: The performer GRASSHOPPER lives on the number line. The initial position of the GRASSHOPPER is a point 0 . GRASSHOPPER command system:
Which least number of times the command must appear in the program "Back 3" so that the GRASSHOPPER is at the point 21 ? ✍ Solution: Let's consider two solutions. ✎ 1st solution:
Result: 3 ✎ 2nd solution:
Result: 3 If anything remains unclear, we suggest you take a look video with solution analysis:
6_2: There is a performer, the Grasshopper, who lives on the number line. Grasshopper command system:
Variables N And M can take any positive integer value. It is known that the Grasshopper executed the program from 50
teams in which teams Back 2 12 more than teams Forward 3. There were no other teams in the program. ✍ Solution:
Result: Back 5 We invite you to watch the video analysis of task 6:
Unified State Exam 6_3:
The first of these commands increases the number on the screen by 1, the second - squares it. The program for the Quad performer is a sequence of command numbers. For example, 22111 is a program square square add 1 add 1 add 1 This program converts the number 3 V 84 . Record a program for the performer Quad, which converts the number 5 to the number 2500 and contains at most 6 commands If there is more than one such program, then write down any of them. ✍ Solution:
Result: 11212 You can watch the video of the solved 6th task of the Unified State Exam in computer science: 6_4. Option No. 11, 2019, Computer Science and ICT Model exam options, Krylov S.S., Churkina T.E. From the performer Calculator two teams assigned numbers:
By performing the first of them, the Calculator adds 3 to the number on the screen, and by performing the second, it multiplies it by 5. Write down the order of commands in the program that converts number 3 to number 24 and contains no more than four commands Enter only command numbers. ✍ Solution:
Answer: 2111 6_5: An executor that works with positive single-byte binary numbers has two instructions, which are assigned numbers:
By performing the first of them, the performer shifts the number one binary digit to the right, and by performing the second, he adds 4 to it. The performer began calculations with the number 191 and executed the chain of commands 112112 . Write the result in decimal notation. ✍ Solution: ✎ 1 way:
Result: 16 ✎ Method 2:
Result: 16 For a detailed explanation, watch the video:
6_6: Task 6 Unified State Exam in Computer Science 2017 FIPI option 19 (Krylov S.S., Churkina T.E.): The Adder-Multiplier performer has two teams, which are assigned numbers:
The first one increases the number on the screen by 3 , the second multiplies it by X. The program for the performer is a sequence of command numbers. It is known that the program 12112 converts number 3 in number 120 . Determine the value X, if it is known that it is natural. ✍ Solution:
That's right. Result: 4 A more detailed analysis of the lesson can be seen in the video of the Unified State Exam in Computer Science 2017:
Solving tasks for the topic Checking a number sequence (Automatic)6_7: Unified State Exam in Computer Science task 6 from the site of K. Polyakov (task number P-06): The machine receives a four-digit number as input. Based on this number, a new number is constructed according to the following rules.
Example. Original number: 3165. Sums: 3 + 1 = 4; 6 + 5 = 11. Result: 114. Specify least number, as a result of processing which, the machine will display the number 1311.
✍ Solution: Result: 2949 The process of solving this 6th task is presented in the video tutorial:
6_8: Task 6 Unified State Exam in Computer Science 2017 FIPI (Krylov S.S., Churkina T.E.) option 13: The machine receives a four-digit number as input. A new number is constructed from it according to the following rules:
Example: Original number: 7531. Sums: 7+5=12; 5+3=8; 3+1=4. Result: 4812. Specify the largest number that the machine will produce as a result of processing 2512 . ✍ Solution: Result: 9320
6_9: Task 6 Unified State Examination in Informatics 2017 FIPI (Ushakov D.M.) option 2: The machine receives two two-digit hexadecimal numbers as input. These numbers contain all the digits do not exceed the number 6(if the number contains a number greater than 6, the machine refuses to work). Using these numbers, a new hexadecimal number is constructed according to the following rules:
Example: Initial numbers: 25, 66. Bitwise sums: 8, B. Result: B8. Which of the proposed numbers can be the result of the machine? Options: ✍ Solution: Result: B.C. A detailed solution to this 6th task can be viewed in the video:
6_10: 6 task of the Unified State Exam. Task 4 GVE Grade 11 2018 FIPI The machine receives the input two two-digit hexadecimal numbers. These numbers contain all the digits do not exceed the number 7(if the number contains a number greater than 7, the machine refuses to work). Using these numbers, a new hexadecimal number is constructed according to the following rules. 1.
Two hexadecimal numbers are calculated: the sum of the most significant digits of the resulting numbers and the sum of the least significant digits of these numbers. Example. Initial numbers: 66, 43. Bitwise sums: A, 9. Result: 9A. Determine which of the proposed numbers can be the result of the machine. Options: ✍ Solution: Result: 1 Solution 4 of the 11th grade GVE task, watch the video:
Solving a problem about an algorithm that constructs the number R6_11: Task 6 Unified State Exam in Computer Science 2017 FIPI option 2 (Krylov S.S., Churkina T.E.): N R in the following way:
The record obtained in this way is a binary record of the desired number R. Enter the smallest number N, for which the result of the algorithm is greater 129 . In your answer, write this number in the decimal number system. ✍ Solution:
Result: 8 For a more detailed analysis, we suggest watching the video of the solution to this 6th task of the Unified State Exam in computer science:
6_12: 6 task. Demo version of the Unified State Exam 2018 computer science: The input of the algorithm is a natural number N. The algorithm constructs a new number from it R in the following way.
The record obtained in this way (it has two digits more than in the record of the original number N) is a binary record of the desired number R. Specify the minimum number R, which exceeds the number 83
and may be the result of this algorithm. In your answer, write this number in the decimal number system. ✍ Solution:
Result: 86 For a detailed solution to this 6th task from the demo version of the Unified State Exam 2018, watch the video:
6_13: Analysis of the 6th task of the Unified State Exam option No. 1, 2019 Computer science and ICT Typical exam options (10 options), S.S. Krylov, T.E. Churkina: The input of the algorithm is a natural number N. The algorithm constructs a new number from it R in the following way: 1.
Constructing a binary number N. For example, the binary notation 1001 of the number 9 would be converted to 100101, and the binary notation 1100 of the number 12 would be converted to 110000. The record obtained in this way (it contains two digits more than in the record of the original number N) is a binary representation of a number R- the result of this algorithm. Specify the maximum number R, which less than 100 and may be the result of this algorithm. Write this number down in your answer. in decimal number system. ✍ Solution:
Result: 96 We invite you to watch the video solution:
Video fragment from a consultation session (consultation before the computer science exam) in preparation for the OGE. Analysis of task number 6 from the OGE on the topic Algorithm for a specific performer with a fixed set of commands. Algorithm executors. In the video clip above you will find solution to task number 6 from OGE in computer science Task 6: Performer The draftsman moves on the coordinate plane, leaving a trace in the form of a line. The Draftsman can issue the Move to (a, b) command (where a, b are integers), which moves the Draftsman from a point with coordinates (x, y) to a point with coordinates (x + a, y + b). If the numbers a, b are positive, the value of the corresponding coordinate increases; if negative, it decreases. V1. The draftsman was given the following algorithm to execute: Repeat 2 times After completing this algorithm, the Draftsman returned to the starting point. What command should be put instead of the command Team1? V2. The draftsman was given the following algorithm to execute: Repeat 3 times This video explains the solution to the sixth task OGE in computer science. The main accents are placed and it is shown what is worth paying attention to and what is not so important. Options are being considered Performer Draftsman, which are most often found in the exam computer science. In practice, it is shown how to solve these problems using three simple and understandable steps. Only three problems were solved in detail with explanations. The first problem is classic for this assignment. It introduces the basic concepts in great detail and shows how to master it effectively and quickly. The second task is solved in the first person. This approach brings the viewer as close as possible to the atmosphere of a real exam and helps to understand what specific actions need to be taken to get the coveted score. The third task can be considered non-standard, although all techniques and methods remain the same. To consolidate the material covered Don’t forget to practice in the online testing system on my website! Link under video Happy exams!
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