Contests

Gnit Weekly Challenge: Beginner Quantum Mechanics Special! ## Important Notes This contest is conducted in English. This is a 30-minute individual competition. Please submit your answers to each problem within the time limit. ### Difficulty Level This contest is set at a difficulty level comparable to the Gnit Beginner Open (GBO). It is designed to be accessible and enjoyable for a wide range of participants, including middle and high school students, those with a background in the humanities, and, of course, those with a background in the sciences. ### Submitting Answers * Please submit your answers in the format specified in each problem description. * Gnit uses an exact-match system for natural number answers; therefore, alternative answers resulting from different rounding methods will not be accepted. * While physics problems often require rounding based on significant figures, please do not round any intermediate or final values ​​in this contest unless explicitly instructed to do so. * You may submit an answer for each problem up to 10 times. Submissions beyond the 10th attempt will not be accepted. * To prevent participants from guessing the correct answer by plugging in arbitrary values, some numerical values ​​have been intentionally made complex. The use of a calculator is strongly recommended. ### Permitted Resources * Calculators * Scratch paper for calculations ### Prohibited Actions The following actions are strictly prohibited: * Using generative AI tools. * Consulting textbooks, reference materials, or performing web searches to find solutions. * Consulting with others. * Sharing solutions, hints, or answers with others. * Participating via multiple accounts, impersonation, or any other form of dishonest participation. If any form of cheating is discovered, your results may be invalidated in accordance with our Terms of Service. ### About This Contest This is a "Beginner" edition of the Gnit Weekly Challenge, which is held every Wednesday. The contest consists of 4 problems in total, with a maximum difficulty level of **5** for this Gnit Weekly Challenge Beginner edition. We hope you find this useful for review or as a warm-up exercise! ### About "Rated" / "Unrated" This contest is "Unrated." ### Problem Setters * admin02 ### Survey For this contest, the first two problems were created by admin02 (@seed_script), while the latter two were created by Gemini 3.6 Flash. I would appreciate it if you could share your feedback—for instance, which set of problems you found easier to solve. Personally, I could barely understand the problems generated by the AI.

## Important Notes This contest is **not** available in English. This is a 30-minute individual contest. Please submit your answers to each problem within the time limit. ### Difficulty Level The difficulty level is roughly equivalent to the Gnit Beginner Open (GBO) plus a little extra. While primarily aimed at junior high and high school students, anyone is welcome to participate. The last two problems are quite difficult. ### Answers * Please submit answers in the format specified in the problem statement. * Gnit uses exact matching based on natural numbers; therefore, alternative answers resulting from different rounding methods are not accepted. * While values ​​in physics are sometimes rounded to match significant figures, please do not round intermediate calculations or final results in this contest unless specifically instructed to do so. * You may submit answers up to 10 times per problem. Submissions beyond the 10th attempt will not be accepted. * Numerical values ​​may be intentionally complex to prevent guessing the correct answer by substituting arbitrary values. The use of a calculator is strongly recommended. ### Permitted Items * Calculator * Scratch paper ### Prohibited Actions The following actions are prohibited: * Using generative AI tools * Consulting textbooks, reference books, or web searches for solutions * Consulting others * Sharing solutions, hints, or answers with others * Participating with multiple accounts, impersonation, or other forms of cheating If cheating is detected, your results may be invalidated in accordance with the Terms of Service. ### About This Contest This is the "Beginner" edition of the Gnit Weekly Challenge, held every Wednesday. It consists of 5 problems in total, with a maximum difficulty level of **5** for the Gnit Weekly Challenge Beginner series. We hope you use this contest for review or as a warm-up. ### Rated / Unrated Status This is an unrated contest. ### Problem Setters * admin02

## Contest Rules This contest is a 90-minute individual contest. ### Submissions * Submit your answers in the format shown in each problem statement. * Gnit checks answers by exact match with a natural number. Because of this, different answers caused by rounding are not accepted. * In physics, you may often round values based on significant figures. In this contest, do not round intermediate values or final results unless the problem statement tells you to do so. * You can submit an answer up to 10 times for each problem. The 11th and later submissions will not be accepted. * Some numbers may be complex to prevent guessing. Please use a calculator. ### You may use * A calculator * Scratch paper ### You may not use * AI tools * Textbooks or reference books * Web search * Help from other people * Sharing solutions, hints, or answers with others * Multiple accounts, impersonation, or any other unfair method If cheating is found, your score may become invalid under the Terms of Service. ### Rated / Unrated This contest will be Rated only if there are 20 or more Rated participants. If there are 19 or fewer Rated participants, the contest will be Unrated.

## Important Notes This contest is **not** available in English. This is a 30-minute individual contest. Please submit your answers to each problem within the time limit. ### Difficulty Level The difficulty level is roughly equivalent to the Gnit Beginner Open (GBO) plus a little extra. While primarily aimed at junior high and high school students, anyone is welcome to participate. The last two problems are quite difficult. ### Answers * Please submit answers in the format specified in the problem statement. * Gnit uses exact matching based on natural numbers; therefore, alternative answers resulting from different rounding methods are not accepted. * While values ​​in physics are sometimes rounded to match significant figures, please do not round intermediate calculations or final results in this contest unless specifically instructed to do so. * You may submit answers up to 10 times per problem. Submissions beyond the 10th attempt will not be accepted. * Numerical values ​​may be intentionally complex to prevent guessing the correct answer by substituting arbitrary values. The use of a calculator is strongly recommended. ### Permitted Items * Calculator * Scratch paper ### Prohibited Actions The following actions are prohibited: * Using generative AI tools * Consulting textbooks, reference books, or web searches for solutions * Consulting others * Sharing solutions, hints, or answers with others * Participating with multiple accounts, impersonation, or other forms of cheating If cheating is detected, your results may be invalidated in accordance with the Terms of Service. ### About This Contest This is the "Beginner" edition of the Gnit Weekly Challenge, held every Wednesday. It consists of 5 problems in total, with a maximum difficulty level of **5** for the Gnit Weekly Challenge Beginner series. We hope you use this contest for review or as a warm-up. ### Rated / Unrated Status This is an unrated contest. ### Problem Setters * admin02

## Contest Rules This contest is a 60-minute individual contest. ### Submissions * Submit your answers in the format shown in each problem statement. * Gnit checks answers by exact match with a natural number. Because of this, different answers caused by rounding are not accepted. * In physics, you may often round values based on significant figures. In this contest, do not round intermediate values or final results unless the problem statement tells you to do so. * You can submit an answer up to 10 times for each problem. The 11th and later submissions will not be accepted. * Some numbers may be complex to prevent guessing. Please use a calculator. ### You may use * A calculator * Scratch paper ### You may not use * AI tools * Textbooks or reference books * Web search * Help from other people * Sharing solutions, hints, or answers with others * Multiple accounts, impersonation, or any other unfair method If cheating is found, your score may become invalid under the Terms of Service. ### Rated / Unrated This contest will be Rated only if there are 20 or more Rated participants. If there are 19 or fewer Rated participants, the contest will be Unrated.

## Important Notes This contest is **not** available in English. This is a 30-minute individual contest. Please submit your answers to each problem within the time limit. ### Difficulty Level The difficulty level is roughly equivalent to the Gnit Beginner Open (GBO) plus a little extra. While primarily aimed at junior high and high school students, anyone is welcome to participate. The last two problems are quite difficult. ### Answers * Please submit answers in the format specified in the problem statement. * Gnit uses exact matching based on natural numbers; therefore, alternative answers resulting from different rounding methods are not accepted. * While values ​​in physics are sometimes rounded to match significant figures, please do not round intermediate calculations or final results in this contest unless specifically instructed to do so. * You may submit answers up to 10 times per problem. Submissions beyond the 10th attempt will not be accepted. * Numerical values ​​may be intentionally complex to prevent guessing the correct answer by substituting arbitrary values. The use of a calculator is strongly recommended. ### Permitted Items * Calculator * Scratch paper ### Prohibited Actions The following actions are prohibited: * Using generative AI tools * Consulting textbooks, reference books, or web searches for solutions * Consulting others * Sharing solutions, hints, or answers with others * Participating with multiple accounts, impersonation, or other forms of cheating If cheating is detected, your results may be invalidated in accordance with the Terms of Service. ### About This Contest This is the "Beginner" edition of the Gnit Weekly Challenge, held every Wednesday. It consists of 5 problems in total, with a maximum difficulty level of **5** for the Gnit Weekly Challenge Beginner series. We hope you use this contest for review or as a warm-up. ### Rated / Unrated Status This is an unrated contest. ### Problem Setters * admin02

## Important Notes This contest is not English-language. This contest is a 60-minute individual competition. Please submit your answers to each problem within the time limit. The questions aren't necessarily arranged in order of difficulty. Skip any questions you don't know the answer to. ### Difficulty Level This contest is approximately the same difficulty level as the Gnit Elite Open (GEO). ### Answer Guidelines * Please submit your answers according to the format specified in the problem statement. * Gnit uses natural number matching for exact matches. Therefore, alternative solutions due to different rounding methods will not be accepted. * While values ​​are sometimes rounded to match significant figures in physics, in this contest, please do not round intermediate or final results unless specifically instructed. * You can submit a maximum of 10 times per problem. Submissions beyond the 11th will not be accepted. * To prevent users from substituting arbitrary values ​​to get the correct answer, the numbers may be intentionally made complex. The use of a calculator is strongly recommended. ### Available Items * Calculator * Scratch paper ### Prohibited Actions The following actions are prohibited: * Use of AI generation tools * Referencing solutions from textbooks, reference books, or web searches * Consulting with others * Sharing solutions, hints, or answers with others * Participating with multiple accounts, impersonation, or other fraudulent methods If fraudulent activity is discovered, scores may be invalidated in accordance with the terms of service. ### About this Contest This contest is the Advanced contest of the Gnit Weekly Challenge, held every Wednesday. It consists of 4 questions, with a maximum difficulty of **10** and a minimum difficulty of **6**. We hope you will use it for review or as a warm-up. ### About Rated / Unrated This contest is an Unrated contest. ### Problem Creator * admin02

## Contest Rules This contest is a 90-minute individual contest. ### Submissions * Submit your answers in the format shown in each problem statement. * Gnit checks answers by exact match with a natural number. Because of this, different answers caused by rounding are not accepted. * In physics, you may often round values based on significant figures. In this contest, do not round intermediate values or final results unless the problem statement tells you to do so. * You can submit an answer up to 10 times for each problem. The 11th and later submissions will not be accepted. * Some numbers may be complex to prevent guessing. Please use a calculator. ### You may use * A calculator * Scratch paper ### You may not use * AI tools * Textbooks or reference books * Web search * Help from other people * Sharing solutions, hints, or answers with others * Multiple accounts, impersonation, or any other unfair method If cheating is found, your score may become invalid under the Terms of Service. ### Rated / Unrated This contest will be Rated only if there are 20 or more Rated participants. If there are 19 or fewer Rated participants, the contest will be Unrated.

## Important Notes This contest is **not** available in English. This is a 30-minute individual contest. Please submit your answers to each problem within the time limit. ### Difficulty Level The difficulty level is roughly equivalent to the Gnit Beginner Open (GBO) plus a little extra. While primarily aimed at junior high and high school students, anyone is welcome to participate. The last two problems are quite difficult. ### Answers * Please submit answers in the format specified in the problem statement. * Gnit uses exact matching based on natural numbers; therefore, alternative answers resulting from different rounding methods are not accepted. * While values ​​in physics are sometimes rounded to match significant figures, please do not round intermediate calculations or final results in this contest unless specifically instructed to do so. * You may submit answers up to 10 times per problem. Submissions beyond the 10th attempt will not be accepted. * Numerical values ​​may be intentionally complex to prevent guessing the correct answer by substituting arbitrary values. The use of a calculator is strongly recommended. ### Permitted Items * Calculator * Scratch paper ### Prohibited Actions The following actions are prohibited: * Using generative AI tools * Consulting textbooks, reference books, or web searches for solutions * Consulting others * Sharing solutions, hints, or answers with others * Participating with multiple accounts, impersonation, or other forms of cheating If cheating is detected, your results may be invalidated in accordance with the Terms of Service. ### About This Contest This is the "Beginner" edition of the Gnit Weekly Challenge, held every Wednesday. It consists of 6 problems in total, with a maximum difficulty level of **5** for the Gnit Weekly Challenge Beginner series. We hope you use this contest for review or as a warm-up. ### Rated / Unrated Status This is an unrated contest. ### Problem Setters * admin02 * TAC0S

## Important Notes This contest is **not** available in English. This is a 30-minute individual competition. Please submit your answers for each problem within the time limit. ### Difficulty Level The difficulty level of this contest is comparable to the Gnit Beginner Open (GBO)+α. While primarily aimed at junior high and high school students, anyone is welcome to participate. The last two problems are quite difficult. ### Answers * Please submit answers in the format specified in the problem statement. * Gnit uses exact matching based on natural numbers; therefore, alternative answers resulting from different rounding methods are not accepted. * While values ​​in physics are sometimes rounded to match significant figures, please do not round intermediate calculations or final results in this contest unless specifically instructed to do so. * You may submit answers up to 10 times per problem. Submissions beyond the 10th attempt will not be accepted. * Numerical values ​​may be intentionally complex to prevent guessing the correct answer by substituting arbitrary values. The use of a calculator is strongly recommended. ### Permitted Items * Calculator * Scratch paper ### Prohibited Actions The following actions are prohibited: * Using generative AI tools * Consulting textbooks, reference books, or web searches for solutions * Consulting others * Sharing solutions, hints, or answers with others * Participating with multiple accounts, impersonation, or other forms of cheating If cheating is detected, your results may be invalidated in accordance with the Terms of Service. ### About This Contest This is the "Beginner" edition of the Gnit Weekly Challenge, held every Wednesday. It consists of 6 problems in total, with a maximum difficulty level of **5** for the Gnit Weekly Challenge Beginner series. We hope you use this contest for review or as a warm-up. ### Rated / Unrated Status This is an **unrated** contest. ### Problem Setters * admin02