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Description: 北京大学ACM比赛题目
In 1742, Christian Goldbach, a German amateur mathematician, sent a letter to Leonhard Euler in which he made the following conjecture:
Every even number greater than 4 can be
written as the sum of two odd prime numbers.
For example:
8 = 3 + 5. Both 3 and 5 are odd prime numbers.
20 = 3 + 17 = 7 + 13.
42 = 5 + 37 = 11 + 31 = 13 + 29 = 19 + 23.
Today it is still unproven whether the conjecture is right. (Oh wait, I have the proof of course, but it is too long to write it on the margin of this page.)
Anyway, your task is now to verify Goldbach s conjecture for all even numbers less than a million.-Peking University ACM Competition Title In 1742, Christian Goldbach, a German amateur mathematician, sent a letter to Leonhard Euler in which he made the following conjecture: Every even number greater than 4 can be written as the sum of two odd prime numbers. For example : 8 = 3+ 5. Both 3 and 5 are odd prime numbers. 20 = 3+ 17 = 7+ 13. 42 = 5+ 37 = 11+ 31 = 13+ 29 = 19+ 23 . Today it is still unproven whether the conjecture is right. (Oh wait, I have the proof of course, but it is too long to write it on the margin of this page.) Anyway, your task is now to verify Goldbach s conjecture for all even numbers less than a million.
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Size: 2048 |
Author: pengfam |
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Description: 自制小时钟 可以遥控调节时间，采用315M 2262 ，2272 收发模块 发来给新手看看 -Self-made small-time clock can be adjusted remotely, using 315M 2262, 2272, sent to the transceiver module to see if novice
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Size: 27648 |
Author: 李星 |
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Description: 编解码资料，2262，2272 很全，是弄无线模块的好资料-Encoding and decoding data, 2262,2272 very full, is get good information on the wireless module
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Size: 625664 |
Author: qw |
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Description: 2262程序，简单易懂，很适合初学者学习，非常有趣的无线控制-2262 program, easy to understand, it is suitable for beginners to learn, very interesting wireless control
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Size: 18432 |
Author: shirubing |
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