數學科展 - 合作拿卡片 by 縣立大村國中郭孟倉 https://padlet.com/guo82/opv5dtbz9an0iiwk en-us 2026-01-13 05:01:07 UTC 2026-02-26 02:20:08 UTC hello@padlet.com 合作拿卡片 guo82 https://padlet.com/guo82/opv5dtbz9an0iiwk/wish/3748922774 有20張卡片上面標著分別是1,2,3,4.....20 ；小冠和小誼兩人合作,如果小冠拿了編號為a的卡片,小誼就要拿走編號為2a+2的卡片。如果小誼已經沒有卡片可以拿了,遊戲就結束。

1. 請問兩人合作,最多一共可以拿走多少張卡片?

2. 如果小誼必須拿走的編號是3a-2呢?

3. 如果小誼可以在2a+2和3a-2之中選一張拿走呢?

4. 如果有100張卡片,編號是1,2,3, ,100呢?

]]> 2026-01-13 05:01:22 UTC https://padlet.com/guo82/opv5dtbz9an0iiwk/wish/3748922774 guo82 https://padlet.com/guo82/opv5dtbz9an0iiwk/wish/3801171508

  • 在1-20的範圍中數字由小到大與由大到小求解得到的解答明顯會不同

  • 所以設計由大到小與由小到大兩個迴圈分別檢視答案

  • 最後取兩者的較大值作為最後答案

    • ]]>     2026-02-25 02:20:43 UTC https://padlet.com/guo82/opv5dtbz9an0iiwk/wish/3801171508     guo82 https://padlet.com/guo82/opv5dtbz9an0iiwk/wish/3801172182 2026-02-25 02:21:23 UTC https://padlet.com/guo82/opv5dtbz9an0iiwk/wish/3801172182 建立變數、數列 guo82 https://padlet.com/guo82/opv5dtbz9an0iiwk/wish/3801258478 2026-02-25 03:37:13 UTC https://padlet.com/guo82/opv5dtbz9an0iiwk/wish/3801258478 分別建立listL、listR包含1.2.3...n個整數 guo82 https://padlet.com/guo82/opv5dtbz9an0iiwk/wish/3801259899 2026-02-25 03:38:26 UTC https://padlet.com/guo82/opv5dtbz9an0iiwk/wish/3801259899 設定a=1,2,3...,20、b=2a+2，若a,b同時在listL中就將數對a,b加入ansL中，同時在listL中分別移除a,b兩數 guo82 https://padlet.com/guo82/opv5dtbz9an0iiwk/wish/3801263689 2026-02-25 03:42:17 UTC https://padlet.com/guo82/opv5dtbz9an0iiwk/wish/3801263689 設定a=20,19,,18...,1、b=2a+2，若a,b同時在listR中就將數對a,b加入ansR中，同時在listR中分別移除a,b兩數 guo82 https://padlet.com/guo82/opv5dtbz9an0iiwk/wish/3801266382 2026-02-25 03:44:56 UTC https://padlet.com/guo82/opv5dtbz9an0iiwk/wish/3801266382 設定n=20 guo82 https://padlet.com/guo82/opv5dtbz9an0iiwk/wish/3801267526 2026-02-25 03:46:07 UTC https://padlet.com/guo82/opv5dtbz9an0iiwk/wish/3801267526 設定n=20 guo82 https://padlet.com/guo82/opv5dtbz9an0iiwk/wish/3801267769 2026-02-25 03:46:14 UTC https://padlet.com/guo82/opv5dtbz9an0iiwk/wish/3801267769 建立變數、數列 guo82 https://padlet.com/guo82/opv5dtbz9an0iiwk/wish/3801268482 2026-02-25 03:46:50 UTC https://padlet.com/guo82/opv5dtbz9an0iiwk/wish/3801268482 設定a=1,2,3...,20、c=3a-2，若a不等於c,且a,c同時在listL中就將數對a,c加入ansL中，同時在listL中分別移除a,c兩數 guo82 https://padlet.com/guo82/opv5dtbz9an0iiwk/wish/3801268777 2026-02-25 03:47:09 UTC https://padlet.com/guo82/opv5dtbz9an0iiwk/wish/3801268777 設定a=20,19,,18...,1、c=3a-2，若a不等於c,且a,c同時在listR中就將數對a,c加入ansR中，同時在listR中分別移除a,c兩數 guo82 https://padlet.com/guo82/opv5dtbz9an0iiwk/wish/3801271268 2026-02-25 03:49:45 UTC https://padlet.com/guo82/opv5dtbz9an0iiwk/wish/3801271268 將ANS設定為ansL、ansR中較大的數，輸出ANS即為所求(因為ansL中儲存為數對所以數量*2才等於卡片數) guo82 https://padlet.com/guo82/opv5dtbz9an0iiwk/wish/3801272949 2026-02-25 03:51:34 UTC https://padlet.com/guo82/opv5dtbz9an0iiwk/wish/3801272949 設定n=20 guo82 https://padlet.com/guo82/opv5dtbz9an0iiwk/wish/3801274522 2026-02-25 03:53:16 UTC https://padlet.com/guo82/opv5dtbz9an0iiwk/wish/3801274522 建立變數、數列 guo82 https://padlet.com/guo82/opv5dtbz9an0iiwk/wish/3801274625 2026-02-25 03:53:23 UTC https://padlet.com/guo82/opv5dtbz9an0iiwk/wish/3801274625 分別建立listL、listR包含1.2.3...n個整數 guo82 https://padlet.com/guo82/opv5dtbz9an0iiwk/wish/3801275114 2026-02-25 03:53:54 UTC https://padlet.com/guo82/opv5dtbz9an0iiwk/wish/3801275114 分別建立listL、listR包含1.2.3...n個整數 guo82 https://padlet.com/guo82/opv5dtbz9an0iiwk/wish/3801275282 2026-02-25 03:54:08 UTC https://padlet.com/guo82/opv5dtbz9an0iiwk/wish/3801275282 設定a=1,2,3...,20、b=2a+2，若a,b同時在listL中就將數對a,b加入ansL中，同時在listL中分別移除a,b兩數 guo82 https://padlet.com/guo82/opv5dtbz9an0iiwk/wish/3801275517 2026-02-25 03:54:24 UTC https://padlet.com/guo82/opv5dtbz9an0iiwk/wish/3801275517 設定a=1,2,3...,20、c=3a-2，若a不等於c,且a,c同時在listL中就將數對a,c加入ansL中，同時在listL中分別移除a,c兩數 guo82 https://padlet.com/guo82/opv5dtbz9an0iiwk/wish/3801275865 2026-02-25 03:54:48 UTC https://padlet.com/guo82/opv5dtbz9an0iiwk/wish/3801275865 設定a=20,19,,18...,1、b=2a+2，若a,b同時在listR中就將數對a,b加入ansR中，同時在listR中分別移除a,b兩數 guo82 https://padlet.com/guo82/opv5dtbz9an0iiwk/wish/3801276181 2026-02-25 03:55:10 UTC https://padlet.com/guo82/opv5dtbz9an0iiwk/wish/3801276181 設定a=20,19,,18...,1、ㄏ=3a-2，若a不等於c,且a,c同時在listR中就將數對a,c加入ansR中，同時在listR中分別移除a,c兩數 guo82 https://padlet.com/guo82/opv5dtbz9an0iiwk/wish/3801276545 2026-02-25 03:55:22 UTC https://padlet.com/guo82/opv5dtbz9an0iiwk/wish/3801276545 將ANS設定為ansL、ansR中較大的數，輸出ANS即為所求(因為ansL中儲存為數對所以數量*2才等於卡片數) guo82 https://padlet.com/guo82/opv5dtbz9an0iiwk/wish/3801277008 2026-02-25 03:55:56 UTC https://padlet.com/guo82/opv5dtbz9an0iiwk/wish/3801277008 將ANS設定為ansL、ansR中較大的數，輸出ANS即為所求(因為ansL中儲存為數對所以數量*2才等於卡片數) guo82 https://padlet.com/guo82/opv5dtbz9an0iiwk/wish/3801277142 2026-02-25 03:56:05 UTC https://padlet.com/guo82/opv5dtbz9an0iiwk/wish/3801277142 XML guo82 https://padlet.com/guo82/opv5dtbz9an0iiwk/wish/3801532400 2026-02-25 08:17:31 UTC https://padlet.com/guo82/opv5dtbz9an0iiwk/wish/3801532400