1到11总共11个数每组十个数字为一组，如果反复组合可以组合多少组 1-11（10和11视为一个数字）中任意8个不重复的组合，一...
\u6570\u5b571\u81f311\u5728\u8fd9\u5341\u4e00\u4e2a\u6570\u5b57\u4e2d\u4efb\u610f\u4e94\u4e2a\u53f7\u7801\u7ec4\u5408\u5728\u4e00\u8d77\u6bcf\u7ec4\u53f7\u7801\u91cc\u4e0d\u53ef\u4ee5\u6709\u91cd\u590d\u7684\u53f7\u7801\u4e00\u5171\u53ef\u4ee5\u7ec4\u6210\u591a\u5c11\u7ec4\u53f7\u53ef\u4ee5\u7ec4\u5408462\u7ec4\u4e0d\u91cd\u590d\u7684,\u7b80\u5355\u5f97\u4e0d\u80fd\u5728\u7b80\u5355\u4e86,1\u523011\u4e2a\u6570\u5b57,5\u4e2a\u7ec4\u5408\u6210\u4e00\u7ec4,\u4e0d\u91cd\u590d,\u5982\u679c\u6ca1\u731c\u9519\u662f11\u90095
\u4e0b\u9762\u5c31\u4ecb\u7ecd\u4e0b\u5b9e\u73b0\u65b9\u6cd5\uff1a\u4e3a\u4e86\u80fd\u66f4\u597d\u5f97\u53d6\u503c,\u8ba9\u6570\u5b57\u81ea\u52a8\u53d8\u6362,\u6211\u7528\u4e86\u5176\u5b83\u7b26\u53f7\u8fde\u63a5\u5b57\u7b26,
\u5047\u5982B3=1/2\u00d73-4+5 (\u4e5f\u5c31\u662f\u4f60\u8bf4\u5f975\u4e2a\u4e00\u7ec4\u5408)
B4
\u516c\u5f0f\u5411\u4e0b\u62c9=IF(B3="","",IF(--RIGHT(B3,2)<11,LEFT(B3,5)&"-"&
MID(B3,FIND("-",B3)+1,FIND("+",B3)-FIND("-",B3)-1)+1&"+"&MID(B3,FIND("-",B3)+1,FIND("+",B3)-FIND("-",B3)-1)+2,IF(AND(--LEFT(B3,1)=7,--MID(B3,3,1)=8,--MID(B3,5,1)=9,--MID(B3,7,2)=10,--RIGHT(B3,2)=11),"",IF(AND(--LEFT(B3,1)<7,--MID(B3,3,1)=8,--MID(B3,5,1)=9,--MID(B3,7,2)=10,--RIGHT(B3,2)=11),LEFT(B3,1)+1&"/"&LEFT(B3,1)+2&"\u00d7"&LEFT(B3,1)+3&"-"&LEFT(B3,1)+4&"+"&LEFT(B3,1)+5,IF(AND(--MID(B3,3,1)<8,--MID(B3,5,1)=9,--MID(B3,7,2)=10,--RIGHT(B3,2)=11),LEFT(B3,1)&"/"&MID(B3,FIND("/",B3)+1,FIND("\u00d7",B3)-FIND("/",B3)-1)+1&"\u00d7"&MID(B3,FIND("/",B3)+1,FIND("\u00d7",B3)-FIND("/",B3)-1)+2&"-"&MID(B3,FIND("/",B3)+1,FIND("\u00d7",B3)-FIND("/",B3)-1)+3&"+"&MID(B3,FIND("/",B3)+1,FIND("\u00d7",B3)-FIND("/",B3)-1)+4,IF(AND(--MID(B3,FIND("\u00d7",B3)+1,FIND("-",B3)-FIND("\u00d7",B3)-1)<9,--MID(B3,FIND("-",B3)+1,FIND("+",B3)-FIND("-",B3)-1)=10,--RIGHT(B3,2)=11),LEFT(B3,4)&MID(B3,FIND("\u00d7",B3)+1,FIND("-",B3)-FIND("\u00d7",B3)-1)+1&"-"&MID(B3,FIND("\u00d7",B3)+1,FIND("-",B3)-FIND("\u00d7",B3)-1)+2&"+"&MID(B3,FIND("\u00d7",B3)+1,FIND("-",B3)-FIND("\u00d7",B3)-1)+3,))))))
C3\u516c\u5f0f\u5411\u53f3\u62c9\u5728\u5411\u4e0b\u62c9=IF(B3="","",IF(--RIGHT(B3,2)=11,"",LEFT(B3,8)&--RIGHT(B3,2)+1))
\u8fd9\u5c31\u662f\u7ec4\u5408\u4e86C11/8\u4e86\uff0c\u4e5f\u5c31\u662f\u8bf4\u572811\u4e2a\u6811\u79cd\u4efb\u90098\u4e2a\u6570\u5b57\uff01\u8fd9\u4e5f\u592a\u591a\u4e86\uff0c\u6211\u641e\u4e0d\u6765\uff01
11选10，一共有11组可以组合 11^10 组。
绛旓細1 2 11, 3 4 7, 4 10, 6 8, 5 9.
绛旓細涓鑸殑锛宯鍒癿鍏辨湁锛坣-m+1锛変釜鏁帮紱鎵浠1鍒10鏄10-1+1=10涓暟锛9鍒19 鏄19-9+1=11涓暟銆
绛旓細灏嗚繖20涓暟鍒嗘垚10缁勶紝浣垮緱姣忕粍涓换鎰忎袱涓暟涓紝涓涓暟鏄彟涓涓暟鐨勫嶆暟锛1 2 4 8 16 3 6 12 5 10 20 7 14 9 18 11 13 15 17 19 浠庤繖10缁勬暟涓换鍙11涓暟锛屽繀鏈変袱涓暟鍦ㄥ悓涓缁勪腑锛屼篃灏辨槸璇达紝浠诲彇11涓暟锛岃嚦灏戞湁涓や釜鏁帮紝鍏朵腑涓涓暟鏄彟涓涓暟鐨勫嶆暟銆傚弬鑰冭祫鏂欙細http://zhidao...
绛旓細1鍒11鍒嗘槑11涓暟-_-||
绛旓細鈶 (5,10,20),鈶 (7,14),鈶 (9,18),鈶 (11),鈶 (13),鈶 (15),鈶 (17),鈶 (19),⑪ (1).濡傛灉浠庡墠鍗佺粍涓换鍙11涓暟,鍒欏繀鏈変袱涓暟鍙栬嚜鍓嶄簲缁勪腑鐨勬煇涓粍,杩欎袱涓暟婊¤冻鍏朵腑涓涓槸鍙︿竴涓殑鍊嶆暟.鍚﹀垯,娌℃湁涓や釜鏁板彇鑷悓涓缁,鍗充粠鍓嶅崄缁勭殑姣忎釜缁鍚勫彇1涓...
绛旓細闂鎻忚堪:浠1銆2銆3銆4銆5銆6銆7銆8銆9銆10銆11杩11涓暟瀛椾换鎰忛夋嫨6涓暟瀛鍑烘潵缁勫悎鎴愪负涓缁勶紝姣斿1銆2銆3銆4銆5銆6鎴栬7銆8銆9銆10銆11绛夌瓑锛屼竴鍏辨湁寰堝绉嶆儏鍐碉紝鎯呭喌鐨勭鏁版垜娌＄畻閿欒鐨勮瘽搴旇鏄紙11脳10脳9脳8脳7锛/锛6脳5脳4脳3脳2锛/锛5脳4脳3脳2锛夌锛岃闂庢牱鎵嶅彲浠ユ妸姣...
绛旓細绛旓細鍗冲湪11涓暟涓夋嫨5涓殑绉嶆暟锛欳(11,5)=11x10x9x8x7/5x4x3x2=11x6x8x7=3696锛堢粍锛
绛旓細1銆佹妸杩20涓暟锛屽垎涓猴紙1锛39锛夛紙3锛37锛夛紙5锛35锛夛紙7锛33锛夛紙9锛31锛夛紙11锛29锛夛紙13锛27锛夛紙15锛23锛夛紙17锛21锛夋湁9缁勶紝姣忕粍涓袱涓暟鐨勫拰閮戒负40銆傚墿涓嬶紙19锛夎繖鏍蜂竴鍏卞氨鏄10缁勩2銆佷粠姣忕粍涓悇鍙栧嚭1涓暟锛屽叡鍙栧嚭10涓暟锛屼絾娌℃湁浠讳綍涓瀵规暟鐩稿姞鐨勫拰鏄40 鐨勩傚啀浠绘剰鎶藉彇绗11涓暟锛屼笉...
绛旓細1-11涓鍏11涓暟锛5涓竴缁勮繕涓嶈兘鐩稿悓锛岀粍鍑6涓暟閭ｈ5x6=30涓暟锛屼綘杩欓鏄粈涔堟剰鎬濓紵
绛旓細鍙浼氱紪绋嬶紝闅忎究浣跨敤鍝涓绉嶈瑷锛屼娇鐢ㄥ惊鐜氨鍙互浜 鎬绘暟閲忔槸锛11锛/锛6锛伱5锛侊級锛11脳10脳9脳8脳7/锛5脳4脳3脳2锛夛紳462 杩欎簺缁勫悎鏄細1,2,3,4,5,6锛1,2,3,4,5,7锛1,2,3,4,5,8锛1,2,3,4,5,9锛1,2,3,4,5,10 1,2,3,4,5,11锛1,2,3,4,6,7锛1,2,3,4,6,...
