绗竴绔?/p>
闆嗗悎涓庡懡棰?/p>
涓�锛庨泦鍚堬細
1
锛?/p>
姒傚康鍙婄鍙风殑浣跨敤
.
锛氶泦鍚堛�佸厓绱狅紝灞炰簬锛岃嚜鐒舵暟闆嗭紝鏁存暟闆嗭紝鏈夌悊鏁伴泦锛屽疄鏁伴泦锛?
鏈夐檺闆嗐�佹棤闄愰泦锛涚┖闆嗭紝鍒椾妇娉曘�佹弿杩版硶銆佸瓙闆嗭紝鍖呭惈锛堝寘鍚簬锛?/p>
锛屽浘绀烘硶锛屾枃姘?/p>
鍥撅紝鐪熷瓙闆嗭紝鐪熷寘鍚紙鐪熷寘鍚簬锛?/p>
锛?/p>
銆佷氦闆嗭紝骞堕泦锛屽叏闆嗭紝琛ラ泦銆?/p>
2
锛?/p>
飪?/p>
飪?/p>
锛?/p>
鐨勬瘮杈?/p>
锛氬厓绱犱笌闆嗗悎闂村叧绯荤敤
,
飪?/p>
飪?/p>
锛涢泦鍚堜笌闆嗗悎闂村叧绯荤敤
飪?/p>
飪?/p>
锛?/p>
绫伙紱
3
锛?/p>
浜ら泦锛屽苟闆嗭紝琛ラ泦鐨勬瘮杈?/p>
浜ら泦
骞堕泦
琛ラ泦
鏂囧瓧璇█
绗﹀彿璇█
鍥?/p>
褰?/p>
璇?/p>
瑷�
锛堟枃姘忓浘锛?/p>
4
锛?/p>
鍏充簬瀛愰泦鐨勭瓑浠峰叧绯伙細
U
A
B
A
B
A
A
B
B
A
B
U
飪?/p>
飪?/p>
飥?/p>
飪?/p>
飥?/p>
飪?/p>
飥?/p>
C
5
锛?/p>
闆嗗悎鐨勮繍绠楁�ц川锛?/p>
鈶?/p>
A
B
飥?/p>
B
A
锛?/p>
A
B
=
B
A
鈶?/p>
(
)
A
B
C
=
(
)
A
B
C
锛?/p>
(
)
A
B
C
=
(
)
A
B
C
鈶?/p>
(
)
U
C
A
B
=
U
U
C
A
C
B
,
(
)
U
U
U
C
A
B
C
A
C
B
飥?/p>
鈶?/p>
A
A
A
飥?/p>
A
A
A
飥?/p>
A
飪?/p>
飥?/p>
飪?/p>
A
A
飪?/p>
飥?/p>
6
锛?/p>
鏈夐檺闆嗙殑鍏冪礌涓暟
鏈夐檺闆?/p>
A
鐨勫厓绱犵殑涓暟璁颁负
card(
A)
锛?/p>
瑙勫畾
card(
蠁
)
=0.
鍩烘湰鍏紡锛?/p>
锛?/p>
1
锛夎鏈夐檺闆嗗悎
A, card(A)=n,
鍒?/p>
(
鈪?/p>
)A
鐨勫瓙闆嗕釜鏁颁负
n
2
锛?
(
鈪?/p>
)A
鐨勭湡瀛愰泦涓暟涓?/p>
1
2
飥?/p>
n
锛?
(
鈪?/p>
)A
鐨勯潪绌哄瓙闆嗕釜鏁颁负
1
2
飥?/p>
n
锛?/p>
(
鈪?/p>
)A
鐨勯潪绌虹湡瀛愰泦涓暟涓?/p>
2
2
飥?/p>
n
.
锛?/p>
2
锛夎鏈夐檺闆嗗悎
A
銆?/p>
B
銆?/p>
C
锛?/p>
card(B)=m, card(A)=n
锛?/p>
m<n,
鍒?/p>
(
鈪?/p>
)
鑻?/p>
A
C
B
飪?/p>
飪?/p>
,
鍒?/p>
C
鐨勪釜鏁颁负
m
n
飥?/p>
2
锛?/p>
(
鈪?/p>
)
鑻?/p>
A
C
B
飪?/p>
飪?/p>
,
鍒?/p>
C
鐨勪釜鏁颁负
1
2
飥?/p>
飥?/p>
m
n
锛?/p>
鈶?/p>
瀹规枼鍘熺悊锛?/p>
card(A
鈭?/p>
B)= card(A)+card(B)- card(A
鈭?/p>
B)
锛?/p>
浜岋紟鍥涚鍛介褰㈠紡鍙婂叧绯?/p>
1
锛?/p>
姒傚康锛?/p>
2.
鍛介锛岀湡锛堝亣锛夊懡棰?/p>
閫嗗懡棰橈紝鍚﹀懡棰橈紝閫嗗惁鍛介
绛変环鍛介
鍘熷懡棰?/p>
鑻?/p>
p
鍒?/p>
q
鍚﹀懡棰?/p>
鑻?/p>
p
鍒?/p>
q
閫嗗懡棰?/p>
鑻?/p>
q
鍒?/p>
p
閫嗗惁鍛介
鑻?/p>
q
鍒?/p>
p
浜掗�?/p>
涓?/p>
?
浜?/p>
鍚?/p>
閫?/p>
浜?/p>
閫?/p>
涓?/p>
浜?/p>
鍚?/p>
浜?/p>
閫?/p>
鍚?/p>
浜?/p>
鍚?/p>