a 64 16 0x7FFFFFFFFFFFFFFF;
b 64 16 0x8000000000000000 a+b
10
:B : ( )
1
-1
2^63+2^62+…+2^2+2^1+2^0
–(2^63+2^62+…+2^2+2^1+2^0)
TCP
:B : ( )
ACK
SYN,ACK
SYN,PSH
SYN
333
111333222444 ?
:C : ( )
2314
1423
4231
3124A B 1 0
C D E F
:D : ( )
C=0,D=1,E=0,F=1
C=1,D=1,E=1,F=0
C=1,D=1,E=0,F=1
C=0,D=0,E=0,F=1
C++
:A : ( ))
**bb,,**oobbjj;; c,lhs,rhs,obj2,aa
*b,*obj; str,c,lhs,rhs,obj2,aa
*b,*obj2; c,lhs,rhs,obj,aa
*b,*obj,*str; c,lhs,rhs,aa
LRU(leastrecentlyused)
5
1,2,5,3,4,6,1,4,3,6,7,8,3,9
:C : ( )9
4
10
5
int32-t 32 main res
:D : ( )
–((22^^3311++22^^3300++……++22^^22++22^^11++22^^00))
0
-1
1 888 1 8
111 8 111 1 8
:B : ( )x86CPU 2330H:5041H,
:A : ( )
28341H
5374H
52740H
7371H
:D : ( ))
170
160
120
130
2017
3
aa,,bb,,cc 3
a<=b<=c
b-a<=10
c-b<=10
n n 1
3m n A1,A2,..An A n(n-1)/2
m
