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2
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1
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Random_Doubt
if it is given -> "Every satisfiable propositional formula is not tautology" then what will it corresponds to? i am writing its hindi, which among below two are correct? "har ek satisfiable formula tautology nahi hota hai" // it is indeed truth. "koi bhi satisfiable formula hua, to wo tautology nahii hoga" // this is false.
asked
in
Mathematical Logic
Jan 24, 2018
249
views
discrete-mathematics
propositional-logic
2
votes
0
answers
2
doubt
#include <stdio.h> int main(void) { static int a[10]; int x=0; a[x]=++x; printf("%d %d %d",a[0],a[1],a[2]); return 0; } my doubt here is [ ] has high precedence over ++ which in turn has precedence over =, so i think it a[x] = ++x; is evaluated in 3 ... > a* phase2: ++x -> x=1 phase3: a*=1 or a[0]=1 so finally answer should be 1 0 0, but it is giving 0 1 0 as output.
asked
in
Programming
Dec 3, 2017
278
views
programming-in-c
5
votes
1
answer
3
Doubt
#include <stdio.h> #define A -B #define B -C #define C 5 int main(void) { printf("%d",A); return 0; } now my doubt here is, before compilaion i think macro will make printf part as, printf("%d",--5); which should give L-value ... ("%d",-(-5)); leading to no compiler error and giving answer as 5, but macro implicitly never put precedence braces() itself...
asked
in
Programming
Nov 5, 2017
578
views
macros
3
votes
1
answer
4
IPv6 header
No. of bits to represent (traffic class, flow label) in IPv6 header ?? in fourozan it is given as (4, 24) whereas in peterson and tennenbaum it is given as (8, 20)
asked
in
Computer Networks
Oct 5, 2017
470
views
ipv6
2
votes
0
answers
5
self doubt
if A is regular, L= HALF(A)= { x | for some y, |x|= |y| and xy ϵ A} is regular i want to ask if i know DFA for A, how to construct DFA for L ??
asked
in
Theory of Computation
Aug 1, 2017
210
views
theory-of-computation
0
votes
1
answer
6
switch-case
BREAK can be used in switch-case but CONTINUE is not allowed in switch-case but CONTINUE is allowed in DEFAULT case of switch-case..is it correct??
asked
in
Programming and DS
Jun 29, 2017
318
views
switch-case
0
votes
0
answers
7
ace practice booklet
asked
in
Databases
Jun 20, 2017
489
views
tuple-relational-calculus
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