Coding puzzle :D
- Thread starter SLH
- Start date
H
hax
Guest
for (i = 0; i < -n; i--) perhaps?
http://icpc.baylor.edu/icpc/ - ACM's international programming competition (done in teams of 3).Onions said:and so the idea of coding competitions entered the mind of onions! ta
http://icpc.baylor.edu/Past/PastProblems.html - past problem sets for world finals.
http://www.acm.inf.ethz.ch/ProblemSetArchive.html - problem set archive.
With the first 2 answeres from hasan, last one is :SLH said:
for(i = 0; i + n; i--)
int i, n = 20;
for (i = 0; i < n; i--)
printf("-");;
int i, n = 20;;
for (i = 0; i < n; i--)
printf("-");
int i, n = 20;
for (i = 0; i < n; i--)
printf("-");
;
happy?
You should really word the problem better, cause I found the easiest way out.
for (i = 0; i < n; i--)
printf("-");;
int i, n = 20;;
for (i = 0; i < n; i--)
printf("-");
int i, n = 20;
for (i = 0; i < n; i--)
printf("-");
;
happy?
You should really word the problem better, cause I found the easiest way out.
also, since '\n' could be considered a single character, you could easily simply remove the line breaks in the code... yet another easy way around the problem...
you could also eliminate spaces..
programmers always find the easiest and most efficient way to solve a problem...
you could also eliminate spaces..
programmers always find the easiest and most efficient way to solve a problem...
SLH
Newbie
- Joined
- Sep 5, 2003
- Messages
- 1,563
- Reaction score
- 0
I guess he can answer for himself, but i can see what's not to understand.hasan said:
I mean what's confusing about this:
"By adding or removing or replacing only
a single character from the code, make it print '-' 20 times."
It looks like he thought the code i gave already worked or something....
err
yah, I didn't actually read the whole question...
but still
if originally you had had the usual
int i, n = 20;
for (i = 0; i < n; i++)
printf("-");
and the same spiel, my solution would have technically worked...
I was just lazy i suppose.
hey wait, you said "print '-' 20 times"
but that doesn't mean you can't print it more than 20 times. You set no limiter in the question, therefore you are allowed to print it more than 20 times. If it print it 40 times, it still printed it 20 times, so it validates that section of the problem.
so
my solution would yet again technically work. So stop bashing me for pointing out the problems in the question -_-
yah, I didn't actually read the whole question...
but still
if originally you had had the usual
int i, n = 20;
for (i = 0; i < n; i++)
printf("-");
and the same spiel, my solution would have technically worked...
I was just lazy i suppose.
hey wait, you said "print '-' 20 times"
but that doesn't mean you can't print it more than 20 times. You set no limiter in the question, therefore you are allowed to print it more than 20 times. If it print it 40 times, it still printed it 20 times, so it validates that section of the problem.
so
my solution would yet again technically work. So stop bashing me for pointing out the problems in the question -_-
SLH
Newbie
- Joined
- Sep 5, 2003
- Messages
- 1,563
- Reaction score
- 0
Ok, sorry i didn't see the fault in that question, if we're gonna post 'different' solutions, then i propose identical code (adding a null charactor)Synthos said:
:cheese:I think you knew what i ment though (and i think the limiter was implicit).....
Phisionary
Newbie
- Joined
- Jul 2, 2003
- Messages
- 1,305
- Reaction score
- 0
just curious. i'm a bit sketchy with c/cpp. if i had a compiler i'd try it.
could
for (i = 0; i < n; i--1)
be interpreted as 'i minus negative 1'
i'm assuming that's a syntax error (without parenthesis, at least).
could
for (i = 0; i < n; i--1)
be interpreted as 'i minus negative 1'
i'm assuming that's a syntax error (without parenthesis, at least).
Phisionary
Newbie
- Joined
- Jul 2, 2003
- Messages
- 1,305
- Reaction score
- 0
Never afraid to kick a dead horse (or whatever) I thought I could clarify the rules for Synthos a bit.
Please reference the attatched definintions page.
[size=+1]Instructions:[/size]
By adding or removing or replacing only
a single character from the code, make it print '-' 20 times.
There are 3 possible solutions, can you get them all?
[size=+1]Definitions:[/size]
adding -
To join or unite, as one thing to another, or as several particulars, so as to increase the number, augment the quantity, enlarge the magnitude, or so as to form into one aggregate.
removing
To cause to leave a thing; to cause to cease to be; to take away; to delete or abolish.
replacing
To take the place or move into the position of; to put in the place of another; or to switch seemingly equivalent items (as characters);
single
One only, as distinguished from more than one; consisting of one alone; individual; separate.
character
For the purposes of this document, and ASCII symbol as a valid representation of an alphanumeric constant, variable, or operator within the C / C++ programming language.
print
For the purposes of this document, to display to the monitor, printer, or output device.
-
For the purposes of this document, ASCII character as internally represented by the C / C++ programming language by hexidecimal number 0x2D.
20
For the purposes of this document, a number interpreted a radix 10, with zero in the first order position (ones), and two in the second order position (tens). Hereafter known as "twenty."
times
A product of singular events multiplied through a process of repetition.
possible solutions
For the purposes of this document, unique and independant products of creative endeavor pursuent to the goals established in the Instructions [sect.1; para.1; pg.1].
get
To procure; to obtain; to gain possession of; to acquire; to earn; to obtain as a price or reward; to come by; to win, by almost any means.
them
For the purposes of this document, aforementioned possible solutions.
all
The whole quantity, extent, duration, amount, quality, or degree of; the whole; the whole number of; any whatever; every.
Please reference the attatched definintions page.
[size=+1]Instructions:[/size]
By adding or removing or replacing only
a single character from the code, make it print '-' 20 times.
There are 3 possible solutions, can you get them all?
[size=+1]Definitions:[/size]
adding -
To join or unite, as one thing to another, or as several particulars, so as to increase the number, augment the quantity, enlarge the magnitude, or so as to form into one aggregate.
removing
To cause to leave a thing; to cause to cease to be; to take away; to delete or abolish.
replacing
To take the place or move into the position of; to put in the place of another; or to switch seemingly equivalent items (as characters);
single
One only, as distinguished from more than one; consisting of one alone; individual; separate.
character
For the purposes of this document, and ASCII symbol as a valid representation of an alphanumeric constant, variable, or operator within the C / C++ programming language.
For the purposes of this document, to display to the monitor, printer, or output device.
-
For the purposes of this document, ASCII character as internally represented by the C / C++ programming language by hexidecimal number 0x2D.
20
For the purposes of this document, a number interpreted a radix 10, with zero in the first order position (ones), and two in the second order position (tens). Hereafter known as "twenty."
times
A product of singular events multiplied through a process of repetition.
possible solutions
For the purposes of this document, unique and independant products of creative endeavor pursuent to the goals established in the Instructions [sect.1; para.1; pg.1].
get
To procure; to obtain; to gain possession of; to acquire; to earn; to obtain as a price or reward; to come by; to win, by almost any means.
them
For the purposes of this document, aforementioned possible solutions.
all
The whole quantity, extent, duration, amount, quality, or degree of; the whole; the whole number of; any whatever; every.
Phisionary said:
No it couldn't. The postdecerment operator takes precedence over the unary negation, predecrement, and subtraction operators. Meaning that i--1 would be interpreted as (i--)1 NOT i(--1) or i-(-1). This ofcoarse does lead to a syntax error, so your assumption is correct.
On the other hand i---1 IS valid. It would be interpreted as (i *postdecrement operator*) *subtraction operator* 1.
Phisionary
Newbie
- Joined
- Jul 2, 2003
- Messages
- 1,305
- Reaction score
- 0
hehe. sorry. an overreaction to harmless nitpicking. :dozey:
if it makes you feel better, it was a product of boredom mostly. 13 definitions for two sentances. i mean, really. don't i have anything better to do. *sigh*
if it makes you feel better, it was a product of boredom mostly. 13 definitions for two sentances. i mean, really. don't i have anything better to do.
*sigh*Similar threads
