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Increment each digit in a number to form a new number
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Today I've found /r/dailyprogrammer and I've solved an easy challenge. I'm new to coding and I'm not sure if this is good way to solve this kind of problems. Could you, please, give me some hints? How to make my code more clear and readable? Thanks!
Challange description:
A number is input in computer then a new no should get printed by
adding one to each of its digit. If you encounter a 9, insert a 10
(don't carry over, just shift things around).
For example, 998 becomes 10109.
Bonus
This challenge is trivial to do if you map it to a string to iterate
over the input, operate, and then cast it back. Instead, try doing it
without casting it as a string at any point, keep it numeric (int,
float if you need it) only.
private static int Challange(int number)
{
int digits = (int)Math.Log10(number); //this is number of digits -1
int result = 0;
for (int i=0; i <= digits; i++)
{
int tens = (int)(Math.Pow(10, digits - i));
int currentDigit = ((number / tens) % 10);
if (currentDigit == 9) result *= 10;
result += (currentDigit + 1) * tens;
}
return result;
}
c# programming-challenge
edited 1 hour ago
t3chb0t
34.7k750121
asked 2 hours ago
nowakasdnowakasd
162
New contributor
nowakasd is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
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add a comment |
$begingroup$
Today I've found /r/dailyprogrammer and I've solved an easy challenge. I'm new to coding and I'm not sure if this is good way to solve this kind of problems. Could you, please, give me some hints? How to make my code more clear and readable? Thanks!
Challange description:
A number is input in computer then a new no should get printed by
adding one to each of its digit. If you encounter a 9, insert a 10
(don't carry over, just shift things around).
For example, 998 becomes 10109.
Bonus
This challenge is trivial to do if you map it to a string to iterate
over the input, operate, and then cast it back. Instead, try doing it
without casting it as a string at any point, keep it numeric (int,
float if you need it) only.
private static int Challange(int number)
{
int digits = (int)Math.Log10(number); //this is number of digits -1
int result = 0;
for (int i=0; i <= digits; i++)
{
int tens = (int)(Math.Pow(10, digits - i));
int currentDigit = ((number / tens) % 10);
if (currentDigit == 9) result *= 10;
result += (currentDigit + 1) * tens;
}
return result;
}
c# programming-challenge
edited 1 hour ago
t3chb0t
34.7k750121
asked 2 hours ago
nowakasdnowakasd
162
New contributor
nowakasd is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
$endgroup$
add a comment |
$begingroup$
Today I've found /r/dailyprogrammer and I've solved an easy challenge. I'm new to coding and I'm not sure if this is good way to solve this kind of problems. Could you, please, give me some hints? How to make my code more clear and readable? Thanks!
Challange description:
A number is input in computer then a new no should get printed by
adding one to each of its digit. If you encounter a 9, insert a 10
(don't carry over, just shift things around).
For example, 998 becomes 10109.
Bonus
This challenge is trivial to do if you map it to a string to iterate
over the input, operate, and then cast it back. Instead, try doing it
without casting it as a string at any point, keep it numeric (int,
float if you need it) only.
private static int Challange(int number)
{
int digits = (int)Math.Log10(number); //this is number of digits -1
int result = 0;
for (int i=0; i <= digits; i++)
{
int tens = (int)(Math.Pow(10, digits - i));
int currentDigit = ((number / tens) % 10);
if (currentDigit == 9) result *= 10;
result += (currentDigit + 1) * tens;
}
return result;
}
c# programming-challenge
edited 1 hour ago
t3chb0t
34.7k750121
asked 2 hours ago
nowakasdnowakasd
162
New contributor
nowakasd is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
$endgroup$
Today I've found /r/dailyprogrammer and I've solved an easy challenge. I'm new to coding and I'm not sure if this is good way to solve this kind of problems. Could you, please, give me some hints? How to make my code more clear and readable? Thanks!
Challange description:
A number is input in computer then a new no should get printed by
adding one to each of its digit. If you encounter a 9, insert a 10
(don't carry over, just shift things around).
For example, 998 becomes 10109.
Bonus
This challenge is trivial to do if you map it to a string to iterate
over the input, operate, and then cast it back. Instead, try doing it
without casting it as a string at any point, keep it numeric (int,
float if you need it) only.
private static int Challange(int number)
{
int digits = (int)Math.Log10(number); //this is number of digits -1
int result = 0;
for (int i=0; i <= digits; i++)
{
int tens = (int)(Math.Pow(10, digits - i));
int currentDigit = ((number / tens) % 10);
if (currentDigit == 9) result *= 10;
result += (currentDigit + 1) * tens;
}
return result;
}
c# programming-challenge
c# programming-challenge
edited 1 hour ago
t3chb0t
34.7k750121
asked 2 hours ago
nowakasdnowakasd
162
New contributor
nowakasd is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
edited 1 hour ago
t3chb0t
34.7k750121
asked 2 hours ago
nowakasdnowakasd
162
New contributor
nowakasd is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
edited 1 hour ago
t3chb0t
34.7k750121
edited 1 hour ago
t3chb0t
34.7k750121
edited 1 hour ago
t3chb0t
34.7k750121
34.7k750121
asked 2 hours ago
nowakasdnowakasd
162
New contributor
nowakasd is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
asked 2 hours ago
nowakasdnowakasd
162
asked 2 hours ago
nowakasdnowakasd
162
162
New contributor
nowakasd is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
New contributor
nowakasd is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
nowakasd is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
add a comment |
add a comment |
1 Answer
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$begingroup$
It works, but it's a bit tricky to follow the logic and work out why. If you work from the other end then you can avoid the Log and Pow and shifting the partial result, and I find that easier to read.
Challange is not a descriptive name. What does the method do? IncrementDigits might be a better name, for example.
answered 1 hour ago
Peter TaylorPeter Taylor
17.4k2862
$endgroup$
add a comment |
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1 Answer
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$begingroup$
It works, but it's a bit tricky to follow the logic and work out why. If you work from the other end then you can avoid the Log and Pow and shifting the partial result, and I find that easier to read.
Challange is not a descriptive name. What does the method do? IncrementDigits might be a better name, for example.
answered 1 hour ago
Peter TaylorPeter Taylor
17.4k2862
$endgroup$
add a comment |
$begingroup$
It works, but it's a bit tricky to follow the logic and work out why. If you work from the other end then you can avoid the Log and Pow and shifting the partial result, and I find that easier to read.
Challange is not a descriptive name. What does the method do? IncrementDigits might be a better name, for example.
answered 1 hour ago
Peter TaylorPeter Taylor
17.4k2862
$endgroup$
add a comment |
$begingroup$
It works, but it's a bit tricky to follow the logic and work out why. If you work from the other end then you can avoid the Log and Pow and shifting the partial result, and I find that easier to read.
Challange is not a descriptive name. What does the method do? IncrementDigits might be a better name, for example.
answered 1 hour ago
Peter TaylorPeter Taylor
17.4k2862
$endgroup$
It works, but it's a bit tricky to follow the logic and work out why. If you work from the other end then you can avoid the Log and Pow and shifting the partial result, and I find that easier to read.
Challange is not a descriptive name. What does the method do? IncrementDigits might be a better name, for example.
answered 1 hour ago
Peter TaylorPeter Taylor
17.4k2862
answered 1 hour ago
Peter TaylorPeter Taylor
17.4k2862
answered 1 hour ago
Peter TaylorPeter Taylor
17.4k2862
answered 1 hour ago
Peter TaylorPeter Taylor
17.4k2862
17.4k2862
add a comment |
add a comment |
nowakasd is a new contributor. Be nice, and check out our Code of Conduct.
nowakasd is a new contributor. Be nice, and check out our Code of Conduct.
nowakasd is a new contributor. Be nice, and check out our Code of Conduct.
nowakasd is a new contributor. Be nice, and check out our Code of Conduct.
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