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Find XOR of all numbers in a given range
...s table for 4-bit numbers:
0000 <- 0 [a]
0001 <- 1 [1]
0010 <- 3 [a+1]
0011 <- 0 [0]
0100 <- 4 [a]
0101 <- 1 [1]
0110 <- 7 [a+1]
0111 <- 0 [0]
1000 <- 8 [a]
1001 <- 1 [1]
1010 <- 11 [a+1]
1011 <- 0 [0]
1100 <- 12 [a]
1101 <- 1 [1]
1110 <- 15 ...
Getting the array length of a 2D array in Java
...tring[] args) {
int[][] foo = new int[][] {
new int[] { 1, 2, 3 },
new int[] { 1, 2, 3, 4},
};
System.out.println(foo.length); //2
System.out.println(foo[0].length); //3
System.out.println(foo[1].length); //4
}
Column lengths differ per row. If you're backing...
How do I calculate square root in Python?
...
Merlin
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answered Mar 7 '12 at 2:50
smessingsmessin...
Android Studio suddenly cannot resolve symbols
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238
You've already gone down the list of most things that would be helpful, but you could try:
Ex...
Base64: What is the worst possible increase in space usage?
...the size of the base-64 representation of a string of size n is:
ceil(n / 3) * 4
So, for a 16kB array, the base-64 representation will be ceil(16*1024/3)*4 = 21848 bytes long ~= 21.8kB.
A rough approximation would be that the size of the data is increased to 4/3 of the original.
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Invalid syntax when using “print”? [duplicate]
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232
That is because in Python 3, they have replaced the print statement with the print function.
T...
Why is parenthesis in print voluntary in Python 2.7?
...ding.
*This print behavior in Python 2 can be changed to that of Python 3:
from __future__ import print_function
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UnicodeDecodeError when redirecting to file
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Can you have if-then-else logic in SQL? [duplicate]
...e1 WHERE project = 2
ELSE IF ((SELECT COUNT(*) FROM table1 WHERE project = 3) > 0)
SELECT product, price FROM table1 WHERE project = 3
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Python 3 Online Interpreter / Shell [closed]
...ike http://codepad.org/ or http://www.trypython.org/ which uses Python 3?
2 Answers
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