31. Which cipher is represented by the following function?
public class Cipher
{
public static String encrypt(String text, final String key)
{
String res = "";
text = text.toUpperCase();
for (int i = 0, j = 0; i < text.length(); i++)
{
char c = text.charAt(i);
if (c < 'A' || c > 'Z')
continue;
res += (char) ((c + key.charAt(j) - 2 * 'A') % 26 + 'A');
j = ++j % key.length();
}
return res;
}
public class Cipher
{
public static String encrypt(String text, final String key)
{
String res = "";
text = text.toUpperCase();
for (int i = 0, j = 0; i < text.length(); i++)
{
char c = text.charAt(i);
if (c < 'A' || c > 'Z')
continue;
res += (char) ((c + key.charAt(j) - 2 * 'A') % 26 + 'A');
j = ++j % key.length();
}
return res;
}32. What is the code rate of a repetition Hamming code (3, 1)?
33. To which type of problems does quick hull belong to?
34. What is route cipher?
35. By what factor time complexity is reduced when we apply square root decomposition to a code?
36. Who invented the inclusion-exclusion principle to solve the Hamiltonian path problem?
37. In which of the following cipher the plain text and the ciphered text does not have a same number of letters?
38. What is the name of special procedural signals that are used to indicate changes in communications protocol status?
39. A biconnected graph contains how many cut vertices?
40. What happens when a free man approaches a married woman?
Read More Section(Miscellaneous on Data Structures)
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- Miscellaneous on Data Structures - Section 1
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- Miscellaneous on Data Structures - Section 10
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- Miscellaneous on Data Structures - Section 12