Design an NFA that accepts the following language: {w ∈ Σ ∗ | at least one of the last 3 positions of w is a 1 }. For example, following are some of
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Q 4
Computer Science
Design an NFA that accepts the following language: {w ∈ Σ ∗ | at least one of the last 3 positions of w is a 1 }. For example, following are some of the strings in the langauge: 1, 10, 101, 0001, and 00110.
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- C code blocks Implement a function which receives a character array and determines if the word is a palindrome or not. A palindrome is a string that is spelt the same way forwards and backwards (see the example below). The function should return 1 if the character array is a palindrome and 0 if it is not. Write the entire function in the space below. Your answer should not include the function prototype, the main function or any include statements. The function should not contain any printf statements. Define your function in the same way as the given function prototype. Function prototype: int palindrome(char a[]); For example: Input Result hello 0 radar 1 acca 119. Given: Σ = {0, 1}, write regular expressions for the following languages: Strings that have a length of at most three. Strings that have a length divisible by 3. Strings that have no more than two 0s. Strings that do not end with 11. Strings that consist of only 1s and interpreted as a binary number are even4. Enumerate the first four strings in the following languages, where E = {0, 1}: Let L2 = {w: w begins with 1} Let L3 = {w: w contains exactly one 1} a) LL3 b) L,* c) L2N L; d) L2 U L3 e) L2C
- Explain with an example the situation where using read() is appropriate andalso an example where readlines() is appropriate.String Implement a custom type for representing strings in C++. Allow following operations as well as operators, considering dynamic memory allocation: Operations: • length: determine the length of string upper: convert the string to upper case • lower: convert the string to lower case • at: return character at a given index • substring: extract a substring given start and end • index: find starting index of a substring • compare: compare two strings concat: concatenate/append the argument after current string. Cater cases for different data types such as String, C-string, char, int, float prepend: concatenate/append the argument before current string. Cater cases for different data types such as String, char, int, float Operators: + : for concatenation and prepend operations taking into account different data types and order of argumets = : for assignment • =, !=, : for comparison operations ] : for access to character at a given index >> and << : for output and input a stringPlease code in C Pascal’s Triangle Version 2 The Pascal triangle can be used to compute the coefficients of the terms in the expansion (a + b)n. For example, (a + b)2 = a2 + 2ab + b2 where 1, 2, and 1 are coefficients. Write a C program that creates a two-dimensional matrix a representing the Pascal triangle of size n. For example, a Pascal triangle of size 10 is shown below:
- regular expressions Exercise: Describe the languages denoted by the following regular expressions: ◦a) a(a|b)*a..a) a*ba*ba*ba*.b) (aa|bb)*((ab|ba)(aa|bb)*(ab|ba)(aa|bb)*)*. and gave me example for a and b contain 20 StringPython Need help with code A rule has three parts: •name –a simple name for the rule (e.g., up, left, down, right) •precondition function –a Boolean function that accepts a state and returns true if the rule is applicable to state •action function –a function that accepts a state and returns the successor state obtained by applying the rule. You can use these rules to implement functions such as applicable-rule, which returns a list of the rules applicable to a given state, and successor-state, which returns the successor state for a given state and rule. Question: Encode the rules for the sliding-tile puzzle. Remember that it is easiest to consider moving the empty space up, left, down, or right. Using these rules, write routines to determine the rules applicable to a state and the successor state given a state and rule to apply. Note that you could implement these as iterators or have them return lists (or vectors) or rules and states.convert this C++ codes in C language #include <iostream>#include <string>using namespace std; const string EMPTY = ""; const string X[] = { EMPTY, "One ", "Two ", "Three ", "Four ", "Five ", "Six ", "Seven ", "Eight ", "Nine ", "Ten ", "Eleven ", "Twelve ", "Thirteen ", "Fourteen ", "Fifteen ", "Sixteen ", "Seventeen ", "Eighteen ", "Nineteen " }; const string Y[] = { EMPTY, EMPTY, "Twenty ", "Thirty ", "Forty ", "Fifty ", "Sixty ", "Seventy ", "Eighty ", "Ninety " }; // Function to convert a single-digit or two-digit number into wordsstring convertToDigit(int n, string suffix){ // if `n` is zero if (n == 0) { return EMPTY; } // split `n` if it is more than 19 if (n > 19) { return Y[n / 10] + X[n % 10] + suffix; } else { return X[n] + suffix; }} // Function to convert a given number (max 9-digits) into wordsstring convert(unsigned long long int n){ // string…
- Define a C++ language float literal using regular expression. A float literal in C language has an optional exponent part. If a float literal is written without exponent part, then it must have a decimal point which can appear at the start, at the end or in the middle of digits, as in following examples: 123.456 .456 456. If float literal is written with exponent, then decimal point in mantissa part is optional, and exponent is a whole number with optional sign, as in following examples: 123e78 123e+78 123e-78 123.456e78 .456e78 456.e78Define a C++ language float literal using regular expression. A float literal in C language has an optional exponent part. If a float literal is written without exponent part, then it must have a decimal point which can appear at the start, at the end or in the middle of digits, as in following examples: 123.456 .456 456. If float literal is written with exponent, then decimal point in mantissa part is optional, and exponent is a whole number with optional sign, as in following examples: 123e78 123e+78 123e-78 123.456e78 .456e78 456.e78 Subject : Compiler ConstructionC program Implement function rotate that takes a string argument g and an integer argument f, and rotates the string g to the left by f times. For example, the code char j[] = "systems"; rotate(s, 3); will change j into "temssys", while the code chare[] = "abcd"; rotate(t, 1); will change e into "bcda" void rotate(char *g, int f)