
Database System Concepts
7th Edition
ISBN: 9780078022159
Author: Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher: McGraw-Hill Education
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Conisder the Python string s = ”university”.
What is Python output for the following commands?
1) s.index(’i’)
2) s[-1]
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- PYTHON Problem Statement Given a list of numbers (nums), for each element in nums, calculate how many numbers in the list are smaller than it. Write a function that does the calculation and returns the result (as a list). For example, if you are given [6,5,4,8], your function should return [2, 1, 0, 3] because there are two numbers less than 6, one number less than 5, zero numbers less than 4, and three numbers less than 8. Sample Input smaller_than_current([6,5,4,8]) Sample Output [2, 1, 0, 3]arrow_forwardMatch the std::string constructor on right to its function on left. Source: https://cplusplus.com/reference/string/string/string/ E string() string (const string& str) string (const char* s) string (size_t n, char c) [Choose] [Choose ] constructs a copy of str. constructs an empty string, with a length of zero characters. copies the null-terminated character sequence (C-string) pointed by s. fills the string with n consecutive copies of character c. [Choose ]arrow_forwardWhich of the following are true? O The C-library has many functions that are useful in manipulating strings. V If a and b are two different C-string variables, the value in a can be assigned the value in b with the following C-statement: a = b; %3D O The length of the char array holding the string must be at least one character longer than the string itself. O An array identifier cannot be used as a pointer. V The identifier, name, of a C-string is also a pointer to a char data type. The ending character in a C-string must be the newline character, '\n'. O The name of a 1-D array is a pointer to the data type of the array, while the name of a 2-D array is a pointer to a 1-D array of the data type.arrow_forward
- P1: this is data structure of algorithms subject and topic is all about Stack Applicationsarrow_forwardQ/Complete the following code in Python language (biometrics) for voice recognition and apply the code, mentioning the approved source if it exists import osimport numpy as npfrom pyAudioAnalysis import audioBasicIO, audioFeatureExtraction, audioTrainTestfrom pydub import AudioSegment# Function to capture and save voice samplesdef capture_voice_samples(num_samples, speaker_name):os.makedirs("speakers", exist_ok=True)os.makedirs(f"speakers/{speaker_name}", exist_ok=True)for i in range(num_samples):input(f"Press Enter and start speaking for sample {i + 1}...")# Recording audio using pyAudioAnalysisaudio = audioBasicIO.record_audio(4, 44100)filepath = f"speakers/{speaker_name}/sample_{i + 1}.wav"audioBasicIO.write_audio_file(filepath, audio, 44100)print(f"Sample {i + 1} saved for {speaker_name}")# Function to extract features from voice samplesdef extract_features():speakers = [d for d in os.listdir("speakers") if os.path.isdir(os.path.join("speakers", d))]all_features = []all_labels =…arrow_forwardin python create function that has a parameter of dict[str, str] key should be a name value should be a word when given a dict of names and word, function should return the word that is most common ******************************* no using key, value for loops no .get, .items, .defaultset no importing builtins no using .values, .keys, or .index must do it through dictionary cycling ************************** should return a stringarrow_forward
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