Questions tagged [string-processing]
Use this tag when the presented code focuses on string manipulations (such as concatenation, splitting, and extracting parts of a string) or on analyzing and manipulating the contents of strings (e.g., searching, matching against a pattern, and encoding / decoding).
17 questions
9votes
2answers
917views
A simple C++ function converting the environment variables in main() to an unordered_map
I had this program: ...
- 30.3k
5votes
2answers
144views
C++ arithmetic calculator built without resorting to tree structure as conventionally done, but by parsing input string and then std::stoi
Lately I came across a book exercise that asked to implement a calculator by resorting only to std::string manipulation. I avoided C++ streams as well, as they are ...
- 515
5votes
1answer
288views
Converting a char string to wchar_t string based on a given toWideStr() starting point
I'm working on a legacy code base and I came across a method in which I wanted to remove the chance of swallowing an exception. In the following I want to walk you through the refacoring process, ...
- 1,465
4votes
2answers
310views
A View over java.lang.String - improved take II
(This post elaborates on A string view over a Java String.) This time, I have incorporated both the great answers in the previous iteration: https://codereview.stackexchange.com/a/293506/58360 by ...
- 30.3k
5votes
2answers
553views
A View over java.lang.String
(This post has continuation at A string view over a Java String - improved take II.) This time, I have a simple string view class for faster operation on substrings in actual string objects: ...
- 30.3k
3votes
2answers
257views
Truncating/abbreviating strings in the middle with an ellipsis (…) (or other) separators with a fixed character limit
Problem For some user-facing string, I want to truncate it to some given maximum length (also useful for file name/path lengths on Windows etc.). However, I want to do it a little more elaborately ...
- 163
4votes
2answers
485views
Z-Function/ Algorithms on strings. C++
The problem: Given a string s. For each i from 1 to |s|, find the number of occurrences of its prefix of length i in the string. Input: The first line of input contains an integer q (1≤q≤10⁵) — the ...
- 43
0votes
2answers
124views
Advent of Code 2023 - Day 19: Aplenty (Part 1)
Description: The task involves processing a set of workflows, each comprising rules. These rules define conditions based on part ratings and dictate the destination workflow if the conditions are ...
- 10.1k
1vote
2answers
79views
Advent of Code 2023 - Day 15: Lens Library
Part 1: The task involves initializing the Lava Production Facility using an initialization sequence. The sequence consists of steps, each requiring the application of the Holiday ASCII String Helper ...
- 10.1k
1vote
1answer
57views
Advent of Code 2023 - Day 9: Mirage Maintenance
Part 1: The task involves analyzing an environmental report from an oasis using the Oasis And Sand Instability Sensor (OASIS). The report consists of multiple histories, each containing a sequence of ...
- 10.1k
1vote
1answer
61views
Advent of Code 2023 - Day 8: Haunted Wasteland (Part 1)
Description: The task involves navigating a haunted wasteland on a desert island using a camel. The objective is to escape from the current position (AAA) to the destination (ZZZ) by following left/...
- 10.1k
4votes
1answer
109views
Advent of Code 2023 - Day 6: Wait For It
Part One: The task involves organizing multiple toy boat races, each assigned a specific race time and a recorded distance. To surpass the existing record, participants must optimize the duration of ...
- 10.1k
2votes
1answer
136views
Advent of Code 2023 - Day 5: If You Give A Seed A Fertilizer (Part 1)
The task involves determining the lowest location number corresponding to a given set of seeds by following numerical mappings for soil, fertilizer, water, light, temperature, humidity, and location. ...
- 10.1k
4votes
2answers
171views
Advent of Code 2023 - Day 4: Scratchcards
Part 1: The task involves determining the total points of a set of scratchcards. Each scratchcard contains two lists of numbers: the winning numbers and the numbers the player has. Points are awarded ...
- 10.1k
6votes
2answers
226views
Advent of Code 2023 day 1: Trebuchet (Part 1 and 2) Follow-up
This is a follow-up to the question asked here: Advent of Code 2023 day 1: Trebuchet (Part 1 and 2) Changes made: The code no longer assumes that all lines will fit into a fixed-size buffer. Although ...
- 10.1k
