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5,469 c interview questions shared by candidates

1- Deep discussion on current project as role offered was also of same type. 2- Smart pointer discussion, write the code for same. I wrote for int, then they asked for generic one with template. 3- why operators needs to overload in smart pointer class. 4 -in normal pointers, why do we need to give type of pointer even if they store only numeric data that is address. 5- singleton class concept, write code for the same. 6-How do we restrict creation of object in heap? 7- Write copy constructor body, why do we need? 8- Difference between vector and list. Which one is good and why ? 9- internal implementation of map, set and unordered map. 10- difference between map and unordered map 11- write a program to print pair of elements whose sum is 10 from given set of array elements. 12- sql: find third highest unique salary from employee table
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Macro FX Trade BTS developer C++

Interviewed at Barclays

4★
Mar 23, 2023

1- Deep discussion on current project as role offered was also of same type. 2- Smart pointer discussion, write the code for same. I wrote for int, then they asked for generic one with template. 3- why operators needs to overload in smart pointer class. 4 -in normal pointers, why do we need to give type of pointer even if they store only numeric data that is address. 5- singleton class concept, write code for the same. 6-How do we restrict creation of object in heap? 7- Write copy constructor body, why do we need? 8- Difference between vector and list. Which one is good and why ? 9- internal implementation of map, set and unordered map. 10- difference between map and unordered map 11- write a program to print pair of elements whose sum is 10 from given set of array elements. 12- sql: find third highest unique salary from employee table

1-How do we restrict creation of heap objects in a class without using static variable. 2-what is heap and stack 3-why pointers have different data types even if pointer is stored with same memory space. 4-Smart pointer details and code for generic smart pointer 5-write a program to select pair of numbers such that sum should be 10. Array of 50 elements given, we need to create pair of two from array and once pair is created those elements should not be reused 6-select third highest salary of employees from table 7-diff between stack and queue 8-deep understanding of current project
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AVP-C++

Interviewed at Barclays

4★
Mar 15, 2023

1-How do we restrict creation of heap objects in a class without using static variable. 2-what is heap and stack 3-why pointers have different data types even if pointer is stored with same memory space. 4-Smart pointer details and code for generic smart pointer 5-write a program to select pair of numbers such that sum should be 10. Array of 50 elements given, we need to create pair of two from array and once pair is created those elements should not be reused 6-select third highest salary of employees from table 7-diff between stack and queue 8-deep understanding of current project

Normalize a file path/directory: /// /// /// Normalizes the path, meaning that you reduce any unnecessary directory. /// For example, given the value notneeded1/notneeded2/../../hello you would /// return hello. /// /// /// input string /// Normalized string /* * Sample Directory structure * - home * -- documents * -- desktop * -- myMedia * ----- photos * ----- videos * ----- music * -- downloads * /home/myMedia/photos/../../documents -> /home/documents * /home/myMedia/photos/../documents/.. -> /home/myMedia * /home/myMedia/../documents -> /home/documents * ../home -> ../home * home/../../final -> ../final * /home/myMdeia/documents -> /home/myMdeia/documents * Case 1: * C:\ [current working directory] * cd hello [command operating on cwd] * C:\hello [final path] * Case 2: * C:\ [current working directory] * cd notneeded1/notneeded2/../../hello [command operating on cwd] * C:\hello [final path] */
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Junior Software Developer (C++)

Interviewed at Accelya Group

3.4★
Aug 15, 2024

Normalize a file path/directory: /// /// /// Normalizes the path, meaning that you reduce any unnecessary directory. /// For example, given the value notneeded1/notneeded2/../../hello you would /// return hello. /// /// /// input string /// Normalized string /* * Sample Directory structure * - home * -- documents * -- desktop * -- myMedia * ----- photos * ----- videos * ----- music * -- downloads * /home/myMedia/photos/../../documents -> /home/documents * /home/myMedia/photos/../documents/.. -> /home/myMedia * /home/myMedia/../documents -> /home/documents * ../home -> ../home * home/../../final -> ../final * /home/myMdeia/documents -> /home/myMdeia/documents * Case 1: * C:\ [current working directory] * cd hello [command operating on cwd] * C:\hello [final path] * Case 2: * C:\ [current working directory] * cd notneeded1/notneeded2/../../hello [command operating on cwd] * C:\hello [final path] */

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