C++ Vector: Exercises, Practice, Solution

C++ Vector [6 exercises with solution]

[An editor is available at the bottom of the page to write and execute the scripts. Go to the editor]

The C++ Standard Library vector class is a class template for sequence containers, it stores elements of a given type in a linear arrangement, and allows fast random access to any element.

1. Write a C++ program to check whether numbers in a vector can be rearranged so that each number appears exactly once in a consecutive list of numbers. Return true otherwise false.
Example:
1 2 5 0 3 6 7
Check consecutive numbers in the said vector! 0
Click me to see the sample solution

2. Write a C++ program that returns the elements in a vector that are strictly smaller than their adjacent left and right neighbours.
Example:
Original Vector elements:
1 2 5 0 3 1 7
Vector elements that are smaller than its adjacent neighbours:
0
1
Click me to see the sample solution

3. Write a C++ program to create an n x n matrix by taking an integer (n) as input from the user.
Example:
Input: 2
Input an integer value: Create an n x n matrix by said integer:
2 2
2 2
Click me to see the sample solution

4. Write a C++ program to capitalize the first character of each element of a given string vector. Return the vector.
Example:
Original Vector elements:
red green black white Pink
Capitalize the first character of each vector element:
Red Green Black White Pink
Click me to see the sample solution

5. Write a C++ program to verify that all of the letters in the second string appear in the first string as well. Return true otherwise false.
Example:
Original String elements: Python Py
Check - First string contains all letters from second string: true
Click me to see the sample solution

6. Write a C++ program that takes a vector of strings and returns only those strings that contain a number(s). Return an empty vector if none.
Example:
Original Vector elements:
red green23 1black white
Find strings that contain a number(s) from the said vector:
green23 1black
Click me to see the sample solution

CPP Code Editor:

More to Come !

Do not submit any solution of the above exercises at here, if you want to contribute go to the appropriate exercise page.