# C++ Vector: Exercises, Practice, Solution

## C++ Vector [6 exercises with solution]

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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
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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
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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
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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
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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
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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
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CPP Code Editor:

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