DSA-in-December

✨ 𝗗𝗮𝘆 2: 𝗔𝗿𝗿𝗮𝘆, 𝟮𝗗 𝗔𝗿𝗿𝗮𝘆, 𝗠𝘂𝗹𝘁𝗶𝗱𝗶𝗺𝗲𝗻𝘀𝗶𝗼𝗻𝗮𝗹-𝗔𝗿𝗿𝗮𝘆✨

📌 What are arrays? In cases where there is a need to use several variables of same type, for storing, example, names or marks of ‘n’ students we use a data structure called arrays. Arrays are basically collection of elements having same name and same data type. Using arrays, saves us from the time and effort required to declare each of the element of array individually. Creating an array The syntax for declaring an array is: Data_type array_name [ array_size ] ; Example : float marks[5]; Here, we declared an array, marks, of floating-point type and size 5. Meaning, it can hold 5 floating-point values. Similarly, we can declare array of type int as follows: int age[10]; How are arrays stored? The elements of arrays are stored contiguously, i.e., at consecutive memory locations. The name of the array actually has the address of the first element of the array. Hence making it possible to access any element of the array using the starting address. Example: int age[ ] = {10, 14, 16, 18, 19};

✏️ 𝗙𝗼𝗿 𝗯𝗲𝘁𝘁𝗲𝗿 𝘂𝗻𝗱𝗲𝗿𝘀𝘁𝗮𝗻𝗱𝗶𝗻𝗴 𝗿𝗲𝗳𝗲𝗿 𝗳𝗼𝗹𝗹𝗼𝘄𝗶𝗻𝗴 𝗮𝗿𝘁𝗶𝗰𝗹𝗲𝘀 ;

1. https://www.geeksforgeeks.org/array-data-structure/ 2)https://www.tutorialspoint.com/data_structures_algorithms/array_data_structure.htm 3)https://www.w3schools.in/data-structures/data-structures-arrays 4)https://www.simplilearn.com/tutorials/data-structure-tutorial/two-dimensional-arrays 5)https://www.geeksforgeeks.org/multidimensional-arrays-c-cpp/

📽️ 𝗧𝘂𝘁𝗼𝗿𝗶𝗮𝗹 𝗟𝗶𝗻𝗸𝘀;

1. https://youtu.be/PyTK_g1l8V8
2. https://youtu.be/bR0NYdmMg94
3. https://youtu.be/NTHVTY6w2Co
4. https://youtu.be/6a39OjkCN5I 5)https://youtu.be/18Zt5I4S45o 6)https://youtu.be/Xx1tWbb37hY 7)https://youtu.be/CfqjAKN-AwI

👨‍💻 𝗤𝘂𝗲𝘀𝘁𝗶𝗼𝗻𝗶𝗻𝗴 𝗥𝗼𝘂𝗻𝗱 :

★ 𝟲 𝗽𝗿𝗼𝗴𝗿𝗮𝗺𝗺𝗶𝗻𝗴 𝗾𝘂𝗲𝘀𝘁𝗶𝗼𝗻𝘀 ★

𝗔𝗿𝗿𝗮𝘆

1. https://leetcode.com/problems/sum-of-all-odd-length-subarrays/
2. https://leetcode.com/problems/check-if-two-string-arrays-are-equivalent/

𝟮𝗗 𝗔𝗿𝗿𝗮𝘆

1. https://leetcode.com/problems/convert-1d-array-into-2d-array/
2. https://leetcode.com/problems/richest-customer-wealth/

𝗠𝘂𝗹𝘁𝗶𝗱𝗶𝗺𝗲𝗻𝘁𝗶𝗼𝗻𝗮𝗹 𝗔𝗿𝗿𝗮𝘆 1)https://www.hackerearth.com/practice/data-structures/arrays/multi-dimensional/practice-problems/algorithm/gift-for-almas-3-33d2f7c7/ 2)https://www.hackerearth.com/practice/data-structures/arrays/multi-dimensional/practice-problems/algorithm/binary-blocks-4b173d4a/