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53 | 53 | ### Bits Manipulation
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54 | 54 | | # | Title | Code | Resource | Video | Difficulty |
|
55 | 55 | |-----|----------------|----------|---------------|---------|-------------|
|
| 56 | +|1| [Find first set bit](https://practice.geeksforgeeks.org/problems/find-first-set-bit-1587115620/1)| | | |:green_square: Easy| Bits, Modulo | |
| 57 | +|2| [Rightmost different bit ](https://practice.geeksforgeeks.org/problems/rightmost-different-bit-1587115621/1)| | | |:green_square: Easy| XOR, Modulo | |
| 58 | +|3| [Check whether K-th bit is set or not ](https://practice.geeksforgeeks.org/problems/check-whether-k-th-bit-is-set-or-not-1587115620/1)| | | |:green_square: Easy| XOR, Modulo | |
| 59 | +|4| [Count total set bits ](https://practice.geeksforgeeks.org/problems/count-total-set-bits-1587115620/1)| | | |:orange_square: Medium| RIght shift | |
| 60 | +|5| [Bit Difference ](https://practice.geeksforgeeks.org/problems/bit-difference-1587115620/1)| | | |:green_square: Easy| Bits | |
| 61 | +|6| [Number is sparse or not ](https://practice.geeksforgeeks.org/problems/number-is-sparse-or-not-1587115620/1)| | | |:green_square: Easy| Bits | |
| 62 | +|7| [Longest Consecutive 1's ](https://practice.geeksforgeeks.org/problems/longest-consecutive-1s-1587115620/1)| | | |:green_square: Easy| Bits | |
| 63 | +|8| [ Gray Code ](https://practice.geeksforgeeks.org/problems/gray-code4907/1)| | | |:green_square: Easy| Xor, Right Shift | |
| 64 | +|9| [Gray to Binary equivalent ](https://practice.geeksforgeeks.org/problems/gray-to-binary-equivalent-1587115620/1)| | | |:green_square: Easy| Xor, Right Shift | |
| 65 | +|10| [Power of 2](https://practice.geeksforgeeks.org/problems/power-of-2-1587115620/1)| | | |:green_square: Easy| AND | |
| 66 | +|11| [Swap all odd and even bits](https://practice.geeksforgeeks.org/problems/swap-all-odd-and-even-bits-1587115621/1)| | | |:green_square: Easy| OR | |
| 67 | +|12| [Maximum AND Value ](https://practice.geeksforgeeks.org/problems/maximum-and-value-1587115620/1)| | | |:orange_square: Medium| AND | |
56 | 68 |
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57 | 69 | ### Recursion
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58 | 70 | | # | Title | Code | Resource | Video | Difficulty |
|
59 | 71 | |-----|----------------|----------|---------------|---------|-------------|
|
| 72 | +|1| [Print 1 to n without using loops](https://practice.geeksforgeeks.org/problems/print-1-to-n-without-using-loops3621/1)| | | |:green_square: Easy| Recursion| |
| 73 | +|2| [Sum Of Digits ](https://practice.geeksforgeeks.org/problems/sum-of-digits1742/1)| | | |:green_square: Easy|Recursion| |
| 74 | +|3| [Count Total Digits in a Number ](https://practice.geeksforgeeks.org/problems/count-total-digits-in-a-number/1)| | | |:green_square: Easy|Recursion| |
| 75 | +|4| [Digital Root ](https://practice.geeksforgeeks.org/problems/digital-root/1/)| | | |:orange_square: Medium|Recursion| |
| 76 | +|5| [Fibonacci Using Recursion](https://practice.geeksforgeeks.org/problems/fibonacci-using-recursion/1/)| | | |:green_square: Easy|Recursion| |
| 77 | +|6| [Tower Of Hanoi](https://practice.geeksforgeeks.org/problems/tower-of-hanoi-1587115621/1)| | | |:orange_square: Medium|Recursion| |
| 78 | +|7| [Josephus problem](https://practice.geeksforgeeks.org/problems/josephus-problem/1)| | | |:orange_square: Medium|Recursion| |
60 | 79 |
|
61 | 80 | ### Arrays
|
62 | 81 | | # | Title | Code | Resource | Video | Difficulty |
|
|
73 | 92 | ### Matrix
|
74 | 93 | | # | Title | Code | Resource | Video | Difficulty |
|
75 | 94 | |-----|----------------|----------|---------------|---------|-------------|
|
| 95 | +|1|[What is Multidimensional Arrays c++](https://www.geeksforgeeks.org/multidimensional-arrays-c-cpp/)||[Pdf](https://github.com/Prince-1501/Hello_world-Competiitve-Programming/blob/master/Leetcode/multi%20dimension%20array.pdf)|[Video](https://youtu.be/TfE2c7SXaUo)|:green_square: Easy| Matrix, Array | |
| 96 | +|2|[Sum of upper and lower triangles ](https://practice.geeksforgeeks.org/problems/sum-of-upper-and-lower-triangles-1587115621/1)||[Pdf](https://github.com/Prince-1501/Hello_world-Competiitve-Programming/blob/master/Leetcode/Sum%20of%20upper%20and%20lower%20triangles.pdf)|[Solution](https://youtu.be/YuqtMC6Nvg8)|:green_square: Easy| Matrix, Array| |
| 97 | +|3|[Transpose of Matrix ](https://practice.geeksforgeeks.org/problems/transpose-of-matrix-1587115621/1)||[Pdf](https://github.com/Prince-1501/Hello_world-Competiitve-Programming/blob/master/Leetcode/Transpose%20of%20Matrix.pdf)|[Solution](https://youtu.be/n3-XWx-Inns)|:green_square: Easy| Matrix, Array| |
| 98 | +|4|[Rotate by 90 degree ](https://practice.geeksforgeeks.org/problems/rotate-by-90-degree-1587115621/1)||[Pdf](https://github.com/Prince-1501/Hello_world-Competiitve-Programming/blob/master/Leetcode/Rotate%20by%2090%20degree.pdf)|[Solution](https://youtu.be/yIUryrv2I7I)|:green_square: Easy| Matrix, Array| |
| 99 | +|5|[Multiply the matrices ](https://practice.geeksforgeeks.org/problems/multiply-the-matrices-1587115620/1)| [c++](https://github.com/Prince-1501/Hello_world-Competiitve-Programming/blob/master/Leetcode/Multiply%20two%20matrices.cpp)|[Pdf](https://github.com/Prince-1501/Hello_world-Competiitve-Programming/blob/master/Leetcode/Multiply%20two%20matrices.pdf)|[Solution](https://youtu.be/DvG9SF2VXL4)|:green_square: Easy| Matrix, Array| |
| 100 | +|6|[ Spirally traversing a matrix ](https://practice.geeksforgeeks.org/problems/spirally-traversing-a-matrix-1587115621/1)| [c++](https://github.com/Prince-1501/Hello_world-Competiitve-Programming/blob/master/Leetcode/Spirally%20traversing%20a%20matrix.cpp)|[Pdf](https://github.com/Prince-1501/Hello_world-Competiitve-Programming/blob/master/Leetcode/Spirally%20traversing%20a%20matrix%20.pdf)|[Solution](https://youtu.be/4mSTiSBk_iY)|:orange_square: Medium| Matrix, Array| |
| 101 | +|7|[ Interchanging the rows of a Matrix ](https://practice.geeksforgeeks.org/problems/reversing-the-rows-of-a-matrix-1587115621/1)| [c++](https://github.com/Prince-1501/Hello_world-Competiitve-Programming/blob/master/Leetcode/Interchanging%20the%20rows%20of%20a%20Matrix.cpp)|[Pdf](https://github.com/Prince-1501/Hello_world-Competiitve-Programming/blob/master/Leetcode/Interchanging%20The%20Rows%20of%20a%20Matrix.pdf)|[Solution](https://youtu.be/72UDspLEZAg)|:green_square: Easy| Matrix, Array| |
| 102 | +|8|[ Matrix Interchange ](https://practice.geeksforgeeks.org/problems/matrix-interchange/1)||| Practice |:green_square: Easy| Matrix, Array| |
| 103 | +|9|[ Search in a row-column sorted Matrix ](https://practice.geeksforgeeks.org/problems/search-in-a-matrix-1587115621/1)| [c++](https://github.com/Prince-1501/Hello_world-Competiitve-Programming/blob/master/Leetcode/Search%20in%20a%20row-column%20sorted%20Matrix.cpp)|[Pdf](https://github.com/Prince-1501/Hello_world-Competiitve-Programming/blob/master/Leetcode/Search%20in%20a%20row-column%20sorted%20Matrix.pdf)|[Solution](https://youtu.be/Gy0WeuIuTg4)|:orange_square: Medium| Matrix, Array| |
| 104 | +|10|[ Boolean Matrix ](https://practice.geeksforgeeks.org/problems/boolean-matrix-problem-1587115620/1)| [c++](https://github.com/Prince-1501/Hello_world-Competiitve-Programming/blob/master/Leetcode/Boolean%20Matrix.cpp)|[Pdf](https://github.com/Prince-1501/Hello_world-Competiitve-Programming/blob/master/Leetcode/Boolean%20Matrix.pdf)|[Solution](https://youtu.be/TBTNZXzwpP8)|:orange_square: Medium| Matrix, Array| |
| 105 | + |
| 106 | + |
| 107 | + |
76 | 108 |
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77 | 109 | ### Hashing
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78 | 110 | | # | Title | Code | Resource | Video | Difficulty |
|
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