Topic: matrix-manipulation-problem / Level: beginner

• 51. Write a program to check if two matrices are inverses of each other.
• 52. Write a program to find the position of the maximum element in a matrix.
• 53. Write a program to find the position of the minimum element in a matrix.
• 54. Write a program to print the elements above the main diagonal of a square matrix.
• 55. Write a program to print the elements below the main diagonal of a square matrix.
• 56. Write a program to reverse the order of rows in a matrix.
• 57. Write a program to reverse the order of columns in a matrix.
• 58. Write a program to find the average of each row in a matrix.
• 59. Write a program to find the average of each column in a matrix.
• 60. Write a program to find the determinant of a 1x1 matrix.
• 61. Write a program to find the trace of a 3x3 matrix.
• 62. Write a program to multiply two square matrices of size 2x2.
• 63. Write a program to multiply two square matrices of size 3x3.
• 64. Write a program to multiply two rectangular matrices.
• 65. Write a program to perform scalar addition on a matrix.
• 66. Write a program to perform scalar subtraction on a matrix.
• 67. Write a program to count the number of positive elements in a matrix.
• 68. Write a program to count the number of negative elements in a matrix.
• 69. Write a program to create a matrix with all elements initialized to 1.
• 70. Write a program to create a matrix with all elements initialized to 0.
• 71. Write a program to calculate the sum of diagonal elements of a matrix.
• 72. Write a program to create a matrix with elements in a checkerboard pattern (alternating 0s and 1s).
• 73. Write a program to shift all elements of a matrix by one position to the left.
• 74. Write a program to shift all elements of a matrix by one position to the right.
• 75. Write a program to shift all elements of a matrix by one position up.
• 76. Write a program to shift all elements of a matrix by one position down.
• 77. Write a program to print the elements in the border of a matrix.
• 78. Write a program to replace all the even numbers in a matrix with 0.
• 79. Write a program to replace all the odd numbers in a matrix with 1.
• 80. Write a program to print the matrix in column-major order.
• 81. Write a program to create a matrix of size m x n filled with random integers.
• 82. Write a program to sort all elements of a matrix in ascending order.
• 83. Write a program to sort all elements of a matrix in descending order.
• 84. Write a program to calculate the product of elements in each row of a matrix.
• 85. Write a program to calculate the product of elements in each column of a matrix.
• 86. Write a program to check if all elements of a matrix are positive.
• 87. Write a program to check if all elements of a matrix are negative.
• 88. Write a program to replace negative elements in a matrix with their absolute value.
• 89. Write a program to find the sum of elements in the left half of a square matrix.
• 90. Write a program to find the sum of elements in the right half of a square matrix.
• 91. Write a program to check if a matrix is a diagonal matrix.
• 92. Write a program to check if two matrices are equal without using loops.
• 93. Write a program to extract the diagonal elements from a matrix and store them in an array.
• 94. Write a program to convert a matrix into its diagonal form.
• 95. Write a program to count the number of positive numbers in each row of a matrix.
• 96. Write a program to count the number of negative numbers in each row of a matrix.
• 97. Write a program to replace all odd numbers in a matrix with -1.
• 98. Write a program to rotate a square matrix by 270 degrees.
• 99. Write a program to check if the sum of the elements in the main diagonal equals the sum of the elements in the anti-diagonal.
• 100. Write a program to count the number of even elements in each row of a matrix.

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• Intermediate
• Advanced