| 1 | ○ | Import NumPy | Easy |
| 2 | ○ | NumPy Version | Easy |
| 3 | ○ | Null Vector of Size 10 | Easy |
| 4 | ○ | Memory Size of an Array | Easy |
| 5 | ○ | Documentation of np.add | Easy |
| 6 | ○ | Null Vector, Fifth Value 1 | Easy |
| 7 | ○ | Range Vector 10–49 | Easy |
| 8 | ○ | Reverse a Vector | Easy |
| 9 | ○ | 3×3 Matrix 0–8 | Easy |
| 10 | ○ | Indices of Non-Zero Elements | Easy |
| 11 | ○ | Identity Matrix | Easy |
| 12 | ○ | 3×3×3 Random Array | Easy |
| 13 | ○ | Min and Max | Easy |
| 14 | ○ | Mean Value | Easy |
| 15 | ○ | 1 on Border, 0 Inside | Easy |
| 16 | ○ | Add a Zero Border | Easy |
| 17 | ○ | NaN Expression Results | Easy |
| 18 | ○ | Values Below the Diagonal | Easy |
| 19 | ○ | Checkerboard Pattern | Easy |
| 20 | ○ | Unravel 100th Index | Easy |
| 21 | ○ | Checkerboard with tile() | Easy |
| 22 | ○ | Normalize a Matrix | Easy |
| 23 | ○ | RGBA dtype Size | Easy |
| 24 | ○ | Matrix Product | Easy |
| 25 | ○ | Negate Elements 3–8 | Easy |
| 26 | ○ | Builtin sum vs np.sum | Easy |
| 27 | ○ | Which Expressions Are Legal? | Easy |
| 28 | ○ | Results of Edge Expressions | Easy |
| 29 | ○ | Round Away From Zero | Easy |
| 30 | ○ | Common Values | Easy |
| 31 | ○ | Ignore NumPy Warnings | Easy |
| 32 | ○ | sqrt(-1) vs emath.sqrt(-1) | Easy |
| 33 | ○ | Yesterday and Tomorrow | Easy |
| 34 | ○ | Dates in July 2016 | Medium |
| 35 | ○ | Compute ((A+B)*(-A/2)) | Medium |
| 36 | ○ | Integer Part | Medium |
| 37 | ○ | Rows Ranging 0–4 | Medium |
| 38 | ○ | Build Array from Generator | Easy |
| 39 | ○ | Vector 0–1 Both Excluded | Medium |
| 40 | ○ | Sort a Vector | Medium |
| 41 | ○ | Sum with add.reduce | Medium |
| 42 | ○ | Are Two Arrays Equal? | Medium |
| 43 | ○ | Make an Array Read-Only | Medium |
| 44 | ○ | Cartesian to Polar | Medium |
| 45 | ○ | Replace Max with 0 | Medium |
| 46 | ○ | Coordinate Grid | Medium |
| 47 | ○ | Cauchy Matrix Determinant | Medium |
| 48 | ○ | Min/Max of int8 | Medium |
| 49 | ○ | Full Array as String | Medium |
| 50 | ○ | Closest Value to a Scalar | Medium |
| 51 | ○ | Position + Color Struct | Medium |
| 52 | ○ | Point-by-Point Distances | Medium |
| 53 | ○ | Float32 to Int32 In Place | Medium |
| 54 | ○ | Parse a Messy CSV | Medium |
| 55 | ○ | Enumerate a 2D Array | Medium |
| 56 | ○ | 2D Gaussian Array | Medium |
| 57 | ○ | Place p Elements Randomly | Medium |
| 58 | ○ | Subtract Row Means | Medium |
| 59 | ○ | Sort by nth Column | Medium |
| 60 | ○ | Has Null Columns? | Medium |
| 61 | ○ | Nearest Value | Medium |
| 62 | ○ | Sum via Iterator | Medium |
| 63 | ○ | Array with a Name | Medium |
| 64 | ○ | Add 1 at Indexed Positions | Hard |
| 65 | ○ | Accumulate by Index List | Hard |
| 66 | ○ | Count Unique Colors | Medium |
| 67 | ○ | Sum Over Last Two Axes | Hard |
| 68 | ○ | Means of Subsets | Hard |
| 69 | ○ | Diagonal of a Dot Product | Hard |
| 70 | ○ | Interleave 3 Zeros | Hard |
| 71 | ○ | Multiply (5,5,3) by (5,5) | Hard |
| 72 | ○ | Swap Two Rows | Hard |
| 73 | ○ | Unique Triangle Segments | Hard |
| 74 | ○ | Invert a bincount | Hard |
| 75 | ○ | Sliding Window Average | Hard |
| 76 | ○ | Rolling Windows (shift by 1) | Hard |
| 77 | ○ | Negate Float Array In Place | Hard |
| 78 | ○ | Distance Point to Lines | Hard |
| 79 | ○ | Distance Points to Lines | Hard |
| 80 | ○ | Centered Subpart with Fill | Hard |
| 81 | ○ | Generate Shifted Rows | Hard |
| 82 | ○ | Matrix Rank | Hard |
| 83 | ○ | Most Frequent Value | Medium |
| 84 | ○ | All Contiguous 3×3 Blocks | Hard |
| 85 | ○ | Make a Matrix Symmetric | Hard |
| 86 | ○ | Sum of p Matrix Products | Hard |
| 87 | ○ | Block-Sum (4×4 blocks) | Hard |
| 88 | ○ | Game of Life Step | Hard |
| 89 | ○ | n Largest Values | Hard |
| 90 | ○ | Cartesian Product | Hard |
| 91 | ○ | Record Array from Array | Hard |
| 92 | ○ | Cube Each Element | Hard |
| 93 | ○ | Rows Containing Each Row of B | Hard |
| 94 | ○ | Rows with Unequal Values | Hard |
| 95 | ○ | Ints to Binary Matrix | Hard |
| 96 | ○ | Extract Unique Rows | Hard |
| 97 | ○ | Outer Product with einsum | Hard |
| 98 | ○ | Equidistant Path Sampling | Hard |
| 99 | ○ | Multinomial Rows | Hard |
| 100 | ○ | Bootstrap Confidence Interval | Hard |
| 101 | ○ | Full Array Like a Prototype | Easy |
| 102 | ○ | Reproducible Random Integers (Generator API) | Easy |
| 103 | ○ | Binomial Draws (Generator API) | Medium |
| 104 | ○ | Save and Load a .npy Array | Easy |
| 105 | ○ | Save Multiple Named Arrays with savez | Medium |
| 106 | ○ | Selective CSV Import | Medium |
| 107 | ○ | Impute Missing Values with the Column Mean | Medium |
| 108 | ○ | Delete Rows and Columns | Easy |
| 109 | ○ | Sort Rows by a Given Column | Easy |
| 110 | ○ | Locate Elements Matching a Condition | Easy |
| 111 | ○ | Stack Two Vectors as Rows | Easy |
| 112 | ○ | Concatenate Two Vectors End-to-End | Easy |
| 113 | ○ | Stack Two Matrices Along a New Axis | Medium |
| 114 | ○ | Count Occurrences of Each Unique Value | Easy |
| 115 | ○ | Index of First Occurrence of Each Unique Value | Easy |
| 116 | ○ | Weighted Average | Easy |
| 117 | ○ | Correlation Matrix Between Rows | Medium |
| 118 | ○ | Histogram Bin Counts | Easy |
| 119 | ○ | Peak-to-Peak Range per Row | Easy |
| 120 | ○ | Strip Prefixes and Map Categories to Codes | Medium |