| Title | Topics | Action | |||
|---|---|---|---|---|---|
| 74 | Print First Array ElementAn array nums has been created for you with the values {10, 20, 30, 40, 50}. Pri... | easy | ○ Not Started | Arrays | Solve |
| 75 | Print Last Array ElementAn array nums has been created with the values {10, 20, 30, 40, 50}. Print the L... | easy | ○ Not Started | Arrays | Solve |
| 76 | Array Size with sizeofAn array nums has been created with the values {10, 20, 30, 40, 50}. Print how m... | easy | ○ Not Started | Arrays | Solve |
| 77 | Print All Array ElementsAn array nums has been created with the values {10, 20, 30, 40, 50}. Use a for l... | easy | ○ Not Started | Arrays | Solve |
| 78 | Sum All Array ElementsAn array nums has been created with the values {10, 20, 30, 40, 50}. Use a for l... | easy | ○ Not Started | Arrays | Solve |
| 79 | Find the Largest ElementAn array nums has been created with the values {10, 40, 20, 50, 30}. Find the la... | easy | ○ Not Started | Arrays | Solve |
| 80 | Find the Smallest ElementAn array nums has been created with the values {30, 10, 50, 20, 40}. Find the sm... | easy | ○ Not Started | Arrays | Solve |
| 81 | Count Even Numbers in ArrayAn array nums has been created with the values {10, 15, 20, 25, 30}. Count how m... | easy | ○ Not Started | Arrays | Solve |
| 82 | Average of ArrayAn array nums has been created with the values {10, 20, 30, 40, 50}. Compute the... | easy | ○ Not Started | Arrays | Solve |
| 83 | Print Array in ReverseAn array nums has been created with the values {10, 20, 30, 40, 50}. Print the e... | easy | ○ Not Started | Arrays | Solve |
| 84 | Change an Array ElementAn array nums has been created with the values {10, 20, 30, 40, 50}. Change the ... | easy | ○ Not Started | Arrays | Solve |
| 85 | Print Elements Greater Than 25An array nums has been created with the values {10, 20, 30, 40, 50}. Print only ... | easy | ○ Not Started | Arrays | Solve |
| 86 | Double Each ElementAn array nums has been created with the values {10, 20, 30, 40, 50}. Print each ... | easy | ○ Not Started | Arrays | Solve |
| 87 | Count Occurrences in ArrayAn array nums has been created with the values {10, 20, 10, 30, 10} and target =... | easy | ○ Not Started | Arrays | Solve |
| 88 | Sum of Even ElementsAn array nums has been created with the values {10, 15, 20, 25, 30}. Add up only... | easy | ○ Not Started | Arrays | Solve |
| 216 | Print Each Array ElementArrays let you store many values in one variable and reach each one by its posit... | easy | ○ Not Started | Arrays | Solve |
| 217 | Sum of Array ValuesA very common task is adding up every number stored in an array. Start with a to... | easy | ○ Not Started | Arrays | Solve |
| 218 | Largest Element in an ArrayTo find the biggest value in an array, assume the first element is the largest s... | easy | ○ Not Started | Arrays | Solve |
| 219 | Smallest Element in an ArrayFinding the smallest value works just like finding the largest, but you flip the... | easy | ○ Not Started | Arrays | Solve |
| 220 | Print an Array in ReverseYou can walk an array backwards by starting your loop counter at the last index ... | easy | ○ Not Started | Arrays | Solve |
| 221 | Count the Even NumbersCounting is a classic array pattern: you keep a counter starting at 0 and increa... | easy | ○ Not Started | Arrays | Solve |
| 222 | Count Occurrences of a ValueSometimes you need to know how many times a specific value appears in an array. ... | easy | ○ Not Started | Arrays | Solve |
| 371 | Product of All Array ElementsThe array `{1, 2, 3, 4, 5}` is given. Multiply all of its elements together and ... | easy | ○ Not Started | Arrays | Solve |
| 372 | Count Odd Numbers in ArrayThe array `{3, 8, 5, 12, 7, 4, 9}` is given. Count how many elements are odd and... | easy | ○ Not Started | Arrays | Solve |
| 373 | Sum of First and Last ElementThe array `{10, 20, 30, 40, 50}` is given. Print the sum of its first and last e... | easy | ○ Not Started | Arrays | Solve |
| 374 | Print Array Elements with IndexThe array `{5, 10, 15}` is given. Print every element next to its index, one per... | easy | ○ Not Started | Arrays | Solve |
| 375 | Find Index of Maximum ElementThe array `{4, 9, 2, 15, 7}` is given. Print the index (position) of the largest... | easy | ○ Not Started | Arrays | Solve |
| 376 | Swap First and Last ElementsThe array `{1, 2, 3, 4, 5}` is given. Swap its first and last elements, then pri... | easy | ○ Not Started | Arrays | Solve |
| 377 | Sum of SquaresThe array `{1, 2, 3, 4}` is given. Add up the square of each element and print t... | easy | ○ Not Started | Arrays | Solve |
| 378 | Count Negative NumbersThe array `{-3, 5, -1, 8, -7, 2, 0}` is given. Count how many elements are stric... | easy | ○ Not Started | Arrays | Solve |
| 379 | Print Elements at Even IndicesThe array `{10, 20, 30, 40, 50, 60}` is given. Print only the elements at even i... | easy | ○ Not Started | Arrays | Solve |
| 380 | Scale Array by ThreeThe array `{1, 2, 3, 4}` is given. Multiply every element by `3`, then print the... | easy | ○ Not Started | Arrays | Solve |
| 381 | Count Elements Divisible by ThreeThe array `{3, 7, 9, 10, 12, 5, 6}` is given. Count how many elements are evenly... | easy | ○ Not Started | Arrays | Solve |
| 382 | Sum of Absolute ValuesThe array `{-4, 3, -2, 5, -1}` is given. Add up the absolute value of each eleme... | easy | ○ Not Started | Arrays | Solve |
| 383 | Range of ArrayThe array `{7, 2, 9, 4, 11, 5}` is given. The range is the largest element minus... | easy | ○ Not Started | Arrays | Solve |
| 89 | Read N Values and SumRead an integer N, then read N more integers into an array. Print the sum of all... | medium | ○ Not Started | Arrays | Solve |
| 90 | Read N Values and Find MaxRead an integer N, then read N integers into an array. Print the largest value i... | medium | ○ Not Started | Arrays | Solve |
| 91 | Reverse Array In PlaceAn array nums has been created with the values {10, 20, 30, 40, 50}. Reverse it ... | medium | ○ Not Started | Arrays | Solve |
| 92 | Linear SearchRead an integer N, then N integers into an array, then one more integer target. ... | medium | ○ Not Started | Arrays | Solve |
| 93 | Count Above AverageRead an integer N, then N integers. Compute the average (use integer division), ... | medium | ○ Not Started | Arrays | Solve |
| 94 | Second Largest ElementAn array nums has been created with the values {10, 40, 20, 50, 30}. Find and pr... | medium | ○ Not Started | Arrays | Solve |
| 95 | Copy Array to AnotherAn array nums has been created with the values {10, 20, 30, 40, 50} and an empty... | medium | ○ Not Started | Arrays | Solve |
| 223 | Average of Test ScoresThis task combines two ideas: summing an array and then dividing to get an avera... | medium | ○ Not Started | Arrays | Solve |
| 224 | Largest Value and Its IndexFinding the maximum is useful, but often you also want to know WHERE it is. This... | medium | ○ Not Started | Arrays | Solve |
| 225 | Reverse an Array In PlaceInstead of just printing an array backwards, here you actually rearrange the arr... | medium | ○ Not Started | Arrays | Solve |
| 384 | Check if Array is Sorted AscendingAn array is sorted in non-decreasing order when every element is greater than or... | medium | ○ Not Started | Arrays | Solve |
| 385 | Cumulative SumThe array `{1, 2, 3, 4}` is given. Print the running (cumulative) sum: each outp... | medium | ○ Not Started | Arrays | Solve |
| 386 | Dot Product of Two ArraysTwo arrays of equal length are given: `a = {1, 2, 3}` and `b = {4, 5, 6}`. The d... | medium | ○ Not Started | Arrays | Solve |
| 387 | Merge Two ArraysTwo arrays are given: `a = {1, 2, 3}` and `b = {4, 5, 6}`. Build one combined ar... | medium | ○ Not Started | Arrays | Solve |
| 388 | Rotate Array Left by OneThe array `{1, 2, 3, 4, 5}` is given. Rotate it left by one position: every elem... | medium | ○ Not Started | Arrays | Solve |
| 389 | Count Elements in a RangeThe array `{5, 12, 8, 20, 3, 15, 10}` is given, along with bounds `low = 8` and ... | medium | ○ Not Started | Arrays | Solve |
| 390 | Running MaximumThe array `{3, 1, 4, 1, 5, 9, 2}` is given. Print, for each position, the maximu... | medium | ○ Not Started | Arrays | Solve |
| 391 | Replace Negatives with ZeroThe array `{3, -1, 4, -5, 2}` is given. Replace every negative element with `0`,... | medium | ○ Not Started | Arrays | Solve |
| 96 | Sort an Array AscendingRead an integer N, then N integers into an array. Sort the array in ascending or... | hard | ○ Not Started | Arrays | Solve |
| 97 | Remove DuplicatesAn array nums has been created with the values {10, 20, 10, 30, 20}. Print only ... | hard | ○ Not Started | Arrays | Solve |
| 98 | Pairs That Sum to TargetAn array nums has been created with the values {10, 20, 30, 40, 50} and target =... | hard | ○ Not Started | Arrays | Solve |
| 392 | Minimum and Maximum TogetherThe array `{4, 9, 2, 15, 7, 1, 8}` is given. In a single pass, find both the sma... | hard | ○ Not Started | Arrays | Solve |
| 393 | Move Zeros to EndThe array `{0, 1, 0, 3, 12}` is given. Move all the zeros to the end while keepi... | hard | ○ Not Started | Arrays | Solve |
| 394 | Most Frequent ElementThe array `{1, 3, 3, 2, 3, 1, 2}` is given. Find the element that appears the mo... | hard | ○ Not Started | Arrays | Solve |
| 395 | Longest Increasing RunThe array `{1, 2, 1, 2, 3, 4, 1}` is given. Find the length of the longest run o... | hard | ○ Not Started | Arrays | Solve |