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Exploring Insertion Sort Algorithm Step by Step: Visual Guide

Learn and understand the Insertion Sort algorithm in a visual, step-by-step manner, with examples and explanations for each iteration. Ideal for beginners and coding enthusiasts.

tasha-howard
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Exploring Insertion Sort Algorithm Step by Step: Visual Guide

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  1. Array index 0 1 2 3 4 5 6 7 8 9 Insertion Sort • Iteration i. Repeatedly swap element i with the one to its left if smaller. • Property. After ith iteration, a[0] through a[i] contain first i+1 elements in ascending order. Value 2.78 7.42 0.56 1.12 1.17 0.32 6.21 4.42 3.14 7.71 Iteration 0: step 0.

  2. Array index 0 1 2 3 4 5 6 7 8 9 Insertion Sort • Iteration i. Repeatedly swap element i with the one to its left if smaller. • Property. After ith iteration, a[0] through a[i] contain first i+1 elements in ascending order. Value 2.78 7.42 0.56 1.12 1.17 0.32 6.21 4.42 3.14 7.71 Iteration 1: step 0.

  3. Array index 0 1 2 3 4 5 6 7 8 9 0.56 7.42 Insertion Sort • Iteration i. Repeatedly swap element i with the one to its left if smaller. • Property. After ith iteration, a[0] through a[i] contain first i+1 elements in ascending order. Value 2.78 7.42 0.56 1.12 1.17 0.32 6.21 4.42 3.14 7.71 Iteration 2: step 0.

  4. Array index 0 1 2 3 4 5 6 7 8 9 0.56 2.78 Insertion Sort • Iteration i. Repeatedly swap element i with the one to its left if smaller. • Property. After ith iteration, a[0] through a[i] contain first i+1 elements in ascending order. Value 2.78 0.56 7.42 1.12 1.17 0.32 6.21 4.42 3.14 7.71 Iteration 2: step 1.

  5. Array index 0 1 2 3 4 5 6 7 8 9 Insertion Sort • Iteration i. Repeatedly swap element i with the one to its left if smaller. • Property. After ith iteration, a[0] through a[i] contain first i+1 elements in ascending order. Value 0.56 2.78 7.42 1.12 1.17 0.32 6.21 4.42 3.14 7.71 Iteration 2: step 2.

  6. Array index 0 1 2 3 4 5 6 7 8 9 1.12 7.42 Insertion Sort • Iteration i. Repeatedly swap element i with the one to its left if smaller. • Property. After ith iteration, a[0] through a[i] contain first i+1 elements in ascending order. Value 0.56 2.78 7.42 1.12 1.17 0.32 6.21 4.42 3.14 7.71 Iteration 3: step 0.

  7. Array index 0 1 2 3 4 5 6 7 8 9 1.12 2.78 Insertion Sort • Iteration i. Repeatedly swap element i with the one to its left if smaller. • Property. After ith iteration, a[0] through a[i] contain first i+1 elements in ascending order. Value 0.56 2.78 1.12 7.42 1.17 0.32 6.21 4.42 3.14 7.71 Iteration 3: step 1.

  8. Array index 0 1 2 3 4 5 6 7 8 9 Insertion Sort • Iteration i. Repeatedly swap element i with the one to its left if smaller. • Property. After ith iteration, a[0] through a[i] contain first i+1 elements in ascending order. Value 0.56 1.12 2.78 7.42 1.17 0.32 6.21 4.42 3.14 7.71 Iteration 3: step 2.

  9. Array index 0 1 2 3 4 5 6 7 8 9 1.17 7.42 Insertion Sort • Iteration i. Repeatedly swap element i with the one to its left if smaller. • Property. After ith iteration, a[0] through a[i] contain first i+1 elements in ascending order. Value 0.56 1.12 2.78 7.42 1.17 0.32 6.21 4.42 3.14 7.71 Iteration 4: step 0.

  10. Array index 0 1 2 3 4 5 6 7 8 9 1.17 2.78 Insertion Sort • Iteration i. Repeatedly swap element i with the one to its left if smaller. • Property. After ith iteration, a[0] through a[i] contain first i+1 elements in ascending order. Value 0.56 1.12 2.78 1.17 7.42 0.32 6.21 4.42 3.14 7.71 Iteration 4: step 1.

  11. Array index 0 1 2 3 4 5 6 7 8 9 Insertion Sort • Iteration i. Repeatedly swap element i with the one to its left if smaller. • Property. After ith iteration, a[0] through a[i] contain first i+1 elements in ascending order. Value 0.56 1.12 1.17 2.78 7.42 0.32 6.21 4.42 3.14 7.71 Iteration 4: step 2.

  12. Array index 0 1 2 3 4 5 6 7 8 9 0.32 7.42 Insertion Sort • Iteration i. Repeatedly swap element i with the one to its left if smaller. • Property. After ith iteration, a[0] through a[i] contain first i+1 elements in ascending order. Value 0.56 1.12 1.17 2.78 7.42 0.32 6.21 4.42 3.14 7.71 Iteration 5: step 0.

  13. Array index 0 1 2 3 4 5 6 7 8 9 0.32 2.78 Insertion Sort • Iteration i. Repeatedly swap element i with the one to its left if smaller. • Property. After ith iteration, a[0] through a[i] contain first i+1 elements in ascending order. Value 0.56 1.12 1.17 2.78 0.32 7.42 6.21 4.42 3.14 7.71 Iteration 5: step 1.

  14. Array index 0 1 2 3 4 5 6 7 8 9 0.32 1.17 Insertion Sort • Iteration i. Repeatedly swap element i with the one to its left if smaller. • Property. After ith iteration, a[0] through a[i] contain first i+1 elements in ascending order. Value 0.56 1.12 1.17 0.32 2.78 7.42 6.21 4.42 3.14 7.71 Iteration 5: step 2.

  15. Array index 0 1 2 3 4 5 6 7 8 9 0.32 1.12 Insertion Sort • Iteration i. Repeatedly swap element i with the one to its left if smaller. • Property. After ith iteration, a[0] through a[i] contain first i+1 elements in ascending order. Value 0.56 1.12 0.32 1.17 2.78 7.42 6.21 4.42 3.14 7.71 Iteration 5: step 3.

  16. Array index 0 1 2 3 4 5 6 7 8 9 0.32 0.56 Insertion Sort • Iteration i. Repeatedly swap element i with the one to its left if smaller. • Property. After ith iteration, a[0] through a[i] contain first i+1 elements in ascending order. Value 0.56 0.32 1.12 1.17 2.78 7.42 6.21 4.42 3.14 7.71 Iteration 5: step 4.

  17. Array index 0 1 2 3 4 5 6 7 8 9 Insertion Sort • Iteration i. Repeatedly swap element i with the one to its left if smaller. • Property. After ith iteration, a[0] through a[i] contain first i+1 elements in ascending order. Value 0.32 0.56 1.12 1.17 2.78 7.42 6.21 4.42 3.14 7.71 Iteration 5: step 5.

  18. Array index 0 1 2 3 4 5 6 7 8 9 6.21 7.42 Insertion Sort • Iteration i. Repeatedly swap element i with the one to its left if smaller. • Property. After ith iteration, a[0] through a[i] contain first i+1 elements in ascending order. Value 0.32 0.56 1.12 1.17 2.78 7.42 6.21 4.42 3.14 7.71 Iteration 6: step 0.

  19. Array index 0 1 2 3 4 5 6 7 8 9 Insertion Sort • Iteration i. Repeatedly swap element i with the one to its left if smaller. • Property. After ith iteration, a[0] through a[i] contain first i+1 elements in ascending order. Value 0.32 0.56 1.12 1.17 2.78 6.21 7.42 4.42 3.14 7.71 Iteration 6: step 1.

  20. Array index 0 1 2 3 4 5 6 7 8 9 4.42 7.42 Insertion Sort • Iteration i. Repeatedly swap element i with the one to its left if smaller. • Property. After ith iteration, a[0] through a[i] contain first i+1 elements in ascending order. Value 0.32 0.56 1.12 1.17 2.78 6.21 7.42 4.42 3.14 7.71 Iteration 7: step 0.

  21. Array index 0 1 2 3 4 5 6 7 8 9 4.42 6.21 Insertion Sort • Iteration i. Repeatedly swap element i with the one to its left if smaller. • Property. After ith iteration, a[0] through a[i] contain first i+1 elements in ascending order. Value 0.32 0.56 1.12 1.17 2.78 6.21 4.42 7.42 3.14 7.71 Iteration 7: step 1.

  22. Array index 0 1 2 3 4 5 6 7 8 9 Insertion Sort • Iteration i. Repeatedly swap element i with the one to its left if smaller. • Property. After ith iteration, a[0] through a[i] contain first i+1 elements in ascending order. Value 0.32 0.56 1.12 1.17 2.78 4.42 6.21 7.42 3.14 7.71 Iteration 7: step 2.

  23. Array index 0 1 2 3 4 5 6 7 8 9 3.14 7.42 Insertion Sort • Iteration i. Repeatedly swap element i with the one to its left if smaller. • Property. After ith iteration, a[0] through a[i] contain first i+1 elements in ascending order. Value 0.32 0.56 1.12 1.17 2.78 4.42 6.21 7.42 3.14 7.71 Iteration 8: step 0.

  24. Array index 0 1 2 3 4 5 6 7 8 9 3.14 6.21 Insertion Sort • Iteration i. Repeatedly swap element i with the one to its left if smaller. • Property. After ith iteration, a[0] through a[i] contain first i+1 elements in ascending order. Value 0.32 0.56 1.12 1.17 2.78 4.42 6.21 3.14 7.42 7.71 Iteration 8: step 1.

  25. Array index 0 1 2 3 4 5 6 7 8 9 3.14 4.42 Insertion Sort • Iteration i. Repeatedly swap element i with the one to its left if smaller. • Property. After ith iteration, a[0] through a[i] contain first i+1 elements in ascending order. Value 0.32 0.56 1.12 1.17 2.78 4.42 3.14 6.21 7.42 7.71 Iteration 8: step 2.

  26. Array index 0 1 2 3 4 5 6 7 8 9 Insertion Sort • Iteration i. Repeatedly swap element i with the one to its left if smaller. • Property. After ith iteration, a[0] through a[i] contain first i+1 elements in ascending order. Value 0.32 0.56 1.12 1.17 2.78 3.14 4.42 6.21 7.42 7.71 Iteration 8: step 3.

  27. Array index 0 1 2 3 4 5 6 7 8 9 Insertion Sort • Iteration i. Repeatedly swap element i with the one to its left if smaller. • Property. After ith iteration, a[0] through a[i] contain first i+1 elements in ascending order. Value 0.32 0.56 1.12 1.17 2.78 3.14 4.42 6.21 7.42 7.71 Iteration 9: step 0.

  28. Array index 0 1 2 3 4 5 6 7 8 9 Insertion Sort • Iteration i. Repeatedly swap element i with the one to its left if smaller. • Property. After ith iteration, a[0] through a[i] contain first i+1 elements in ascending order. Value 0.32 0.56 1.12 1.17 2.78 3.14 4.42 6.21 7.42 7.71 Iteration 10: DONE.

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