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Write code, watch it execute. See arrays fill, loops iterate, and variables change — step by step, in real time. Built for learners who want to understand, not memorize.

main.c
1int arr[5] = {3, 7, 1, 9, 4};
2
Memory
3
7
1
9
4
[0][1][2][3][4]

Array declared

Step 1 of 6
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Write code. Hit play. Watch memory change in real-time. No complex debugger needed — just visual, step-by-step execution.

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int stack[5];

int top = -1;

push(42);

push(17);

Stack

42

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Get a taste of what StackVision can do

stackvision.app/lab/bubble-sort

1void bubbleSort(int arr[], int n) {

2 for(int i=0; i<n-1; i++) {

3 for(int j=0; j<n-i-1; j++) {

4 if(arr[j] > arr[j+1]) {

5 swap(arr[j], arr[j+1]);

6 }

7 }

8 }

9}

Bubble Sort — Pass 1
12
29
38
64
87
i = 0j = 1n = 5

Comparing arr[1]=29 with arr[2]=38 — no swap needed

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