leetcode-visual/array-difference-array-visual.html at main · houbb/leetcode-visual · GitHub

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <title>差分数组可视化</title>
  <style>
    body {
      background: linear-gradient(135deg, #1f1f1f, #2c3e50);
      font-family: 'Segoe UI', sans-serif;
      color: #fff;
      text-align: center;
      padding: 20px;
    }

    .array-container {
      display: flex;
      justify-content: center;
      margin: 20px 0;
      flex-wrap: wrap;
    }

    .box {
      width: 50px;
      height: 50px;
      margin: 5px;
      line-height: 50px;
      font-size: 18px;
      font-weight: bold;
      background: rgba(255, 255, 255, 0.1);
      border-radius: 10px;
      backdrop-filter: blur(5px);
      transition: all 0.3s ease;
      position: relative;
    }

    .box:hover {
      transform: scale(1.1);
      box-shadow: 0 0 10px #00f7ff;
    }

    .highlight {
      background: #00f7ff;
      color: #000;
    }

    .completed {
      background: #2ecc71;
      color: #000;
    }

    .index {
      font-size: 10px;
      position: absolute;
      top: -18px;
      left: 50%;
      transform: translateX(-50%);
      color: #ccc;
    }

    .controls {
      margin: 20px 0;
    }

    input[type="text"], input[type="number"] {
      padding: 5px;
      font-size: 16px;
      border-radius: 6px;
      border: none;
      width: 300px;
    }

    button {
      padding: 10px 20px;
      font-size: 16px;
      margin-left: 10px;
      background: #00f7ff;
      color: #000;
      border: none;
      border-radius: 8px;
      cursor: pointer;
    }

    #logs {
      margin-top: 20px;
      text-align: left;
      max-height: 300px;
      overflow-y: auto;
      background: #111;
      padding: 10px;
      border-radius: 10px;
      font-family: monospace;
    }

    a {
      display: inline-block;
      margin-top: 20px;
      color: #00f7ff;
      text-decoration: none;
      font-size: 16px;
    }

    a:hover {
      text-decoration: underline;
    }
  </style>
</head>
<body>

  <h1>差分数组可视化</h1>

  <div class="controls">
    原始数组（以逗号分隔）：
    <input type="text" id="inputArray" value="3,8,12,14,20,25,30,35,38,40">
    动画间隔（秒）：
    <input type="number" id="interval" value="1" min="0.1" max="60" step="0.1">
    <button onclick="startVisualization()">开始可视化</button>
  </div>

  <div>
    <h3>原始数组</h3>
    <div id="original" class="array-container"></div>
  </div>

  <div>
    <h3>差分数组</h3>
    <div id="diff" class="array-container"></div>
  </div>

  <div id="logs"></div>

  <a href="index.html">返回首页</a>

  <script>
    function sleep(ms) {
      return new Promise(resolve => setTimeout(resolve, ms));
    }

    function renderArray(container, arr, prefix) {
      container.innerHTML = '';
      for (let i = 0; i < arr.length; i++) {
        const div = document.createElement('div');
        div.className = 'box';
        div.id = `${prefix}-${i}`;
        div.innerHTML = arr[i] !== null ? arr[i] : '';
        const idx = document.createElement('div');
        idx.className = 'index';
        idx.innerText = i;
        div.appendChild(idx);
        container.appendChild(div);
      }
    }

    async function startVisualization() {
      const input = document.getElementById('inputArray').value;
      const intervalSec = Math.min(60, Math.max(0.1, parseFloat(document.getElementById('interval').value || 1)));
      const logs = document.getElementById('logs');
      logs.innerHTML = '';

      let arr = input.split(',').map(x => parseInt(x.trim())).filter(x => !isNaN(x));
      if (arr.length < 2) {
        logs.innerHTML = '请输入至少两个数字。';
        return;
      }

      let diff = Array(arr.length).fill(null);
      diff[0] = arr[0];

      const originalContainer = document.getElementById('original');
      const diffContainer = document.getElementById('diff');
      renderArray(originalContainer, arr, 'original');
      renderArray(diffContainer, diff, 'diff');

      // 第0位特殊处理
      document.getElementById('diff-0').classList.add('completed');
      logs.innerHTML += `diff[0] = original[0] = ${arr[0]}<br>`;

      for (let i = 1; i < arr.length; i++) {
        document.getElementById(`original-${i}`).classList.add('highlight');
        document.getElementById(`original-${i - 1}`).classList.add('highlight');

        await sleep(intervalSec * 1000);

        const d = arr[i] - arr[i - 1];
        diff[i] = d;
        document.getElementById(`diff-${i}`).innerText = d;
        document.getElementById(`diff-${i}`).classList.add('completed');

        logs.innerHTML += `diff[${i}] = original[${i}] - original[${i - 1}] = ${arr[i]} - ${arr[i - 1]} = ${d}<br>`;
        logs.scrollTop = logs.scrollHeight;

        document.getElementById(`original-${i}`).classList.remove('highlight');
        document.getElementById(`original-${i - 1}`).classList.remove('highlight');
      }
    }
  </script>
</body>
</html>