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| 1 | +<!DOCTYPE html> |
| 2 | +<html lang="zh"> |
| 3 | +<head> |
| 4 | + <meta charset="UTF-8"> |
| 5 | + <title>Radix Sort 可视化 - 力扣 T164 最大间距</title> |
| 6 | + <style> |
| 7 | + body { |
| 8 | + font-family: 'Segoe UI', sans-serif; |
| 9 | + padding: 20px; |
| 10 | + } |
| 11 | + .input-group { |
| 12 | + margin-bottom: 12px; |
| 13 | + } |
| 14 | + .array-box, .bucket { |
| 15 | + display: flex; |
| 16 | + margin: 10px 0; |
| 17 | + justify-content: center; |
| 18 | + flex-wrap: wrap; |
| 19 | + } |
| 20 | + .item { |
| 21 | + width: 40px; |
| 22 | + height: 40px; |
| 23 | + margin: 4px; |
| 24 | + background-color: #4caf50; |
| 25 | + color: white; |
| 26 | + display: flex; |
| 27 | + justify-content: center; |
| 28 | + align-items: center; |
| 29 | + border-radius: 6px; |
| 30 | + font-weight: bold; |
| 31 | + } |
| 32 | + .bucket-container { |
| 33 | + display: flex; |
| 34 | + justify-content: space-between; |
| 35 | + } |
| 36 | + .bucket-column { |
| 37 | + width: 60px; |
| 38 | + text-align: center; |
| 39 | + } |
| 40 | + .bucket-column .bucket { |
| 41 | + border: 1px solid #ccc; |
| 42 | + padding: 5px; |
| 43 | + min-height: 50px; |
| 44 | + background: #f9f9f9; |
| 45 | + border-radius: 4px; |
| 46 | + } |
| 47 | + #log { |
| 48 | + background-color: #000; |
| 49 | + color: #0f0; |
| 50 | + padding: 10px; |
| 51 | + height: 180px; |
| 52 | + overflow-y: auto; |
| 53 | + white-space: pre-line; |
| 54 | + font-family: monospace; |
| 55 | + } |
| 56 | + .controls { |
| 57 | + margin-top: 12px; |
| 58 | + } |
| 59 | + </style> |
| 60 | +</head> |
| 61 | +<body> |
| 62 | + <h2>🧮 基数排序可视化 - 力扣 T164 最大间距</h2> |
| 63 | + |
| 64 | + <div class="input-group"> |
| 65 | + <label>输入数组(逗号分隔):</label> |
| 66 | + <input id="inputArray" type="text" value="170,45,75,90,802,24,2,66" size="50"> |
| 67 | + </div> |
| 68 | + |
| 69 | + <div class="input-group"> |
| 70 | + <label>动画间隔(毫秒):</label> |
| 71 | + <input id="delay" type="number" value="1000" min="100"> |
| 72 | + </div> |
| 73 | + |
| 74 | + <button onclick="startVisualization()">▶️ 开始可视化</button> |
| 75 | + <a href="index.html" style="margin-left:20px;">返回首页</a> |
| 76 | + |
| 77 | + <h3>数组状态</h3> |
| 78 | + <div id="array" class="array-box"></div> |
| 79 | + |
| 80 | + <h3>每位的桶(0~9)</h3> |
| 81 | + <div class="bucket-container" id="buckets"> |
| 82 | + <!-- 10个桶 --> |
| 83 | + <!-- 每个桶是 .bucket-column 下的 .bucket --> |
| 84 | + </div> |
| 85 | + |
| 86 | + <h3>日志输出</h3> |
| 87 | + <div id="log"></div> |
| 88 | + |
| 89 | + <script> |
| 90 | + const sleep = ms => new Promise(resolve => setTimeout(resolve, ms)); |
| 91 | + |
| 92 | + function log(msg) { |
| 93 | + const logEl = document.getElementById("log"); |
| 94 | + logEl.textContent += msg + "\n"; |
| 95 | + logEl.scrollTop = logEl.scrollHeight; |
| 96 | + } |
| 97 | + |
| 98 | + function renderArray(arr) { |
| 99 | + const arrayEl = document.getElementById("array"); |
| 100 | + arrayEl.innerHTML = ""; |
| 101 | + arr.forEach(num => { |
| 102 | + const div = document.createElement("div"); |
| 103 | + div.className = "item"; |
| 104 | + div.innerText = num; |
| 105 | + arrayEl.appendChild(div); |
| 106 | + }); |
| 107 | + } |
| 108 | + |
| 109 | + function clearBuckets() { |
| 110 | + for (let i = 0; i < 10; i++) { |
| 111 | + document.getElementById(`bucket-${i}`).innerHTML = ""; |
| 112 | + } |
| 113 | + } |
| 114 | + |
| 115 | + function renderBuckets(bucketQueues) { |
| 116 | + clearBuckets(); |
| 117 | + for (let i = 0; i < 10; i++) { |
| 118 | + const bucket = bucketQueues[i]; |
| 119 | + const container = document.getElementById(`bucket-${i}`); |
| 120 | + bucket.forEach(num => { |
| 121 | + const div = document.createElement("div"); |
| 122 | + div.className = "item"; |
| 123 | + div.innerText = num; |
| 124 | + container.appendChild(div); |
| 125 | + }); |
| 126 | + } |
| 127 | + } |
| 128 | + |
| 129 | + async function startVisualization() { |
| 130 | + const input = document.getElementById("inputArray").value.trim(); |
| 131 | + const delay = parseInt(document.getElementById("delay").value) || 1000; |
| 132 | + const arr = input.split(",").map(s => parseInt(s.trim())).filter(n => !isNaN(n)); |
| 133 | + |
| 134 | + if (arr.length < 2) { |
| 135 | + alert("请输入至少两个数字"); |
| 136 | + return; |
| 137 | + } |
| 138 | + |
| 139 | + document.getElementById("log").textContent = ""; |
| 140 | + log("开始基数排序..."); |
| 141 | + |
| 142 | + renderArray(arr); |
| 143 | + const max = Math.max(...arr); |
| 144 | + let exp = 1; |
| 145 | + |
| 146 | + while (Math.floor(max / exp) > 0) { |
| 147 | + log(`\n📍 当前位数(exp): ${exp}`); |
| 148 | + const buckets = Array.from({ length: 10 }, () => []); |
| 149 | + |
| 150 | + // 入桶 |
| 151 | + for (let num of arr) { |
| 152 | + const digit = Math.floor(num / exp) % 10; |
| 153 | + buckets[digit].push(num); |
| 154 | + log(`将 ${num} 放入桶 ${digit}`); |
| 155 | + } |
| 156 | + |
| 157 | + renderBuckets(buckets); |
| 158 | + await sleep(delay); |
| 159 | + |
| 160 | + // 出桶 |
| 161 | + let idx = 0; |
| 162 | + for (let i = 0; i < 10; i++) { |
| 163 | + while (buckets[i].length > 0) { |
| 164 | + const num = buckets[i].shift(); |
| 165 | + arr[idx++] = num; |
| 166 | + log(`从桶 ${i} 取出 ${num}`); |
| 167 | + renderArray(arr); |
| 168 | + renderBuckets(buckets); |
| 169 | + await sleep(100); |
| 170 | + } |
| 171 | + } |
| 172 | + |
| 173 | + exp *= 10; |
| 174 | + } |
| 175 | + |
| 176 | + log(`\n✅ 排序完成: ${arr.join(', ')}`); |
| 177 | + // 计算最大间距 |
| 178 | + let maxGap = 0; |
| 179 | + for (let i = 1; i < arr.length; i++) { |
| 180 | + const gap = arr[i] - arr[i - 1]; |
| 181 | + log(`间距: ${arr[i]} - ${arr[i - 1]} = ${gap}`); |
| 182 | + maxGap = Math.max(maxGap, gap); |
| 183 | + } |
| 184 | + |
| 185 | + log(`\n🔥 最大间距为: ${maxGap}`); |
| 186 | + } |
| 187 | + |
| 188 | + // 初始化桶 UI |
| 189 | + window.onload = () => { |
| 190 | + const container = document.getElementById("buckets"); |
| 191 | + for (let i = 0; i < 10; i++) { |
| 192 | + const col = document.createElement("div"); |
| 193 | + col.className = "bucket-column"; |
| 194 | + col.innerHTML = `<strong>${i}</strong><div class="bucket" id="bucket-${i}"></div>`; |
| 195 | + container.appendChild(col); |
| 196 | + } |
| 197 | + } |
| 198 | + </script> |
| 199 | +</body> |
| 200 | +</html> |
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