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204 lines (170 loc) · 4.95 KB
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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8" />
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<title>Prefix Sum Visualization</title>
<style>
body {
font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
background: linear-gradient(135deg, #1f1c2c, #928dab);
color: white;
margin: 0;
padding: 20px;
overflow-x: hidden;
}
h1 {
text-align: center;
margin-bottom: 20px;
}
.input-area,
.array-container,
.log {
display: flex;
justify-content: center;
flex-wrap: wrap;
margin-bottom: 20px;
}
.box-container {
display: flex;
gap: 10px;
margin-top: 10px;
}
.box {
width: 50px;
height: 50px;
display: flex;
justify-content: center;
align-items: center;
font-weight: bold;
font-size: 20px;
border-radius: 12px;
position: relative;
background: rgba(255, 255, 255, 0.1);
backdrop-filter: blur(4px);
transition: all 0.3s ease;
cursor: pointer;
}
.box:hover {
transform: scale(1.1);
box-shadow: 0 0 15px #fff5;
}
.highlight {
background-color: #00bcd4 !important;
animation: flash 0.8s ease;
}
.result-box {
background-color: #4caf50;
}
.index {
position: absolute;
top: -22px;
font-size: 14px;
color: #ddd;
}
@keyframes flash {
0% { box-shadow: 0 0 5px #00bcd4; }
50% { box-shadow: 0 0 20px #00bcd4; }
100% { box-shadow: 0 0 5px #00bcd4; }
}
.log {
flex-direction: column;
align-items: center;
background: #111;
padding: 15px;
border-radius: 10px;
max-height: 300px;
overflow-y: auto;
}
.log p {
margin: 5px 0;
font-family: monospace;
color: #0f0;
}
.controls {
text-align: center;
margin-bottom: 20px;
}
.controls input {
width: 60px;
}
.home-link {
position: fixed;
bottom: 10px;
left: 10px;
color: white;
text-decoration: none;
}
</style>
</head>
<body>
<h1>Prefix Sum Visualization</h1>
<div class="controls">
<label>间隔（秒）: <input id="interval" type="number" value="1" min="0.1" max="60" step="0.1" /></label>
<button onclick="startVisualization()">开始可视化</button>
</div>
<div class="input-area">
<input id="inputArray" type="text" value="1,2,3,4,5,6,7,8,9,10" style="width: 400px" />
</div>
<div class="array-container">
<div>
<h3 style="text-align:center">原数组</h3>
<div class="box-container" id="original"></div>
</div>
</div>
<div class="array-container">
<div>
<h3 style="text-align:center">前缀和数组</h3>
<div class="box-container" id="prefix"></div>
</div>
</div>
<div class="log" id="log"></div>
<a class="home-link" href="index.html">← 返回首页</a>
<script>
function sleep(ms) {
return new Promise(resolve => setTimeout(resolve, ms));
}
async function startVisualization() {
const interval = Math.min(Math.max(parseFloat(document.getElementById("interval").value), 0.1), 60) * 1000;
const input = document.getElementById("inputArray").value;
const nums = input.split(',').map(v => parseInt(v.trim())).filter(v => !isNaN(v));
const prefix = [];
const originalContainer = document.getElementById("original");
const prefixContainer = document.getElementById("prefix");
const log = document.getElementById("log");
originalContainer.innerHTML = "";
prefixContainer.innerHTML = "";
log.innerHTML = "";
nums.forEach((num, i) => {
const box = document.createElement("div");
box.className = "box";
box.innerHTML = `<div class='index'>${i}</div>${num}`;
box.style.backgroundColor = '#3949ab';
originalContainer.appendChild(box);
});
nums.forEach((_, i) => {
const box = document.createElement("div");
box.className = "box";
box.innerHTML = `<div class='index'>${i}</div>?`;
prefixContainer.appendChild(box);
});
for (let i = 0; i < nums.length; i++) {
const origBoxes = originalContainer.children;
const preBoxes = prefixContainer.children;
// 高亮当前
origBoxes[i].classList.add('highlight');
if (i > 0) origBoxes[i - 1].classList.remove('highlight');
prefix[i] = (prefix[i - 1] || 0) + nums[i];
preBoxes[i].classList.add('highlight');
preBoxes[i].textContent = prefix[i];
log.innerHTML += `<p>prefix[${i}] = ${(prefix[i - 1] || 0)} + ${nums[i]} = ${prefix[i]}</p>`;
log.scrollTop = log.scrollHeight;
await sleep(interval);
origBoxes[i].classList.remove('highlight');
preBoxes[i].classList.remove('highlight');
preBoxes[i].classList.add('result-box');
}
}
</script>
</body>
</html>