198 lines
8.4 KiB
HTML
198 lines
8.4 KiB
HTML
<!DOCTYPE html>
|
||
<html lang="zh-Hans">
|
||
<head>
|
||
<meta charset="UTF-8">
|
||
<meta name="viewport" content="width=device-width, initial-scale=1.0">
|
||
<title>028. 两数相加 – 图解</title>
|
||
<link rel="stylesheet" href="../shared/style.css">
|
||
<style>
|
||
/* page-specific overrides */
|
||
.vis-area { min-height: 120px; padding: 16px 0; }
|
||
.code-section { margin-top: 16px; }
|
||
</style>
|
||
</head>
|
||
<body>
|
||
<div class="container">
|
||
<h1>🟡 028. 两数相加 <span class="badge medium">中等</span></h1>
|
||
<p class="subtitle">分类：链表 ｜ LeetCode Hot 100</p>
|
||
|
||
<!-- 控制面板 -->
|
||
<div class="controls" id="controls">
|
||
<label for="inputArea">输入：</label>
|
||
<input type="text" id="inputArea" placeholder="默认示例，可自定义">
|
||
<button id="applyBtn" class="primary">生成图解</button>
|
||
<select id="exampleSelect"></select>
|
||
<span style="flex:1"></span>
|
||
<button id="prevBtn">◀ 上一步</button>
|
||
<button id="nextBtn">下一步 ▶</button>
|
||
<button id="jumpBtn">⏭ 跳到结果</button>
|
||
<button id="autoBtn">自动播放</button>
|
||
<button id="resetBtn">重置</button>
|
||
</div>
|
||
|
||
<!-- 步骤流水线 -->
|
||
<div class="pipeline" id="pipeline"></div>
|
||
|
||
<!-- 提示条 -->
|
||
<div class="hint info" id="hintBox">
|
||
<span id="stepInfo"></span><br>
|
||
<span id="hintText"></span>
|
||
</div>
|
||
|
||
<!-- 可视化面板 -->
|
||
<div class="panels">
|
||
<div class="panel" id="mainPanel">
|
||
<h3>📊 可视化</h3>
|
||
<div class="vis-area" id="vizArea">点击「生成图解」开始</div>
|
||
</div>
|
||
<div class="panel-grid">
|
||
<div class="panel" id="detailPanel">
|
||
<h3>📝 当前步骤详情</h3>
|
||
<div id="detailContent">等待开始...</div>
|
||
</div>
|
||
<div class="panel" id="resultPanel">
|
||
<h3>✅ 结果</h3>
|
||
<div id="resultContent">等待完成...</div>
|
||
</div>
|
||
</div>
|
||
</div>
|
||
|
||
<!-- 代码 -->
|
||
<div class="panel code-section">
|
||
<h3>💻 参考代码（Python）</h3>
|
||
<div id="codeArea"></div>
|
||
</div>
|
||
|
||
<footer>Powered by QwenPaw · 图解算法 · LeetCode Hot 100</footer>
|
||
</div>
|
||
|
||
<script src="../shared/algo-viz.js"></script>
|
||
<script>
|
||
"use strict";
|
||
(function() {
|
||
// ========== Algorithm Logic ==========
|
||
|
||
function llViz(nodes, opts) {
|
||
opts = opts || {};
|
||
var highs = opts.highs || {};
|
||
var ptrs = opts.ptrs || {};
|
||
var cycle = opts.cycle != null ? opts.cycle : -1;
|
||
var label = opts.label || '';
|
||
var showNull = opts.showNull !== false;
|
||
var html = '';
|
||
if (label) html += '<div style="font-size:13px;font-weight:600;color:var(--text-secondary);margin-bottom:4px;">' + label + '</div>';
|
||
html += '<div style="display:flex;flex-wrap:wrap;align-items:center;gap:4px;padding:4px 0;">';
|
||
for (var i = 0; i < nodes.length; i++) {
|
||
var cls = highs[i] || '';
|
||
html += '<div style="position:relative;display:inline-flex;flex-direction:column;align-items:center;">';
|
||
html += '<div class="ll-node ' + cls + '">';
|
||
html += '<span class="val">' + nodes[i] + '</span>';
|
||
if (i === cycle) {
|
||
html += '<span class="arrow" style="color:var(--red);font-weight:bold;">↩</span>';
|
||
} else if (i < nodes.length - 1) {
|
||
html += '<span class="arrow">→</span>';
|
||
} else if (showNull && i === nodes.length - 1) {
|
||
html += '<span class="arrow" style="color:var(--text-muted);">∅</span>';
|
||
}
|
||
html += '</div>';
|
||
var plabels = [];
|
||
var pkeys = Object.keys(ptrs);
|
||
for (var pi = 0; pi < pkeys.length; pi++) {
|
||
if (ptrs[pkeys[pi]] === i) plabels.push(pkeys[pi]);
|
||
}
|
||
if (plabels.length) {
|
||
html += '<div style="font-size:10px;font-weight:700;color:var(--blue);margin-top:2px;white-space:nowrap;">' + plabels.join(',') + '</div>';
|
||
}
|
||
html += '</div>';
|
||
}
|
||
html += '</div>';
|
||
return html;
|
||
}
|
||
|
||
function setPipeline(stages, current) {
|
||
$('pipeline').innerHTML = stages.map(function(st) {
|
||
var parts = st.split('\u2192');
|
||
return '<span class="pipe-step ' + (current===parts[0]?'active':'') + '">' + parts[1] + '</span>';
|
||
}).join('<i>\u2192</i>');
|
||
}
|
||
|
||
var examples = [
|
||
{l1:[2,4,3], l2:[5,6,4], label:'示例1: 342+465=807'},
|
||
{l1:[0], l2:[0], label:'示例2: 0+0=0'},
|
||
{l1:[9,9,9,9,9,9,9], l2:[9,9,9,9], label:'示例3: 大数相加'},
|
||
];
|
||
var steps, stepCtrl;
|
||
|
||
function buildSteps(ex) {
|
||
steps = [];
|
||
var l1 = ex.l1.slice(), l2 = ex.l2.slice();
|
||
steps.push({stage:'init', msg:'逐位相加 + 进位，链表已按逆序存储各位数字', i1:0, i2:0, carry:0, result:[], phase:'add'});
|
||
var i1 = 0, i2 = 0, carry = 0, result = [];
|
||
while (i1 < l1.length || i2 < l2.length || carry) {
|
||
var v1 = i1 < l1.length ? l1[i1] : 0;
|
||
var v2 = i2 < l2.length ? l2[i2] : 0;
|
||
var sum = v1 + v2 + carry;
|
||
var digit = sum % 10;
|
||
var newCarry = Math.floor(sum / 10);
|
||
steps.push({stage:'calc', msg: v1+' + '+v2+' + '+carry+'(carry) = '+sum+' → 写 '+digit+'，进位 '+newCarry, i1:i1, i2:i2, carry:carry, sum:sum, digit:digit, newCarry:newCarry, result:result.slice(), phase:'add'});
|
||
result.push(digit);
|
||
carry = newCarry;
|
||
i1++; i2++;
|
||
}
|
||
steps.push({stage:'done', msg:'结果：[' + result.join(',') + ']', result:result.slice(), phase:'done'});
|
||
}
|
||
|
||
function render(step) {
|
||
var s = steps[step];
|
||
var exIdx = parseInt($('exampleSelect').value) || 0;
|
||
var ex = examples[exIdx];
|
||
var hl1 = {}, hl2 = {}, hlR = {};
|
||
if (s.i1 < ex.l1.length) hl1[s.i1] = 'current';
|
||
if (s.i2 < ex.l2.length) hl2[s.i2] = 'current';
|
||
if (s.digit !== undefined && s.result) {
|
||
for (var ri = 0; ri < s.result.length; ri++) hlR[ri] = 'active';
|
||
}
|
||
var viz = llViz(ex.l1, {highs:hl1, ptrs:{p1:s.i1<ex.l1.length?s.i1:-1}, label:'链表1 (逆序)'});
|
||
viz += llViz(ex.l2, {highs:hl2, ptrs:{p2:s.i2<ex.l2.length?s.i2:-1}, label:'链表2 (逆序)'});
|
||
if (s.carry !== undefined && s.stage !== 'done') {
|
||
viz += '<div style="margin:6px 0;font-size:14px;"><b>carry = ' + s.carry + '</b></div>';
|
||
}
|
||
if (s.result && s.result.length > 0) {
|
||
viz += llViz(s.result, {highs:hlR, label:'结果 (逆序)'});
|
||
}
|
||
$('vizArea').innerHTML = viz;
|
||
$('detailContent').innerHTML = '<div class="calc-block">' + s.msg + '</div>';
|
||
if (s.stage === 'done') {
|
||
var num1 = ex.l1.slice().reverse().join('');
|
||
var num2 = ex.l2.slice().reverse().join('');
|
||
var numR = s.result.slice().reverse().join('');
|
||
$('resultContent').innerHTML = '<div class="final-answer">' + num1 + ' + ' + num2 + ' = ' + numR + '<br>结果链表：<b>[' + s.result.join(' → ') + ']</b></div>';
|
||
}
|
||
$('hintText').textContent = s.msg;
|
||
setPipeline(['init\u2192开始','calc\u2192计算','done\u2192完成'], s.stage);
|
||
}
|
||
|
||
function init() {
|
||
var sel = $('exampleSelect');
|
||
examples.forEach(function(e,i){ sel.innerHTML += '<option value="'+i+'">'+e.label+'</option>'; });
|
||
$('inputArea').value = 'l1=[2,4,3] l2=[5,6,4]';
|
||
buildSteps(examples[0]);
|
||
stepCtrl = new StepController({onStep:render});
|
||
stepCtrl.setSteps(steps.map(function(_,i){return i;}));
|
||
$('stepInfo').textContent = '步骤 1 / ' + steps.length;
|
||
stepCtrl.onStep = function(idx){ render(idx); $('stepInfo').textContent = '步骤 '+(idx+1)+' / '+steps.length; };
|
||
$('applyBtn').onclick = function(){ buildSteps(examples[parseInt($('exampleSelect').value)]); stepCtrl.setSteps(steps.map(function(_,i){return i;})); render(0); };
|
||
$('exampleSelect').onchange = function(){ buildSteps(examples[parseInt($('exampleSelect').value)]); stepCtrl.setSteps(steps.map(function(_,i){return i;})); render(0); };
|
||
$('prevBtn').onclick = function(){ stepCtrl.prev(); };
|
||
$('nextBtn').onclick = function(){ stepCtrl.next(); };
|
||
$('jumpBtn').onclick = function(){ stepCtrl.jumpToEnd(); };
|
||
$('autoBtn').onclick = function(){ var on=stepCtrl.toggleAuto(); $('autoBtn').textContent=on?'暂停':'自动播放'; };
|
||
$('resetBtn').onclick = function(){ stepCtrl.reset(); $('autoBtn').textContent='自动播放'; };
|
||
}
|
||
init();
|
||
$('codeArea').innerHTML = renderCode('def addTwoNumbers(l1, l2):\n dummy = ListNode(0)\n curr = dummy\n carry = 0\n while l1 or l2 or carry:\n v1 = l1.val if l1 else 0\n v2 = l2.val if l2 else 0\n s = v1 + v2 + carry\n carry = s // 10\n curr.next = ListNode(s % 10)\n curr = curr.next\n l1 = l1.next if l1 else None\n l2 = l2.next if l2 else None\n return dummy.next', {lang:'Python'});
|
||
|
||
})();
|
||
</script>
|
||
</body>
|
||
</html> |