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index.html
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index.html
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<!DOCTYPE html>
<html>
<head>
<style>
.outer{
}
.newspaper{
height: 200px;
width: 100px;
background-color: sienna;
}
.margin{
width: 40px;
}
</style>
</head>
<body>
<div class="outer">
<!-- <div style="position: static; z-index: 0;">
<div class="newspaper" style="z-index: 2;">
1
</div>
</div>
<div style="position: static; z-index: 0;">
<div class="newspaper" style="z-index: 1;">
2
</div>
</div> -->
<div style="position: relative;">
<div class="newspaper" style="z-index: 2; background-color: silver;">
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</div>
</div>
<div style="position: relative;">
<div class="newspaper" style="z-index: 1; background-color: slateblue;">
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</div>
</div>
</div>
</body>
</html>
<script>
function isSymmetrical(pRoot)
{
let same = true;
function isSame(left, right)
{
if((!left && right ) || (left && !right)) {
same=false;
return;
}
if(!left && !right) return;
if(left.val != right.val) {
same=false;
return;
}
isSame(left.left, right.right)
isSame(left.right, right.left);
}
if(!pRoot) return true;
isSame(pRoot.left, pRoot.right);
return same;
}
let h = {
val: 5,
left: {
val: 5,
left: {
val: 5,
left: null,
right: {
val: 5
}
},
right: null
},
right: {
val: 5,
left: null,
right: {
val: 5
}
},
}
console.log(isSymmetrical(h));
</script>