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min heap cpp

DanH 
priority_queue <int, vector<int>, greater<int>> minHeap;
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3.83
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Alex D 80 points 

                                    #include&lt;queue&gt;
std::priority_queue &lt;int, std::vector&lt;int&gt;, std::greater&lt;int&gt; &gt; minHeap;

3.83 (6 Votes)
0
3
1
ThatOneWeeb 115 points 

                                    #include &lt;iostream&gt;
using namespace std;
void max_heap(int *a, int m, int n) {
&nbsp; &nbsp;int j, t;
&nbsp; &nbsp;t = a[m];
&nbsp; &nbsp;j = 2 * m;
&nbsp; &nbsp;while (j &lt;= n) {
&nbsp; &nbsp; &nbsp; if (j &lt; n &amp;&amp; a[j+1] &gt; a[j])
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp;j = j + 1;
&nbsp; &nbsp; &nbsp; if (t &gt; a[j])
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp;break;
&nbsp; &nbsp; &nbsp; else if (t &lt;= a[j]) {
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp;a[j / 2] = a[j];
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp;j = 2 * j;
&nbsp; &nbsp; &nbsp; }
&nbsp; &nbsp;}
&nbsp; &nbsp;a[j/2] = t;
&nbsp; &nbsp;return;
}
void build_maxheap(int *a,int n) {
&nbsp; &nbsp;int k;
&nbsp; &nbsp;for(k = n/2; k &gt;= 1; k--) {
&nbsp; &nbsp; &nbsp; max_heap(a,k,n);
&nbsp; &nbsp;}
}
int main() {
&nbsp; &nbsp;int n, i;
&nbsp; &nbsp;cout&lt;&lt;&quot;enter no of elements of array\n&quot;;
&nbsp; &nbsp;cin&gt;&gt;n;
&nbsp; &nbsp;int a[30];
&nbsp; &nbsp;for (i = 1; i &lt;= n; i++) {
&nbsp; &nbsp; &nbsp; cout&lt;&lt;&quot;enter elements&quot;&lt;&lt;&quot; &quot;&lt;&lt;(i)&lt;&lt;endl;
&nbsp; &nbsp; &nbsp; cin&gt;&gt;a[i];
&nbsp; &nbsp;}
&nbsp; &nbsp;build_maxheap(a,n);
&nbsp; &nbsp;cout&lt;&lt;&quot;Max Heap\n&quot;;
&nbsp; &nbsp;for (i = 1; i &lt;= n; i++) {
&nbsp; &nbsp; &nbsp; cout&lt;&lt;a[i]&lt;&lt;endl;
&nbsp; &nbsp;}
}

3 (1 Votes)
0
3.9
10
Radwan Cherfy 125 points 

                                    priority_queue &lt;int&gt; maxHeap;

3.9 (10 Votes)
0
0
0
Sac 110 points 

                                    priority_queue &lt;int, vector&lt;int&gt;, greater&lt;int&gt; &gt; pq;

0
0
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