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73 lines
1.3 KiB
C++
73 lines
1.3 KiB
C++
/*
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* C++ Program to Find the minimum element of an array using Binary Search approach
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*/
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#include<iostream>
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#include<conio.h>
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using namespace std;
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void min_heapify(int *a, int i, int n)
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{
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int j, temp;
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temp = a[i];
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j = 2 * i;
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while (j <= n)
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{
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if (j < n && a[j+1] < a[j])
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j = j + 1;
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if (temp < a[j])
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break;
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else if (temp >= a[j])
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{
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a[j / 2] = a[j];
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j = 2 * j;
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}
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}
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a[j / 2] = temp;
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return;
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}
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void build_minheap(int *a, int n)
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{
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int i;
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for(i = n / 2; i >= 1; i--)
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{
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min_heapify(a, i, n);
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}
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}
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int main()
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{
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int n, i, x;
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cout<<"enter no of elements of array\n";
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cin>>n;
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int a[20];
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for (i = 1; i <= n; i++)
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{
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cout<<"enter element"<<(i)<<endl;
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cin>>a[i];
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}
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build_minheap(a, n);
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cout<<"Minimum element is "<<a[1]<<endl;
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getch();
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}
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/*
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Output
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enter no of elements of array
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8
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enter element1
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3
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enter element2
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7
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enter element3
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6
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enter element4
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1
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enter element5
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5
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enter element6
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4
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enter element7
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0
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enter element8
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2
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Minimum element is 0
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