C++
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x
69
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using namespace std;
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float binarySearch(float arr[], int left, int right, float x)
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{
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while (left <= right)
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{
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int mid = left + (right - left) / 2;
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if (arr[mid] == x)
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{
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return mid;
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}
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else if (arr[mid] > x)
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{
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left = mid + 1;
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}
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else
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{
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right = mid - 1;
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}
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}
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return -1;
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}
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int main()
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{
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float num;
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float output;
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float myarr[100] = {44.64978683, 44.62352548, 44.5972165, 44.57086043, 44.54445783,
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44.51800925, 44.49151522, 44.46497629, 44.43839299, 44.41176587,
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44.38509546, 44.35838228, 44.33162687, 44.30482976, 44.27799146,
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44.25111251, 44.22419342, 44.1972347, 44.17023688, 44.14320046,
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44.11612596, 44.08901388, 44.06186473, 44.03467901, 44.00745722,
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43.98019985, 43.95290742, 43.9255804, 43.89821929, 43.87082457,
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43.84339674, 43.81593628, 43.78844366, 43.76091937, 43.73336389,
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43.70577768, 43.67816122, 43.65051497, 43.62283941, 43.595135,
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43.56740221, 43.53964148, 43.51185328, 43.48403806, 43.45619628,
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43.42832838, 43.40043481, 43.37251603, 43.34457246, 43.31660456,
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43.28861275, 43.26059748, 43.23255917, 43.20449827, 43.17641519,
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43.14831036, 43.12018421, 43.09203716, 43.06386963, 43.03568203,
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43.00747477, 42.97924828, 42.95100295, 42.92273919, 42.89445742,
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42.86615803, 42.83784141, 42.80950798, 42.78115811, 42.75279222,
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42.72441067, 42.69601387, 42.6676022, 42.63917604, 42.61073577,
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42.58228177, 42.55381441, 42.52533407, 42.49684112, 42.46833593,
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42.43981886, 42.41129027, 42.38275054, 42.35420001, 42.32563904,
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42.29706799, 42.26848721, 42.23989705, 42.21129785, 42.18268996,
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42.15407372, 42.12544947, 42.09681755, 42.06817829, 42.03953203,
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42.01087909, 41.98221981, 41.9535545, 41.9248835, 41.89620711};
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//while(true)
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{
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cout << "Please enter an element to search" << endl;
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cin >> num;
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output = binarySearch(myarr, 0, 99, num);
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if (output == -1)
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{
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cout << "No Match Found" << endl;
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}
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else
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{
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cout << "Match found at position: " << output << endl;
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}
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}
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}
$ g++ prog.cc -Wall -Wextra -std=c++98 -pedantic
Stdin
44.03467901
Start
Please enter an element to search Match found at position: 23
0
Finish