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Binary exponentiation for calculation of exponential in O(log(n)) #9

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Binary exponentiation for calculation of exponential in O(log(n)) #9

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31 changes: 21 additions & 10 deletions calculator/__init__.py
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Original file line number Diff line number Diff line change
Expand Up @@ -17,7 +17,27 @@ def ADD():
sum=a+b
response = "sum of 2 numbers = " + str(sum)
return response

@app.route("/expo", methods=["POST"])
def expo():
jsonStr = request.get_json()
jsonObj = json.loads(jsonStr)

a=int(jsonObj['N1'])
b=int(jsonObj['N2'])
x=a
y=b

ans=1;
while(b):

if(b&1): ans = (ans*a)
a = (a*a)
b=b>>1

response = str(x) + "to the power " +str(y)+ " equals " +str(ans)
return response

@app.route("/xyz", methods=["POST"])
def XYZ():
jsonStr = request.get_json()
Expand All @@ -29,15 +49,6 @@ def XYZ():
# Logic for function assigned to you as in pdf

return 1
def subtract(a,b):
jsonStr = request.get_json()
jsonObj = json.loads(jsonStr)
a=int(jsonObj['N1'])
b=int(jsonObj['N2'])
return a-b




if __name__== "__main__":
app.run()
app.run()
3 changes: 2 additions & 1 deletion calculator/templates/InputOutput.html
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Expand Up @@ -10,7 +10,8 @@ <h2>Example</h2>
<form name="my_form" >
Please enter first number &nbsp; <input type="text" name = "N1"><br>
Please enter second number &nbsp; <input type="text" name = "N2"><br>
<input type="button" class="btn btn-sm" onclick="submitData('add')" value="add">
<input type="button" class="btn btn-sm" onclick="submitData('add')" value="add">
<input type="button" class="btn btn-sm" onclick="submitData('expo')" value="expo">
<input type="button" class="btn btn-sm" onclick="submitData('xyz')" value="xyz">
<!-- Add your input statements here -->
</form>
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