Write a C++ program to develop a simple calculator. The program prompts a menu (as shown in the figure below) of calculations for a user to choose (from 1 to 4). Then it asks the user to input two integers for calculation. Assume the user's input is always correct and no data validation is required. Below are the sample inputs and outputs: Sample 1 Sample 2 MENU MENU 1. Divide. a/b 2. Multiply. a*b 3. Power. a^b 4. Square root. sqrt(a) 1. Divide. a/b 2. Multiply. a*b 3. Power. a^b 4. Square root. sqrt(a) Enter your choice:1 Enter two numbers:4 3 Enter your choice:2 Enter two numbers:3 4 4/3=1.33333 3*4=12 Sample 3 Sample 4 MENU MENU 1. Divide, a/b 2. Multiply. a*b 3. Power. a^b 4. Square root. sqrt(a) 1. Divide. a/b 2. Multiply. a*b 3. Power. a^b 4. Square root. sqrt(a)| Enter your choice:3 Enter two numbers:4 2 Enter your choice:4 Enter a number:15 4^2=16 sqrt(15)=3.87298

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