Write pseudo code or flow chart to find the value of 2n by using a for loop, where n is an integer value the user enters at the keyboard. Test these examples: 20=1 25=32 Write down the C++ code and dry run it using the examples (You can use dev c++ for verifying your code). Task # 4: Write pseudo code for a program that uses while loop and: Takes 5 integers from user (both positive and negative). Gives the sum of all positive numbers. iii. Give the sum of all negative numbers. (Hint : Use while loop and if-else statements) Example: User input: 5 -7 1 2 -3 Positive sum = 8 Negative sum = -10. Write down c++ code and dry run it using the examples (You can use dev c++ for verifying your code).
Types of Loop
Loops are the elements of programming in which a part of code is repeated a particular number of times. Loop executes the series of statements many times till the conditional statement becomes false.
Loops
Any task which is repeated more than one time is called a loop. Basically, loops can be divided into three types as while, do-while and for loop. There are so many programming languages like C, C++, JAVA, PYTHON, and many more where looping statements can be used for repetitive execution.
While Loop
Loop is a feature in the programming language. It helps us to execute a set of instructions regularly. The block of code executes until some conditions provided within that Loop are true.
Task # 3:
- Write pseudo code or flow chart to find the value of 2n by using a for loop, where n is an integer value the user enters at the keyboard.
Test these examples:
20=1
25=32
- Write down the C++ code and dry run it using the examples (You can use dev c++ for verifying your code).
Task # 4:
- Write pseudo code for a program that uses while loop and:
- Takes 5 integers from user (both positive and negative).
- Gives the sum of all positive numbers.
iii. Give the sum of all negative numbers.
(Hint : Use while loop and if-else statements)
Example:
User input: 5 -7 1 2 -3
Positive sum = 8
Negative sum = -10.
- Write down c++ code and dry run it using the examples (You can use dev c++ for verifying your code).
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