Suppose that the input is 38 35 71 14 -1. What is the output of the following code? Assume all v

step 1 Let's find the output of the following program. In the first line, we have this sum equal to 0,

Suppose that the input is 38 35 71 14 -1. What is the output...

Key Concepts

Input/Output Operations

Input and output operations are fundamental for enabling interaction between a program and its external environment. These operations allow the program to read data provided by the user or another source and to display or output results accordingly, as demonstrated by reading numbers and printing a sum.

Accumulator

An accumulator is a variable that keeps a running total or aggregate value during the execution of a loop. In tasks such as summing a series of numbers, the accumulator is updated with each iteration, thereby maintaining the cumulative sum of all processed values.

While Loop

A while loop is a control structure that repeatedly executes a block of code as long as a specified condition remains true. It is particularly useful when the number of iterations is not known beforehand, allowing the program to continue processing until the loop condition is no longer satisfied.

Sentinel Value

A sentinel value is a special marker used to signal the end of a data input sequence or to terminate a loop. In many programming tasks, the sentinel value serves as a flag to stop processing, ensuring that the loop exits once this predefined value is encountered.

Transcript

00:01 Let's find the output of the following program.

00:03 In the first line, we have this sum equal to 0, which means the sum is initialized to 0.

00:09 And in the next line, we have n equal to 8.

00:12 That is, n is initialized to 8.

00:15 And in the statement number 30, we have this command, if n less than 1.

00:22 It is basically checking if n is less than 1, then go to 70.

00:28 That is line number 70 the control will be shifted to this statement let's check it out is 8 less than 1 no it is not which means it will not be shifted to 70 the it will be executing the following statement which means it will execute this and this as well as this so let's execute the statement number 40 in 40 we have sum equal to sum plus n star n which is basically adding the existing value of sum which is sum equal to 0 plus n star n if you replace n by 8 this will be 8 square is 64 so therefore the current value of sum is 64 and in the next line we can see that n is decremented by 2 n equal to n minus 2 is basically n is getting decremented by 2 which means n equal to 8 minus 2 so this gives the value of n equal to 6 and in the statement number 60 we have this statement go to 30 so this is an unconditional transfer so it will go to the statement number 30 so in when it comes to the statement number 30 it will start executing what we have done in the first loop so therefore we take the values of n and sum n equal to six now and sum equal to 64 is six less than one no it is not so therefore it will not go to 70 it will start executing the following statement so once again the sum is getting updated as sum plus square of n which means this is 64 plus square of n is which is 6 currently so 6 square is 36 so this is going to give the new value of sum as 100 therefore sum equal to 100 here and once again n is decremented by 2 therefore n equal to n minus 2 which is 6 minus 2 equal to 4 the new value or the updated value of n equal to 4 and once again there is an unconditional transfer to statement number 30 so again it comes back to this statement number 30 which means we are into the next loop in fact we are into the third loop so let's write down the values of n equal to 4 and the current value of sum equal to 100 so once again we will redo the all the operations which we are done in the first two loops that is sum will be updated by adding the current value of sum with the square of n which is 4 square is 16 so this is going to give the new value sum as 116, therefore sum equal to 116...

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