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Question:


In the WSClock algorithm of Fig. 3-20(c), the hand points to a page with R = 0. If ? = 400, will this page be removed? What about if ? = 1000?

In the WSClock algorithm of Fig. 3-20(c), the hand

Answer:


Welcome Student

if the hand points to has R=0  Shown in your question

and the age is greater than x and the page is clean , it is not working set and valid

copy exists on the disk

Here 2204 is Current Virtual time taken

If age of the page is 2204 - 1213 = 991.

If T=400 , Its definitely out of the working set and it was not recently referenced so it will be evicted

the T=1000 the situation is different .. Now the page falls within the woring set , so it is not removed

ST

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A palindrome is a number or a text phrase that reads the same backwards as forwards. For example, each of the following five-digit integers is a palindrome: 12321, 55555, 45554 and 11611. Write a C++ program that reads in a five-digit integer and determines whether it is a palindrome .

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Question: A palindrome is a number or a text phrase that reads the same backwards as forwards. For example, each of the following five-digit integers is a palindrome: 12321, 55555, 45554 and 11611. Write a C++ program that reads in a five-digit integer and determines whether it is a palindrome . Answer: Step 1 PROGRAMING CODE:   #include <stdio.h> int main() {   int n, a, b, c, d, e;   int digit = 0;   printf( "Enter one 5 digit number: \n" );   scanf( "%d", &n );   a = n / 10000;   b = n / 1000 % 10;   c = n / 100 % 10;   d = n / 10 % 10;   e = n % 10;   if ( a == e && b == d ) {     printf( "Palindrome!\n" );   }   if ( a != e || b != d ) {     printf( "Not a palindrome.. :(\n" );   }   return 0; } PROGRAM SCREENSHOT: Step 2
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