Prerequisite : Partition allocation methods Worst Fit allocates a process to the partition which is largest sufficient among the freely available partitions available in the main memory. If a large process comes at a later stage, then memory will not have space to accommodate it.
1- Input memory blocks and processes with sizes.
2- Initialize all memory blocks as free.
3- Start by picking each process and find the
maximum block size that can be assigned to
current process i.e., find max(bockSize,
processSize[current], if found then assign
it to the current process.
5- If not then leave that process and keep checking
the further processes.
Below is implementation of above steps.
// C++ implementation of worst - Fit algorithm
// Function to allocate memory to blocks as per worst fit
Process No. Process Size Block no.
1 212 5
2 417 2
3 112 5
4 426 Not Allocated
This article is contributed by Sahil Chhabra (akku). If you like GeeksforGeeks and would like to contribute, you can also write an article using write.geeksforgeeks.org or mail your article to firstname.lastname@example.org. See your article appearing on the GeeksforGeeks main page and help other Geeks. Please write comments if you find anything incorrect, or you want to share more information about the topic discussed above.
Attention reader! Don’t stop learning now. Get hold of all the important DSA concepts with the DSA Self Paced Course at a student-friendly price and become industry ready. To complete your preparation from learning a language to DS Algo and many more, please refer Complete Interview Preparation Course.
In case you wish to attend live classes with industry experts, please refer Geeks Classes Live