#include<bits/stdc++.h>
using namespace std;
// Function to allocate memory to
// blocks as per First fit algorithm
void First_Fit(int block_size[], int total_blocks, int process_size[], int total_process) {
int allocation[total_process];
memset(allocation, -1, sizeof(allocation));
//this for loop wll pick eact process and allocate a first fit block to it
for (int i = 0; i < total_process; i++) {
for (int j = 0; j < total_blocks; j++) {
if (block_size[j] >= process_size[i]) {
allocation[i] = j;
block_size[j] -= process_size[i];
break;
}
}
}
cout << "\nProcess No.\tProcess Size\tBlock no.\n";
for (int i = 0; i < total_process; i++) {
cout << " " << i+1 << "\t\t" << process_size[i] << "\t\t";
if (allocation[i] != -1)
cout << allocation[i] + 1;
else
cout << "Not Allocated";
cout << endl;
}
}
int main() {
//create array to store block sizes
int block_size[] = {300, 50, 200, 350, 70};
//create array to store process sizes
int process_size[] = {200, 47, 212, 426, 10};
//variable total_blocks that contain total number of blocks
int total_blocks = sizeof(block_size) / sizeof(block_size[0]);
//variable total_process that contain total number of blocks
int total_process = sizeof(process_size) / sizeof(process_size[0]);
//calling the function First_fit
First_Fit(block_size, total_blocks, process_size, total_process);
return 0 ;
}
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