7a.c

#include <stdio.h>

int main(int argc, char const *argv[])
{
  int ms, mp[10], i, temp, n = 0;
  char ch = 'y';

  printf("\nEnter the total memory available (in Bytes)-- ");
  scanf("%d", &ms);
  temp = ms;
  for (i = 0; ch == 'y'; i++, n++)
  {
    printf("\nEnter memory required for process %d (in Bytes) -- ", i + 1);
    scanf("%d", &mp[i]);
    if (mp[i] <= temp)
    {
      printf("\nMemory is allocated for Process %d ", i + 1);
      temp = temp - mp[i];
    }
    else
    {
      printf("\nMemory is Full");
      break;
    }
    printf("\nDo you want to continue(y/n) -- ");
    scanf(" %c", &ch);
  }
  printf("\n\nTotal Memory Available -- %d", ms);
  printf("\n\n\tPROCESS\t\t MEMORY ALLOCATED ");
  for (i = 0; i < n; i++)
    printf("\n \t%d\t\t%d", i + 1, mp[i]);
  printf("\n\nTotal Memory Allocated is %d", ms - temp);
  printf("\nTotal External Fragmentation is %d", temp);
  printf("\n");
  return 0;
}