First Come First Serve(FCFS)

C Program First Come First Serve(FCFS)

Source Code:


#include <stdio.h>
#include <stdlib.h>
#include <math.h>

int main()
{
 float *brustTime, *waitingTime,*taTime;
 float tWTime = 0.0f, tTTime = 0.0f, avgW = 0.0f, prev = 0.0f;
 int n, i, j;

 printf("Enter Total Number Of Process: ");
 scanf("%d", &n);

 brustTime = (float*)malloc(sizeof(float) * n);
 waitingTime = (float*)malloc(sizeof(float) * n);
 taTime = (float*)malloc(sizeof(float) * n);


 for (i = 0; i < n; i++) {
  printf("Enter BrustTime For P%d: ",i);
  scanf("%f", &brustTime[i]);

 }

 printf("Gantt Chart:\n------------");
 printf("\n|");
 for (i = 0; i < n; i++) {
  for (j = 0; j < brustTime[i]; j++) {
   printf("###");
  }
  printf("|");
 }
 printf("\n0.0  ");
 for (i = 0; i < n; i++) {
  waitingTime[i] = prev; 
  for (j = 0; j < brustTime[i]; j++) {
   printf("  ");
  }
  prev += brustTime[i];
  printf("\b%.1f",prev);
  
  tWTime += waitingTime[i];
  tTTime += taTime[i];
 }

 printf("\n----------------------------------------------\n");
 printf("Process\tBTime\tWTime\tTATime\n");
 printf("----------------------------------------------\n");
 for (i = 0; i < n; i++) {
  printf("P%d\t%.1f\t%.1f\t%.1f\n",i, brustTime[i], waitingTime[i], taTime[i]);
 }
 printf("-----------------------------------------------\n");
 printf("Avg. WTime: %.1f | Avg. TTime: %.1f\n",tWTime/n,tTTime/n);
 printf("-----------------------------------------------\n");
 return 0;
}