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Dynamic Schedule Organiser.c
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Dynamic Schedule Organiser.c
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#include<stdio.h>
#include<conio.h>
#include<string.h>
#include<stdlib.h>
#include<ctype.h>
struct node
{
struct node *llink;
char data[30];
struct node *rlink;
};
struct node *firstmon=NULL;
struct node *firsttue=NULL;
struct node *firstwed=NULL;
struct node *firstthur=NULL;
struct node *firstfri=NULL;
struct node *firstsat=NULL;
FILE *fp1,*fp2,*fp3,*fp4,*fp5,*fp6,*up;
//-------------------------------------------------------------------STUDENT DISPLAY FUNCTION---------------------------------------------------------------------------
void sdisplay(int n)//FROM FILE
{
char mon[30];
char tue[30];
char wed[30];
char thur[30];
char fri[30];
char sat[30];
fp1=fopen("monday.txt","r");
fp2=fopen("tuesday.txt","r");
fp3=fopen("wednesday.txt","r");
fp4=fopen("thursday.txt","r");
fp5=fopen("friday.txt","r");
fp6=fopen("saturday.txt","r");
switch(n)
{
case 1: printf("MONDAY\t\t");
while(!feof(fp1))
{
fscanf(fp1,"%s",mon);
printf("%s\t",mon);
}
break;
case 2: printf("TUESDAY\t\t");
while(!feof(fp2))
{
fscanf(fp2,"%s",mon);
printf("%s\t",mon);
}
break;
case 3: printf("WEDNESDAY\t\t");
while(!feof(fp3))
{
fscanf(fp3,"%s",mon);
printf("%s\t",mon);
}
break;
case 4: printf("THURSDAY\t\t");
while(!feof(fp4))
{
fscanf(fp4,"%s",mon);
printf("%s\t",mon);
}
break;
case 5: printf("FRIDAY\t\t");
while(!feof(fp5))
{
fscanf(fp5,"%s",mon);
printf("%s\t",mon);
}
break;
case 6: printf("SATURDAY\t\t");
while(!feof(fp6))
{
fscanf(fp6,"%s",mon);
printf("%s\t",mon);
}
break;
case 7: //DISPLAY ALL
printf("MONDAY\t\t");
while(!feof(fp1))
{
fscanf(fp1,"%s",mon);
printf("%s\t",mon);
}
printf("\n");
printf("TUESDAY\t\t");
while(!feof(fp2))
{
fscanf(fp2,"%s",mon);
printf("%s\t",mon);
}
printf("\n");
printf("WEDNESDAY\t\t");
while(!feof(fp3))
{
fscanf(fp3,"%s",mon);
printf("%s\t",mon);
}
printf("\n");
printf("THURSDAY\t\t");
while(!feof(fp4))
{
fscanf(fp4,"%s",mon);
printf("%s\t",mon);
}
printf("\n");
printf("FRIDAY\t\t");
while(!feof(fp5))
{
fscanf(fp5,"%s",mon);
printf("%s\t",mon);
}
printf("\n");
printf("SATURDAY\t\t");
while(!feof(fp6))
{
fscanf(fp6,"%s",mon);
printf("%s\t",mon);
}
break;
fclose(fp1);
fclose(fp2);
fclose(fp3);
fclose(fp4);
fclose(fp5);
fclose(fp6);
}//SWITCH END
}//STUDENT DISPLAY FUNCTION END
//------------------------------------------------------------------------------DISPLAY FUNCTION------------------------------------------------------------------------
void display(int n)//FROM LINKED LIST
{
switch(n)
{
case 1:
printf("MONDAY\t\t\t");
if(firstmon==NULL)
{
printf("NO SCHEDULE FOR TODAY\n");
}
else
{
struct node *t;
t=firstmon;
while(t->rlink!=NULL)
{
printf("%s\t",t->data);
t=t->rlink;
}
printf("%s\t",t->data);
}
break;
case 2:
printf("TUESDAY\t\t\t");
if(firsttue==NULL)
{
printf("NO SCHEDULE FOR TODAY\n");
}
else
{
struct node *t;
t=firsttue;
while(t->rlink!=NULL)
{
printf("%s\t",t->data);
t=t->rlink;
}
printf("%s\t",t->data);
}
break;
case 3:
printf("WEDNESDAY\t\t");
if(firstwed==NULL)
{
printf("NO SCHEDULE FOR TODAY\n");
}
else
{
struct node *t;
t=firstwed;
while(t->rlink!=NULL)
{
printf("%s\t",t->data);
t=t->rlink;
}
printf("%s\t",t->data);
}
break;
case 4:
printf("THURSDAY\t\t");
if(firstthur==NULL)
{
printf("NO SCHEDULE FOR TODAY\n");
}
else
{
struct node *t;
t=firstthur;
while(t->rlink!=NULL)
{
printf("%s\t",t->data);
t=t->rlink;
}
printf("%s\t",t->data);
}
break;
case 5:
printf("FRIDAY\t\t\t");
if(firstfri==NULL)
{
printf("NO SCHEDULE FOR TODAY\n");
}
else
{
struct node *t;
t=firstfri;
while(t->rlink!=NULL)
{
printf("%s\t",t->data);
t=t->rlink;
}
printf("%s\t",t->data);
}
break;
case 6:
printf("SATURDAY\t\t");
if(firstsat==NULL)
{
printf("NO SCHEDULE FOR TODAY\n");
}
else
{
struct node *t;
t=firstsat;
while(t->rlink!=NULL)
{
printf("%s\t",t->data);
t=t->rlink;
}
printf("%s\t",t->data);
}
break;
case 7:
printf("MONDAY\t\t\t");
if(firstmon==NULL)
{
printf("NO SCHEDULE FOR TODAY\n");
}
else
{
struct node *t;
t=firstmon;
while(t->rlink!=NULL)
{
printf("%s\t",t->data);
t=t->rlink;
}
printf("%s\t",t->data);
printf("\n");
}
printf("TUESDAY\t\t\t");
if(firsttue==NULL)
{
printf("NO SCHEDULE FOR TODAY\n");
}
else
{
struct node *t;
t=firsttue;
while(t->rlink!=NULL)
{
printf("%s\t",t->data);
t=t->rlink;
}
printf("%s\t",t->data);
printf("\n");
}
printf("WEDNESDAY\t\t");
if(firstwed==NULL)
{
printf("NO SCHEDULE FOR TODAY\n");
}
else
{
struct node *t;
t=firstwed;
while(t->rlink!=NULL)
{
printf("%s\t",t->data);
t=t->rlink;
}
printf("%s\t",t->data);
printf("\n");
}
printf("THURSDAY\t\t");
if(firstthur==NULL)
{
printf("NO SCHEDULE FOR TODAY\n");
}
else
{
struct node *t;
t=firstthur;
while(t->rlink!=NULL)
{
printf("%s\t",t->data);
t=t->rlink;
}
printf("%s\t",t->data);
printf("\n");
}
printf("FRIDAY\t\t\t");
if(firstfri==NULL)
{
printf("NO SCHEDULE FOR TODAY\n");
}
else
{
struct node *t;
t=firstfri;
while(t->rlink!=NULL)
{
printf("%s\t",t->data);
t=t->rlink;
}
printf("%s\t",t->data);
printf("\n");
}
printf("SATURDAY\t\t");
if(firstsat==NULL)
{
printf("NO SCHEDULE FOR TODAY\n");
}
else
{
struct node *t;
t=firstsat;
while(t->rlink!=NULL)
{
printf("%s\t",t->data);
t=t->rlink;
}
printf("%s\t",t->data);
printf("\n");
}
break;
default:
printf("WRONG INPUT\n");
break;
}//SWITCH END
}//DISPLAY FUNCTION END
//------------------------------------------------------------------------------INSERT FUNCTION-------------------------------------------------------------------------
void insert_rear(char a[], int n)//FROM FILE TO LINKED LIST(PASS THE SUBJECT)
{
struct node *p;
p=(struct node*)malloc(sizeof(struct node));
fflush(stdin);
strcpy(p->data,a);
switch(n)
{
case 1:
if(firstmon==NULL)
{
p->llink=NULL;
p->rlink=NULL;
firstmon=p;
}
else
{
struct node *temp;
temp=firstmon;
while(temp->rlink!=NULL)
{
temp=temp->rlink;
}
temp->rlink=p;
p->rlink=NULL;
p->llink=temp;
}
break;
case 2:
if(firsttue==NULL)
{
p->llink=NULL;
p->rlink=NULL;
firsttue=p;
}
else
{
struct node *temp;
temp=firsttue;
while(temp->rlink!=NULL)
{
temp=temp->rlink;
}
temp->rlink=p;
p->rlink=NULL;
p->llink=temp;
}
break;
case 3:
if(firstwed==NULL)
{
p->llink=NULL;
p->rlink=NULL;
firstwed=p;
}
else
{
struct node *temp;
temp=firstwed;
while(temp->rlink!=NULL)
{
temp=temp->rlink;
}
temp->rlink=p;
p->rlink=NULL;
p->llink=temp;
}
break;
case 4:
if(firstthur==NULL)
{
p->llink=NULL;
p->rlink=NULL;
firstthur=p;
}
else
{
struct node *temp;
temp=firstthur;
while(temp->rlink!=NULL)
{
temp=temp->rlink;
}
temp->rlink=p;
p->rlink=NULL;
p->llink=temp;
}
break;
case 5:
if(firstfri==NULL)
{
p->llink=NULL;
p->rlink=NULL;
firstfri=p;
}
else
{
struct node *temp;
temp=firstfri;
while(temp->rlink!=NULL)
{
temp=temp->rlink;
}
temp->rlink=p;
p->rlink=NULL;
p->llink=temp;
}
break;
case 6:
if(firstsat==NULL)
{
p->llink=NULL;
p->rlink=NULL;
firstsat=p;
}
else
{
struct node *temp;
temp=firstsat;
while(temp->rlink!=NULL)
{
temp=temp->rlink;
}
temp->rlink=p;
p->rlink=NULL;
p->llink=temp;
}
break;
}//END OF SWITCH
}//INSERT REAR FUNCTION END
//-----------------------------------------------------------------------CREATE FUNCTION--------------------------------------------------------------------------------
void create()//CREATES LINKED LIST FOR THE FIRST TIME FROM FILE
{
char mon[30];
char tue[30];
char wed[30];
char thur[30];
char fri[30];
char sat[30];
fp1=fopen("monday.txt","r");
fp2=fopen("tuesday.txt","r");
fp3=fopen("wednesday.txt","r");
fp4=fopen("thursday.txt","r");
fp5=fopen("friday.txt","r");
fp6=fopen("saturday.txt","r");
while(!feof(fp1))
{
fscanf(fp1,"%s",mon);
insert_rear(mon,1);
}
while(!feof(fp2))
{
fscanf(fp2,"%s",tue);
insert_rear(tue,2);
}
while(!feof(fp3))
{
fscanf(fp3,"%s",wed);
insert_rear(wed,3);
}
while(!feof(fp4))
{
fscanf(fp4,"%s",thur);
insert_rear(thur,4);
}
while(!feof(fp5))
{
fscanf(fp5,"%s",fri);
insert_rear(fri,5);
}
while(!feof(fp6))
{
fscanf(fp6,"%s",sat);
insert_rear(sat,6);
}
fclose(fp1);
fclose(fp2);
fclose(fp3);
fclose(fp4);
fclose(fp5);
fclose(fp6);
}// CREATE FUNCTION END
//---------------------------------------------------------------------------------ADD FUNCTION------------------------------------------------------------------------
void add(char a[], int n)//ADD TO REAR
{
struct node *p;
p=(struct node*)malloc(sizeof(struct node));
fflush(stdin);
strcpy(p->data,a);
switch(n)
{
case 1:
if(firstmon==NULL)
{
p->llink=NULL;
p->rlink=NULL;
firstmon=p;
}
else
{
struct node *temp;
temp=firstmon;
while(temp->rlink!=NULL)
{
temp=temp->rlink;
}
temp->rlink=p;
p->rlink=NULL;
p->llink=temp;
}
printf("%s HAS BEEN ADDED TO MONDAY\n",a);
fp1=fopen("monday.txt","a");
fprintf(fp1," %s",a);
fclose(fp1);
break;
case 2:
if(firsttue==NULL)
{
p->llink=NULL;
p->rlink=NULL;
firsttue=p;
}
else
{
struct node *temp;
temp=firsttue;
while(temp->rlink!=NULL)
{
temp=temp->rlink;
}
temp->rlink=p;
p->rlink=NULL;
p->llink=temp;
}
printf("%s HAS BEEN ADDED TO TUESDAY\n",a);
fp2=fopen("tuesday.txt","a");
fprintf(fp2," %s",a);
fclose(fp2);
break;
case 3:
if(firstwed==NULL)
{
p->llink=NULL;
p->rlink=NULL;
firstwed=p;
}
else
{
struct node *temp;
temp=firstwed;
while(temp->rlink!=NULL)
{
temp=temp->rlink;
}
temp->rlink=p;
p->rlink=NULL;
p->llink=temp;
}
printf("%s HAS BEEN ADDED TO WEDNESDAY\n",a);
fp3=fopen("wednesday.txt","a");
fprintf(fp3," %s",a);
fclose(fp3);
break;
case 4:
if(firstthur==NULL)
{
p->llink=NULL;
p->rlink=NULL;
firstthur=p;
}
else
{
struct node *temp;
temp=firstthur;
while(temp->rlink!=NULL)
{
temp=temp->rlink;
}
temp->rlink=p;
p->rlink=NULL;
p->llink=temp;
}
printf("%s HAS BEEN ADDED TO THURSDAY\n",a);
fp4=fopen("thursday.txt","a");
fprintf(fp4," %s",a);
fclose(fp4);
break;
case 5:
if(firstfri==NULL)
{
p->llink=NULL;
p->rlink=NULL;
firstfri=p;
}
else
{
struct node *temp;
temp=firstfri;
while(temp->rlink!=NULL)
{
temp=temp->rlink;
}
temp->rlink=p;
p->rlink=NULL;
p->llink=temp;
}
printf("%s HAS BEEN ADDED TO FRIDAY\n",a);
fp5=fopen("friday.txt","a");
fprintf(fp5," %s",a);
fclose(fp5);
break;
case 6:
if(firstsat==NULL)
{
p->llink=NULL;
p->rlink=NULL;
firstsat=p;
}
else
{
struct node *temp;
temp=firstsat;
while(temp->rlink!=NULL)
{
temp=temp->rlink;
}
temp->rlink=p;
p->rlink=NULL;
p->llink=temp;
}
printf("%s HAS BEEN ADDED TO SATURDAY\n",a);
fp6=fopen("saturday.txt","a");
fprintf(fp6," %s",a);
fclose(fp6);
break;
}//END OF SWITCH
}//ADD FUNCTION END
//---------------------------------------------------------------------UPCOMING EVENTS FUNCTION------------------------------------------------------------------------
void upcoming(int n)
{
char buf1[50];
char buf2[50];
int c;
char o;
if(n==1)
{
up=fopen("upcoming.txt","r");
printf("DATE\t\t\t\t\tEVENT\n");
while(fscanf(up,"%s%s",&buf1,&buf2)!=EOF)
{
printf("%s\t\t\t\t\t%s\n",buf1,buf2);
}
fclose(up);
}
else if(n==2)
{
printf("*****ENTER 1 TO VIEW UPCOMING EVENTS AND 2 TO ADD NEW EVENTS*****\n");
scanf("%d",&c);
switch(c)
{
case 1: up=fopen("upcoming.txt","r");//VIEW UPCOMING EVENTS
printf("DATE\t\t\t\t\tEVENT\n");
while(fscanf(up,"%s%s",&buf1,&buf2)!=EOF)
{
printf("%s\t\t\t\t\t%s\n",buf1,buf2);
}
fclose(up);
break;
case 2: //ADD NEW EVENTS
do{
up=fopen("upcoming.txt","a");
printf("ENTER THE DATE AND EVENT\n");
fflush(stdin);
scanf("%s",&buf1);
scanf("%s",&buf2);
fprintf(up,"%s\t\t\t\t\t%s\n",buf1,buf2);
fclose(up);
printf("ADD MORE? Y/N \n");
fflush(stdin);
scanf("%c",&o);
}while(o=='y'||o=='Y');
}//SWICH END
}
}// UPCOMING EVENTS FUNCTION END
//-------------------------------------------------------------------UPDATE FUNCTION--------------------------------------------------------------------------------
void update(int d)
{
struct node *temp;
int co,pos; int c=1;
char sub[30], new[30];
printf("ENTER\n1. TO REPLACE A CLASS WITH ANOTHER SUBJECT\n2.TO REMOVE A CLASS\n");
scanf("%d",&co);
switch(d)
{
case 1:
if(co==1)
{
printf("ENTER THE SUBJECT YOU WANT TO REPLACE\n");
scanf("%s",&sub);
printf("ENTER THE POSITION\n");
scanf("%d",&pos);
printf("ENTER THE NEW SUBJECT\n");
scanf("%s",&new);
temp=firstmon;
if(firstmon==NULL)
printf("NO SCHEDULE EXISTS\n");
else
{
while(temp!=NULL)
{
if(strcmp(temp->data,sub)==0 && c==pos)
{
printf("%s SUBJECT IS UPDATED AT %d POSITION WITH %s SUBJECT\n",sub,pos,new);
strcpy(temp->data,new);
temp=firstmon;
fp1=fopen("monday.txt","w");
while(temp!=NULL)
{
fprintf(fp1,"%s\t",temp->data);
temp=temp->rlink;
}
fclose(fp1);
}
else
{
temp=temp->rlink;
c++;
}
}
}
}//IF REPLACE END
else if(co==2)
{
printf("ENTER THE SUBJECT YOU WANT TO REMOVE\n");
scanf("%s",&sub);
printf("ENTER THE POSITION\n");
scanf("%d",&pos);
temp=firstmon;
if(firstmon==NULL)
printf("NO SCHEDULE EXISTS\n");
else
{
while(temp!=NULL)
{
if(strcmp(temp->data,sub)==0 && c==pos)
{
printf("%s SUBJECT IS REMOVED AT %d POSITION\n",sub,pos);
strcpy(temp->data,"_");
temp=firstmon;
fp1=fopen("monday.txt","w");
while(temp!=NULL)
{
fprintf(fp1,"%s\t",temp->data);
temp=temp->rlink;
}
fclose(fp1);
}
else
{
temp=temp->rlink;
c++;
}
}
}
}//IF REMOVE CLASS END
break;
case 2:
if(co==1)
{
printf("ENTER THE SUBJECT YOU WANT TO REPLACE\n");
scanf("%s",&sub);
printf("ENTER THE POSITION\n");
scanf("%d",&pos);
printf("ENTER THE NEW SUBJECT\n");
scanf("%s",&new);
temp=firsttue;
if(firsttue==NULL)
printf("NO SCHEDULE EXISTS\n");
else
{
while(temp!=NULL)
{
if(strcmp(temp->data,sub)==0 && c==pos)
{
printf("%s SUBJECT IS UPDATED AT %d POSITION WITH %s SUBJECT\n",sub,pos,new);
strcpy(temp->data,new);
temp=firsttue;
fp2=fopen("tuesday.txt","w");
while(temp!=NULL)
{
fprintf(fp2,"%s\t",temp->data);
temp=temp->rlink;
}
fclose(fp2);
}
else
{
temp=temp->rlink;
c++;
}
}
}
}//IF REPLACE END
else if(co==2)
{
printf("ENTER THE SUBJECT YOU WANT TO REMOVE\n");
scanf("%s",&sub);
printf("ENTER THE POSITION\n");
scanf("%d",&pos);
temp=firsttue;
if(firsttue==NULL)
printf("NO SCHEDULE EXISTS\n");
else
{
while(temp!=NULL)
{
if(strcmp(temp->data,sub)==0 && c==pos)
{
printf("%s SUBJECT IS REMOVED AT %d POSITION\n",sub,pos);
strcpy(temp->data,"_");
temp=firsttue;
fp2=fopen("tuesday.txt","w");
while(temp!=NULL)
{
fprintf(fp2,"%s\t",temp->data);
temp=temp->rlink;
}
fclose(fp2);
}
else
{
temp=temp->rlink;
c++;
}
}
}
}//IF REMOVE CLASS END
break;
case 3:
if(co==1)
{
printf("ENTER THE SUBJECT YOU WANT TO REPLACE\n");
scanf("%s",&sub);
printf("ENTER THE POSITION\n");
scanf("%d",&pos);
printf("ENTER THE NEW SUBJECT\n");
scanf("%s",&new);
temp=firstwed;
if(firstwed==NULL)
printf("NO SCHEDULE EXISTS\n");
else
{
while(temp!=NULL)
{
if(strcmp(temp->data,sub)==0 && c==pos)
{
printf("%s SUBJECT IS UPDATED AT %d POSITION WITH %s SUBJECT\n",sub,pos,new);
strcpy(temp->data,new);
temp=firstwed;
fp3=fopen("wednesday.txt","w");
while(temp!=NULL)
{
fprintf(fp3,"%s\t",temp->data);
temp=temp->rlink;
}
fclose(fp3);
}
else
{
temp=temp->rlink;
c++;
}
}
}
}//IF REPLACE END
else if(co==2)
{
printf("ENTER THE SUBJECT YOU WANT TO REMOVE\n");
scanf("%s",&sub);
printf("ENTER THE POSITION\n");
scanf("%d",&pos);
temp=firstwed;
if(firstwed==NULL)
printf("NO SCHEDULE EXISTS\n");
else
{
while(temp!=NULL)
{
if(strcmp(temp->data,sub)==0 && c==pos)
{
printf("%s SUBJECT IS REMOVED AT %d POSITION\n",sub,pos);
strcpy(temp->data,"_");
temp=firstwed;
fp3=fopen("wednesday.txt","w");
while(temp!=NULL)
{
fprintf(fp3,"%s\t",temp->data);
temp=temp->rlink;
}
fclose(fp3);
}
else
{
temp=temp->rlink;
c++;
}
}
}
}//IF REMOVE CLASS END
break;
case 4:
if(co==1)
{
printf("ENTER THE SUBJECT YOU WANT TO REPLACE\n");
scanf("%s",&sub);
printf("ENTER THE POSITION\n");
scanf("%d",&pos);