Deadlock Handling

#include<stdio.h>

#include<conio.h>

void
main()

{

int r[10]={0},al[10]={0},ar,t=0,nr[10],n,i,p[10],a[10];

char ch;

clrscr();

printf("\n\n\t\tDeadlock
Handling");

printf("\n\t\t~~~~~~~~
~~~~~~~~");

do

{

printf("\nEnter
the No. of Process:");

scanf("%d",&n);

for(i=1;i<=n;i++)

{

printf("\n\tProcess
P%d:",i);

printf("\nEnter
the No. of Maximum resources:");

scanf("%d",&r[i]);

do

{

printf("\nEnter
the No. of Allocation:(<=%d):",r[i]);

scanf("%d",&al[i]);

}while(al[i]>r[i]);

}

printf("\n\nEnter
the number of Resource Available:");

scanf("%d",&ar);

printf("\n\tProcess\t\tMax\tAllocation\t\tAvailable");

for(i=1;i<=n;i++)

{

printf("\n\tP%d\t\t",i);

printf("%d\t%d",r[i],al[i]);

if(i==1)

printf("\t\t\t%d
",ar);

}

printf("\n\t\tOUTPUT");

printf("\n\t\t~~~~~~");

printf("\n\n\tProcess\t\tNo.
of Resource Need");

printf("\n\t~~~~~~~\t\t~~~~~~~~~~~~~~~~~~~~");

for(i=1;i<=n;i++)

{

nr[i]=r[i]-al[i];

printf("\n\tP%d\t\t%d",i,nr[i]);

}

t=0;

printf("\n\nProcess
Execution Order is =>\n\t<");

i=1;

while(i<=n)

{

if((nr[i]<=ar)&&(nr[i]!=1000))

{

printf(" P%d",i);

nr[i]=1000;

ar=ar+al[i];

t++;

i=1;

}

else
if(nr[i]==0)

{

printf(" P%d",i);

nr[i]=1000;

ar=ar+al[i];

t++;

i=1;

}

else

i++;

}

printf("
>");

if(t<n)

printf("\n\n\t\tDeadlock
is Occured");

fflush(stdin);

printf("\n\tDo
you want continue(Y/N):");

scanf("%c",&ch);

}while((ch=='y')(ch=='Y'));

getch();

}

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