I have a running code of a dining philosophers problem but it has a logic problem where it loops right after it asks how many of the philosophers are hungry thus unable to calculate how exactly the philosophers are going to eat below is the code: #include #include #include #include #include void one(void); void two(void); void exit(); int tph, philname[20], howhung, hu[20], cho;//{}[] int main(void) { int i, status[10],philname[10],howhung; printf("\n\nDINING PHILOSOPHER PROBLEM"); printf("\nEnter the total no. of philosophers: "); scanf("%d",&i); for(i=0;i=1&&abs(hu[i]-hu[j])!=tph-1) { printf("\n\n combination %d \n", (s+1)); t=hu[i]; r=hu[j]; s++; if (r-t==1) continue; printf("\nP %d and P %d are granted to eat", t, r); for(x=0;x
I have a running code of a dining philosophers problem but it has a logic problem where it loops right after it asks how many of the philosophers are hungry thus unable to calculate how exactly the philosophers are going to eat
below is the code:
#include <stdio.h>
#include <stdlib.h>
#include <conio.h>
#include <math.h>
#include <string.h>
void one(void);
void two(void);
void exit();
int tph, philname[20], howhung, hu[20], cho;//{}[]
int main(void)
{
int i, status[10],philname[10],howhung;
printf("\n\nDINING PHILOSOPHER PROBLEM");
printf("\nEnter the total no. of philosophers: ");
scanf("%d",&i);
for(i=0;i<tph;i++)
{
philname[i] = (i+1);
status[i]=1;
}
printf("How many are hungry : ");
scanf("%d", &howhung);
if(howhung==tph)
{
printf("\nAll are hungry..\nDead lock stage will occur");
printf("\nExiting..");
}
else
{
for(i=0;i<howhung;i++)
{
printf("Enter philosopher %d position: ",(i+1));
scanf("%d", &hu[i]);
status[hu[i]]=2;
}
do
{
printf("\n\n 1. One can eat at a time\t 2.Two can eat at a time\t 3.Exit\nEnter your choice:");
scanf("%d", &cho);
switch(cho)
{
case 1: one();
break;
case 2: two();
break;
case 3: exit(0);
default: printf("\nInvalid option..");
}
}
while(1);
}
}
void one(void)
{
int pos=0, x, i;
printf("\nAllow one philosopher to eat at any time\n");
for(i=0;i<howhung; i++, pos++)
{
printf("\nP %d is granted to eat", hu[pos]);
for(x=pos+1;x<howhung;x++)
printf("\nP %d is waiting", hu[x]);
}
}
void two(void)
{
int i, j, s=0, t, r, x;
printf("\n Allow two philosophers to eat at the same time\n");
for(i=0;i<howhung;j++)
{
for(j=i+1;j<howhung;j++)
{
if(abs(hu[i]-hu[j])>=1&&abs(hu[i]-hu[j])!=tph-1)
{
printf("\n\n combination %d \n", (s+1));
t=hu[i];
r=hu[j];
s++;
if (r-t==1) continue;
printf("\nP %d and P %d are granted to eat", t, r);
for(x=0;x<howhung;x++)
{
if((hu[x]!=t)&&(hu[x]!=r))
printf("\nP%d is waiting", hu[x]);
}
}
}
}
}
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