Answer Posted / priyankar kumar

//Write a program to find the octal equivalent of the entered number;
#include<stdio.h>
main()
{
int n,n1=0,n2=0,n3=0,n4=0,n5,a,b,c,d;
printf("enter the number in decimal
");
scanf("%d",&n);
c=n-1;
d=n+1;
if((n%8)>0)
{
while(n>0)
{
a=n%8;
n1=n1*10+a;
n=n/8;
}
n4=n1;
while(n1>0)
{
b=n1%10;
n2=n2*10+b;
n1=n1/10;
}
printf("octal equivalent=%d",n2);
}
else
{
while(c>0)
{
a=c%8;
n1=n1*10+a;
c=c/8;
}
while(n1>0)
{
b=n1%10;
n2=n2*10+b;
n1=n1/10;
}
while(d>0)
{
a= d%8;
n3=n3*10+a;
d=d/8;
}
while(n3>0)
{
b=n3%10;
n4=n4*10+b;
n3=n3/10;
}
n5=n2+(n4-n2)-1;
printf("octal number=%d
",n5);
}
getch();
}

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