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Source Code
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#include <stdio.h>
void main()
{ int n1, n5,p=1,k,ch=1;
int dec=0,i=1,j,d;
printf("\n\nConvert Octal to Decimal:\n ");
printf("-------------------------\n");
printf("Input an octal number (using digit 0 - 7) :");
scanf("%d",&n1);
n5=n1;
for(;n1>0;n1=n1/10)
{
k=n1 % 10;
if(k>=8)
{
ch=0;
}
}
switch(ch)
{
case 0 :
printf("\nThe number is not an octal number. \n\n");
break;
case 1:
n1=n5;
for (j=n1;j>0;j=j/10)
{
d = j % 10;
if(i==1)
p=p*1;
else
p=p*8;
dec=dec+(d*p);
i++;
}
printf("\nThe Octal Number : %d\nThe equivalent Decimal Number : %d \n\n",n5,dec);
break;
}
}
Compiling Program...
Standard Input:
Interactive Console
Text
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