Reversing a Five Digit Number (Integer)
This program reverses a Five Digit number. The number is entered through the keyboard and worked upon by the program.
If a five-digit number is input through the keyboard, write a program to reverse the number.
/*Use an integer variable to store the reverse (say rev_num).
take out the first (rightmost) digit of the number.
Give it to rev_num.
Take out the 2nd digit from right.
Now multiply rev_num by 10 and add this new digit to it.
Do this till the last digit.
*/
/*To understand the program, assume that the five digit number -- 12345 is entered
Calculate the values manually and check against the given number.
The final result (reversed number) is going to be 54321*/
#include<stdio.h>
main()
{
int number, rev_num, next_digit,last_digit;
printf ("Enter the number that is to be reversed: ");
scanf("%d", &number);
last_digit = number - ((number / 10) * 10); /*units place*/
rev_num = last_digit; /* 5 */
next_digit = (number / 10) - ((number / 100) * 10); /*tenth's place*/
rev_num = (rev_num * 10) + next_digit; /*54*/
next_digit = (number / 100) - ((number / 1000) * 10); /*hundred's place*/
rev_num = (rev_num * 10) + next_digit; /*543*/
next_digit = (number / 1000) - ((number / 10000) * 10); /*thousand's place*/
rev_num = (rev_num * 10) + next_digit; /*5432*/
next_digit = (number / 10000) - ((number / 100000) * 10); /*ten thousand's place*/
rev_num = (rev_num * 10) + next_digit; /*54321*/
printf ("The Reversed Number is: %d",rev_num);
}
If a five-digit number is input through the keyboard, write a program to reverse the number.
/*Use an integer variable to store the reverse (say rev_num).
take out the first (rightmost) digit of the number.
Give it to rev_num.
Take out the 2nd digit from right.
Now multiply rev_num by 10 and add this new digit to it.
Do this till the last digit.
*/
/*To understand the program, assume that the five digit number -- 12345 is entered
Calculate the values manually and check against the given number.
The final result (reversed number) is going to be 54321*/
#include<stdio.h>
main()
{
int number, rev_num, next_digit,last_digit;
printf ("Enter the number that is to be reversed: ");
scanf("%d", &number);
last_digit = number - ((number / 10) * 10); /*units place*/
rev_num = last_digit; /* 5 */
next_digit = (number / 10) - ((number / 100) * 10); /*tenth's place*/
rev_num = (rev_num * 10) + next_digit; /*54*/
next_digit = (number / 100) - ((number / 1000) * 10); /*hundred's place*/
rev_num = (rev_num * 10) + next_digit; /*543*/
next_digit = (number / 1000) - ((number / 10000) * 10); /*thousand's place*/
rev_num = (rev_num * 10) + next_digit; /*5432*/
next_digit = (number / 10000) - ((number / 100000) * 10); /*ten thousand's place*/
rev_num = (rev_num * 10) + next_digit; /*54321*/
printf ("The Reversed Number is: %d",rev_num);
}
Comments
main( )
{
int x,result,next;
printf("Enter The number to revers=");
scanf("%d",&x);
//5th
result=x%10;
result=result*10;
//4th
next=(x/10)%10;
result=(result+next)*10;
//3rd
next=(x/100)%10;
result=(result+next)*10;
//2nd
next=(x/1000)%10;
result=(result+next)*10;
//1st
next=(x/10000)%10;
result=result+next;
printf("%d",result);
}
int main(){
int num,d1,d2,d3,d4,d5,renum,sum;
printf("Enter a five digit number:");
scanf("%d",&num);
d1=num/10000;
d2=(num%10000)/1000;
d3=(num%1000)/100;
d4=(num%100)/10;
d5=num%10;
renum=d5*10000+d4*1000+d3*100+d2*10+d1;
sum=d1+d2+d3+d4+d5;
printf("Reverse number:%d\n",renum);
printf("Sum:%d",sum);
getch();
}
in turbo c++ there is error
if you type 12345 output will come as 11215
whereas in dev c++ and same coding
output is correct that is 54321.
int main()
{
int num,a,b,c,d,e,aa,bb,cc,dd,ee;
printf("Enter the five digit number\n");
scanf("%d", &num);
e = num%10;
dd = num%100;
d = dd/10;
cc = num%1000;
c = cc/100;
bb = num%10000;
b = bb/1000;
aa = num%100000;
a = aa/10000;
printf("%d%d%d%d%d", e,d,c,b,a);
getchar();
getchar();
return 0;
}
for more help contact me at
timcook_apple@yahoo.com
#include
void main()
{
int long x,p,q,r,s,t;
clrscr();
printf("\nEnter a 5-digit number:\n\t:");
scanf("%ld",&x);
p=x/10000;
q=(x/1000)-(p*10);
r=x/100-(p*100)-(q*10);
s=(x/10)-(p*1000)-(q*100)-(r*10);
t=x-(p*10000)-(q*1000)-(r*100)-(s*10);
printf("The reerse of given No:\n\t: %ld %ld %ld %ld %ld",t,s,r,q,p);
getche();
}
main()
{
int number, last_digit, prev_digit, total;
printf("Enter the number to be written in reverse: ");
scanf("%d", &number);
last_digit=number%10;
total=last_digit*10000;
prev_digit=(number/10)%10;
total=total+(prev_digit*1000);
prev_digit=(number/100)%10;
total=total+(prev_digit*100);
prev_digit=(number/1000)%10;
total=total+(prev_digit*10);
prev_digit=(number/10000)%10;
total=total+prev_digit;
printf("\nThe reverse of the enetered number is %d", total);
getch();
}
#include
#include
#include
main()
{
int temp;
int rev=0;
cout<<"enter 5 digits to be reverse ";
cin>>temp;
for (int i=0;i<5;i++)
{
rev=(rev*10)+(temp%10);
temp/=10;
}
cout<<"reverse number is "<<rev;
getch();
}
Reverse of number means reverse the position of all digits of any number. For example reverse of 536 is 635