yes as Amahdy said :
just introduce one more line n ur program will run correctly
it works.... someone plz explain why it is so....
import java.util.Scanner;
/**
*
* @author Pardeep
*/
public class Reverse {
public void test(){
int n=0,l=0,i=0;
int j=0,c=0;
Scanner sc=new Scanner(System.in);
n=sc.nextInt(); //count no of test
cases
while(n>0){
String strn="";
String str1=sc.nextLine();
String str=sc.nextLine();
//String str=sc.nex
l=str.length();
String[] ar=new String[l];
j=0;
int count=0;
for(i=0;i<str.length();i++){ //count no of blank
spaces in string
if(str.charAt(i)==' '){
count++;
}
}
i=0;
for(i=str.length()-1;i>=0;i--){ //reverse the string
ar[j]=String.valueOf(str.charAt(i)); //store the value in
array ar[]
//System.out.println("while.."+ar[j]+j);
j+=1; //then increase
value in array element
if(str.charAt(i)==' '){ //if space occur
in string then pop up all array element and add in string variable
strn
for(int k=j-1;k>=0;k--){
strn+=ar[k];
}
j=0; // j is again
set to j=0
count--;//System.out.println(count); //count is
decremented
} //now we have
reversed the string and store it in string (strn),but not the first
word of string
if(count==0){ //if count
is zero then
strn+=" "; //space is
added to string
for(int m=0;m<=i;m++){ //variable
m is initialised to 0 and upto i
strn+=str.charAt(m); //store
each char in the string (strn)
}
i=-1;
}
}c++;
System.out.println("Case #:"+c +strn);
//Error:-output is printed (but getting space at first position)
n--;
}
}
public static void main(String a[]){
new Reverse().test();
}
}
On Mar 23, 10:02 pm, Amahdy <[email protected]> wrote:
> I think your problem is here:
>
> n = sc.nextInt();
>
> You read the integer (the count) but still at the same line, so you need to
> move one more line by typing:
>
> sc.nextLine();
>
> After it.
>
> I'm not sure if your code is correct though.
>
> -- AMahdy!www.amahdy.net
>
>
>
>
>
>
>
> On Wed, Mar 21, 2012 at 14:20, mandy <[email protected]> wrote:
> > here is a link to the problem...
> >http://code.google.com/codejam/contest/351101/dashboard#s=p1
> > Input:-this is a test
> > Output:-test a is this
> > I'm getting error in output and in while loop is not executing
> > properly...
> > So pls tell me what's wrong with this code...
> > Thanks a lot.
>
> > Mine solution is this..
>
> > /*
> > * To change this template, choose Tools | Templates
> > * and open the template in the editor.
> > */
> > package frame;
>
> > import java.util.Scanner;
>
> > /**
> > *
> > * @author Pardeep
> > */
> > public class Reverse {
> > public void test(){
> > int n=0,l=0,i=0;
> > int j=0,c=0;
> > Scanner sc=new Scanner(System.in);
> > n=sc.nextInt(); //count no of test
> > cases
> > while(n>0){
> > String strn="";
> > String str=sc.nextLine();
> > l=str.length();
> > String[] ar=new String[l];
> > j=0;
> > int count=0;
> > for(i=0;i<str.length();i++){ //count no of blank
> > spaces in string
> > if(str.charAt(i)==' '){
> > count++;
> > }
> > }
> > i=0;
> > for(i=str.length()-1;i>=0;i--){ //reverse the string
> > ar[j]=String.valueOf(str.charAt(i)); //store the value
> > in array ar[]
> > //System.out.println("while.."+ar[j]+j);
> > j+=1; //then increase
> > value in array element
> > if(str.charAt(i)==' '){ //if space occur
> > in string then pop up all array element and add in string variable
> > strn
> > for(int k=j-1;k>=0;k--){
> > strn+=ar[k];
> > }
> > j=0; // j is again
> > set to j=0
> > count--;//System.out.println(count); //count is
> > decremented
> > } //now we
> > have reversed the string and store it in string (strn),but not the
> > first word of string
> > if(count==0){ //if count
> > is zero then
> > strn+=" "; //space is
> > added to string
> > for(int m=0;m<=i;m++){ //variable
> > m is initialised to 0 and upto i
> > strn+=str.charAt(m); //store
> > each char in the string (strn)
> > }
> > i=-1;
> > }
> > }c++;
> > System.out.println("Case #:"+c
> > +strn); //Error:-output is printed (but getting
> > space at first position)
>
> > n--;
> > }
>
> > }
> > public static void main(String a[]){
> > new Reverse().test();
> > }
> > }
>
> > --
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