OJ Board

here is another sample output from my AC'ed code, a little bit different from above.

Case 1: -1
Case 2: 24786
Case 3: 20911
Case 4: 21213
Case 5: 15606
Case 6: 18168
Case 7: 16764
Case 8: 25441
Case 9: -1
Case 10: 13347
Case 11: -1
Case 12: 24691
Case 13: -1
Case 14: 25430
Case 15: -1
Case 16 ...

Sorry, I have found the error.
The input size of each line would be at most [+-]+8 chars+'.'+3+'\0' => 14, and I used only ten char to handle.
following is my WA code, I have tried the input mention above and gotten correct answer.
But it can not pass.
I just can not figure out where is the error ...

following is my WA code, I have tried the input mention above and gotten correct answer.
But it can not pass.
I just can not figure out where is the error part.
Any tricky input or any flaws this code?
thks

delete after AC
any one need my code for more thinking or any discussion, welcome to PM ...

HI! I always got WA. I don't know whats wrong with it.
can anyone tell me?

#include<iostream>
#include<sstream>
#include<string>
using namespace std;

const double M_PI=3.14159265358979323846;

int main() {
int n,r1,r2,t;
string input;
cin >> n; cin.ignore();
cout.setf(ios::fixed);
cout ...

I've got the following error with g++-2.95:

tmp.cc: In function `int main()':
tmp.cc:27: `uppercase' undeclared (first use this function)
tmp.cc:27: (Each undeclared identifier is reported only once
tmp.cc:27: for each function it appears in.)

but g++ 3.4.2 can work||
i change

#include<string ...

Here is my code
I can compile it in GCC of Freebsd and devc
but why compiler error?

#include<string>
#include<iostream>
#include<sstream>
#include<iomanip>
using namespace std;

int main() {
string input;
int loc_x,loc_neg,d;
while(cin>>input) {
loc_neg=input.find("-",0);
loc_x=input.find("0x ...