Compiler error

[sano__sof]

#include <iostream.h>
void main(){
    int arr[100][2];
int x,y;
int i = 0;
	cin>>x;cin>>y;
		while ((x!=-1)&&(y!=-1)){
			arr[i][0] = x;
			arr[i][1] = y;
			i++;
			cin>>x;cin>>y;
		}
for( int j = 0; j <i ; j++){
    if ((arr[j][0] == 1) || (arr[j][1] == 1)){

	cout<<arr[j][0]<<"+"<<arr[j][1]<<"="<<arr[j][0]+arr[j][1]<<"\n";


}

else{
		
	cout<<arr[j][0]<<"+"<<arr[j][1]<<"!="<<arr[j][0]+arr[j][1]<<"\n";
}
}
}

this is my solution to spoj.pl/problems/ANARC08E/
it's working fine when i compile it using visual studio 2006
why do i get compiler error from the judge???

[leppyr64]

Here at spoj we use gcc.

If you click on the compilation error it will tell you why. In this case, just use #include, forget the .h. You also need using namespace std, because it doesn't know what cin and cout are otherwise. Visual c++ will do these things for you, gcc will not do what it's not told to do.

[sano__sof]

well what do you mean by namespace std????

[sano__sof]

my code now is like this :

#include <iostream>
int main(){
using namespace std;
    int arr[100][2];
int x,y;
int i = 0;
	cin>>x;cin>>y;
		while ((x!=-1)&&(y!=-1)){
			arr[i][0] = x;
			arr[i][1] = y;
			i++;
			cin>>x;cin>>y;
		}
for( int j = 0; j <i ; j++){
    if ((arr[j][0] == 1) || (arr[j][1] == 1)){

	cout<<arr[j][0]<<"+"<<arr[j][1]<<"="<<arr[j][0]+arr[j][1]<<"\n";


}

else{
		
	cout<<arr[j][0]<<"+"<<arr[j][1]<<"!="<<arr[j][0]+arr[j][1]<<"\n";
}
}
return 0;
}

but now am getting SIGSEGV run time error.....could someone tell me why????

[leppyr64]

Are you going to solve this problem in c++ or java? Pick one. I'm not going to debug the same issues in each language.

You're getting sigsegv because you're exceeding your array bounds. You have assumed that there can be at most 100 tet cases, which is WRONG.

Input a testcase, output a result, move to the next test case.