Help me in solving LIGHTHSE problem

help
,
1

My issue

values of x and y

My code

#include <stdio.h>
	    if (x >=  && y >= ) {
        return 'NE';
    } else if (x <  && y >= ) {
        return 'NW';
    } else if (x <  && y < ) {
        return 'SW';
    } else {
        return 'SE';
    }
}

int main() {
    int T;
    scanf("%d", &T);

    while(T--) {
        int N;
        scanf("%d", &N);

        int islands[N][2];
        
        for(int i = ; i < N; i++) {
            scanf("%d %d", &islands[i][], &islands[i][1]);
        }

       // Find the number of lighthouses required
       printf("%d\n", N); 

       // Place the lighthouses with their configurations
       for(int i = 1; i <= N; i++) { 
           char quadrant = findQuadrant(islands[i-1][], islands[i-1][1]);
           printf("%d %c\n",i,quadrant);
      }
   }

   return ;
}
// your code goes here

}

Problem Link: Lighthouses Practice Coding Problem