// LV2.n^2배열 자르기
public static int() solution_slice_array(int n, long left, long right) {
int() answer = new int((int)(right-left+1));
int idx = 0;
for(long i = (long)Math.floor(left/n);i<=Math.floor(right/n);i++){
for(long j = 0;j<n;j++){
if(left <= i*n+j && i*n+j <= right){
answer(idx++) = (int)Math.max(i,j)+1;
}
}
}
return answer;
}