# Median of Two Sorted Arrays. inout [], [1]. wrong answer.??

• double findMedianSortedArrays(int A[], int m, int B[], int n) {

``````    int ai = 0, bi = 0, num = 0;
double ans = 0;
while(num < (m + n) / 2) {
ans = (A[ai] <= B[bi] && ai < m)? A[ai++]:B[bi++];
++num;
}
if((m + n) % 2 == 0)
ans = (ans + (A[ai] <= B[bi]? A[ai]:B[bi])) / 2.0;
else
ans = (A[ai] <= B[bi]? A[ai]:B[bi]);
return ans;
}
``````

Input: [], [1]
Output: 0.00000
Expected: 1.00000

I don't konw why there is this err.

• For this test case, only the code after else is executed.

``````else
ans = (A[ai] <= B[bi]? A[ai]:B[bi]);
``````

and the while loop is not executed due to `num == (m+n)/2 == 0`.

There is a problem that you are accessing first element of A[] while the length of it is supposed to be zero. The A[ai] is out of index. The value is most likely 0, based on your output. It also could be -1218465804 if the array is declared as int A[0];

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