```A zero-indexed array A consisting of N integers is given. An equilibrium index of this array is any integer P such that 0 ≤ P < N and the sum of elements of lower indices is equal to the sum of elements of higher indices, i.e.

A + A + ... + A[P−1] = A[P+1] + ... + A[N−2] + A[N−1].

Sum of zero elements is assumed to be equal to 0. This can happen if P = 0 or if P = N−1.
```
```int solution(int A[], int N) {
// return 3 for [3,2,-5,1]
int sum_prefix = 0;
int sum_suffix = 0;
int i, j;
for (i = 0; i < N; i++) {
// Check if is is the equilibrium point
sum_prefix = 0;
for (j = 0; j < i; j++) {
sum_prefix += A[j];
}
sum_suffix = 0;
for (j = i+1; j < N; j++) {
sum_suffix += A[j];
// Compute suffix sum
}
if (sum_prefix == sum_suffix)
return i;
}
return -1;
}
```

## 3 thoughts on “”

1. Taxi Utrecht says:

Taxi Utrecht

Taxi Utrecht is een jonge en dynamische taxicentrale in Utrecht.
Wij zijn gespecialiseerd in het aanbieden van op maat gemaakte services op het gebied van taxivervoer in en rondom Utrecht.

Taxi Utrecht

2. Barrycef says:

There’s something to it, and it’s a good idea. I am ready to support you.
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More newsflash here site

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