codility - TapeEquilibrium

Source code

int solution(int A[], int N) {
    // write your code in C99 (gcc 6.2.0)
    int i, sum = 0, result = 10000, min = 0, sum_A = 0;
     
    for(i = 1; i < N; i++)
        sum += A[i];
     
    for(i = 0; i < N-1; i++){
        min = (sum_A + A[i]) - sum;
        sum_A += A[i];
        sum -= A[i+1];
         
        if(min < 0)
            min *= -1;
         
        if(result > min)
            result = min;
    }
     
    return result;
}