Biggest sum of consecutive NSNumbers in an NSArray

Biggest sum of consecutive NSNumbers in an NSArray

- (int) biggestSum:(NSArray*)array{
    int final = 0;
    int tempfinal = 0;
    for(int i = 0; i < array.count; i++){
        tempfinal = MAX(tempfinal+[((NSNumber*)array[i]) intValue],0);
        final = MAX(final,tempfinal);
    }
    return final;
}