Bracket Balance

#include <cstdio>

constexpr unsigned int LENGTH = 10e6;

int main()
{
    char *source = new char[LENGTH];
    scanf("%s", source);

    unsigned int queriesCount;
    scanf("%u", &queriesCount);

    unsigned int *queriesData = new unsigned int[queriesCount * 2];

    for (unsigned int i = 0; i < queriesCount * 2; i += 2)
    {
        scanf("%u %u", &queriesData[i], &queriesData[i + 1]);
    }

    char *answer = new char[queriesCount + 1];
    answer[queriesCount] = '\0';
    unsigned int writePointer = 0;
    for (unsigned int i = 0; i < queriesCount * 2; i += 2)
    {
        unsigned int openingBs = 0;
        unsigned int closingBs = 0;

        for (unsigned int j = queriesData[i] - 1; j <= queriesData[i + 1] - 1; j++)
        {
            if ('(' == source[j]) openingBs++;
            else closingBs++;
        }

        answer[writePointer] = openingBs == closingBs ? '1' : '0';
        writePointer++;
    }

    printf("%s", answer);

    return 0;
}