Language: C++

#include <iostream>
#include <vector>
#include <string>
#include <algorithm>
#include <cmath>
#include <map>
#include <stack>
#include <queue>
#include <cstdlib>
#include <numeric>


/*
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*/


std::vector<long long> dp(100);
long long brute_force(long long p, long long sum, long long pos, std::vector<long long> a)
{
	long long ret = 0;
	if (pos == a.size()) {
		return (sum % 2 == p);
	}

	if (dp[pos] != -1) {
		return dp[pos];
	}
	ret += brute_force(p, sum + a[pos], pos + 1, a);
	ret += brute_force(p, sum, pos + 1, a);

	dp[pos] = ret;
	return ret;
}

int main()
{
	long long n, p;

	std::cin >> n >> p;

	std::vector<long long> a(n);
	for (int i = 0; i < n; i++) {
		std::cin >> a[i];
	}

	for (int i = 0; i < dp.size() i++) {
		dp[i] = -1;
	}

	std::cout << brute_force(p, 0, 0, a) << std::endl;
	

	return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:85:38: error: expected ';' before 'i'
   85 |         for (int i = 0; i < dp.size() i++) {
      |                                      ^~
      |                                      ;