Problem p03170 (C++)

Buggy submission (status: Runtime Error):
#include "bits/stdc++.h"
using namespace std;
#define sim template <class c
#define ris return *this
#define dor > debug &operator<<
#define eni(x)                                                                 \
  sim > typename enable_if<sizeof dud<c>(0) x 1, debug &>::type operator<<(    \
            c i) {
sim > struct rge {
  c b, e;
};
sim > rge<c> range(c i, c j) { return rge<c>{i, j}; }
sim > auto dud(c *x) -> decltype(cerr << *x, 0);
sim > char dud(...);
struct debug {
#ifdef LOCAL
  ~debug() { cerr << endl; }
  eni(!=) cerr << boolalpha << i;
  ris;
} eni(==) ris << range(begin(i), end(i));
}
sim, class b dor(pair<b, c> d) {
  ris << "(" << d.first << ", " << d.second << ")";
}
sim dor(rge<c> d) {
  *this << "[";
  for (auto it = d.b; it != d.e; ++it)
    *this << ", " + 2 * (it == d.b) << *it;
  ris << "]";
}
#else
  sim dor(const c &) { ris; }
#endif
}
;
#define imie(...) " [" << #__VA_ARGS__ ": " << (__VA_ARGS__) << "] "

using ll = long long;
using ii = pair<int, int>;
using vi = vector<int>;
using vii = vector<ii>;
const int oo = 1e8 + 7;

int main() {

  int n, k;
  scanf("%d%d", &n, &k);

  vector<bool> winIfIs(k + 1, false);
  vi s(n);

  int minStone = oo;

  for (int i = 0; i < n; ++i) {
    scanf("%d", &s[i]);
    minStone = min(minStone, s[i]);
  }

  for (int i = minStone; i <= k; ++i) {
    for (int j = 0; j < n; ++j) {
      if (winIfIs[i - s[j]] == false) {
        winIfIs[i] = true;
        break;
      }
    }
  }

  if (winIfIs[k] == true) {
    cout << "First" << endl;
  } else {
    cout << "Second" << endl;
  }

  return 0;
}


Fixed submission:
#include "bits/stdc++.h"
using namespace std;
#define sim template <class c
#define ris return *this
#define dor > debug &operator<<
#define eni(x)                                                                 \
  sim > typename enable_if<sizeof dud<c>(0) x 1, debug &>::type operator<<(    \
            c i) {
sim > struct rge {
  c b, e;
};
sim > rge<c> range(c i, c j) { return rge<c>{i, j}; }
sim > auto dud(c *x) -> decltype(cerr << *x, 0);
sim > char dud(...);
struct debug {
#ifdef LOCAL
  ~debug() { cerr << endl; }
  eni(!=) cerr << boolalpha << i;
  ris;
} eni(==) ris << range(begin(i), end(i));
}
sim, class b dor(pair<b, c> d) {
  ris << "(" << d.first << ", " << d.second << ")";
}
sim dor(rge<c> d) {
  *this << "[";
  for (auto it = d.b; it != d.e; ++it)
    *this << ", " + 2 * (it == d.b) << *it;
  ris << "]";
}
#else
  sim dor(const c &) { ris; }
#endif
}
;
#define imie(...) " [" << #__VA_ARGS__ ": " << (__VA_ARGS__) << "] "

using ll = long long;
using ii = pair<int, int>;
using vi = vector<int>;
using vii = vector<ii>;
const int oo = 1e8 + 7;

int main() {

  int n, k;
  scanf("%d%d", &n, &k);

  vector<bool> winIfIs(k + 1, false);
  vi s(n);

  int minStone = oo;

  for (int i = 0; i < n; ++i) {
    scanf("%d", &s[i]);
    minStone = min(minStone, s[i]);
  }

  for (int i = minStone; i <= k; ++i) {
    for (int j = 0; j < n; ++j) {
      if (i - s[j] >= 0 && winIfIs[i - s[j]] == false) {
        winIfIs[i] = true;
        break;
      }
    }
  }

  if (winIfIs[k] == true) {
    cout << "First" << endl;
  } else {
    cout << "Second" << endl;
  }

  return 0;
}