Problem p03329 (C++)

Buggy submission (status: Runtime Error):
#include <bits/stdc++.h>
using namespace std;

#define d(x) cerr << #x ":" << x << endl;
#define dd(x, y) cerr << "(" #x "," #y "):(" << x << "," << y << ")" << endl
#define rep(i, n) for (int i = (int)(0); i < (int)(n); i++)
#define repp(i, a, b) for (int i = (int)(a); i < (int)(b); i++)
#define all(v) v.begin(), v.end()
#define dump(v)                                                                \
  cerr << #v ":[ ";                                                            \
  for (auto macro_vi : v) {                                                    \
    cerr << macro_vi << " ";                                                   \
  }                                                                            \
  cerr << "]" << endl;
#define ddump(v)                                                               \
  cerr << #v ":" << endl;                                                      \
  for (auto macro_row : v) {                                                   \
    cerr << "[";                                                               \
    for (auto macro__vi : macro_row) {                                         \
      cerr << macro__vi << " ";                                                \
    }                                                                          \
    cerr << "]" << endl;                                                       \
  }
using lint = long long;
const int INF = 1e9;
const lint LINF = 1e18;
const lint MOD = 1e9 + 7;
const double EPS = 1e-10;

int main() {
  int N;
  cin >> N;

  vector<int> dp(N + 1, INF);
  dp[0] = 0;

  dp[0] = 0;
  for (int i = 0; i <= N; i++) {

    dp[i + 1] = min(dp[i + 1], dp[i] + 1);

    for (int j = 1; i + pow(6, j) <= N; j++) {
      int plus = pow(6, j);
      dp[i + plus] = min(dp[i + plus], dp[i] + 1);
    }

    for (int j = 1; i + pow(9, j) <= N; j++) {
      int plus = pow(9, j);
      dp[i + plus] = min(dp[i + plus], dp[i] + 1);
    }
  }
  cout << dp[N] << endl;
  return 0;
}

Fixed submission:
#include <bits/stdc++.h>
using namespace std;

#define d(x) cerr << #x ":" << x << endl;
#define dd(x, y) cerr << "(" #x "," #y "):(" << x << "," << y << ")" << endl
#define rep(i, n) for (int i = (int)(0); i < (int)(n); i++)
#define repp(i, a, b) for (int i = (int)(a); i < (int)(b); i++)
#define all(v) v.begin(), v.end()
#define dump(v)                                                                \
  cerr << #v ":[ ";                                                            \
  for (auto macro_vi : v) {                                                    \
    cerr << macro_vi << " ";                                                   \
  }                                                                            \
  cerr << "]" << endl;
#define ddump(v)                                                               \
  cerr << #v ":" << endl;                                                      \
  for (auto macro_row : v) {                                                   \
    cerr << "[";                                                               \
    for (auto macro__vi : macro_row) {                                         \
      cerr << macro__vi << " ";                                                \
    }                                                                          \
    cerr << "]" << endl;                                                       \
  }
using lint = long long;
const int INF = 1e9;
const lint LINF = 1e18;
const lint MOD = 1e9 + 7;
const double EPS = 1e-10;

int main() {
  int N;
  cin >> N;

  vector<int> dp(N + 1, INF);
  dp[0] = 0;

  dp[0] = 0;
  for (int i = 0; i < N; i++) {

    dp[i + 1] = min(dp[i + 1], dp[i] + 1);

    for (int j = 1; i + pow(6, j) <= N; j++) {
      int plus = pow(6, j);
      dp[i + plus] = min(dp[i + plus], dp[i] + 1);
    }

    for (int j = 1; i + pow(9, j) <= N; j++) {
      int plus = pow(9, j);
      dp[i + plus] = min(dp[i + plus], dp[i] + 1);
    }
  }
  cout << dp[N] << endl;
  return 0;
}