Problem p00043 (C++) — buggy submission, verdict: Runtime Error

#include <algorithm>
#include <bitset>
#include <cmath>
#include <cstdio>
#include <cstdlib>
#include <cstring>
#include <iomanip>
#include <iostream>
#include <map>
#include <queue>
#include <set>
#include <sstream>
#include <string>
#include <vector>
#define INF 100000000
#define pb push_back
#define fi first
#define sec second
#define SS stringstream
using namespace std;
typedef pair<int, int> P;
typedef long long int ll;

string str;
char num[10] = {'0', '1', '2', '3', '4', '5', '6', '7', '8', '9'};
int t[10];

int main() {
  while (cin >> str) {
    vector<int> ans;
    for (int i = 0; i < 10; i++)
      t[i] = 0;
    for (int i = 0; i < str.size(); i++) {
      for (int j = 1; j < 10; j++) {
        if (str[i] == num[j]) {
          t[j]++;
          break;
        }
      }
    }
    bool flag = false;
    for (int i = 1; i < 10; i++) {
      if (t[i] > 4) {
        cout << "0" << endl;
        flag = true;
        break;
      }
    }
    if (flag == true)
      continue;
    for (int i = 1; i < 10; i++) {
      if (t[i] == 4)
        continue;
      t[i]++;
      for (int j = 1; j < 10; j++) {
        if (t[j] >= 2) {
          int temp[10];
          for (int k = 0; k < 10; k++)
            temp[k] = t[k];
          t[j] -= 2;
          for (int l = 1; l < 10; l++) {
            if (t[l] >= 3) {
              t[l] -= 3;
            }
            if (t[l] == 1 || t[l] == 2) {
              if (l > 7)
                break;
              if (t[l + 1] < t[l] || t[l + 2] < t[l])
                break;
              else {
                t[l + 1] -= t[l];
                t[l + 2] -= t[l];
                t[l] = 0;
              }
            }
          }
          bool hata = false;
          for (int k = 0; k < 10; k++) {
            if (t[k] != 0)
              break;
            if (k == 9) {
              ans.pb(i);
              hata = true;
            }
          }
          for (int k = 0; k < 10; k++)
            t[k] = temp[k];
          if (hata == true)
            break;
        }
      }
      t[i]--;
    }
    if (ans.size() == 0)
      cout << "0" << endl;
    else {
      cout << ans[0];
      for (int i = 1; i < ans.size(); i++) {
        cout << " " << ans[i];
      }
      cout << endl;
    }
  }
}

Error: 0

Fixed submission:

#include <algorithm>
#include <bitset>
#include <cmath>
#include <cstdio>
#include <cstdlib>
#include <cstring>
#include <iomanip>
#include <iostream>
#include <map>
#include <queue>
#include <set>
#include <sstream>
#include <string>
#include <vector>
#define INF 100000000
#define pb push_back
#define fi first
#define sec second
#define SS stringstream
using namespace std;
typedef pair<int, int> P;
typedef long long int ll;

string str;
char num[10] = {'0', '1', '2', '3', '4', '5', '6', '7', '8', '9'};
int t[10];

int main() {
  while (cin >> str) {
    vector<int> ans;
    for (int i = 0; i < 10; i++)
      t[i] = 0;
    for (int i = 0; i < str.size(); i++) {
      for (int j = 1; j < 10; j++) {
        if (str[i] == num[j]) {
          t[j]++;
          break;
        }
      }
    }
    bool flag = false;
    for (int i = 1; i < 10; i++) {
      if (t[i] > 4) {
        cout << "0" << endl;
        flag = true;
        break;
      }
    }
    if (flag == true)
      continue;
    for (int i = 1; i < 10; i++) {
      if (t[i] == 4)
        continue;
      t[i]++;
      for (int j = 1; j < 10; j++) {
        if (t[j] >= 2) {
          int temp[10];
          for (int k = 0; k < 10; k++)
            temp[k] = t[k];
          t[j] -= 2;
          for (int l = 1; l < 10; l++) {
            if (t[l] >= 3) {
              t[l] -= 3;
            }
            if (t[l] == 1 || t[l] == 2) {
              if (t[l + 1] < t[l] || t[l + 2] < t[l])
                break;
              else {
                t[l + 1] -= t[l];
                t[l + 2] -= t[l];
                t[l] = 0;
              }
            }
          }
          bool hata = false;
          for (int k = 0; k < 10; k++) {
            if (t[k] != 0)
              break;
            if (k == 9) {
              ans.pb(i);
              hata = true;
            }
          }
          for (int k = 0; k < 10; k++)
            t[k] = temp[k];
          if (hata == true)
            break;
        }
      }
      t[i]--;
    }
    if (ans.size() == 0)
      cout << "0" << endl;
    else {
      cout << ans[0];
      for (int i = 1; i < ans.size(); i++) {
        cout << " " << ans[i];
      }
      cout << endl;
    }
  }
}