Submission #744886

#	Time	Username	Problem	Language	Result	Execution time	Memory
744886		arush_agu	Painting Walls (APIO20_paint)	C++17	28 / 100	187 ms	524288 KiB

paint

#include <algorithm>
#include <cctype>
#include <cmath>
#include <cstdio>
#include <cstring>
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>
#include <functional>
#include <iomanip>
#include <iostream>
#include <iterator>
#include <list>
#include <map>
#include <numeric>
#include <queue>
#include <set>
#include <sstream>
#include <stack>
#include <string>
#include <unordered_map>
#include <unordered_set>
#include <vector>

#ifdef DEBUG
#include <time.h>
#endif

#define all(a) (a).begin(), (a).end()
#define rev(a) (a).rbegin(), (a).rend()
#define F first
#define S second
int recur_depth = 0;
#ifdef DEBUG
#define dbg(x)                                                                 \
  {                                                                            \
    ++recur_depth;                                                             \
    auto x_ = x;                                                               \
    --recur_depth;                                                             \
    cerr << string(recur_depth, '\t') << "\e[91m" << __func__ << ":"           \
         << __LINE__ << "\t" << #x << " = " << x_ << "\e[39m" << endl;         \
  }
#else
#define dbg(x)
#endif

using namespace std;
using namespace __gnu_pbds;

typedef pair<int, int> ii;

typedef long long ll;
typedef long double ld;
typedef pair<ll, ll> llll;

typedef vector<int> vi;
typedef vector<vi> vvi;
typedef vector<pair<int, int>> vii;
typedef vector<vii> vvii;

typedef vector<ll> vl;
typedef vector<vl> vvl;
typedef vector<pair<ll, ll>> vll;
typedef vector<vll> vvll;

typedef vector<bool> vb;

template <class type1>
using ordered_set = tree<type1, null_type, less<type1>, rb_tree_tag,
                         tree_order_statistics_node_update>;

template <typename A, typename B>
ostream &operator<<(ostream &os, const pair<A, B> &p) {
  return os << '(' << p.first << ", " << p.second << ')';
}
template <typename T_container, typename T = typename enable_if<
                                    !is_same<T_container, string>::value,
                                    typename T_container::value_type>::type>
ostream &operator<<(ostream &os, const T_container &v) {
  os << '{';
  string sep;
  for (const T &x : v)
    os << sep << x, sep = ", ";
  return os << '}';
}

const ll MOD = 1e9 + 7;
// const ll MOD = 998244353;
const ll INF = 1e9;
const ld EPS = 1e-9;

int minimumInstructions(int n, int m, int k, vi c, vi a, vvi b) {
  vvi bb(m, vi(k));
  for (int i=0; i<m; i++) {
    for (int col : b[i]) bb[i][col] = 1;
  }

  vb poss(n);
  for (int st=0; st+m<=n; st++) {
    for (int cont=0; cont<m; cont++) {
      bool f = 1;
      int cont_id = cont;
      for (int j=st; j<st+m; j++) {
        if (!bb[cont_id][c[j]]) {
          f = 0;
          break;
        }

        cont_id = (cont_id + 1) % m;
      }

      if (f) {
        poss[st] = 1;
        break;
      }
    }
  }

  vb can(n); for (int i=0; i<n; i++) if (poss[i]) {
    for (int j=i; j<i+m; j++) can[j] = 1;
  }
  for (int i=0; i<n; i++) if (!can[i]) {
    return -1;
  }

  int ans = 0;
  int idx = 0;
  while (idx < n) {
    ans++;
    while (!poss[idx]) idx--;
    idx += m;
  }

  return ans;
}

// void solve() {
//   int n, m, k; cin >> n >> m >> k;
//   vi c(n); for (int &x : c) cin >> x;
//   vi a(m); vvi b(m);
//   for (int i=0; i<m; i++) {
//     cin >> a[i];
//     for (int j=0; j<a[i]; j++) {
//       int x; cin >> x;
//       b[i].push_back(x);
//     }
//   }
//
//   cerr << n << " " << m << " " << k << "\n";
//   cerr << c << "\n";
//   cerr << a << "\n";
//   cerr << b << "\n";
//
//   cout << minimumInstructions(n, m, k, c, a, b) << "\n";
// }
//
// int main() {
//   ios_base::sync_with_stdio(0);
//   cin.tie(NULL);
//
//   clock_t start = clock();
//
//   int test_cases = 1;
//   /* cin >> test_cases; */
//
//   while (test_cases--)
//     solve();
//
// #ifdef DEBUG
//   cerr << fixed << setprecision(10)
//        << "\nTime Taken: " << (double)(clock() - start) / CLOCKS_PER_SEC
//        << "s\n";
// #endif
//   return 0;
// }

• Subtask 1: 0 / 12
• Subtask 2: 15 / 15
• Subtask 3: 13 / 13
• Subtask 4: 0 / 23
• Subtask 5: 0 / 37