oj.uz

Submission #956528

# Submission time Handle Problem Language Result Execution time Memory
956528 2024-04-02T06:43:50 Z arush_agu Board (CEOI13_board) C++17
70 / 100
 200 ms 1140 KB 
#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 <random>
#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;

const int MAXN = 1e5 + 10;
char a_arr[MAXN], b_arr[MAXN];

int shorten(string curr, char ans[]) {
  int depth = 0;

  for (int i = 0; i < curr.size(); i++) {
    if (curr[i] == '1')
      ans[depth++] = 1;
    else if (curr[i] == '2')
      ans[depth++] = 2;
    else if (curr[i] == 'U')
      depth--;
    else if (curr[i] == 'L') {
      int curr_depth = depth - 1;
      while (ans[curr_depth] == 1)
        curr_depth--;
      ans[curr_depth++] = 1;
      while (curr_depth < depth)
        ans[curr_depth++] = 2;
    } else if (curr[i] == 'R') {
      int curr_depth = depth - 1;
      while (ans[curr_depth] == 2)
        curr_depth--;
      ans[curr_depth++] = 2;
      while (curr_depth < depth)
        ans[curr_depth++] = 1;
    }
  }

  return depth;
}

void solve() {
  string a, b;
  cin >> a >> b;

  int depth_a = shorten(a, a_arr);
  int depth_b = shorten(b, b_arr);

  if (depth_a == depth_b) {
    bool flag = 1;
    for (int i = 0; i < depth_a; i++)
      if (a_arr[i] != b_arr[i]) {
        flag = 0;
        break;
      }
    if (flag) {
      cout << "0\n";
      return;
    }
  }

  int flip = depth_a > depth_b ? -1 : 1;
  for (int i = 0; i < min(depth_a, depth_b); i++)
    if (a_arr[i] != b_arr[i]) {
      flip = a_arr[i] == 2 ? -1 : 1;
      break;
    }

  int best = INF;
  int hor_dist = 0;
  for (int depth = 0; depth <= min(depth_a, depth_b); depth++) {
    int curr = depth_a - depth + depth_b - depth + hor_dist;
    best = min(best, curr);

    hor_dist *= 2;
    if (a_arr[depth] != b_arr[depth])
      hor_dist += a_arr[depth] == 1 ? flip : -flip;
    if (hor_dist > 1e6 + 10)
      break;
  }

  cout << best << "\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;
}

Compilation message

board.cpp: In function 'int shorten(std::string, char*)':
board.cpp:98:21: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   98 |   for (int i = 0; i < curr.size(); i++) {
      |                   ~~^~~~~~~~~~~~~
board.cpp: In function 'int main()':
board.cpp:172:11: warning: unused variable 'start' [-Wunused-variable]
  172 |   clock_t start = clock();
      |           ^~~~~

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 860 KB Output is correct
2 Correct 1 ms 520 KB Output is correct
3 Correct 2 ms 600 KB Output is correct

Subtask #3
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct

Subtask #4
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 344 KB Output is correct
2 Correct 3 ms 860 KB Output is correct
3 Correct 1 ms 728 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct

Subtask #5
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 344 KB Output is correct
4 Correct 1 ms 344 KB Output is correct
5 Correct 0 ms 464 KB Output is correct

Subtask #6
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 348 KB Output is correct
2 Correct 1 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct

Subtask #7
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 604 KB Output is correct
2 Correct 2 ms 960 KB Output is correct
3 Correct 2 ms 604 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct

Subtask #8
0 / 10.0

# Verdict Execution time Memory Grader output
1 Execution timed out 1045 ms 1140 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #9
0 / 10.0

# Verdict Execution time Memory Grader output
1 Execution timed out 1054 ms 1120 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #10
0 / 10.0

# Verdict Execution time Memory Grader output
1 Execution timed out 1067 ms 1072 KB Time limit exceeded
2 Halted 0 ms 0 KB -