Submission #912271

#	Time	Username	Problem	Language	Result	Execution time	Memory
912271		tanprodium	Stove (JOI18_stove)	C++14	Compilation error	0 ms	0 KiB

stove

#include <bits/stdc++.h>
#include <cstdio>
#include <cstdlib>
#include <algorithm>
#include <string>
#include "combo.h"

using namespace std;

namespace {

constexpr int MAX_N = 2000;
constexpr int MAX_NUM_MOVES = 8000;

int N;
std::string S;

int num_moves;

void wrong_answer(const char *MSG) {
  printf("Wrong Answer: %s\n", MSG);
  exit(0);
}

}  // namespace

int press(std::string p) {
  if (++num_moves > MAX_NUM_MOVES) {
    wrong_answer("too many moves");
  }
  int len = p.length();
  if (len > 4 * N) {
    wrong_answer("invalid press");
  }
  for (int i = 0; i < len; ++i) {
    if (p[i] != 'A' && p[i] != 'B' && p[i] != 'X' && p[i] != 'Y') {
      wrong_answer("invalid press");
    }
  }
  int coins = 0;
  for (int i = 0, j = 0; i < len; ++i) {
    if (j < N && S[j] == p[i]) {
      ++j;
    } else if (S[0] == p[i]) {
      j = 1;
    } else {
      j = 0;
    }
    coins = std::max(coins, j);
  }
  return coins;
}

string guess_sequence(int N) {
    string c = "ABXY";
    if (press("AB") >= 1) {
        if (press("A") == 1) {
        } else {
            swap(c[0], c[1]);
        }
    } else {
        if (press("X") == 1) {
            swap(c[0], c[2]);
        } else {
            swap(c[0], c[3]);
        }
    }
    string S = "";
    S += c[0];
    if (N == 1) return(S);
    for (int i = 2; i < N; i++) {
        string str = S + c[1] + c[1] + S + c[1] + c[2] + S + c[1] + c[3] + S + c[2];
        int sz = (int)S.size();
        int taken = press(str);
        //cerr << str << ' ' << taken << '\n';
        if (taken - sz == 2)
            S += c[1];
        else if (taken - sz == 1)
            S += c[2];
        else S += c[3];
    }
    for (int i = 1; i <= 2; i++) {
        string str = S + c[i];
        if (press(str) == N) {
            S += c[i];
            return (S);
        }
    }
    S += c[3];
    return (S);
}

int main() {
  char buffer[MAX_N + 1];
  if (scanf("%s", buffer) != 1) {
    fprintf(stderr, "Error while reading input\n");
    exit(1);
  }
  S = buffer;
  N = S.length();

  num_moves = 0;
  std::string answer = guess_sequence(N);
  if (answer != S) {
    wrong_answer("wrong guess");
    exit(0);
  }
  printf("Accepted: %d\n", num_moves);
  return 0;
}

Compilation message (stderr)

stove.cpp:6:10: fatal error: combo.h: No such file or directory
    6 | #include "combo.h"
      |          ^~~~~~~~~
compilation terminated.