Submission #477057

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
477057	2021-09-30 03:13:13	Genius3435	Combo (IOI18_combo)	C++17	30 / 100	39 ms	288 KiB

combo

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#include "combo.h"
#include <algorithm>
#include <chrono>
#include <random>
#include <string>
#include <ctime>
using namespace std::string_literals;
const int t = std::chrono::high_resolution_clock::now().time_since_epoch().count();
inline int gen(int i) {
  static std::mt19937 rng = std::mt19937(t%10000/10);
  return rng() % i;
}
std::string guess_sequence(int N) {
  std::string cur; cur.resize(N);
  for (const char c: "ABXY") {
    if (press(""s+c)) {
      cur[0] = c; break;
    }
  }
  char poss[N][3], ind[N];
  for (int i = 1; i < N; ++i) {
    for (int k = 0, j = 0; j < 4; ++j)
      if ("ABXY"[j] != cur[0]) poss[i][k++] = "ABXY"[j];
 
 
הההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההה
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Compilation message (stderr)

combo.cpp: In function 'std::string guess_sequence(int)':
combo.cpp:37:28: warning: array subscript has type 'char' [-Wchar-subscripts]
   37 |   cur[known] = poss[known][++ind[known]];
      |                            ^~~~~~~~~~~~

• Subtask 1: 5 / 5
• Subtask 2: 25 / 95