제출 #582751

#제출 시각아이디문제언어결과실행 시간메모리
582751TimDee콤보 (IOI18_combo)C++14
컴파일 에러
0 ms0 KiB
#include <cstdio>
#include <cstdlib>
#include <algorithm>
#include <string>
//#include "combo.h"

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

#include <bits/stdc++.h>
using namespace std;

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);
  }
  //std::cout<<"ask "<<p<<' '<<coins<<'\n';
  return coins;
}

#include <bits/stdc++.h>
using namespace std;

#define forn(i,n) for (int i=0; i<n; ++i)
#define all(a) a.begin(), a.end()
#define pb(x) push_back(x)

std::string guess_sequence(int N) {
    
  int n=N;
  string s;
  //forn(i,n) s+='*';
  char f;
  if (press("AB")) {
    if (press("A")) {
      f='A';
    } else {
      f='B';
    }
  } else {
    if (press("X")) {
      f='X';
    } else {
      f='Y';
    }
  }

  vector<char> v;
  if (f!='A') v.pb('A'); if (f!='B') v.pb('B'); if (f!='X') v.pb('X'); if (f!='Y') v.pb('Y'); 

  s+=f;
  vector<char> Or;

  while (s.length()!=N) {

    string p=s;
    if (Or.size()) p+=Or[0];
    p+=v[0];
    p+=s;
    if (Or.size()) p+=Or[0];
    p+=v[1];

    int x = press(p);

    if (x==N) {
      string p=s;
      if (Or.size()) p+=Or[0];
      //p+=v[0];
      if (x==press(p+v[0])) return p+v[0];
      else return p+v[1];
    }

    if (x==s.length() && x==p.length()/2-1) {
      if (Or.size()) {
        s+=Or[0];
        Or.clear();
      }
      s+=v[2];
    }
    else if (x>s.length()+Or.size()/2){

      if (Or.size()) s+=Or[0];
      Or.clear();
      Or.pb(v[0]);
      Or.pb(v[1]);
      
    } else if(x>s.length()) {
      if (Or.size()) s+=Or[0];
      s+=v[2];
      Or.clear();
    } else {
      if (Or.size()) s+=Or[1];
      Or.clear();
    }

  }

  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);
  printf("Accepted: \n");
  return 0;
}

컴파일 시 표준 에러 (stderr) 메시지

combo.cpp: In function 'std::string guess_sequence(int)':
combo.cpp:83:3: warning: this 'if' clause does not guard... [-Wmisleading-indentation]
   83 |   if (f!='A') v.pb('A'); if (f!='B') v.pb('B'); if (f!='X') v.pb('X'); if (f!='Y') v.pb('Y');
      |   ^~
combo.cpp:83:26: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the 'if'
   83 |   if (f!='A') v.pb('A'); if (f!='B') v.pb('B'); if (f!='X') v.pb('X'); if (f!='Y') v.pb('Y');
      |                          ^~
combo.cpp:88:20: warning: comparison of integer expressions of different signedness: 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   88 |   while (s.length()!=N) {
      |          ~~~~~~~~~~^~~
combo.cpp:107:10: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  107 |     if (x==s.length() && x==p.length()/2-1) {
      |         ~^~~~~~~~~~~~
combo.cpp:107:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  107 |     if (x==s.length() && x==p.length()/2-1) {
      |                          ~^~~~~~~~~~~~~~~~
combo.cpp:114:15: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  114 |     else if (x>s.length()+Or.size()/2){
      |              ~^~~~~~~~~~~~~~~~~~~~~~~
combo.cpp:121:16: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  121 |     } else if(x>s.length()) {
      |               ~^~~~~~~~~~~
combo.cpp:64:7: warning: unused variable 'n' [-Wunused-variable]
   64 |   int n=N;
      |       ^
/usr/bin/ld: /tmp/ccqLJYyR.o: in function `press(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >)':
grader.cpp:(.text+0x0): multiple definition of `press(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >)'; /tmp/cckP6MYR.o:combo.cpp:(.text+0xf0): first defined here
/usr/bin/ld: /tmp/ccqLJYyR.o: in function `main':
grader.cpp:(.text.startup+0x0): multiple definition of `main'; /tmp/cckP6MYR.o:combo.cpp:(.text.startup+0x0): first defined here
collect2: error: ld returned 1 exit status