제출 #491024

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
491024		tempus	Combo (IOI18_combo)	C++14	컴파일 에러	0 ms	0 KiB

combo

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


std::string guess_sequence(int N) {
  string s = "";
  for (int i = 0; i < N; ++ i) {
    string s1 = s, s2 = s, s3 = s;
    s1 += 'A';
    s2 += 'B';
    s3 += 'X';
    int q1 = press(s1), q2 = press(s2), q3 = press(s3);
    if (q1 == s1.size()) s = s1;
    else if (q2 == s2.size()) s = s2;
    else if (q3 == s3.size()) s = s3;
    else s += 'Y';
  }
}

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;
}
/*
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;
}*/

컴파일 시 표준 에러 (stderr) 메시지

combo.cpp: In function 'std::string guess_sequence(int)':
combo.cpp:19:12: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   19 |     if (q1 == s1.size()) s = s1;
      |         ~~~^~~~~~~~~~~~
combo.cpp:20:17: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   20 |     else if (q2 == s2.size()) s = s2;
      |              ~~~^~~~~~~~~~~~
combo.cpp:21:17: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   21 |     else if (q3 == s3.size()) s = s3;
      |              ~~~^~~~~~~~~~~~
combo.cpp:24:1: warning: no return statement in function returning non-void [-Wreturn-type]
   24 | }
      | ^
/usr/bin/ld: /tmp/ccMirkMk.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/cc0D8l7g.o:combo.cpp:(.text+0xf0): first defined here
collect2: error: ld returned 1 exit status