제출 #831838

#제출 시각아이디문제언어결과실행 시간메모리
831838matthewhutama콤보 (IOI18_combo)C++14
100 / 100
27 ms640 KiB
#include "combo.h" // #include <cstdio> // #include <cstdlib> // #include <algorithm> // #include <string> // #include "combo.h" #include <bits/stdc++.h> using namespace std; typedef long long ll; std::string guess_sequence(int N) { string ans; string opsi; if (press("AB") >= 1){ if (press("A") == 1){ ans = "A"; opsi = "BXY"; } else{ ans = "B"; opsi = "AXY"; } } else{ if (press("X") == 1){ ans = "X"; opsi = "ABY"; } else{ ans = "Y"; opsi = "ABX"; } } if (N == 1) return ans; for (int i = 2; i < N; i++){ string fi = ans + opsi[0], se = ans + opsi[1]; string ask = fi + se + opsi[0] + se + opsi[1] + se + opsi[2]; // cout<<ask<<"PPP"<<endl; ll u = press(ask); // cout<<u<<endl; if (u == ans.size() + 1){ ans = fi; } else if (u == ans.size() + 2){ ans = se; } else{ ans = ans + opsi[2]; } // cout<<ans<<endl; } if (press(ans + opsi[0]) == N){ ans += opsi[0]; } else if (press(ans + opsi[1]) == N){ ans += opsi[1]; } else{ ans += opsi[2]; } // cout<<ans; return ans; } // 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:39:15: warning: comparison of integer expressions of different signedness: 'll' {aka 'long long int'} and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   39 |         if (u == ans.size() + 1){
      |             ~~^~~~~~~~~~~~~~~~~
combo.cpp:42:20: warning: comparison of integer expressions of different signedness: 'll' {aka 'long long int'} and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   42 |         else if (u == ans.size() + 2){
      |                  ~~^~~~~~~~~~~~~~~~~
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