제출 #1086444

#제출 시각아이디문제언어결과실행 시간메모리
1086444Noname_1900콤보 (IOI18_combo)C++17
100 / 100
26 ms1884 KiB
#include "combo.h" #include <bits/stdc++.h> using namespace std; string l[4] = {"A", "B", "X", "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); } } 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; } /**/ std::string guess_sequence(int N) { std::string p = ""; std::string S = ""; l[0] = "A"; l[1] = "B"; l[2] = "X"; l[3] = "Y"; p = "AB"; int coins = press(p); int premLettre = 0; if(coins > 0) { p = "A"; coins = press(p); if(coins > 0) { premLettre = 0; } else { premLettre = 1; } } else { p = "X"; coins = press(p); if(coins > 0) { premLettre = 2; } else { premLettre = 3; } } p = ""; for (int i = 0; i < 4 * N; ++i) { p += l[premLettre]; } S += l[premLettre]; swap(l[premLettre], l[3]); if(N == 1) return S; for(int iLettre = 1; iLettre < N-1; iLettre++) { p = ""; int deuxiemeLettre = 0; for(int i = 0; i < 3; i++) { p += S + l[deuxiemeLettre] + l[deuxiemeLettre+i]; } p += S + l[deuxiemeLettre+1]; coins = press(p); if(coins == iLettre) { S += l[2]; } else if(coins == iLettre+1) { S += l[1]; } else { S += l[0]; } } string V = ""; V += S; V += l[0]; V += S; V += l[1]; coins = press(V); if(coins == N) { V = S; V += l[0]; coins = press(V); if(coins == N) { return V; } else { S += l[1]; return S; } } // else S += l[2]; return S; } /**/ /* int main() { while(true) { char buffer[MAX_N + 1]; if (scanf("%s", buffer) != 1) { fprintf(stderr, "Error while reading input\n"); exit(1); } S = buffer; N = S.length(); cout << N << "\n"; num_moves = 0; std::string answer = guess_sequence(N); if (answer != S) { wrong_answer("wrong guess"); // exit(0); } else printf("Accepted: %d\n", num_moves); //return 0; } } /**/

컴파일 시 표준 에러 (stderr) 메시지

combo.cpp:48:1: warning: "/*" within comment [-Wcomment]
   48 | /**/
      |  
combo.cpp:166:1: warning: "/*" within comment [-Wcomment]
  166 | /**/
      |
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