제출 #154065

#제출 시각아이디문제언어결과실행 시간메모리
154065nthoang콤보 (IOI18_combo)C++11
컴파일 에러
0 ms0 KiB
#include <bits/stdc++.h> #ifndef LOCAL #include "combo.h" #endif #ifdef LOCAL #include "/Users/nth842002/Library/debug.h" int press(string p) { } int main() { } #endif using namespace std; const string moves = "ABXY"; string guess_sequence(int n) { srand(time(0)); string s; for (int i = 0; i < 3; i++) { s += moves[i]; if (press(s) == 1) { break; } s.pop_back(); } if (s.empty()) { s += moves[3]; } vector<string> avail(n); for (int i = 0; i < 4; i++) { if (moves[i] != s[0]) { avail[0] += moves[i]; } } for (int i = 1; i < n; i++) { avail[i] = avail[0]; assert((int) avail[i].size() == 3); random_shuffle(avail[i].begin(), avail[i].end()); } for (int i = 1; i < n; i++) { s += avail[i][0]; int t = press(s); if (t == i - 1) { s[i - 1] = avail[i - 1][2]; } else if (t == i) { s[i] = avail[i][1]; } } if (press(s) != n) { s[n - 1] = avail[i][2]; } assert((int) s.size() == n); return s; } /* Subtask: q <= 2N + 1 string guess_sequence(int n) { srand(time(0)); string s; for (int i = 0; i < 3; i++) { string t; t += moves[i]; if (press(t) == 1) { s += moves[i]; break; } } if (s.empty()) { s += moves[3]; } string avail; for (int i = 0; i < 4; i++) { if (moves[i] != s[0]) { avail += moves[i]; } } for (int i = 1; i < n; i++) { random_shuffle(avail.begin(), avail.end()); for (int j = 0; j < 2; j++) { s += avail[j]; if (press(s) == i + 1) { break; } s.pop_back(); } if (s.length() == i) { s += avail[2]; } } assert((int) s.length() == n); return s; } */

컴파일 시 표준 에러 (stderr) 메시지

combo.cpp: In function 'std::string guess_sequence(int)':
combo.cpp:51:22: error: 'i' was not declared in this scope
   51 |     s[n - 1] = avail[i][2];
      |                      ^