제출 #1051258

#제출 시각아이디문제언어결과실행 시간메모리
1051258thieunguyenhuy콤보 (IOI18_combo)C++17
100 / 100
16 ms2196 KiB
#ifndef hwe #include "combo.h" #endif #include <bits/stdc++.h> using namespace std; #define popcount(n) (__builtin_popcountll((n))) #define clz(n) (__builtin_clzll((n))) #define ctz(n) (__builtin_ctzll((n))) #define lg(n) (63 - __builtin_clzll((n))) #define BIT(n, i) (((n) >> (i)) & 1ll) #define MASK(i) (1ll << (i)) #define FLIP(n, i) ((n) ^ (1ll << (i))) #define ON(n, i) ((n) | MASK(i)) #define OFF(n, i) ((n) & ~MASK(i)) #define Int __int128 #define fi first #define se second typedef long long ll; typedef unsigned long long ull; typedef long double ld; typedef pair<int, int> pii; typedef pair<long long, long long> pll; typedef pair<long long, int> pli; typedef pair<int, long long> pil; typedef vector<pair<int, int>> vii; typedef vector<pair<long long, long long>> vll; typedef vector<pair<long long, int>> vli; typedef vector<pair<int, long long>> vil; template <class T1, class T2> bool maximize(T1 &x, T2 y) { if (x < y) { x = y; return true; } return false; } template <class T1, class T2> bool minimize(T1 &x, T2 y) { if (x > y) { x = y; return true; } return false; } template <class T> void remove_duplicate(vector<T> &ve) { sort (ve.begin(), ve.end()); ve.resize(unique(ve.begin(), ve.end()) - ve.begin()); } mt19937 rng(chrono::high_resolution_clock::now().time_since_epoch().count()); template <class T> T random(T l, T r) { return uniform_int_distribution<T>(l, r)(rng); } template <class T> T random(T r) { return rng() % r; } const int N = 1e6 + 5; const int MOD = 1e9 + 7; const int inf = 1e9; const ll INF = 1e18; string buttons[] = {"A", "B", "X", "Y"}; #ifdef hwe int press(string p) { cerr << "Press: " << p << '\n'; int ret; cin >> ret; return ret; } #endif string guess_sequence(int n) { int first_idx = -1; string ans = ""; if (press(buttons[0] + buttons[1])) { if (press(buttons[0])) first_idx = 0; else first_idx = 1; } else { if (press(buttons[2])) first_idx = 2; else first_idx = 3; } assert(first_idx != -1); ans = buttons[first_idx]; if (n == 1) return ans; int x = -1, y = -1, z = -1; for (int i = 0; i < 4; ++i) { if (i == first_idx) continue; if (x == -1) x = i; else if (y == -1) y = i; else z = i; } for (int i = 2; i < n; ++i) { string query = (ans + buttons[x]) + (ans + buttons[y] + buttons[x]) + (ans + buttons[y] + buttons[y]) + (ans + buttons[y] + buttons[z]); int query_ans = press(query); assert(ans.size() <= query_ans && query_ans <= ans.size() + 2); if (query_ans == ans.size() + 1) ans += buttons[x]; else if (query_ans == ans.size() + 2) ans += buttons[y]; else ans += buttons[z]; } // assert(press(ans) == n - 1); string query1 = ans + buttons[x], query2 = ans + buttons[y]; if (press(query1) == n) return query1; if (press(query2) == n) return query2; return ans + buttons[z]; } #ifdef hwe signed main() { ios_base::sync_with_stdio(false); cin.tie(NULL); cout.tie(NULL); int n; cin >> n; string ans = guess_sequence(n); cerr << "Guess: " << ans << '\n'; cerr << '\n'; return 0; } #endif

컴파일 시 표준 에러 (stderr) 메시지

In file included from /usr/include/c++/10/cassert:44,
                 from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:33,
                 from combo.cpp:5:
combo.cpp: In function 'std::string guess_sequence(int)':
combo.cpp:107:27: warning: comparison of integer expressions of different signedness: 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
  107 |         assert(ans.size() <= query_ans && query_ans <= ans.size() + 2);
      |                ~~~~~~~~~~~^~~~~~~~~~~~
combo.cpp:107:53: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  107 |         assert(ans.size() <= query_ans && query_ans <= ans.size() + 2);
      |                                           ~~~~~~~~~~^~~~~~~~~~~~~~~~~
combo.cpp:108:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  108 |         if (query_ans == ans.size() + 1) ans += buttons[x];
      |             ~~~~~~~~~~^~~~~~~~~~~~~~~~~
combo.cpp:109:28: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  109 |         else if (query_ans == ans.size() + 2) ans += buttons[y];
      |                  ~~~~~~~~~~^~~~~~~~~~~~~~~~~
#Verdict Execution timeMemoryGrader output
Fetching results...
#Verdict Execution timeMemoryGrader output
Fetching results...