제출 #349109

#제출 시각아이디문제언어결과실행 시간메모리
349109spike1236콤보 (IOI18_combo)C++14
컴파일 에러
0 ms0 KiB
#include <bits/stdc++.h> ///#include "combo.h" using namespace std; #define pb push_back #define mp make_pair #define f first #define s second #define ll long long #define ld long double #define all(_v) _v.begin(), _v.end() #define sz(_v) (int)_v.size() #define pii pair <int, int> #define pll pair <ll, ll> #define veci vector <int> #define vecll vector <ll> const int dx[4] = {1, -1, 0, 0}; const int dy[4] = {0, 0, -1, 1}; const double PI = 3.1415926535897932384626433832795; const double eps = 1e-9; const int MOD1 = 1e9 + 7; const int MOD2 = 998244353; string ANS; int N; int cnt; int press(string s) { ++cnt; string cur = s; int ans = 0; for(int len = sz(s); len > 0; --len) { for(int j = 0; j + len - 1 < N; ++j) { string t = ""; for(int l = j; l <= j + len - 1; ++l) t += ANS[l]; if(t == cur) return len; } cur.pop_back(); } return 0; } bool check(char x) { string s = ""; s += x; int cnt = press(s); if(cnt > 1 || !cnt) return 0; return 1; } string guess_sequence(int n) { string cur = ""; set <char> st; st.insert('A'); st.insert('B'); st.insert('X'); st.insert('Y'); if(check('A')) cur = "A", st.erase('A'); else if(check('B')) cur = "B", st.erase('B'); else if(check('X')) cur = "X", st.erase('X'); else cur = "Y", st.erase('Y'); auto it = st.begin(); char a1 = *it; ++it; char a2 = *it; ++it; char a3 = *it; for(int i = 1; i < n; ++i) { if(press(cur + a1) == i) { if(press(cur + a2) == i) { cur += a3; continue; } cur += a2; continue; } cur += a1; } return cur; } int main() { ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0); ANS = "ABXYYYYXX"; N = sz(ANS); string answer = guess_sequence(N); if(ANS != answer) cout << "OH NO!\n" << ANS << ' ' << answer; else cout << "OK queries=" << cnt << ' ' << answer; return 0; }

컴파일 시 표준 에러 (stderr) 메시지

combo.cpp: In function 'int press(std::string)':
combo.cpp:31:9: warning: unused variable 'ans' [-Wunused-variable]
   31 |     int ans = 0;
      |         ^~~
/usr/bin/ld: /tmp/ccFcKPPT.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/cc1HxJeU.o:combo.cpp:(.text+0x4a0): first defined here
/usr/bin/ld: /tmp/ccFcKPPT.o: in function `main':
grader.cpp:(.text.startup+0x0): multiple definition of `main'; /tmp/cc1HxJeU.o:combo.cpp:(.text.startup+0x0): first defined here
collect2: error: ld returned 1 exit status