제출 #576240

#제출 시각아이디문제언어결과실행 시간메모리
576240teki콤보 (IOI18_combo)C++11
컴파일 에러
0 ms0 KiB
#include <bits/stdc++.h> typedef long long ll; #define pb push_back #define MS(x,y) memset((x),(y),sizeof((x))) const ll MN = 1000000007; using namespace std; char seq[] = {'A','B','X','Y'}; int press(string p) { cout<<"? "<<p<<endl; int br; cin>>br; return br; } string guess_sequence(int n) { string curr; int ans1 = press("AB"); if (ans1 > 0) { int ans2 = press("A"); if (ans2 > 0) curr = "A"; else curr = "B"; } else { int ans2 = press("X"); if (ans2 > 0) curr = "X"; else curr = "Y"; } for (int i = 1; i<n-1; i++) { string query; int ctr = 1; char koi[3]; for (int j = 0; j<4; j++) { if (curr[0] == seq[j]) continue; koi[ctr-1] = seq[j]; if (ctr == 1) query += curr+seq[j]; else if (ctr == 2) { string tmp = curr+seq[j]; for (int k = 0; k<4; k++) { if (curr[0] == seq[k]) continue; query += tmp+seq[k]; } } ctr++; } int ans = press(query); if (ans == curr.length()) curr += koi[2]; else if (ans == curr.length()+1) curr += koi[0]; else if (ans == curr.length()+2) curr += koi[1]; } for (int i = 0; i<4; i++) { string query = curr; query += seq[i]; if (press(query) >= n) { curr += seq[i]; break; } } return curr; } int main() { #if LOCAL_DEBUG fstream cin("in.txt"); #endif ios_base::sync_with_stdio(false); cin.tie(0); cout.tie(0); string secret = "ABXYY"; cout<<guess_sequence(secret.length()); return 0; }

컴파일 시 표준 에러 (stderr) 메시지

combo.cpp: In function 'std::string guess_sequence(int)':
combo.cpp:59:17: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   59 |         if (ans == curr.length()) curr += koi[2];
      |             ~~~~^~~~~~~~~~~~~~~~
combo.cpp:60:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   60 |         else if (ans == curr.length()+1) curr += koi[0];
      |                  ~~~~^~~~~~~~~~~~~~~~~~
combo.cpp:61:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   61 |         else if (ans == curr.length()+2) curr += koi[1];
      |                  ~~~~^~~~~~~~~~~~~~~~~~
/usr/bin/ld: /tmp/ccpAgRDp.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/cc1LQpAp.o:combo.cpp:(.text+0xc0): first defined here
/usr/bin/ld: /tmp/ccpAgRDp.o: in function `main':
grader.cpp:(.text.startup+0x0): multiple definition of `main'; /tmp/cc1LQpAp.o:combo.cpp:(.text.startup+0x0): first defined here
collect2: error: ld returned 1 exit status