이 제출은 이전 버전의 oj.uz에서 채점하였습니다. 현재는 제출 당시와는 다른 서버에서 채점을 하기 때문에, 다시 제출하면 결과가 달라질 수도 있습니다.
#include <bits/stdc++.h>
#include "combo.h"
using namespace std;
//#include <ext/pb_ds/assoc_container.hpp>
//#include <ext/pb_ds/tree_policy.hpp>
// using namespace __gnu_pbds;
// typedef tree<int, null_type, less<int>, rb_tree_tag, tree_order_statistics_node_update> ordered_set;
// find_by_order(), order_of_key()
typedef long long ll;
typedef long double dd;
typedef pair<int, int> pii;
typedef pair<ll, ll> pll;
typedef pair<dd, dd> pdd;
typedef vector<int> vii;
typedef vector<ll> vll;
typedef vector<dd> vdd;
typedef vector<pii> vpii;
typedef vector<pll> vpll;
typedef vector<pdd> vpdd;
typedef vector<vii> vvii;
typedef vector<vll> vvll;
typedef vector<vdd> vvdd;
typedef vector<vpii> vvpii;
typedef vector<vpll> vvpll;
typedef vector<vpdd> vvpdd;
typedef vector<bool> vb;
const int inf = 1 << 30;
#define rep(i, n) for (ll i = 0; i < n; i++)
#define ffor(i, a, b) for(ll i = a; i < b; i++)
#define forin(x, a) for (auto &x: a)
#define all(x) x.begin(), x.end()
#ifdef TEST
#define dbg(x) cout << #x << ": " << x << '\n';
#define dbgc(x) cout << #x << ":"; forin(a, x) { cout << " " << a; } cout << endl;
#define tassert(x) assert(x);
#else
#define dbg(x)
#define dbgc(x)
#define tassert(x)
#endif
std::string guess_sequence(int N) {
char first;
string rem;
if (press("AB")) {
if (press("A")) {
first = 'A';
rem = "BXY";
} else {
first = 'B';
rem = "AXY";
}
} else {
if (press("X")) {
first = 'X';
rem = "ABY";
} else {
first = 'Y';
rem = "ABX";
}
}
string res;
res += first;
while (res.size() < N) {
if (res.size() == N - 1) {
if (press(res + rem.at(0))) {
res += rem.at(0);
} else if (press(res + rem.at(1))) {
res += rem.at(1);
} else {
res += rem.at(2);
}
} else {
int l = press(res + rem.at(0) + res + rem.at(1) + rem.at(0) + res + rem.at(1) + rem.at(1) + res + rem.at(1) + rem.at(2));
if (l == res.size()) {
res += rem.at(2);
} else if (l == res.size() + 1) {
res += rem.at(0);
} else {
res += rem.at(1);
}
}
}
return res;
}
컴파일 시 표준 에러 (stderr) 메시지
combo.cpp: In function 'std::string guess_sequence(int)':
combo.cpp:71:21: warning: comparison of integer expressions of different signedness: 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
71 | while (res.size() < N) {
| ~~~~~~~~~~~^~~
combo.cpp:72:19: warning: comparison of integer expressions of different signedness: 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
72 | if (res.size() == N - 1) {
| ~~~~~~~~~~~^~~~~~~~
combo.cpp:82:11: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
82 | if (l == res.size()) {
| ~~^~~~~~~~~~~~~
combo.cpp:84:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
84 | } else if (l == res.size() + 1) {
| ~~^~~~~~~~~~~~~~~~~
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