답안 #901441

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
901441 2024-01-09T12:32:04 Z warner1129 Skyscraper (JOI16_skyscraper) C++
컴파일 오류
0 ms 0 KB
#include <bits/stdc++.h>
 
using namespace std;

template<ranges::range R>
istream& operator>>(istream &s, R &&v) { for (auto &x : v) s >> x; return s; }
template<ranges::range R>
ostream& operator<<(ostream &s, R &&v) { for (auto &x : v) s << x << ' '; return s; }
 
#ifdef LOCAL
template<class... T> void dbg(T... x) { char e{}; ((cerr << e << x, e = ' '), ...); }
#define debug(x...) dbg(#x, '=', x, '\n')
#else
#define debug(...) ((void)0)
#endif
 
#define all(v) (v).begin(), (v).end()
#define rall(v) (v).rbegin(), (v).rend()
#define ff first
#define ss second
 
using u32 = unsigned int;
using i64 = long long;
using u64 = unsigned long long;
using i128 = __int128;
using u128 = unsigned __int128;
 
template<class T> inline constexpr T inf = numeric_limits<T>::max() / 2;
constexpr int mod = 1e9 + 7, inv2 = (mod + 1) / 2;
 
template<class T> bool chmin(T &a, T b) { return (b < a and (a = b, true)); }
template<class T> bool chmax(T &a, T b) { return (a < b and (a = b, true)); }

void solve() {
    int n, L;
    cin >> n >> L;

    vector<int> A(n);
    cin >> A;

    sort(all(A));

    if (n == 1) {
        cout << 1 << '\n';
        return;
    }

    vector dp(n + 1, vector(3, vector<i64>(L + 1)));
    dp[1][0][0] = 1;
    dp[1][1][0] = 2;
    dp[1][2][0] = 1;

    for (int i = 1; i < n; i++) {
        vector f(n + 1, vector(3, vector<i64>(L + 1)));
        
        for (int j = 1; j <= i; j++)
            for (int k = 0; k <= 2; k++) {
                i64 w = (A[i] - A[i - 1]) * (j * 2 - k);
                
                for (int s = 0; s + w <= L; s++) if (dp[j][k][s]) {
                    i64 way = dp[j][k][s];
                    
                    f[j + 1][k][s + w] += way * (j + 1 - k);
                    f[j][k][s + w] += way * (j * 2 - k);
                    f[j - 1][k][s + w] += way * (j - 1);
                    
                    if (k == 0) {
                        f[j + 1][k + 1][s + w] += way * 2;
                        f[j][k + 1][s + w] += way * 2;
                    }
                    if (k == 1) {
                        f[j + 1][k + 1][s + w] += way;
                        f[j][k + 1][s + w] += way;
                    }
                }
            }
            
        dp.swap(f);
    }

    i64 ans = 0;
    for (int i = 0; i <= L; i++)
        (ans += dp[1][2][i]) %= mod;

    cout << ans << '\n';
}
 
signed main() {
    cin.tie(0)->sync_with_stdio(false);
    cin.exceptions(cin.failbit);
    int T = 1;
    // cin >> T;
    while (T--) {
        solve();
    }
    return 0;
}

Compilation message

skyscraper.cpp:5:10: error: 'ranges' has not been declared
    5 | template<ranges::range R>
      |          ^~~~~~
skyscraper.cpp:5:24: error: expected '>' before 'R'
    5 | template<ranges::range R>
      |                        ^
skyscraper.cpp:6:33: error: 'R' has not been declared
    6 | istream& operator>>(istream &s, R &&v) { for (auto &x : v) s >> x; return s; }
      |                                 ^
skyscraper.cpp: In function 'std::istream& operator>>(std::istream&, int&&)':
skyscraper.cpp:6:57: error: there are no arguments to 'begin' that depend on a template parameter, so a declaration of 'begin' must be available [-fpermissive]
    6 | istream& operator>>(istream &s, R &&v) { for (auto &x : v) s >> x; return s; }
      |                                                         ^
skyscraper.cpp:6:57: note: (if you use '-fpermissive', G++ will accept your code, but allowing the use of an undeclared name is deprecated)
skyscraper.cpp:6:57: error: there are no arguments to 'end' that depend on a template parameter, so a declaration of 'end' must be available [-fpermissive]
skyscraper.cpp: At global scope:
skyscraper.cpp:7:10: error: 'ranges' has not been declared
    7 | template<ranges::range R>
      |          ^~~~~~
skyscraper.cpp:7:24: error: expected '>' before 'R'
    7 | template<ranges::range R>
      |                        ^
skyscraper.cpp:8:33: error: 'R' has not been declared
    8 | ostream& operator<<(ostream &s, R &&v) { for (auto &x : v) s << x << ' '; return s; }
      |                                 ^
skyscraper.cpp: In function 'std::ostream& operator<<(std::ostream&, int&&)':
skyscraper.cpp:8:57: error: there are no arguments to 'begin' that depend on a template parameter, so a declaration of 'begin' must be available [-fpermissive]
    8 | ostream& operator<<(ostream &s, R &&v) { for (auto &x : v) s << x << ' '; return s; }
      |                                                         ^
skyscraper.cpp:8:57: error: there are no arguments to 'end' that depend on a template parameter, so a declaration of 'end' must be available [-fpermissive]
skyscraper.cpp: At global scope:
skyscraper.cpp:28:19: warning: inline variables are only available with '-std=c++17' or '-std=gnu++17'
   28 | template<class T> inline constexpr T inf = numeric_limits<T>::max() / 2;
      |                   ^~~~~~
skyscraper.cpp: In function 'void solve()':
skyscraper.cpp:39:9: error: no match for 'operator>>' (operand types are 'std::istream' {aka 'std::basic_istream<char>'} and 'std::vector<int>')
   39 |     cin >> A;
      |     ~~~ ^~ ~
      |     |      |
      |     |      std::vector<int>
      |     std::istream {aka std::basic_istream<char>}
In file included from /usr/include/c++/10/sstream:38,
                 from /usr/include/c++/10/complex:45,
                 from /usr/include/c++/10/ccomplex:39,
                 from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:54,
                 from skyscraper.cpp:1:
/usr/include/c++/10/istream:120:7: note: candidate: 'std::basic_istream<_CharT, _Traits>::__istream_type& std::basic_istream<_CharT, _Traits>::operator>>(std::basic_istream<_CharT, _Traits>::__istream_type& (*)(std::basic_istream<_CharT, _Traits>::__istream_type&)) [with _CharT = char; _Traits = std::char_traits<char>; std::basic_istream<_CharT, _Traits>::__istream_type = std::basic_istream<char>]'
  120 |       operator>>(__istream_type& (*__pf)(__istream_type&))
      |       ^~~~~~~~
/usr/include/c++/10/istream:120:36: note:   no known conversion for argument 1 from 'std::vector<int>' to 'std::basic_istream<char>::__istream_type& (*)(std::basic_istream<char>::__istream_type&)' {aka 'std::basic_istream<char>& (*)(std::basic_istream<char>&)'}
  120 |       operator>>(__istream_type& (*__pf)(__istream_type&))
      |                  ~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~
/usr/include/c++/10/istream:124:7: note: candidate: 'std::basic_istream<_CharT, _Traits>::__istream_type& std::basic_istream<_CharT, _Traits>::operator>>(std::basic_istream<_CharT, _Traits>::__ios_type& (*)(std::basic_istream<_CharT, _Traits>::__ios_type&)) [with _CharT = char; _Traits = std::char_traits<char>; std::basic_istream<_CharT, _Traits>::__istream_type = std::basic_istream<char>; std::basic_istream<_CharT, _Traits>::__ios_type = std::basic_ios<char>]'
  124 |       operator>>(__ios_type& (*__pf)(__ios_type&))
      |       ^~~~~~~~
/usr/include/c++/10/istream:124:32: note:   no known conversion for argument 1 from 'std::vector<int>' to 'std::basic_istream<char>::__ios_type& (*)(std::basic_istream<char>::__ios_type&)' {aka 'std::basic_ios<char>& (*)(std::basic_ios<char>&)'}
  124 |       operator>>(__ios_type& (*__pf)(__ios_type&))
      |                  ~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~
/usr/include/c++/10/istream:131:7: note: candidate: 'std::basic_istream<_CharT, _Traits>::__istream_type& std::basic_istream<_CharT, _Traits>::operator>>(std::ios_base& (*)(std::ios_base&)) [with _CharT = char; _Traits = std::char_traits<char>; std::basic_istream<_CharT, _Traits>::__istream_type = std::basic_istream<char>]'
  131 |       operator>>(ios_base& (*__pf)(ios_base&))
      |       ^~~~~~~~
/usr/include/c++/10/istream:131:30: note:   no known conversion for argument 1 from 'std::vector<int>' to 'std::ios_base& (*)(std::ios_base&)'
  131 |       operator>>(ios_base& (*__pf)(ios_base&))
      |                  ~~~~~~~~~~~~^~~~~~~~~~~~~~~~
/usr/include/c++/10/istream:168:7: note: candidate: 'std::basic_istream<_CharT, _Traits>::__istream_type& std::basic_istream<_CharT, _Traits>::operator>>(bool&) [with _CharT = char; _Traits = std::char_traits<char>; std::basic_istream<_CharT, _Traits>::__istream_type = std::basic_istream<char>]'
  168 |       operator>>(bool& __n)
      |       ^~~~~~~~
/usr/include/c++/10/istream:168:24: note:   no known conversion for argument 1 from 'std::vector<int>' to 'bool&'
  168 |       operator>>(bool& __n)
      |                  ~~~~~~^~~
/usr/include/c++/10/istream:172:7: note: candidate: 'std::basic_istream<_CharT, _Traits>& std::basic_istream<_CharT, _Traits>::operator>>(short int&) [with _CharT = char; _Traits = std::char_traits<char>]'
  172 |       operator>>(short& __n);
      |       ^~~~~~~~
/usr/include/c++/10/istream:172:25: note:   no known conversion for argument 1 from 'std::vector<int>' to 'short int&'
  172 |       operator>>(short& __n);
      |                  ~~~~~~~^~~
/usr/include/c++/10/istream:175:7: note: candidate: 'std::basic_istream<_CharT, _Traits>::__istream_type& std::basic_istream<_CharT, _Traits>::operator>>(short unsigned int&) [with _CharT = char; _Traits = std::char_traits<char>; std::basic_istream<_CharT, _Traits>::__istream_type = std::basic_istream<char>]'
  175 |       operator>>(unsigned short& __n)
      |       ^~~~~~~~
/usr/include/c++/10/istream:175:34: note:   no known conversion for argument 1 from 'std::vector<int>' to 'short unsigned int&'
  175 |       operator>>(unsigned short& __n)
      |                  ~~~~~~~~~~~~~~~~^~~
/usr/include/c++/10/istream:179:7: note: candidate: 'std::basic_istream<_CharT, _Traits>& std::basic_istream<_CharT, _Traits>::operator>>(int&) [with _CharT = char; _Traits = std::char_traits<char>]'
  179 |       operator>>(int& __n);
      |       ^~~~~~~~
/usr/include/c++/10/istream:179:23: note:   no known conversion for argument 1 from 'std::vector<int>' to 'int&'
  179 |       operator>>(int& __n);
      |                  ~~~~~^~~
/usr/include/c++/10/istream:182:7: note: candidate: 'std::basic_istream<_CharT, _Traits>::__istream_type& std::basic_istream<_CharT, _Traits>::operator>>(unsigned int&) [with _CharT = char; _Traits = std::char_traits<char>; std::basic_istream<_CharT, _Traits>::__istream_type = std::basic_istream<char>]'
  182 |       operator>>(unsigned int& __n)
      |       ^~~~~~~~
/usr/include/c++/10/istream:182:32: note:   no known conversion for argument 1 from 'std::vector<int>' to 'unsigned int&'
  182 |       operator>>(unsigned int& __n)
      |                  ~~~~~~~~~~~~~~^~~
/usr/include/c++/10/istream:186:7: note: candidate: 'std::basic_istream<_CharT, _Traits>::__istream_type& std::basic_istream<_CharT, _Traits>::operator>>(long int&) [with _CharT = char; _Traits = std::char_traits<char>; std::basic_istream<_CharT, _Traits>::__istream_type = std::basic_istream<char>]'
  186 |       operator>>(long& __n)
      |       ^~~~~~~~
/usr/include/c++/10/istream:186:24: note:   no known conversion for argument 1 from 'std::vector<int>' to 'long int&'
  186 |       operator>>(long& __n)
      |                  ~~~~~~^~~
/usr/include/c++/10/istream:190:7: note: candidate: 'std::basic_istream<_CharT, _Traits>::__istream_type& std::basic_istream<_CharT, _Traits>::operator>>(long unsigned int&) [with _CharT = char; _Traits = std::char_traits<char>; std::basic_istream<_CharT, _Traits>::__istream_type = std::basic_istream<char>]'
  190 |       operator>>(unsigned long& __n)
      |       ^~~~~~~~
/usr/include/c++/10/istream:190:33: note:   no known conversion for argument 1 from 'std::vector<int>' to 'long unsigned int&'
  190 |       operator>>(unsigned long& __n)
      |                  ~~~~~~~~~~~~~~~^~~
/usr/include/c++/10/istream:195:7: note: candidate: 'std::basic_istream<_CharT, _Traits>::__istream_type& std::basic_istream<_CharT, _Traits>::operator>>(long long int&) [with _CharT = char; _Traits = std::char_traits<char>; std::basic_istream<_CharT, _Traits>::__istream_type = std::basic_istream<char>]'
  195 |       operator>>(long long& __n)
      |       ^~~~~~~~
/usr/include/c++/10/istream:195:29: note:   no known conversion for argument 1 from 'std::vector<int>' to 'long long int&'
  195 |       operator>>(long long& __n)
      |                  ~~~~~~~~~~~^~~
/usr/include/c++/10/istream:199:7: note: candidate: 'std::basic_istream<_CharT, _Traits>::__istream_type& std::basic_istream<_CharT, _Traits>::operator>>(long long unsigned int&) [with _CharT = char; _Traits = std::char_traits<char>; std::basic_istream<_CharT, _Traits>::__istream_type = std::basic_istream<char>]'
  199 |       operator>>(unsigned long long& __n)
      |       ^~~~~~~~
/usr/include/c++/10/istream:199:38: note:   no known conversion for argument 1 from 'std::vector<int>' to 'long long unsigned int&'
  199 |       operator>>(unsigned long long& __n)
      |                  ~~~~~~~~~~~~~~~~~~~~^~~
/usr/include/c++/10/istream:214:7: note: candidate: 'std::basic_istream<_CharT, _Traits>::__istream_type& std::basic_istream<_CharT, _Traits>::operator>>(float&) [with _CharT = char; _Traits = std::char_traits<char>; std::basic_istream<_CharT, _Traits>::__istream_type = std::basic_istream<char>]'
  214 |       operator>>(float& __f)
      |       ^~~~~~~~
/usr/include/c++/10/istream:214:25: note:   no known conversion for argument 1 from 'std::vector<int>' to 'float&'
  214 |       operator>>(float& __f)
      |                  ~~~~~~~^~~
/usr/include/c++/10/istream:218:7: note: candidate: 'std::basic_istream<_CharT, _Traits>::__istream_type& std::basic_istream<_CharT, _Traits>::operator>>(double&) [with _CharT = char; _Traits = std::char_traits<char>; std::basic_istream<_CharT, _Traits>::__istream_type = std::basic_istream<char>]'
  218 |       operator>>(double& __f)
      |       ^~~~~~~~
/usr/include/c++/10/istream:218:26: note:   no known conversion for argument 1 from 'std::vector<int>' to 'double&'
  218 |       operator>>(double& __f)
      |                  ~~~~~~~~^~~
/usr/include/c++/10/istream:222:7: note: candidate: 'std::basic_istream<_CharT, _Traits>::__istream_type& std::basic_istream<_CharT, _Traits>::operator>>(long double&) [with _CharT = char; _Traits = std::char_traits<char>; std::basic_istream<_CharT, _Traits>::__istream_type = std::basic_istream<char>]'
  222 |       operator>>(long double& __f)
      |       ^~~~~~~~
/usr/include/c++/10/istream:222:31: note:   no known conversion for argument 1 from 'std::vector<int>' to 'long double&'
  222 |       operator>>(long double& __f)
      |                  ~~~~~~~~~~~~~^~~
/usr/include/c++/10/istream:235:7: note: candidate: 'std::basic_istream<_CharT, _Traits>::__istream_type& std::basic_istream<_CharT, _Traits>::operator>>(void*&) [with _CharT = char; _Traits = std::char_traits<char>; std::basic_istream<_CharT, _Traits>::__istream_type = std::basic_istream<char>]'
  235 |       operator>>(void*& __p)
      |       ^~~~~~~~
/usr/include/c++/10/istream:235:25: note:   no known conversion for argument 1 from 'std::vector<int>' to 'void*&'
  235 |       operator>>(void*& __p)
      |                  ~~~~~~~^~~
/usr/include/c++/10/istream:259:7: note: candidate: 'std::basic_istream<_CharT, _Traits>& std::basic_istream<_CharT, _Traits>::operator>>(std::basic_istream<_CharT, _Traits>::__streambuf_type*) [with _CharT = char; _Traits = std::char_traits<char>; std::basic_istream<_CharT, _Traits>::__streambuf_type = std::basic_streambuf<char>]'
  259 |       operator>>(__streambuf_type* __sb);
      |       ^~~~~~~~
/usr/include/c++/10/istream:259:36: note:   no known conversion for argument 1 from 'std::vector<int>' to 'std::basic_istream<char>::__streambuf_type*' {aka 'std::basic_streambuf<char>*'}
  259 |       operator>>(__streambuf_type* __sb);
      |                  ~~~~~~~~~~~~~~~~~~^~~~
skyscraper.cpp:6:10: note: candidate: 'template<<declaration error> > std::istream& operator>>(std::istream&, int&&)'
    6 | istream& operator>>(istream &s, R &&v) { for (auto &x : v) s >> x; return s; }
      |          ^~~~~~~~
skyscraper.cpp:6:10: note:   template argument deduction/substitution failed:
In file included from /usr/include/c++/10/string:56,
                 from /usr/include/c++/10/bits/locale_classes.h:40,
                 from /usr/include/c++/10/bits/ios_base.h:41,
                 from /usr/include/c++/10/ios:42,
                 from /usr/include/c++/10/istream:38,
                 from /usr/include/c++/10/sstream:38,
                 from /usr/include/c++/10/complex:45,
                 from /usr/include/c++/10/ccomplex:39,
                 from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:54,
                 from skyscraper.cpp:1:
/usr/include/c++/10/bits/basic_string.tcc:1476:5: note: candidate: 'template<class _CharT, class _Traits, class _Alloc> std::basic_istream<_CharT, _Traits>& std::operator>>(std::basic_istream<_CharT, _Traits>&, std::__cxx11::basic_string<_CharT, _Traits, _Alloc>&)'
 1476 |     operator>>(basic_istream<_CharT, _Traits>& __in,
      |     ^~~~~~~~
/usr/include/c++/10/bits/basic_string.tcc:1476:5: note:   template argument deduction/substitution failed:
skyscraper.cpp:39:12: note:   'std::vector<int>' is not derived from 'std::__cxx11::basic_string<_CharT, _Traits, _Alloc>'
   39 |     cin >> A;
      |            ^
In file included from /usr/include/c++/10/istream:991,
                 from /usr/include/c++/10/sstream:38,
                 from /usr/include/c++/10/complex:45,
                 from /usr/include/c++/10/ccomplex:39,
                 from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:54,
                 from skyscraper.cpp:1:
/usr/include/c++/10/bits/istream.tcc:931:5: note: candidate: 'template<class _CharT, class _Traits> std::basic_istream<_CharT, _Traits>& std::operator>>(std::basic_istream<_CharT, _Traits>&, _CharT&)'
  931 |     operator>>(basic_istream<_CharT, _Traits>& __in, _CharT& __c)
      |     ^~~~~~~~
/usr/include/c++/10/bits/istream.tcc:931:5: note:   template argument deduction/substitution failed:
skyscraper.cpp:39:12: note:   deduced conflicting types for parameter '_CharT' ('char' and 'std::vector<int>')
   39 |     cin >> A;
      |            ^
In file included from /usr/include/c++/10/sstream:38,
                 from /usr/include/c++/10/complex:45,
                 from /usr/include/c++/10/ccomplex:39,
                 from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:54,
                 from skyscraper.cpp:1:
/usr/include/c++/10/istream:756:5: note: candidate: 'template<class _Traits> std::basic_istream<char, _Traits>& std::operator>>(std::basic_istream<char, _Traits>&, unsigned char&)'
  756 |     operator>>(basic_istream<char, _Traits>& __in, unsigned char& __c)
      |     ^~~~~~~~
/usr/include/c++/10/istream:756:5: note:   template argument deduction/substitution failed:
skyscraper.cpp:39:12: note:   cannot convert 'A' (type 'std::vector<int>') to type 'unsigned char&'
   39 |     cin >> A;
      |            ^
In file included from /usr/include/c++/10/sstream:38,
                 from /usr/include/c++/10/complex:45,
                 from /usr/include/c++/10/ccomplex:39,
                 from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:54,
                 from skyscraper.cpp:1:
/usr/include/c++/10/istream:761:5: note: candidate: 'template<class _Traits> std::basic_istream<char, _Traits>& std::operator>>(std::basic_istream<char, _Traits>&, signed char&)'
  761 |     operator>>(basic_istream<char, _Traits>& __in, signed char& __c)
      |     ^~~~~~~~
/usr/include/c++/10/istream:761:5: note:   template argument deduction/substitution failed:
skyscraper.cpp:39:12: note:   cannot convert 'A' (type 'std::vector<int>') to type 'signed char&'
   39 |     cin >> A;
      |            ^
In file included from /usr/include/c++/10/istream:991,
                 from /usr/include/c++/10/sstream:38,
                 from /usr/include/c++/10/complex:45,
                 from /usr/include/c++/10/ccomplex:39,
                 from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:54,
                 from skyscraper.cpp:1:
/usr/include/c++/10/bits/istream.tcc:963:5: note: candidate: 'template<class _CharT2, class _Traits2> std::basic_istream<_CharT, _Traits>& std::operator>>(std::basic_istream<_CharT, _Traits>&, _CharT2*)'
  963 |     operator>>(basic_istream<_CharT, _Traits>& __in, _CharT* __s)
      |     ^~~~~~~~
/usr/include/c++/10/bits/istream.tcc:963:5: note:   template argument deduction/substitution failed:
skyscraper.cpp:39:12: note:   mismatched types '_CharT2*' and 'std::vector<int>'
   39 |     cin >> A;
      |            ^
In file included from /usr/include/c++/10/sstream:38,
                 from /usr/include/c++/10/complex:45,
                 from /usr/include/c++/10/ccomplex:39,
                 from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:54,
                 from skyscraper.cpp:1:
/usr/include/c++/10/istream:803:5: note: candidate: 'template<class _Traits> std::basic_istream<char, _Traits>& std::operator>>(std::basic_istream<char, _Traits>&, unsigned char*)'
  803 |     operator>>(basic_istream<char, _Traits>& __in, unsigned char* __s)
      |     ^~~~~~~~
/usr/include/c++/10/istream:803:5: note:   template argument deduction/substitution failed:
skyscraper.cpp:39:12: note:   cannot convert 'A' (type 'std::vector<int>') to type 'unsigned char*'
   39 |     cin >> A;
      |            ^
In file included from /usr/include/c++/10/sstream:38,
                 from /usr/include/c++/10/complex:45,
                 from /usr/include/c++/10/ccomplex:39,
                 from /usr/include/x