QOJ.ac

QOJ

ID题目提交者结果用时内存语言文件大小提交时间测评时间
#592952#7738. Equivalent RewritingflsCompile Error//C++143.3kb2024-09-27 10:32:282024-09-27 10:32:29

Judging History

你现在查看的是最新测评结果

  • [2024-09-27 10:32:29]
  • 评测
  • [2024-09-27 10:32:28]
  • 提交

answer

#include <cassert>
#include <cmath>
#include <cstdint>
#include <cstdio>
#include <cstdlib>
#include <cstring>
#include <algorithm>
#include <bitset>
#include <complex>
#include <deque>
#include <functional>
#include <iostream>
#include <limits>
#include <map>
#include <numeric>
#include <queue>
#include <random>
#include <set>
#include <sstream>
#include <string>
#include <unordered_map>
#include <unordered_set>
#include <utility>
#include <vector>
#include <stack>

template <class T, size_t size = std::tuple_size<T>::value> std::string to_debug(T, std::string s = "") requires(not std::ranges::range<T>);
std::string to_debug(auto x) requires requires(std::ostream& os) { os << x; } { return static_cast<std::ostringstream>(std::ostringstream() << x).str(); }
std::string to_debug(std::ranges::range auto x, std::string s = "") requires(not std::is_same_v<decltype(x), std::string>) {
  for (auto xi : x) { s += ", " + to_debug(xi); }
  return "[" + s.substr(s.empty() ? 0 : 2) + "]";
}
template <class T, size_t size> std::string to_debug(T x, std::string s) requires(not std::ranges::range<T>) {
  [&]<size_t... I>(std::index_sequence<I...>) { ((s += ", " + to_debug(get<I>(x))), ...); }(std::make_index_sequence<size>());
  return "(" + s.substr(s.empty() ? 0 : 2) + ")";
}
#ifndef ONLINE_JUDGE
#define debug(...) std::cerr << __LINE__ << ": (" #__VA_ARGS__ ") = " << to_debug(std::tuple(__VA_ARGS__)) << "\n"
#else
#define debug(x...)
#endif

using i64 = long long;

const int mxn = 1e6+6;

int mx[mxn];

int cnt[mxn];

bool del[mxn];

std::vector <int> p1;

std::set <int> p2;

void solve()
{
#define tests
    int n, m;
    std::cin >> n >> m;
    p1.clear();
    p2.clear();
    for(int i = 1 ; i <= m ; i++){
        mx[i] = cnt[i] = 0;
    }
    for(int pi, i = 1 ; i <= n ; i++){
        del[i] = false;
        std::cin >> pi;
        for(int inp, j = 1 ; j <= pi ; j++){
            std::cin >> inp;
            mx[inp] = i;
            cnt[inp]++;
        }
    }
    for(int i = 1 ; i <= m ; i++){
        if(cnt[i] >= 2){
            p2.insert(mx[i]);
            del[mx[i]] = true;
        }
    }
    //debug(p1);
    for(int i = 1 ; i <= n ; i++){
        if(!del[i]){
            p1.push_back(i);
        }
    }
    //debug(p1);
    if(p1.size() >= 2){
        std::swap(p1[0], p1[1]);
        std::cout << "Yes\n";
        std::vector <int> ans;
        for(auto x : p1)
            ans.push_back(x);
        for(auto x : p2)
            ans.push_back(x);
        for(int i = 0 ; i < n - 1 ; i++)
            std::cout << ans[i] << " ";
        std::cout << ans[n - 1] << "\n";
    }else{
        //std::cout << "No\n";
        if(p1.size() == 1 && p1[0] != 1){
             std::cout << "Yes\n";
        std::vector <int> ans;
        for(auto x : p1)
            ans.push_back(x);
        for(auto x : p2)
            ans.push_back(x);
        for(int i = 0 ; i < n - 1 ; i++)
            std::cout << ans[i] << " ";
        std::cout << ans[n - 1] << "\n";
        }else{
            std::cout << "No\n";
        }
    }
}
 
signed main()
{
    std::cin.tie(nullptr)->sync_with_stdio(false);
    int _{1};
#ifdef tests
    std::cin >> _;
#endif
    while(_--) solve();
    return 0;
}

详细

answer.code:27:105: error: ‘requires’ only available with ‘-std=c++20’ or ‘-fconcepts’
   27 | template <class T, size_t size = std::tuple_size<T>::value> std::string to_debug(T, std::string s = "") requires(not std::ranges::range<T>);
      |                                                                                                         ^~~~~~~~
answer.code:27:123: error: ‘std::ranges’ has not been declared
   27 | template <class T, size_t size = std::tuple_size<T>::value> std::string to_debug(T, std::string s = "") requires(not std::ranges::range<T>);
      |                                                                                                                           ^~~~~~
answer.code:27:138: error: expected primary-expression before ‘>’ token
   27 | template <class T, size_t size = std::tuple_size<T>::value> std::string to_debug(T, std::string s = "") requires(not std::ranges::range<T>);
      |                                                                                                                                          ^
answer.code:27:139: error: expected primary-expression before ‘)’ token
   27 | template <class T, size_t size = std::tuple_size<T>::value> std::string to_debug(T, std::string s = "") requires(not std::ranges::range<T>);
      |                                                                                                                                           ^
answer.code:28:22: warning: use of ‘auto’ in parameter declaration only available with ‘-std=c++20’ or ‘-fconcepts’
   28 | std::string to_debug(auto x) requires requires(std::ostream& os) { os << x; } { return static_cast<std::ostringstream>(std::ostringstream() << x).str(); }
      |                      ^~~~
answer.code:28:30: error: ‘requires’ only available with ‘-std=c++20’ or ‘-fconcepts’
   28 | std::string to_debug(auto x) requires requires(std::ostream& os) { os << x; } { return static_cast<std::ostringstream>(std::ostringstream() << x).str(); }
      |                              ^~~~~~~~
answer.code:28:60: error: expected primary-expression before ‘&’ token
   28 | std::string to_debug(auto x) requires requires(std::ostream& os) { os << x; } { return static_cast<std::ostringstream>(std::ostringstream() << x).str(); }
      |                                                            ^
answer.code:28:62: error: ‘os’ was not declared in this scope; did you mean ‘cos’?
   28 | std::string to_debug(auto x) requires requires(std::ostream& os) { os << x; } { return static_cast<std::ostringstream>(std::ostringstream() << x).str(); }
      |                                                              ^~
      |                                                              cos
answer.code:28:39: error: there are no arguments to ‘requires’ that depend on a template parameter, so a declaration of ‘requires’ must be available [-fpermissive]
   28 | std::string to_debug(auto x) requires requires(std::ostream& os) { os << x; } { return static_cast<std::ostringstream>(std::ostringstream() << x).str(); }
      |                                       ^~~~~~~~
answer.code:28:39: note: (if you use ‘-fpermissive’, G++ will accept your code, but allowing the use of an undeclared name is deprecated)
answer.code: In function ‘std::string to_debug(auto:1)’:
answer.code:28:68: error: ‘os’ was not declared in this scope; did you mean ‘cos’?
   28 | std::string to_debug(auto x) requires requires(std::ostream& os) { os << x; } { return static_cast<std::ostringstream>(std::ostringstream() << x).str(); }
      |                                                                    ^~
      |                                                                    cos
answer.code:28:77: warning: no return statement in function returning non-void [-Wreturn-type]
   28 | std::string to_debug(auto x) requires requires(std::ostream& os) { os << x; } { return static_cast<std::ostringstream>(std::ostringstream() << x).str(); }
      |                                                                             ^
answer.code: At global scope:
answer.code:28:79: error: expected unqualified-id before ‘{’ token
   28 | std::string to_debug(auto x) requires requires(std::ostream& os) { os << x; } { return static_cast<std::ostringstream>(std::ostringstream() << x).str(); }
      |                                                                               ^
answer.code:29:27: error: ‘std::string to_debug’ redeclared as different kind of entity
   29 | std::string to_debug(std::ranges::range auto x, std::string s = "") requires(not std::is_same_v<decltype(x), std::string>) {
      |                           ^~~~~~
answer.code:28:13: note: previous declaration ‘template<class auto:1> std::string to_debug(auto:1)’
   28 | std::string to_debug(auto x) requires requires(std::ostream& os) { os << x; } { return static_cast<std::ostringstream>(std::ostringstream() << x).str(); }
      |             ^~~~~~~~
answer.code:29:27: error: ‘st...