Submission #376072

#	Time	Username	Problem	Language	Result	Execution time	Memory
376072		ijxjdjd	Nice sequence (IZhO18_sequence)	C++14	Compilation error	0 ms	0 KiB

sequence

#include <bits/stdc++.h>
#define FR(i, N) for (int i = 0; i < int(N); i++)
#define all(x) begin(x), end(x)

using namespace std;

using ll = long long;

void random() {
    return rand()%10000 + 1;
}
int main() {
	cin.tie(0);
	cin.sync_with_stdio(0);
	int T;
	cin >> T;
	FR(iter, T) {
        int N, M;
        cin >> N >> M;
        bool swapped = false;
        if (max(N,M)%min(N,M) == 0) {
            if (N >= M) {
                cout << N-1 << '\n';
                for (int i = 0; i < N-1; i++) {
                    cout << 1 << " ";
                }
                cout << '\n';
            }
            else {
                cout << M-1 << '\n';
                for (int i = 0; i < M-1; i++) {
                    cout << -1 << " ";
                }
                cout << '\n';
            }
        }
        else {
            if (N < M) {
                swap(N, M);
                swapped = true;
            }
            int d = N%M;
            int mx = N;
            while (d != 0) {
                mx = max(mx, d+N);
                d += N%M;
                if (d >= M) {
                    d -= M;
                }
                if (d == 0) {
                    break;
                }
            }
            vector<int> cntIn(mx, 0);
            vector<int> pref(mx, 0);
            for (int i = 0; i < mx; i++) {
                if (i+N < mx) {
                    cntIn[i+N]++;
                }
                if (i-M >= 0) {
                   cntIn[i-M]++;
                }
            }
            deque<int> deq;
            for (int i = 0; i < mx; i++) {
                if (cntIn[i] == 0) {
                   deq.push_back(i);
                   pref[i] = random();
                }
            }
            while (deq.size()) {
                int i = deq.front();
                deq.pop_front();
                if (i+N<mx) {
                    cntIn[i+N]--;
                    pref[i+N] = max(pref[i+N], pref[i]+random());
                    if (cntIn[i+N] == 0) {
                        deq.push_back(i+N);
                    }
                }
                if (i-M>=0) {
                    cntIn[i-M]--;
                    pref[i-M] = max(pref[i-M], pref[i]+random());
                    if (cntIn[i-M] == 0) {
                        deq.push_back(i-M);
                    }
                }
            }
            for (int i = mx-1; i >=0; i--) {
                pref[i] -= pref[0];
            }
            if (!swapped) {
                for (int i = 1; i < mx; i++) {
                    pref[i] *= -1;
                }
            }
            cout << mx - 1 << '\n';
            for (int i = 1; i < mx; i++) {
                cout << pref[i] - pref[i-1] << " ";
            }
            cout << '\n';
        }
	}
	return 0;
}

Compilation message (stderr)

sequence.cpp:9:6: error: ambiguating new declaration of 'void random()'
    9 | void random() {
      |      ^~~~~~
In file included from /usr/include/c++/9/bits/std_abs.h:38,
                 from /usr/include/c++/9/cmath:47,
                 from /usr/include/x86_64-linux-gnu/c++/9/bits/stdc++.h:41,
                 from sequence.cpp:1:
/usr/include/stdlib.h:401:17: note: old declaration 'long int random()'
  401 | extern long int random (void) __THROW;
      |                 ^~~~~~
sequence.cpp: In function 'void random()':
sequence.cpp:10:27: error: return-statement with a value, in function returning 'void' [-fpermissive]
   10 |     return rand()%10000 + 1;
      |                           ^
sequence.cpp: In function 'int main()':
sequence.cpp:76:64: error: no matching function for call to 'max(__gnu_cxx::__alloc_traits<std::allocator<int>, int>::value_type&, long int)'
   76 |                     pref[i+N] = max(pref[i+N], pref[i]+random());
      |                                                                ^
In file included from /usr/include/c++/9/bits/char_traits.h:39,
                 from /usr/include/c++/9/ios:40,
                 from /usr/include/c++/9/istream:38,
                 from /usr/include/c++/9/sstream:38,
                 from /usr/include/c++/9/complex:45,
                 from /usr/include/c++/9/ccomplex:39,
                 from /usr/include/x86_64-linux-gnu/c++/9/bits/stdc++.h:54,
                 from sequence.cpp:1:
/usr/include/c++/9/bits/stl_algobase.h:222:5: note: candidate: 'template<class _Tp> constexpr const _Tp& std::max(const _Tp&, const _Tp&)'
  222 |     max(const _Tp& __a, const _Tp& __b)
      |     ^~~
/usr/include/c++/9/bits/stl_algobase.h:222:5: note:   template argument deduction/substitution failed:
sequence.cpp:76:64: note:   deduced conflicting types for parameter 'const _Tp' ('int' and 'long int')
   76 |                     pref[i+N] = max(pref[i+N], pref[i]+random());
      |                                                                ^
In file included from /usr/include/c++/9/bits/char_traits.h:39,
                 from /usr/include/c++/9/ios:40,
                 from /usr/include/c++/9/istream:38,
                 from /usr/include/c++/9/sstream:38,
                 from /usr/include/c++/9/complex:45,
                 from /usr/include/c++/9/ccomplex:39,
                 from /usr/include/x86_64-linux-gnu/c++/9/bits/stdc++.h:54,
                 from sequence.cpp:1:
/usr/include/c++/9/bits/stl_algobase.h:268:5: note: candidate: 'template<class _Tp, class _Compare> constexpr const _Tp& std::max(const _Tp&, const _Tp&, _Compare)'
  268 |     max(const _Tp& __a, const _Tp& __b, _Compare __comp)
      |     ^~~
/usr/include/c++/9/bits/stl_algobase.h:268:5: note:   template argument deduction/substitution failed:
sequence.cpp:76:64: note:   deduced conflicting types for parameter 'const _Tp' ('int' and 'long int')
   76 |                     pref[i+N] = max(pref[i+N], pref[i]+random());
      |                                                                ^
In file included from /usr/include/c++/9/algorithm:62,
                 from /usr/include/x86_64-linux-gnu/c++/9/bits/stdc++.h:65,
                 from sequence.cpp:1:
/usr/include/c++/9/bits/stl_algo.h:3456:5: note: candidate: 'template<class _Tp> constexpr _Tp std::max(std::initializer_list<_Tp>)'
 3456 |     max(initializer_list<_Tp> __l)
      |     ^~~
/usr/include/c++/9/bits/stl_algo.h:3456:5: note:   template argument deduction/substitution failed:
sequence.cpp:76:64: note:   mismatched types 'std::initializer_list<_Tp>' and 'int'
   76 |                     pref[i+N] = max(pref[i+N], pref[i]+random());
      |                                                                ^
In file included from /usr/include/c++/9/algorithm:62,
                 from /usr/include/x86_64-linux-gnu/c++/9/bits/stdc++.h:65,
                 from sequence.cpp:1:
/usr/include/c++/9/bits/stl_algo.h:3462:5: note: candidate: 'template<class _Tp, class _Compare> constexpr _Tp std::max(std::initializer_list<_Tp>, _Compare)'
 3462 |     max(initializer_list<_Tp> __l, _Compare __comp)
      |     ^~~
/usr/include/c++/9/bits/stl_algo.h:3462:5: note:   template argument deduction/substitution failed:
sequence.cpp:76:64: note:   mismatched types 'std::initializer_list<_Tp>' and 'int'
   76 |                     pref[i+N] = max(pref[i+N], pref[i]+random());
      |                                                                ^
sequence.cpp:83:64: error: no matching function for call to 'max(__gnu_cxx::__alloc_traits<std::allocator<int>, int>::value_type&, long int)'
   83 |                     pref[i-M] = max(pref[i-M], pref[i]+random());
      |                                                                ^
In file included from /usr/include/c++/9/bits/char_traits.h:39,
                 from /usr/include/c++/9/ios:40,
                 from /usr/include/c++/9/istream:38,
                 from /usr/include/c++/9/sstream:38,
                 from /usr/include/c++/9/complex:45,
                 from /usr/include/c++/9/ccomplex:39,
                 from /usr/include/x86_64-linux-gnu/c++/9/bits/stdc++.h:54,
                 from sequence.cpp:1:
/usr/include/c++/9/bits/stl_algobase.h:222:5: note: candidate: 'template<class _Tp> constexpr const _Tp& std::max(const _Tp&, const _Tp&)'
  222 |     max(const _Tp& __a, const _Tp& __b)
      |     ^~~
/usr/include/c++/9/bits/stl_algobase.h:222:5: note:   template argument deduction/substitution failed:
sequence.cpp:83:64: note:   deduced conflicting types for parameter 'const _Tp' ('int' and 'long int')
   83 |                     pref[i-M] = max(pref[i-M], pref[i]+random());
      |                                                                ^
In file included from /usr/include/c++/9/bits/char_traits.h:39,
                 from /usr/include/c++/9/ios:40,
                 from /usr/include/c++/9/istream:38,
                 from /usr/include/c++/9/sstream:38,
                 from /usr/include/c++/9/complex:45,
                 from /usr/include/c++/9/ccomplex:39,
                 from /usr/include/x86_64-linux-gnu/c++/9/bits/stdc++.h:54,
                 from sequence.cpp:1:
/usr/include/c++/9/bits/stl_algobase.h:268:5: note: candidate: 'template<class _Tp, class _Compare> constexpr const _Tp& std::max(const _Tp&, const _Tp&, _Compare)'
  268 |     max(const _Tp& __a, const _Tp& __b, _Compare __comp)
      |     ^~~
/usr/include/c++/9/bits/stl_algobase.h:268:5: note:   template argument deduction/substitution failed:
sequence.cpp:83:64: note:   deduced conflicting types for parameter 'const _Tp' ('int' and 'long int')
   83 |                     pref[i-M] = max(pref[i-M], pref[i]+random());
      |                                                                ^
In file included from /usr/include/c++/9/algorithm:62,
                 from /usr/include/x86_64-linux-gnu/c++/9/bits/stdc++.h:65,
                 from sequence.cpp:1:
/usr/include/c++/9/bits/stl_algo.h:3456:5: note: candidate: 'template<class _Tp> constexpr _Tp std::max(std::initializer_list<_Tp>)'
 3456 |     max(initializer_list<_Tp> __l)
      |     ^~~
/usr/include/c++/9/bits/stl_algo.h:3456:5: note:   template argument deduction/substitution failed:
sequence.cpp:83:64: note:   mismatched types 'std::initializer_list<_Tp>' and 'int'
   83 |                     pref[i-M] = max(pref[i-M], pref[i]+random());
      |                                                                ^
In file included from /usr/include/c++/9/algorithm:62,
                 from /usr/include/x86_64-linux-gnu/c++/9/bits/stdc++.h:65,
                 from sequence.cpp:1:
/usr/include/c++/9/bits/stl_algo.h:3462:5: note: candidate: 'template<class _Tp, class _Compare> constexpr _Tp std::max(std::initializer_list<_Tp>, _Compare)'
 3462 |     max(initializer_list<_Tp> __l, _Compare __comp)
      |     ^~~
/usr/include/c++/9/bits/stl_algo.h:3462:5: note:   template argument deduction/substitution failed:
sequence.cpp:83:64: note:   mismatched types 'std::initializer_list<_Tp>' and 'int'
   83 |                     pref[i-M] = max(pref[i-M], pref[i]+random());
      |                                                                ^