제출 #504174

#제출 시각아이디문제언어결과실행 시간메모리
504174maximumSHOTAliens (IOI16_aliens)C++17
컴파일 에러
0 ms0 KiB
#include <bits/stdc++.h> using namespace std; using ll = long long; using ui = unsigned int; using ull = unsigned long long; using ld = long double; using pii = pair<int, int>; using pll = pair<long long, long long>; const int inf = 1e9; const ll inf64 = 1e18; struct output { ll res; void print() { cout << res << "\n"; } bool operator == (const output& o) const { return res == o.res; } }; struct input { int n, m, k; vector<pii> a; input() = default; void read() { cin >> n >> m >> k; a.resize(n); for (auto& [x, y] : a) cin >> x >> y; } void print() { cout << n << " " << m << " " << k << "\n"; for (auto [x, y] : a) cout << x << " " << y << "\n"; } void gen() { static mt19937 rnd(42); const int MAXN = 5; n = rnd() % MAXN + 1; m = rnd() % MAXN + 1; k = rnd() % n + 1; a.resize(n); for (auto& [x, y] : a) { x = rnd() % m; y = rnd() % m; } } void gen_max_test() { } void prepare() { for (auto& [x, y] : a) { if (y > x) swap(x, y); } vector<pii> st; for (int i = 0; i < n; i++) { if (i > 0 && a[i].first == a[i - 1].first) continue; while (!st.empty() && st.back().second >= a[i].second) st.pop_back(); st.push_back(a[i]); } a = st; n = (int) a.size(); } ll f(int len) { return 1ll * len * len; } output fast() { prepare(); vector<ll> rem(n); for (int j = 0; j < n; j++) rem[j] = f(max(0, (j > 0 ? a[j - 1].first : -1) - a[j].second + 1)); vector<vector<ll>> dp(n, vector<ll>(k + 1, inf64)); for (int i = 0; i < n; i++) { for (int j = i; j >= 0; j--) { ll cost = f(a[i].first - a[j].second + 1) - rem[j]; for (int c = 1; c <= k; c++) dp[i][c] = min(dp[i][c], (j > 0 ? dp[j - 1][c - 1] : 0) + cost); } } ll res = inf64; for (int c = 1; c <= k; c++) res = min(res, dp[n - 1][c]); return output{res}; } output slow() { #ifndef DEBUG throw; #endif prepare(); vector<vector<ll>> dp(n, vector<ll>(k + 1, inf64)); for (int i = 0; i < n; i++) { for (int j = i; j >= 0; j--) { ll cost = f(a[i].first - a[j].second + 1) - f(max(0, (j > 0 ? a[j - 1].first : -1) - a[j].second + 1)); for (int c = 1; c <= k; c++) dp[i][c] = min(dp[i][c], (j > 0 ? dp[j - 1][c - 1] : 0) + cost); } } ll res = inf64; for (int c = 1; c <= k; c++) res = min(res, dp[n - 1][c]); return output{res}; } }; void test_case() { input in; in.read(); output res = in.fast(); res.print(); } void work() { int t = 1; while (t--) test_case(); } void test() { for (int t = 1;;t++) { input in; in.gen(); input in_fs = in; input in_sl = in; output fs = in_fs.fast(); output sl = in_sl.slow(); if (fs == sl) { cout << "OK" << endl; fs.print(); cout << "\n=========" << endl; } else { cout << "WA " << t << "\n"; cout << "exp\n"; sl.print(); cout << "\n=========\n"; cout << "fnd\n"; fs.print(); cout << "\n=========\n"; in.print(); break; } } } void max_test() { input in; in.gen_max_test(); input in_fs = in; output fs = in_fs.fast(); fs.print(); } #ifdef DEBUG int main() { #ifdef DEBUG freopen("input.txt", "r", stdin); #endif ios_base::sync_with_stdio(0); cin.tie(0); work(); // test(); // max_test(); return 0; } #else ll take_photos(int n, int m, int k, int[] r, int[] c) { input in; in.n = n; in.m = m; in.k = k; in.a.resize(n); for (int i = 0; i < n; i++) in.a[i] = {r[i], c[i]}; output fs = in.fast(); return fs.res; } #endif

컴파일 시 표준 에러 (stderr) 메시지

aliens.cpp:191:43: error: expected ',' or '...' before 'r'
  191 | ll take_photos(int n, int m, int k, int[] r, int[] c) {
      |                                           ^
aliens.cpp: In function 'll take_photos(int, int, int, int*)':
aliens.cpp:198:20: error: 'r' was not declared in this scope
  198 |         in.a[i] = {r[i], c[i]};
      |                    ^
aliens.cpp:198:26: error: 'c' was not declared in this scope
  198 |         in.a[i] = {r[i], c[i]};
      |                          ^
aliens.cpp:198:30: error: no match for 'operator=' (operand types are '__gnu_cxx::__alloc_traits<std::allocator<std::pair<int, int> >, std::pair<int, int> >::value_type' {aka 'std::pair<int, int>'} and '<brace-enclosed initializer list>')
  198 |         in.a[i] = {r[i], c[i]};
      |                              ^
In file included from /usr/include/c++/10/bits/stl_algobase.h:64,
                 from /usr/include/c++/10/bits/specfun.h:45,
                 from /usr/include/c++/10/cmath:1927,
                 from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:41,
                 from aliens.cpp:1:
/usr/include/c++/10/bits/stl_pair.h:390:7: note: candidate: 'std::pair<_T1, _T2>& std::pair<_T1, _T2>::operator=(typename std::conditional<std::__and_<std::is_copy_assignable<_T1>, std::is_copy_assignable<_T2> >::value, const std::pair<_T1, _T2>&, const std::__nonesuch&>::type) [with _T1 = int; _T2 = int; typename std::conditional<std::__and_<std::is_copy_assignable<_T1>, std::is_copy_assignable<_T2> >::value, const std::pair<_T1, _T2>&, const std::__nonesuch&>::type = const std::pair<int, int>&]'
  390 |       operator=(typename conditional<
      |       ^~~~~~~~
/usr/include/c++/10/bits/stl_pair.h:393:41: note:   no known conversion for argument 1 from '<brace-enclosed initializer list>' to 'std::conditional<true, const std::pair<int, int>&, const std::__nonesuch&>::type' {aka 'const std::pair<int, int>&'}
  390 |       operator=(typename conditional<
      |                 ~~~~~~~~~~~~~~~~~~~~~    
  391 |   __and_<is_copy_assignable<_T1>,
      |   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~        
  392 |          is_copy_assignable<_T2>>::value,
      |          ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  393 |   const pair&, const __nonesuch&>::type __p)
      |   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~
/usr/include/c++/10/bits/stl_pair.h:401:7: note: candidate: 'std::pair<_T1, _T2>& std::pair<_T1, _T2>::operator=(typename std::conditional<std::__and_<std::is_move_assignable<_Tp>, std::is_move_assignable<_T2> >::value, std::pair<_T1, _T2>&&, std::__nonesuch&&>::type) [with _T1 = int; _T2 = int; typename std::conditional<std::__and_<std::is_move_assignable<_Tp>, std::is_move_assignable<_T2> >::value, std::pair<_T1, _T2>&&, std::__nonesuch&&>::type = std::pair<int, int>&&]'
  401 |       operator=(typename conditional<
      |       ^~~~~~~~
/usr/include/c++/10/bits/stl_pair.h:404:31: note:   no known conversion for argument 1 from '<brace-enclosed initializer list>' to 'std::conditional<true, std::pair<int, int>&&, std::__nonesuch&&>::type' {aka 'std::pair<int, int>&&'}
  401 |       operator=(typename conditional<
      |                 ~~~~~~~~~~~~~~~~~~~~~
  402 |   __and_<is_move_assignable<_T1>,
      |   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  403 |          is_move_assignable<_T2>>::value,
      |          ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  404 |   pair&&, __nonesuch&&>::type __p)
      |   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~
/usr/include/c++/10/bits/stl_pair.h:418:2: note: candidate: 'template<class _U1, class _U2> typename std::enable_if<std::__and_<std::is_assignable<_T1&, const _U1&>, std::is_assignable<_T2&, const _U2&> >::value, std::pair<_T1, _T2>&>::type std::pair<_T1, _T2>::operator=(const std::pair<_U1, _U2>&) [with _U1 = _U1; _U2 = _U2; _T1 = int; _T2 = int]'
  418 |  operator=(const pair<_U1, _U2>& __p)
      |  ^~~~~~~~
/usr/include/c++/10/bits/stl_pair.h:418:2: note:   template argument deduction/substitution failed:
aliens.cpp:198:30: note:   couldn't deduce template parameter '_U1'
  198 |         in.a[i] = {r[i], c[i]};
      |                              ^
In file included from /usr/include/c++/10/bits/stl_algobase.h:64,
                 from /usr/include/c++/10/bits/specfun.h:45,
                 from /usr/include/c++/10/cmath:1927,
                 from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:41,
                 from aliens.cpp:1:
/usr/include/c++/10/bits/stl_pair.h:430:2: note: candidate: 'template<class _U1, class _U2> typename std::enable_if<std::__and_<std::is_assignable<_T1&, _U1&&>, std::is_assignable<_T2&, _U2&&> >::value, std::pair<_T1, _T2>&>::type std::pair<_T1, _T2>::operator=(std::pair<_U1, _U2>&&) [with _U1 = _U1; _U2 = _U2; _T1 = int; _T2 = int]'
  430 |  operator=(pair<_U1, _U2>&& __p)
      |  ^~~~~~~~
/usr/include/c++/10/bits/stl_pair.h:430:2: note:   template argument deduction/substitution failed:
aliens.cpp:198:30: note:   couldn't deduce template parameter '_U1'
  198 |         in.a[i] = {r[i], c[i]};
      |                              ^