제출 #1046851

#제출 시각아이디문제언어결과실행 시간메모리
1046851Gromp15Aliens (IOI16_aliens)C++17
컴파일 에러
0 ms0 KiB
#include "aliens.h" #pragma GCC optimize("O3") #pragma GCC target("avx2") #include <bits/stdc++.h> #define ar array #define sz(x) (int)x.size() #define all(x) x.begin(), x.end() #define ll long long using namespace std; template<typename T> bool ckmin(T &a, const T &b) { return a > b ? a = b, 1 : 0; } template<typename T> bool ckmax(T &a, const T &b) { return a < b ? a = b, 1 : 0; } const ll INF = 1e18; long long take_photos(int n, int m, int k, std::vector<int> r, std::vector<int> c) { vector<ar<int, 2>> a(n); for (int i = 0; i < n; i++) { a[i] = {r[i], c[i]}; if (r[i] > c[i]) swap(a[i][0], a[i][1]); } sort(all(a)); int mx = -1; vector<ar<int, 2>> b; for (int i = 0; i < n; i++) { int r = i; while (r+1 < n && a[r+1][0] == a[r][0]) r++; if (a[r][1] > mx) { b.push_back({a[r][0], a[r][1]}); mx = a[r][1]; } i = r; } swap(a, b); n = sz(a); ll L = 0, R = 1e12, ans = -1; while (L <= R) { ll mid = (L+R)/2; vector<ar<ll, 3>> dp(n+1, {INF, INF, -INF}); dp[0] = {0, 0, 0}; auto sq = [&](int x) { return (ll)x * x; }; deque<ar<ll, 4>> d; auto f = [&](int j) { return dp[j][0] + sq(a[j][0]) - 2 * a[j][0] - (j ? sq(max(0, a[j-1][1] - a[j][0] + 1)) : 0); }; d.emplace_back({-2 * a[0][0], f(0), 0, 0}); auto query = [&](const ar<ll, 4>& x, int pos) { return x[0] * pos + x[1]; }; auto inter = [&](const ar<ll, 4>& x1, const ar<ll, 4>& x2) { return (double)(x2[1] - x1[1]) / (x1[0] - x2[0]); }; for (int i = 1; i <= n; i++) { ll C = sq(a[i-1][1]) + 2 * a[i-1][1] + 1 + mid; int cur = a[i-1][1]; while (d.size() > 1 && query(d[1], cur) < query(d[0], cur)) d.pop_front(); dp[i][0] = query(d[0], cur) + C; for (auto& x : d) { if (query(x, cur) == query(d[0], cur)) { ckmin(dp[i][1], x[2] + 1); ckmax(dp[i][2], x[3] + 1); } else break; } if (i < n) { ar<ll, 4> nw{-2 * a[i][0], f(i), dp[i][1], dp[i][2]}; while (d.size() > 1 && inter(d.end()[-2], nw) <= inter(d.end()[-2], d.end()[-1])) d.pop_back(); d.emplace_back(nw); } } if (dp[n][1] <= k) { int u = min(k, int(dp[n][2])); ans = dp[n][0] - u * mid; R = mid-1; } else L = mid+1; } return ans; }

컴파일 시 표준 에러 (stderr) 메시지

aliens.cpp: In function 'long long int take_photos(int, int, int, std::vector<int>, std::vector<int>)':
aliens.cpp:45:44: error: no matching function for call to 'std::deque<std::array<long long int, 4> >::emplace_back(<brace-enclosed initializer list>)'
   45 |   d.emplace_back({-2 * a[0][0], f(0), 0, 0});
      |                                            ^
In file included from /usr/include/c++/10/deque:69,
                 from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:68,
                 from aliens.cpp:4:
/usr/include/c++/10/bits/deque.tcc:164:7: note: candidate: 'std::deque<_Tp, _Alloc>::reference std::deque<_Tp, _Alloc>::emplace_back(_Args&& ...) [with _Args = {}; _Tp = std::array<long long int, 4>; _Alloc = std::allocator<std::array<long long int, 4> >; std::deque<_Tp, _Alloc>::reference = std::array<long long int, 4>&]'
  164 |       deque<_Tp, _Alloc>::
      |       ^~~~~~~~~~~~~~~~~~
/usr/include/c++/10/bits/deque.tcc:164:7: note:   candidate expects 0 arguments, 1 provided