제출 #435834

#제출 시각아이디문제언어결과실행 시간메모리
4358342qbingxuanWorst Reporter 4 (JOI21_worst_reporter4)C++14
컴파일 에러
0 ms0 KiB
#include <bits/stdc++.h> #ifdef local #define safe std::cerr<<__PRETTY_FUNCTION__<<" line "<<__LINE__<<" safe\n" #define debug(a...) qqbx(#a, a) #define pary(a...) danb(#a, a) template <typename ...T> void qqbx(const char *s, T ...a) { int cnt = sizeof...(T); ((std::cerr << "\033[1;32m(" << s << ") = (") , ... , (std::cerr << a << (--cnt ? ", " : ")\033[0m\n"))); } template <typename T> void danb(const char *s, T L, T R) { std::cerr << "\033[1;32m[ " << s << " ] = [ "; for (auto it = L; it != R; ++it) std::cerr << *it << ' '; std::cerr << "]\033[0m\n"; } #else #define safe ((void)0) #define debug(...) ((void)0) #define pary(...) ((void)0) #endif // local #define all(v) begin(v),end(v) using namespace std; using ll = int64_t; const int maxn = 200025, maxm = 10000; int H[maxn], C[maxn]; vector<int> g[maxn]; map<int,ll,greater<>> sub[maxn]; int cyc[maxn]; void join(int a, int b) { if (sub[a].size() > sub[b].size()) swap(sub[a], sub[b]); for (auto [h, val]: sub[a]) sub[b][h] += val; } void dfs(int i) { for (int j: g[i]) { dfs(j); join(j, i); } sub[i][H[i]] += C[i]; auto it = sub[i].upper_bound(H[i]); ll v = C[i]; while (it != sub[i].end()) { if (it->second < v) { v -= it->second; sub[i].erase(it++); } else { it->second -= v; break; } } } signed main() { ios_base::sync_with_stdio(0), cin.tie(0); int n; cin >> n; ll tot = 0; vector<int> A(n); vector<int> indeg(n); for (int i = 0; i < n; i++) { cin >> A[i] >> H[i] >> C[i]; tot += C[i]; --A[i]; ++indeg[A[i]]; g[A[i]].push_back(i); } for (int i = 0; i < n; i++) for (int i = 0; i < n; i++) cyc[i] = -1; queue<int> que; for (int i = 0; i < n; i++) if (indeg[i] == 0) que.push(i), cyc[i] = 0; while (!que.empty()) { int i = que.front(); que.pop(); int j = A[i]; if (--indeg[j] == 0) que.push(j), cyc[j] = 0; } vector<vecoor<int>> roots; roots.reserve(n); for (int i = 0, tot = 0; i < n; i++) if (cyc[i] == -1) { roots.emplace_back(); roots.back().emplace_back(i); cyc[i] = ++tot; for (int x = A[i]; x != i; x = A[x]) { roots.back().emplace_back(x); cyc[x] = cyc[i]; } } ll ans = 0; for (auto R: roots) { map<int,ll> best; for (int x: R) { ll dp = C[x]; for (int y: g[x]) { if (cyc[y]) continue; dfs(y); for (auto [h, val]: sub[y]) if (h >= H[x]) dp += val; join(y, R[0]); } best[H[x]] += dp; } ll mx = 0; for (auto [h, val]: sub[R[0]]) mx += val; for (auto [h, val]: best) mx = max(mx, val); ans += mx; } cout << tot - ans << '\n'; }

컴파일 시 표준 에러 (stderr) 메시지

worst_reporter2.cpp: In function 'void join(int, int)':
worst_reporter2.cpp:34:15: warning: structured bindings only available with '-std=c++17' or '-std=gnu++17'
   34 |     for (auto [h, val]: sub[a])
      |               ^
worst_reporter2.cpp: In function 'int main()':
worst_reporter2.cpp:79:12: error: 'vecoor' was not declared in this scope
   79 |     vector<vecoor<int>> roots;
      |            ^~~~~~
worst_reporter2.cpp:79:22: error: template argument 1 is invalid
   79 |     vector<vecoor<int>> roots;
      |                      ^~
worst_reporter2.cpp:79:22: error: template argument 2 is invalid
worst_reporter2.cpp:80:11: error: request for member 'reserve' in 'roots', which is of non-class type 'int'
   80 |     roots.reserve(n);
      |           ^~~~~~~
worst_reporter2.cpp:82:15: error: request for member 'emplace_back' in 'roots', which is of non-class type 'int'
   82 |         roots.emplace_back();
      |               ^~~~~~~~~~~~
worst_reporter2.cpp:83:15: error: request for member 'back' in 'roots', which is of non-class type 'int'
   83 |         roots.back().emplace_back(i);
      |               ^~~~
worst_reporter2.cpp:86:19: error: request for member 'back' in 'roots', which is of non-class type 'int'
   86 |             roots.back().emplace_back(x);
      |                   ^~~~
worst_reporter2.cpp:91:18: error: 'begin' was not declared in this scope; did you mean 'std::begin'?
   91 |     for (auto R: roots) {
      |                  ^~~~~
      |                  std::begin
In file included from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:95,
                 from worst_reporter2.cpp:1:
/usr/include/c++/10/valarray:1224:5: note: 'std::begin' declared here
 1224 |     begin(const valarray<_Tp>& __va)
      |     ^~~~~
worst_reporter2.cpp:91:18: error: 'end' was not declared in this scope; did you mean 'std::end'?
   91 |     for (auto R: roots) {
      |                  ^~~~~
      |                  std::end
In file included from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:95,
                 from worst_reporter2.cpp:1:
/usr/include/c++/10/valarray:1244:5: note: 'std::end' declared here
 1244 |     end(const valarray<_Tp>& __va)
      |     ^~~
worst_reporter2.cpp:98:27: warning: structured bindings only available with '-std=c++17' or '-std=gnu++17'
   98 |                 for (auto [h, val]: sub[y]) if (h >= H[x]) dp += val;
      |                           ^
worst_reporter2.cpp:104:19: warning: structured bindings only available with '-std=c++17' or '-std=gnu++17'
  104 |         for (auto [h, val]: sub[R[0]]) mx += val;
      |                   ^
worst_reporter2.cpp:105:19: warning: structured bindings only available with '-std=c++17' or '-std=gnu++17'
  105 |         for (auto [h, val]: best) mx = max(mx, val);
      |                   ^