제출 #409865

#	제출 시각UTC-0	아이디	문제	언어	결과	실행 시간	메모리
409865	2021-05-21 17:26:52	jhwest2	자매 도시 (APIO20_swap)	C++14	100 / 100	485 ms	43948 KiB

swap

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#include "swap.h"
#include <bits/stdc++.h>
#define va first
#define vb second
using namespace std;
typedef long long lint;
typedef pair<int, int> pint;
const int M = 1e5 + 10;
const int INF = 1e9 + 10;
int n, m, Deg[M], Cnt[M], Mx[M], Sz[M], Par[M], A[M], Dep[M], P[20][M], B[20][M];
vector<int> V[M];
vector<pint> G[M];
pair<int, pint> E[M << 1];
int Find(int u) {
  return u == Par[u] ? u : Par[u] = Find(Par[u]);
}
bool is_line(int u) {
  int x = Find(u);
  return Mx[x] <= 2 && Cnt[x] == Sz[x] - 1;
}
void Union(int u, int v, int d) {
  if (Find(u) == Find(v)) {
    int x = Find(u);
    Mx[x] = max({ Mx[x], ++Deg[u], ++Deg[v] });
    Cnt[x]++;
    if (!is_line(x)) {
      for (int k : V[x]) A[k] = d; V[x].clear();
    }
 
 
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컴파일 시 표준 에러 (stderr) 메시지

swap.cpp: In function 'void Union(int, int, int)':
swap.cpp:29:4: warning: this 'for' clause does not guard... [-Wmisleading-indentation]
   29 |    for (int k : V[x]) A[k] = d; V[x].clear();
      |    ^~~
swap.cpp:29:33: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the 'for'
   29 |    for (int k : V[x]) A[k] = d; V[x].clear();
      |                                 ^
swap.cpp:40:2: warning: this 'for' clause does not guard... [-Wmisleading-indentation]
   40 |  for (int k : V[y]) V[x].push_back(k); V[y].clear();
      |  ^~~
swap.cpp:40:40: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the 'for'
   40 |  for (int k : V[y]) V[x].push_back(k); V[y].clear();
      |                                        ^
swap.cpp:43:3: warning: this 'for' clause does not guard... [-Wmisleading-indentation]
   43 |   for (int k : V[x]) A[k] = d; V[x].clear();
      |   ^~~
swap.cpp:43:32: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the 'for'
   43 |   for (int k : V[x]) A[k] = d; V[x].clear();
      |                                ^
swap.cpp: In function 'void dfs(int, int)':
swap.cpp:47:12: warning: structured bindings only available with '-std=c++17' or '-std=gnu++17'
   47 |  for (auto [d, x] : G[cur]) if (p != x) {
      |            ^
swap.cpp: In function 'int query(int, int)':
swap.cpp:60:14: warning: suggest parentheses around '-' inside '>>' [-Wparentheses]
   60 |   if (Dep[u] - Dep[v] >> i & 1) {
      |       ~~~~~~~^~~~~~~~
swap.cpp: In function 'void init(int, int, std::vector<int>, std::vector<int>, std::vector<int>)':
swap.cpp:82:8: warning: structured bindings only available with '-std=c++17' or '-std=gnu++17'
   82 |   auto [u, v] = E[i].vb;
      |        ^

• Subtask 1: 6 / 6
• Subtask 2: 7 / 7
• Subtask 3: 17 / 17
• Subtask 4: 20 / 20
• Subtask 5: 23 / 23
• Subtask 6: 27 / 27