Submission #223173

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
223173	2020-04-15 02:47:53	arnold518	Capital City (JOI20_capital_city)	C++14	100 / 100	1053 ms	38116 KiB

capital_city

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#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
typedef pair<int, int> pii;
typedef pair<ll, ll> pll;
const int MAXN = 2e5;
int N, K, C[MAXN+10], ans=987654321, num[MAXN+10];
vector<int> adj[MAXN+10];
int sz[MAXN+10], del[MAXN+10];
void getsz(int now, int bef)
{
  sz[now]=1;
  for(int nxt : adj[now])
  {
    if(nxt==bef) continue;
    if(del[nxt]) continue;
    getsz(nxt, now);
    sz[now]+=sz[nxt];
  }
}
int getcen(int now, int bef, int S)
{
  for(int nxt : adj[now])
  {
 
 
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Compilation message (stderr)

capital_city.cpp: In function 'void decomp(int)':
capital_city.cpp:91:61: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
  for(auto it : V2) if(cvis[it.second] && V[it.second].size()!=num[it.second]) flag=false;
                                          ~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~
capital_city.cpp: In function 'int main()':
capital_city.cpp:106:9: warning: unused variable 'j' [-Wunused-variable]
  int i, j;
         ^
capital_city.cpp:108:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d%d", &N, &K);
  ~~~~~^~~~~~~~~~~~~~~~
capital_city.cpp:112:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%d%d", &u, &v);
   ~~~~~^~~~~~~~~~~~~~~~
capital_city.cpp:116:40: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  for(i=1; i<=N; i++) scanf("%d", &C[i]), num[C[i]]++;
                      ~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~

• Subtask 1: 1 / 1
• Subtask 2: 10 / 10
• Subtask 3: 30 / 30
• Subtask 4: 59 / 59