Submission #221460

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
221460	2020-04-10 08:06:00	patrikpavic2	Capital City (JOI20_capital_city)	C++17	100 / 100	1273 ms	37216 KiB

capital_city

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#include <cstdio>
#include <vector>
#include <queue>
#define PB push_back
using namespace std;
const int N = 2e5 + 500;
int sub[N], uzeo[N], C[N], cnt[N], zabr[N], par[N], centr[N], kol[N], uk[N];
int fin = N, n;
vector < int > moji, koji[N], v[N];
void dfs(int x, int lst){
  sub[x] = 1; moji.PB(x);
  par[x] = lst;
  for(int y : v[x]){
    if(centr[y] || lst == y) continue;
    dfs(y, x); sub[x] += sub[y]; 
  }
}
int nadi(int x){
  dfs(x, x);
  int nn = (int)moji.size();
  int dos = x;
  for(int y : moji){
    if(2 * sub[y] >= nn && sub[y] < sub[dos])
      dos = y;
 
 
הההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההה
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Compilation message (stderr)

capital_city.cpp: In function 'int main()':
capital_city.cpp:78:16: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  int bla; scanf("%d%d", &n, &bla);
           ~~~~~^~~~~~~~~~~~~~~~~~
capital_city.cpp:80:18: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   int x, y; scanf("%d%d", &x, &y);
             ~~~~~^~~~~~~~~~~~~~~~
capital_city.cpp:84:21: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%d", C + i), uk[C[i]]++;
   ~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~

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