Submission #116975

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
116975	2019-06-14 10:30:20	tmwilliamlin168	City (JOI17_city)	C++14	100 / 100	638 ms	56808 KiB

Encoder

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#include "Encoder.h"
#include <bits/stdc++.h>
using namespace std;
const int mxN=2.5e5, B=1<<8;
vector<int> adj[mxN];
int s[mxN], dt1, dt2;
int encrange(int a, int b) {
  return b*(b-1)/2+a;
}
void dfs2(int u) {
  int ds=dt2++;
  for(int v : adj[u])
    dfs2(v);
  Code(u, 1<<26|dt1<<15|encrange(ds, dt2));
}
void dfs1(int u=0, int p=-1, int d=0) {
  int ds=dt1;
  s[u]=1;
  if(~p)
    adj[u].erase(find(adj[u].begin(), adj[u].end(), p));
  for(int v : adj[u]) {
    dfs1(v, u, d+1);
    s[u]+=s[v];
  }
  if(u&&s[u]<B)
    return;
 
 
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Device

 
 
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Compilation message (stderr)

Encoder.cpp: In function 'void dfs1(int, int, int)':
Encoder.cpp:34:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
  for(int i=0, cs; i<adj[u].size()&&s[adj[u][i]]<B; ++dt1) {
                   ~^~~~~~~~~~~~~~
Encoder.cpp:36:10: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
   while(i<adj[u].size()&&cs+s[adj[u][i]]<B) {
         ~^~~~~~~~~~~~~~

Device.cpp: In function 'int Answer(long long int, long long int)':
Device.cpp:23:27: warning: suggest parentheses around '-' in operand of '&' [-Wparentheses]
   if((s>>15^t>>15)&(1<<11)-1)
                    ~~~~~~~^~
Device.cpp:25:38: warning: suggest parentheses around '-' in operand of '&' [-Wparentheses]
   array<int, 2> rs=decrange(s&(1<<15)-1), rt=decrange(t&(1<<15)-1);
                               ~~~~~~~^~
Device.cpp:25:64: warning: suggest parentheses around '-' in operand of '&' [-Wparentheses]
   array<int, 2> rs=decrange(s&(1<<15)-1), rt=decrange(t&(1<<15)-1);
                                                         ~~~~~~~^~
Device.cpp:29:27: warning: suggest parentheses around '-' in operand of '&' [-Wparentheses]
   return inr(s>>15&(1<<11)-1, decrange(t&(1<<21)-1))?0:2;
                    ~~~~~~~^~
Device.cpp:29:49: warning: suggest parentheses around '-' in operand of '&' [-Wparentheses]
   return inr(s>>15&(1<<11)-1, decrange(t&(1<<21)-1))?0:2;
                                          ~~~~~~~^~
Device.cpp:31:27: warning: suggest parentheses around '-' in operand of '&' [-Wparentheses]
   return inr(t>>15&(1<<11)-1, decrange(s&(1<<21)-1))?1:2;
                    ~~~~~~~^~
Device.cpp:31:49: warning: suggest parentheses around '-' in operand of '&' [-Wparentheses]
   return inr(t>>15&(1<<11)-1, decrange(s&(1<<21)-1))?1:2;
                                          ~~~~~~~^~
Device.cpp:33:37: warning: suggest parentheses around '-' in operand of '&' [-Wparentheses]
  array<int, 2> rs=decrange(s&(1<<21)-1), rt=decrange(t&(1<<21)-1);
                              ~~~~~~~^~
Device.cpp:33:63: warning: suggest parentheses around '-' in operand of '&' [-Wparentheses]
  array<int, 2> rs=decrange(s&(1<<21)-1), rt=decrange(t&(1<<21)-1);
                                                        ~~~~~~~^~

• Subtask 1: 8 / 8
• Subtask 2: 92 / 92