Submission #96122

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
96122	2019-02-06 10:41:20	igzi	Race (IOI11_race)	C++17	100 / 100	522 ms	37116 KiB

race

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
#include <bits/stdc++.h>
#define maxK 1000006
#define maxN 200005
using namespace std;
vector <pair<int,int>> adj[maxN];
vector <int> all;
long long dis[maxK],s[maxN],ans=INT_MAX,k;
bool mar[maxN];
void dfs0(int n,int par){
s[n]=1;
for(int i=0;i<adj[n].size();i++){
int x=adj[n][i].first;
if(x==par || mar[x]) continue;
dfs0(x,n);
s[n]+=s[x];
}
}
int cen(int n,int par,int S){
for(int i=0;i<adj[n].size();i++){
int x=adj[n][i].first;
if(x==par || mar[x]) continue;
if(s[x]>S/2) return cen(x,n,S);
}
return n;
}
 
 
הההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההה
XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX

Compilation message (stderr)

race.cpp: In function 'void dfs0(int, int)':
race.cpp:14:14: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
 for(int i=0;i<adj[n].size();i++){
             ~^~~~~~~~~~~~~~
race.cpp: In function 'int cen(int, int, int)':
race.cpp:23:14: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
 for(int i=0;i<adj[n].size();i++){
             ~^~~~~~~~~~~~~~
race.cpp: In function 'void dfs1(int, int, long long int, int)':
race.cpp:34:14: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
 for(int i=0;i<adj[n].size();i++){
             ~^~~~~~~~~~~~~~
race.cpp: In function 'void dfs2(int, int, long long int, int)':
race.cpp:43:14: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
 for(int i=0;i<adj[n].size();i++){
             ~^~~~~~~~~~~~~~
race.cpp: In function 'void decompose(int)':
race.cpp:54:14: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
 for(int i=0;i<adj[c].size();i++){
             ~^~~~~~~~~~~~~~
race.cpp:61:14: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
 for(int i=0;i<all.size();i++) dis[all[i]]=INT_MAX;
             ~^~~~~~~~~~~
race.cpp:63:14: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
 for(int i=0;i<adj[c].size();i++){
             ~^~~~~~~~~~~~~~

• Subtask 1: 9 / 9
• Subtask 2: 12 / 12
• Subtask 3: 22 / 22
• Subtask 4: 57 / 57