#include<bits/stdc++.h>
#include "Alicelib.h"
#define MAXN 2007
using namespace std;
int n,m,num;
vector< pair<int,int> > edges;
void Alice( int N, int M, int A[], int B[]){
srand(42070);
n=N; m=M;
num=17;
for(int i=0;i<n;i++){
for(int f=10;f>=0;f--){
if(((1<<f)&(i+num))>0)edges.push_back({i,n+f});
}
}
for(int i=n;i<=n+10;i++){
edges.push_back({i,n+11});
if(i<n+10)edges.push_back({i,i+1});
}
for(int i=0;i<m;i++){
edges.push_back({A[i],B[i]});
}
InitG( n+12, edges.size() );
for(int i=0;i<edges.size();i++){
MakeG(i,edges[i].first,edges[i].second);
}
}
#include <bits/stdc++.h>
#include "Boblib.h"
#define MAXN 2007
using namespace std;
namespace{
int v,u,e,cnt,root,curr;
vector<int> g[MAXN],w,line[MAXN];
int sp[MAXN],tim;
vector<int> path;
vector< pair<int,int> > ed;
int used2[MAXN],tim2,pos[MAXN],to[MAXN];
bool dali;
void dfs(int x,int p){
path.push_back(x);
for(int i=0;i<line[x].size();i++){
if(line[x][i]==p)continue;
dfs(line[x][i],x);
}
}
bool ok(int x){
w.clear(); tim++; e=0;
for(int i=0;i<g[x].size();i++){
w.push_back(g[x][i]);
sp[w.back()]=tim;
line[w.back()].clear();
}
for(int i=0;i<w.size();i++){
for(int f:g[w[i]]){
if(sp[f]==tim and f>w[i]){
e++;
line[w[i]].push_back(f);
line[f].push_back(w[i]);
}
}
}
if(e!=w.size()-1)return false;
cnt=0;
for(int i=0;i<w.size();i++){
if(line[w[i]].size()!=1 and line[w[i]].size()!=2)return false;
if(line[w[i]].size()==1){
cnt++; root=w[i];
}
}
if(cnt!=2)return false;
path.clear(); dfs(root,0);
for(int i=0;i<path.size();i++){
pos[path[i]]=i;
}
tim2++; dali=true;
for(int f=0;f<v;f++){
if(f==x or sp[f]==tim)continue;
curr=0;
for(int k:g[f]){
if(sp[k]!=tim)continue;
curr+=(1<<pos[k]);
}
to[f]=curr;
if(used2[curr]==tim2 or curr<17 or curr>=v-12+17){dali=false;break;}
used2[curr]=tim2;
}
if(dali)return true;
reverse(path.begin(),path.end());
for(int i=0;i<path.size();i++){
pos[path[i]]=i;
}
tim2++; dali=true;
for(int f=0;f<v;f++){
if(f==x or sp[f]==tim)continue;
curr=0;
for(int k:g[f]){
if(sp[k]!=tim)continue;
curr+=(1<<pos[k]);
}
to[f]=curr;
if(used2[curr]==tim2 or curr<17 or curr>=v-12+17){dali=false;break;}
used2[curr]=tim2;
}
if(dali)return true;
return false;
}
}
void Bob( int V, int U, int C[], int D[] ){
v=V; u=U;
for(int i=0;i<u;i++){
g[C[i]].push_back(D[i]);
g[D[i]].push_back(C[i]);
}
for(int i=0;i<v;i++){
if(g[i].size()==11 and ok(i)){
e=0;
for(int f=0;f<u;f++){
if(sp[C[f]]==tim or sp[D[f]]==tim)continue;
ed.push_back({to[C[f]]-17,to[D[f]]-17});
e++;
}
InitMap(V-12,e);
for(int f=0;f<ed.size();f++){
MakeMap(ed[i].first,ed[i].second);
}
return;
}
}
}
Compilation message
Alice.cpp: In function 'void Alice(int, int, int*, int*)':
Alice.cpp:33:15: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
33 | for(int i=0;i<edges.size();i++){
| ~^~~~~~~~~~~~~
Bob.cpp: In function 'void {anonymous}::dfs(int, int)':
Bob.cpp:19:16: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
19 | for(int i=0;i<line[x].size();i++){
| ~^~~~~~~~~~~~~~~
Bob.cpp: In function 'bool {anonymous}::ok(int)':
Bob.cpp:28:16: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
28 | for(int i=0;i<g[x].size();i++){
| ~^~~~~~~~~~~~
Bob.cpp:35:16: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
35 | for(int i=0;i<w.size();i++){
| ~^~~~~~~~~
Bob.cpp:46:7: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
46 | if(e!=w.size()-1)return false;
| ~^~~~~~~~~~~~
Bob.cpp:49:16: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
49 | for(int i=0;i<w.size();i++){
| ~^~~~~~~~~
Bob.cpp:59:16: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
59 | for(int i=0;i<path.size();i++){
| ~^~~~~~~~~~~~
Bob.cpp:82:16: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
82 | for(int i=0;i<path.size();i++){
| ~^~~~~~~~~~~~
Bob.cpp: In function 'void Bob(int, int, int*, int*)':
Bob.cpp:125:17: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
125 | for(int f=0;f<ed.size();f++){
| ~^~~~~~~~~~
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Incorrect |
3 ms |
15532 KB |
Wrong Answer [14] |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Incorrect |
3 ms |
15532 KB |
Wrong Answer [14] |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Incorrect |
426 ms |
39964 KB |
Wrong Answer [14] |
| 2 |
Halted |
0 ms |
0 KB |
- |
