Submission #1005071

#	Time	Username	Problem	Language	Result	Execution time	Memory
1005071		vjudge1	Untitled (POI11_imp)	C++17	0 / 100	482 ms	65536 KiB

Main

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#include <bits/stdc++.h>
using namespace std;
#define endl "\n"
vector <int> v[3001];
int f[3001][3001];
int type[3001];
int b,r;
void dfs(int i,int cnt){
    if(type[i]!=0) return;
    type[i]=(cnt%2)+2;
    
    if(cnt%2==0) r++;
    else b++;
    
    for(int j:v[i]) dfs(j,cnt+1);
    return;
}
signed main()
{
    ios_base::sync_with_stdio(false);
    cin.tie(NULL);
    cout.tie(NULL);
    int n,m;
    cin>>n>>m;
    for(int i=0;i<m;i++){
        int a,b;
        cin>>a>>b;
        f[a][b]=1;
        f[b][a]=1;
    }
    for(int i=1;i<=n;i++){
        for(int j=1;j<=n;j++){
            if(i!=j&&f[i][j]==0) v[i].push_back(j);
        }
    }
    dfs(1,0);
    int cnt=n/3;
    if(r>=b){
        for(int i=1;i<=n&&cnt>0;i++){
            if(type[i]==2){
                cout<<i<<" ";
                cnt--;
            }
        }    
    }
    else{
        for(int i=1;i<=n&&cnt>0;i++){
            if(type[i]==1){
                cout<<i<<" ";
                cnt--;
            }
        }    
    }
    return 0;
}

• Subtask 1: 0 / 9
• Subtask 2: 0 / 9
• Subtask 3: 0 / 9
• Subtask 4: 0 / 9
• Subtask 5: 0 / 9
• Subtask 6: 0 / 9
• Subtask 7: 0 / 9
• Subtask 8: 0 / 9
• Subtask 9: 0 / 9
• Subtask 10: 0 / 9
• Subtask 11: 0 / 10