Submission #77033

#	Time	Username	Problem	Language	Result	Execution time	Memory
77033		farukkastamonuda	Bosses (BOI16_bosses)	C++14	0 / 100	3 ms	1288 KiB

bosses

#include <bits/stdc++.h>
#define li 10005
#define lo long long
using namespace std ;
lo int n,x,y,vis[li],sub[li],par[li],vis2[li];
vector<lo int> v[li],vec[li];
queue<int> q;
void dfs(int node,int ata){
    if(vis2[node]==1) return ;
    vis2[node]=1;
    sub[node]=1;
    for(int i=0;i<(int)v[node].size();i++){
        int go=v[node][i];
        //if(go==par[node]) continue;
        if(vis2[go]==0){
            dfs(go,node);
            sub[node]+=sub[go];
        }
    }
    sub[node]+=1;
}
int main(){
    scanf("%lld",&n);
    for(int i=1;i<=n;i++){
        scanf("%lld",&x);
        for(int j=1;j<=x;j++){
            scanf("%lld",&y);
            v[y].push_back(i);
        }
    }
    lo int cev=0;
    for(int i=1;i<=n;i++){
        q.push(i);
        while(!q.empty()){
           // printf("*");
            int temp=q.front();
            q.pop();
            if(vis[temp]==1) continue;
            vis[temp]=1;
            for(int i=0;i<(int)v[temp].size();i++){
                int go=v[temp][i];
                if(vis[go]==0 && par[go]==0){
                    vec[temp].push_back(go);
                    vec[go].push_back(temp);
                    par[go]=temp;
                    q.push(go);
                }
            }
        }
        //for(int j=1;j<=n;j++) printf("%d ",par[j]);
       // return 0;
        dfs(i,-1);
        cev=max(cev,sub[i]);
        for(int j=1;j<=n;j++) vec[j].clear();
        memset(vis,0,sizeof(vis));
        memset(vis2,0,sizeof(vis2));
    }
    printf("%lld\n",cev);
    return 0;
}

Compilation message (stderr)

bosses.cpp: In function 'int main()':
bosses.cpp:23:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     scanf("%lld",&n);
     ~~~~~^~~~~~~~~~~
bosses.cpp:25:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
         scanf("%lld",&x);
         ~~~~~^~~~~~~~~~~
bosses.cpp:27:18: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
             scanf("%lld",&y);
             ~~~~~^~~~~~~~~~~

• Subtask 1: 0 / 22
• Subtask 2: 0 / 45
• Subtask 3: 0 / 33