Submission #705343

#	Time	Username	Problem	Language	Result	Execution time	Memory
705343		ToroTN	Bosses (BOI16_bosses)	C++14	0 / 100	1 ms	340 KiB

bosses

#include<bits/stdc++.h>
using namespace std;
#define pb push_back
#define ll long long
ll n,m,sub,d[5005],u,type,sum,ans=1e18;
vector<ll> v[5005];
queue<ll> q;
int main()
{
    scanf("%lld",&n);
    for(int i=1;i<=n;i++)
    {
        scanf("%lld",&m);
        for(int j=1;j<=m;j++)
        {
            scanf("%lld",&sub);
            v[sub].pb(i);
        }
    }
    for(int i=1;i<=n;i++)
    {
        memset(d,-1,sizeof d);
        d[i]=1;
        q.push(i);
        while(!q.empty())
        {
            u=q.front();
            q.pop();
            for(auto node:v[u])
            {
                if(d[node]==-1)
                {
                    d[node]=d[u]+1;
                    q.push(node);
                }
            }
        }
        sum=0;
        type=0;
        for(int j=1;j<=n;j++)
        {
            if(d[j]==-1)type=-1;
            sum+=d[j];
        }
        if(type==0)
        {
            ans=min(ans,sum);
        }
    }
    printf("%lld\n",sum);
}

Compilation message (stderr)

bosses.cpp: In function 'int main()':
bosses.cpp:10:10: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   10 |     scanf("%lld",&n);
      |     ~~~~~^~~~~~~~~~~
bosses.cpp:13:14: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   13 |         scanf("%lld",&m);
      |         ~~~~~^~~~~~~~~~~
bosses.cpp:16:18: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   16 |             scanf("%lld",&sub);
      |             ~~~~~^~~~~~~~~~~~~

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