Submission #860350

#	Time	Username	Problem	Language	Result	Execution time	Memory
860350		ASN49K	Speedrun (RMI21_speedrun)	C++14	0 / 100	1 ms	508 KiB

speedrun

#include <bits/stdc++.h>
#include "speedrun.h"
#define bug(a) std::cerr << "(" << #a << ": " << a << ")\n";
#define all(x) x.begin(),x.end()
#define pb push_back
using namespace std;
void setHintLen (int l);
void setHint(int i, int j, bool b);
int getLength ();
bool getHint(int j);
bool goTo(int x);
void assignHints (int subtask , int n, int a[], int b[])
{
    vector<vector<int>>g(n+1);
    setHintLen(20);
    for(int i=1;i<n;i++)
    {
        g[a[i]].pb(b[i]);
        g[b[i]].pb(a[i]);
    }
    vector<int>nodes;
    function<void(int,int)>dfs=[&](int x,int tt)
    {
        for(int i=0;i<10;i++)
        {
            setHint(x,i+1,tt&(1<<i)>0);
        }
        nodes.pb(x);
    };
    dfs(1,0);
    nodes.pb(0);
    for(int i=1;i<=n;i++)
    {
        for(int j=0;j<10;j++)
        {
            setHint(nodes[i-1],j+11,nodes[i]&(1<<j)>0);
        }
    }
}
void speedrun(int subtask , int n, int x )
{
    auto tata=[&]()
    {
        int sol=0;
        for(int i=0;i<10;i++)
        {
            if(getHint(i+1))
            {
                sol|=(1<<i);
            }
        }
        return sol;
    };
    auto next=[&]()
    {
        int sol=0;
        for(int i=0;i<10;i++)
        {
            if(getHint(i+11))
            {
                sol|=(1<<i);
            }
        }
        return sol;
    };
    while(x!=1)
    {
        x=tata();
        goTo(x);
    }
    for(int i=1;i<n;i++)
    {
        int urm=next();
        while(!goTo(urm))
        {
            goTo(tata());
        }
    }
}

Compilation message (stderr)

speedrun.cpp: In lambda function:
speedrun.cpp:26:36: warning: suggest parentheses around comparison in operand of '&' [-Wparentheses]
   26 |             setHint(x,i+1,tt&(1<<i)>0);
      |                              ~~~~~~^~
speedrun.cpp: In function 'void assignHints(int, int, int*, int*)':
speedrun.cpp:36:52: warning: suggest parentheses around comparison in operand of '&' [-Wparentheses]
   36 |             setHint(nodes[i-1],j+11,nodes[i]&(1<<j)>0);
      |                                              ~~~~~~^~

• Subtask 1: 0 / 21
• Subtask 2: 0 / 8
• Subtask 3: 0 / 19
• Subtask 4: 0 / 12
• Subtask 5: 0 / 40