Submission #499484

#	Time	Username	Problem	Language	Result	Execution time	Memory
499484		andrei_boaca	Speedrun (RMI21_speedrun)	C++17	Compilation error	0 ms	0 KiB

speedrun

#include "speedrun.h"
#include <bits/stdc++.h>
//#include "grader.cpp"

typedef pair<int,int> pii;
vector<int> muchii[1005];
vector<int> st;
int n,par[1005];
bool use[1005];
void dfs(int nod)
{
    st.push_back(nod);
    use[nod]=1;
    for(auto i:muchii[nod])
        if(!use[i])
        {
            par[i]=nod;
            dfs(i);
        }
}
void assignHints(int subtask, int N, int A[], int B[]) {
    n=N;
    for(int i=1;i<n;i++)
    {
        muchii[A[i]].push_back(B[i]);
        muchii[B[i]].push_back(A[i]);
    }
    dfs(1);
    setHintLen(20);
    for(int i=0;i<st.size();i++)
    {
        int p=par[st[i]];
        int nod=st[i];
        int lg=0;
        for(int bit=9;bit>=0;bit--)
        {
            lg++;
            if((p>>bit)&1)
                setHint(nod,lg,1);
            else
                setHint(nod,lg,0);
        }
        int nxt=0;
        if(i+1<st.size())
            nxt=st[i+1];
        for(int bit=9;bit>=0;bit--)
        {
            lg++;
            if((nxt>>bit)&1)
                setHint(nod,lg,1);
            else
                setHint(nod,lg,0);
        }
    }
}
pii getvals()
{
    int nxt=0,p=0;
    for(int i=1;i<=10;i++)
        p=p*2+getHint(i);
    for(int i=11;i<=20;i++)
        nxt=nxt*2+getHint(i);
    return {nxt,p};
}
int nrused=0;
void DFS(int nod)
{
    if(use[nod]==0)
    {
        use[nod]=1;
        nrused++;
    }
    if(nrused==n)
        return;
    pii x=getvals();
    int nxt,p;
    tie(nxt,p)=x;
    if(nxt==0)
    {
        goTo(p);
        DFS(p);
    }
    else if(!use[nxt])
    {
        while(!goTo(nxt))
        {
            goTo(p);
            pii x=getvals();
            if(use[p]==0)
            {
                use[p]=1;
                nrused++;
            }
            if(nrused==n)
                return;
            p=x.second;
        }
        DFS(nxt);
    }
    else
    {
        goTo(p);
        DFS(p);
    }
}
void speedrun(int subtask, int N, int start) {
    n=N;
    for(int i=1;i<=n;i++)
        use[i]=0;
    DFS(start);
}

Compilation message (stderr)

speedrun.cpp:5:9: error: 'pair' does not name a type
    5 | typedef pair<int,int> pii;
      |         ^~~~
speedrun.cpp:6:1: error: 'vector' does not name a type
    6 | vector<int> muchii[1005];
      | ^~~~~~
speedrun.cpp:7:1: error: 'vector' does not name a type
    7 | vector<int> st;
      | ^~~~~~
speedrun.cpp: In function 'void dfs(int)':
speedrun.cpp:12:5: error: 'st' was not declared in this scope; did you mean 'std'?
   12 |     st.push_back(nod);
      |     ^~
      |     std
speedrun.cpp:14:16: error: 'muchii' was not declared in this scope
   14 |     for(auto i:muchii[nod])
      |                ^~~~~~
speedrun.cpp: In function 'void assignHints(int, int, int*, int*)':
speedrun.cpp:25:9: error: 'muchii' was not declared in this scope
   25 |         muchii[A[i]].push_back(B[i]);
      |         ^~~~~~
speedrun.cpp:30:19: error: 'st' was not declared in this scope; did you mean 'std'?
   30 |     for(int i=0;i<st.size();i++)
      |                   ^~
      |                   std
speedrun.cpp: At global scope:
speedrun.cpp:56:1: error: 'pii' does not name a type
   56 | pii getvals()
      | ^~~
speedrun.cpp: In function 'void DFS(int)':
speedrun.cpp:75:5: error: 'pii' was not declared in this scope
   75 |     pii x=getvals();
      |     ^~~
speedrun.cpp:77:5: error: 'tie' was not declared in this scope; did you mean 'std::tie'?
   77 |     tie(nxt,p)=x;
      |     ^~~
      |     std::tie
In file included from /usr/include/c++/10/functional:54,
                 from /usr/include/c++/10/pstl/glue_algorithm_defs.h:13,
                 from /usr/include/c++/10/algorithm:74,
                 from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:65,
                 from speedrun.cpp:2:
/usr/include/c++/10/tuple:1615:5: note: 'std::tie' declared here
 1615 |     tie(_Elements&... __args) noexcept
      |     ^~~
speedrun.cpp:77:16: error: 'x' was not declared in this scope
   77 |     tie(nxt,p)=x;
      |                ^
speedrun.cpp:88:16: error: expected ';' before 'x'
   88 |             pii x=getvals();
      |                ^~
      |                ;