oj.uz

Submission #647380

# Submission time Handle Problem Language Result Execution time Memory
647380 2022-10-02T10:39:53 Z Niya Speedrun (RMI21_speedrun) C++14
0 / 100
 2 ms 912 KB 
#include<bits/stdc++.h>
#include "speedrun.h"
using namespace std;

const int maxn = 1024;
vector<int>v[maxn];
vector<int>tour;
int used[maxn];

void set_parent( int nb, int par )
{
    int cnt = 1;
    while( par != 0 )
    {
        setHint(nb,cnt,(par%2));
        par /= 2;
    }
}

void dfs( int w )
{
    used[w] = 1;
    tour.push_back(w);
    int sz = v[w].size();

    for( int i = 0; i < sz; i ++ )
    {
        int nb = v[w][i];
        if( used[nb] == 0 )
        {
            set_parent(nb,w);
            dfs(nb);
        }
    }
}

void set_next( int x, int y )
{
    int cnt = 11;
    while( y != 0 )
    {
        setHint(x,cnt,(y%2));
        y /= 2;
    }
}
void assignHints(int subtask, int N, int A[], int B[] )
{
    setHintLen(20);
    for( int i = 1; i < N; i ++ )
    {
        v[A[i]].push_back(B[i]);
        v[B[i]].push_back(A[i]);
    }

    int sz = tour.size();
    for( int i = 0; i < sz-1; i ++ )
    {
        int x = tour[i];
        int y = tour[i+1];
        set_next(x,y);
    }
}

int parent[maxn];
int pw[maxn];

int get_parent()
{
    int x = 0;
    for( int i = 1; i <= 10; i ++ )
    {
        x += ( getHint(i) * pw[i-1] );
    }
    return x;
}

int get_next()
{
    int x = 0;
    for( int i = 11; i <= 20; i ++ )
    {
        x += ( getHint(i) * pw[i-11] );
    }
    return x;
}

void speedrun(int subtask, int N, int start)
{
   pw[0] = 1;
   for( int i = 1; i <= 10; i ++ )
    pw[i] = pw[i-1] * 2;

   int w = start;
   int cnt = 0;

   while( true )
   {

       if( cnt == N ) break;

       if( used[w] == 0 )
       {
           used[w] = 1;
           parent[w] = get_parent();
           cnt += 1;
       }

       int next_ver = get_next();
       if( get_next == 0 )
       {
           if( parent[w] == 0 ) cout << 1/0 << endl;
           goTo(parent[w]);
           w = parent[w];
           continue;
       }
       else if( used[next_ver] == 1 )
       {
           if( parent[w] == 0 ) cout << 1/0 << endl;
           goTo( parent[w]);
           w = parent[w];
           continue;
       }
       else
       {
           if( next_ver == 0 ) cout << 1/0 << endl;
           goTo(next_ver);
           w = next_ver;
           continue;
       }
   }
}

Compilation message

speedrun.cpp: In function 'void speedrun(int, int, int)':
speedrun.cpp:109:21: warning: the address of 'int get_next()' will never be NULL [-Waddress]
  109 |        if( get_next == 0 )
      |            ~~~~~~~~~^~~~
speedrun.cpp:111:42: warning: division by zero [-Wdiv-by-zero]
  111 |            if( parent[w] == 0 ) cout << 1/0 << endl;
      |                                         ~^~
speedrun.cpp:118:42: warning: division by zero [-Wdiv-by-zero]
  118 |            if( parent[w] == 0 ) cout << 1/0 << endl;
      |                                         ~^~
speedrun.cpp:125:41: warning: division by zero [-Wdiv-by-zero]
  125 |            if( next_ver == 0 ) cout << 1/0 << endl;
      |                                        ~^~

Subtask #1
0.0 / 21.0

# Verdict Execution time Memory Grader output
1 Runtime error 2 ms 884 KB Execution killed with signal 4
2 Halted 0 ms 0 KB -

Subtask #2
0.0 / 8.0

# Verdict Execution time Memory Grader output
1 Runtime error 2 ms 880 KB Execution killed with signal 4
2 Halted 0 ms 0 KB -

Subtask #3
0.0 / 19.0

# Verdict Execution time Memory Grader output
1 Runtime error 2 ms 884 KB Execution killed with signal 4
2 Halted 0 ms 0 KB -

Subtask #4
0.0 / 12.0

# Verdict Execution time Memory Grader output
1 Runtime error 2 ms 880 KB Execution killed with signal 4
2 Halted 0 ms 0 KB -

Subtask #5
0.0 / 40.0

# Verdict Execution time Memory Grader output
1 Runtime error 2 ms 912 KB Execution killed with signal 4
2 Halted 0 ms 0 KB -