Submission #907128

#	Time	Username	Problem	Language	Result	Execution time	Memory
907128		ibm2006	Minerals (JOI19_minerals)	C++17	25 / 100	11 ms	1368 KiB

minerals

#include "minerals.h"
#include<bits/stdc++.h>
using namespace std;
typedef int ll;
ll n,i,j,k,l,r,x,y,z,w,s,t,perm[1100000];
vector<ll> v,u;
void dnc(vector<ll> v,vector<ll> u)
{
    //printf("(%lld %lld)\n",v.size(),u.size());
    ll i,m=v.size();
    ll mid=m/2,x,s=0;
    if(m==1)
    {
        perm[v[0]]=u[0];
        return;
    }
    for(i=0;i<mid;i++)
    {
        //printf("! %lld\n",v[i]);
        x=Query(v[i]);
        s++;
    }
    vector<ll> v1,v2,u1,u2;
    for(i=0;i<mid;i++)
    {
        v1.push_back(v[i]);
    }
    for(i=mid;i<m;i++)
    {
        v2.push_back(v[i]);
    }
    for(i=0;i<m;i++)
    {
       // printf("! %lld\n",u[i]);
        y=Query(u[i]);
        s++;
        y=s-y;
      //  printf("(%lld)\n",y);
        if(y>0)
            u1.push_back(u[i]);
        else
            u2.push_back(u[i]);
          //  printf("! %lld\n",u[i]);
        Query(u[i]);
        s--;
    }
    for(i=0;i<mid;i++)
    {
        //printf("! %lld\n",v[i]);
        Query(v[i]);
        s--;
    }
    dnc(v1,u1);
    dnc(v2,u2);
}
void Solve(ll N) {
   n=N;
   for(i=1;i<=n;i++)
    v.push_back(i);
   for(i=1;i<=n;i++)
   {
       u.push_back(i+n);
   }
   dnc(v,u);
   for(i=1;i<=n*2;i++)
   {
       if(perm[i]==0)
        continue;
       Answer(i,perm[i]);
   }
}

Compilation message (stderr)

minerals.cpp: In function 'void dnc(std::vector<int>, std::vector<int>)':
minerals.cpp:11:16: warning: variable 'x' set but not used [-Wunused-but-set-variable]
   11 |     ll mid=m/2,x,s=0;
      |                ^

• Subtask 1: 0 / 6
• Subtask 2: 25 / 25
• Subtask 3: 0 / 9
• Subtask 4: 0 / 30
• Subtask 5: 0 / 5
• Subtask 6: 0 / 5
• Subtask 7: 0 / 5
• Subtask 8: 0 / 5
• Subtask 9: 0 / 10