Submission #537846

#	Time	Username	Problem	Language	Result	Execution time	Memory
537846		Servus2022	Trobojnica (COCI19_trobojnica)	C++14	0 / 110	0 ms	212 KiB

trobojnica

#include <bits/stdc++.h>

using namespace std;
struct muchie
{
    int x,y,cul;
};
vector <muchie> sol ;
int n,i;
int v[200005];
int ind (int x)
{
    if (x<=0)
    {
        return x+n;
    }
    if (x>n)
    {
        return x-n;
    }
    return x;
}
int cenue(int a ,int b)
{
    int i;
    for (i=1;i<=3;i++)
    {
        if (i!=a&&i!=b)
        {
            return i;
        }
    }
}
int main()
{
    ios_base :: sync_with_stdio(false);
    cin.tie(0);
    #ifdef HOME
    ifstream cin("date.in");
    ofstream cout("date.out");
    #endif // HOME
    cin>>n;
    for (i=1;i<=n;i++)
    {
        char ch;
        cin>>ch;
        v[i]=ch-'0';
    }
    for (int varf = 1 ;varf <=n; varf ++ )
    {
        int acum,stanga,dreapta;
        if (v[ind(varf)]==v[ind(varf-1)])
        {
            continue;
        }
        sol.clear();
        sol.push_back(muchie{ind(varf-1),ind(varf+1),cenue(v[ind(varf-1)],v[ind(varf)])});
        acum = cenue(v[ind(varf-1)],v[ind(varf)]);
        stanga = varf - 1;
        dreapta = varf + 1 ;
        while (ind(stanga-1)!=ind(dreapta+1))
        {
            if (v[ind(stanga-1)]!=acum)
            {
                sol.push_back(muchie{ind(stanga-1),ind(dreapta),cenue(acum,v[ind(stanga-1)])});
                acum = cenue(acum,v[ind(stanga-1)]);
                stanga--;
            }
            else
            if (v[ind(dreapta)]!=acum)
            {
                sol.push_back(muchie{ind(stanga),ind(dreapta+1),cenue(acum,v[ind(dreapta)])});
                acum = cenue(acum,v[ind(dreapta)]);
                dreapta++;
            }
            else
            {
                break;
            }
        }
        if (v[ind(stanga-1)]==acum||acum==v[ind(dreapta)]||v[ind(stanga-1)]==v[ind(dreapta)])
        {
            continue;
        }
        if (sol.size()==n-3)
        {
            cout<<"DA"<<'\n';
            for (i=0;i<sol.size();i++)
            {
                cout<<sol[i].x<<" "<<sol[i].y<<" "<<sol[i].cul<<'\n';
            }
            return 0;
        }
    }
    cout<<"NE";
    return 0;
}

Compilation message (stderr)

trobojnica.cpp: In function 'int main()':
trobojnica.cpp:85:23: warning: comparison of integer expressions of different signedness: 'std::vector<muchie>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   85 |         if (sol.size()==n-3)
      |             ~~~~~~~~~~^~~~~
trobojnica.cpp:88:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<muchie>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   88 |             for (i=0;i<sol.size();i++)
      |                      ~^~~~~~~~~~~
trobojnica.cpp: In function 'int cenue(int, int)':
trobojnica.cpp:33:1: warning: control reaches end of non-void function [-Wreturn-type]
   33 | }
      | ^

• Subtask 1: 0 / 20
• Subtask 2: 0 / 40
• Subtask 3: 0 / 50