Submission #464678

#	Time	Username	Problem	Language	Result	Execution time	Memory
464678		ahmedfouadnew	Zamjena (COCI18_zamjena)	C++17	70 / 70	71 ms	11440 KiB

zamjena

#include<bits/stdc++.h>
using namespace std;
#define int long long
#define pb push_back
const int mod=1e9+7;
int n;
string s[50001];
string s2[50001];
int sz[100001];
int par[100001];
int num[100001];
vector<pair<string,int> >vv;
int its(string sss)
{
    int ret=0;
    for(int i=0;i<sss.size();i++)
    {
        ret*=10;
        ret+=sss[i]-'0';
    }
    return ret;
}
int findp(int u)
{
    if(par[u]==u)
        return u;
    return par[u]=findp(par[u]);
}
void join(int u,int v)
{
    u=findp(u);
    v=findp(v);
    if(u==v) return;
    if(num[u]&&num[v]&&(num[u]!=num[v]))
    {
        puts("NE");
        exit(0);
    }
    if(sz[u]<sz[v]) swap(u,v);
    par[v]=u;
    sz[u]+=sz[v];
    num[u]=num[u]|num[v];
    return;
}
signed main()
{
    int n;
    cin>>n;
    for(int i=0;i<n;i++)
    {
        cin>>s[i];
        sz[i]=1;
        par[i]=i;
        if(s[i][0]<='9'&&s[i][0]>='0')
            num[i]=its(s[i]);
        else num[i]=0;
    }
    for(int i=0;i<n;i++)
    {
        cin>>s2[i];
        par[n+i]=n+i;
        sz[n+i]=1;
         if(s2[i][0]<='9'&&s2[i][0]>='0')
            num[n+i]=its(s2[i]);
        else num[n+i]=0;
    }
    for(int i=0;i<n;i++)
    {
         vv.pb({s[i],i});
         vv.pb({s2[i],n+i});
    }
    sort(vv.begin(),vv.end());
    for(int i=1;i<vv.size();i++)
    {
        if(vv[i].first[0]<='9'&&vv[i].first[0]>='0') continue;
        if(vv[i].first==vv[i-1].first)
        {
            join(vv[i].second,vv[i-1].second);
        }
    }
    for(int i=0;i<n;i++)
    {
    join(i,i+n);
    }
    puts("DA");
    return 0;
}

Compilation message (stderr)

zamjena.cpp: In function 'long long int its(std::string)':
zamjena.cpp:16:18: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   16 |     for(int i=0;i<sss.size();i++)
      |                 ~^~~~~~~~~~~
zamjena.cpp: In function 'int main()':
zamjena.cpp:73:18: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<std::pair<std::__cxx11::basic_string<char>, long long int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   73 |     for(int i=1;i<vv.size();i++)
      |                 ~^~~~~~~~~~

• Subtask 1: 14 / 14
• Subtask 2: 14 / 14
• Subtask 3: 14 / 14
• Subtask 4: 14 / 14
• Subtask 5: 14 / 14