Submission #464634

#	Time	Username	Problem	Language	Result	Execution time	Memory
464634		aihay	Zamjena (COCI18_zamjena)	C++14	70 / 70	266 ms	44208 KiB

zamjena

#pragma GCC optimize ("O3")
#pragma GCC optimize ("unroll-loops")
#pragma GCC optimize("-Ofast")
#include <bits/stdc++.h>
using namespace std;

typedef int in;
#define int long long
#define f first
#define s second
#define pb push_back
#define pp push
#define double long double
#define ceil(x,y) (x/y)+(x%y!=0)*((double)(1.0*x/y)<0?0:1)
#define floor(x,y) (x/y)+(x%y!=0)*((double)(1.0a*x/y)<0?-1:0)
const int MAX=1e7;
const int MOD=1e9+7;
const int MAAX=1e18;

string arr[500010],arr2[500010];
map<string,vector<string> >mp;
map<string,int> vis;
set<string> fun(string idx){
    set<string> ans;
    if(vis[idx])
        return ans;
    vis[idx]=1;
    for(int i=0;i<mp[idx].size()&&ans.size()<2;i++){
        set<string>x=fun(mp[idx][i]);
        set<string>::iterator it;
        for(it=x.begin();it!=x.end()&&ans.size()<2;it++){
            ans.insert(*it);
        }
    }
    if(idx[0]>='0'&&idx[0]<='9')
        ans.insert(idx);
    return ans;
}

in main(){
    ios_base::sync_with_stdio(0);cin.tie(0);cout.tie(0);
    int tc=1;
    //cin>>tc;
    while(tc--){
        int n;
        cin>>n;
        for(int i=0;i<n;i++){
            cin>>arr[i];
        }
        for(int i=0;i<n;i++){
            string s;
            cin>>s;
            arr2[i]=s;
            mp[arr[i]].pb(s);
            mp[s].pb(arr[i]);
        }
        bool bol=1;
        for(int i=0;i<n;i++){
            bol&=(fun(arr[i]).size()>1?0:1);
            bol&=(fun(arr2[i]).size()>1?0:1);
        }
        cout<<(bol?"DA\n":"NE\n");
    }
}

Compilation message (stderr)

zamjena.cpp: In function 'std::set<std::__cxx11::basic_string<char> > fun(std::string)':
zamjena.cpp:28:18: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<std::__cxx11::basic_string<char> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   28 |     for(int i=0;i<mp[idx].size()&&ans.size()<2;i++){
      |                 ~^~~~~~~~~~~~~~~

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