Submission #472209

#	Time	Username	Problem	Language	Result	Execution time	Memory
472209		_L__	Zamjena (COCI18_zamjena)	C++17	28 / 70	39 ms	12120 KiB

zamjena

// This code is written by _L__
#include <bits/stdc++.h>
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>
using namespace __gnu_pbds;
using namespace std;
#define endl '\n'
template<class T> using ordered_set = tree<T, null_type , less<T> , rb_tree_tag , tree_order_statistics_node_update>;
#define F_word ios_base::sync_with_stdio(false), cin.tie(NULL), cout.tie(NULL);
typedef long long ll;
typedef long double ld;
const ll mod = 1e9+7, N = 1e5+30, INF = 1e18;
const ld E = 1e-6;
#define ff first
#define ss second
bool an_int(string s){
    return (s[0] >= '1' && s[0] <= '9');
}
bool a_word(string s){
    return (s[0] >= 'a' && s[0] <= 'z');
}
vector<int> G[N];
set<int> st;
bool vis[N];
int n; vector<string> v(N), x(N);
void dfs(int node){
    vis[node] = 1;
    if(node > n){
        int idx = node-n;
        if(an_int(x[idx])){
            ll c = 0;
            for(int i = 0; i < x[idx].size(); ++i){
                c*=10;
                c += x[idx][i]-'0';
            }
            st.insert(c);
        }
    } else {
        if(an_int(v[node])){
            ll c = 0;
            for(int i = 0; i < v[node].size(); ++i){
                c *= 10;
                c += v[node][0]-'0';
            }
            st.insert(c);
        }
    }
    for(auto i: G[node]){
        if(!(vis[i])) dfs(i);
    }
}

int main(void){
    F_word;
    cin >> n;
    map<string, vector<int>> mp;
    for(int i = 1; i <= n; ++i){
        cin >> v[i]; mp[v[i]].push_back(i);
    }
    for(int i = 1; i <= n; ++i){
        cin >> x[i]; mp[x[i]].push_back(n+i);
    }
    for(int i = 1; i <= n; ++i){
        G[i].push_back(n+i);
        if(an_int(v[i])) continue;
        for(auto c: mp[v[i]]){
            if(c == i) continue;
            G[i].push_back(c);
        }
    }
    for(int i = 1; i <= n; ++i){
        G[n+i].push_back(i);
        if(an_int(x[i])) continue;
        for(auto c: mp[x[i]]){
            if(c == n+i) continue;
            G[n+i].push_back(c);
        }
    }
    bool y = 1;
    for(int i = 1; i <= 2*n; ++i){
        if(!(vis[i])){
            st.clear();
            dfs(i);
            if(st.size() >= 2){y=0;break;}
        }
    }
    cout << (y? "DA\n": "NE\n");
}

Compilation message (stderr)

zamjena.cpp: In function 'void dfs(int)':
zamjena.cpp:32:30: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   32 |             for(int i = 0; i < x[idx].size(); ++i){
      |                            ~~^~~~~~~~~~~~~~~
zamjena.cpp:41:30: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   41 |             for(int i = 0; i < v[node].size(); ++i){
      |                            ~~^~~~~~~~~~~~~~~~

• Subtask 1: 14 / 14
• Subtask 2: 14 / 14
• Subtask 3: 0 / 14
• Subtask 4: 0 / 14
• Subtask 5: 0 / 14