Submission #227877

#	Time	Username	Problem	Language	Result	Execution time	Memory
227877		kartel	Zamjena (COCI18_zamjena)	C++14	14 / 70	30 ms	8960 KiB

zamjena

#include <bits/stdc++.h>
//#include <ext/pb_ds/assoc_container.hpp>
//#include <ext/pb_ds/tree_policy.hpp>
#define in(x) freopen(x, "r", stdin)
#define out(x) freopen(x, "w", stdout)
#pragma GCC optimize("Ofast")
#pragma GCC optimize("unroll-loops")
#pragma GCC optimize("-O3")
#define F first
#define S second
#define pb push_back
#define N +100500
#define M ll(1e9 + 7)
#define sz(x) (int)x.size()
#define re return
#define oo ll(1e18)
#define el '\n'
using namespace std;
//using namespace __gnu_pbds;
//typedef tree <int, null_type, less_equal <int> , rb_tree_tag, tree_order_statistics_node_update> ordered_set;
typedef long long ll;
typedef long double ld;

map <string, int> mk;
map <string, vector <string> > g;
int i, n, j, can;
string a[N], b[N];

bool isdig(string s)
{
    int i = 0;
    while (i < s.size() && s[i] >= '0' && s[i] <= '9') i++;
    return i == s.size();
}

void dfs(string v, string pr, int kl)
{
    if (isdig(v)) kl++;
    if (kl > 1) can = 0;
    mk[v] = 1;
    for (auto u : g[v])
    {
        if (u == pr || mk[u]) continue;
        dfs(u, v, kl);
    }
}


int main()
{
    srand(time(0));
    ios_base::sync_with_stdio(0);
    iostream::sync_with_stdio(0);
    ios::sync_with_stdio(0);
    cin.tie(NULL);
    cout.tie(NULL);

//    in("sum.in");
//    out("output.txt");

    cin >> n;
    for (i = 1; i <= n; i++) cin >> a[i];
    for (i = 1; i <= n; i++) cin >> b[i];
    can = 1;
    for (i = 1; i <= n; i++)
    {
        g[a[i]].pb(b[i]);
        g[b[i]].pb(a[i]);
    }
    for (i = 1; i <= n; i++)
    {
        if (!mk[a[i]]) dfs(a[i], "", 0);
        if (!mk[b[i]]) dfs(b[i], "", 0);
    }
    cout << (can == 1 ? "DA" : "NE");
}



// 119 78 175 411

Compilation message (stderr)

zamjena.cpp: In function 'bool isdig(std::__cxx11::string)':
zamjena.cpp:32:14: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     while (i < s.size() && s[i] >= '0' && s[i] <= '9') i++;
            ~~^~~~~~~~~~
zamjena.cpp:33:14: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     return i == s.size();
            ~~^~~~~~~~~~~

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