oj.uz

Submission #222085

# Submission time Handle Problem Language Result Execution time Memory
222085 2020-04-12T06:12:39 Z kartel Wand (COCI19_wand) C++14
63 / 70
 42 ms 6264 KB 
#include <bits/stdc++.h>
#define in(x) freopen(x,"r",stdin)
#define out(x) freopen(x,"w",stdout)
#define F first
#define S second
#define pb push_back
#define M ll(998244353)
#define inf ll(2e9+7)
#define N ll(100500)
#define sz(x) x.size()
#pragma GCC optimize("unroll-loops")
#pragma GCC optimize("O3")
#pragma GCC optimize("Ofast")
#define el '\n'
using namespace std;
typedef unsigned long long ull;
typedef long long ll;
typedef long double ld;

//#include <ext/pb_ds/assoc_container.hpp>
//#include <ext/pb_ds/tree_policy.hpp>
//using namespace __gnu_pbds;
//typedef tree <ll, null_type, less_equal <ll>, rb_tree_tag, tree_order_statistics_node_update> os;

int mrk[N];
int q, n, x, y, i;
vector <int> g[N];

void dfs(int v, int pr)
{
    if (mrk[v]) return;
    if (pr != -1) mrk[v] = 1;
    for (auto u : g[v])
        dfs(u, v);
}

int main()
{
//    in("input.txt");
//    out("output.txt");

    ios_base::sync_with_stdio(false);
    iostream::sync_with_stdio(false);
    cin.tie(NULL);

    cin >> n >> q;
    while (q--)
    {
        cin >> x >> y;
        g[y].pb(x);
    }
    dfs(1, -1);
    for (i = 1; i <= n; i++) cout << mrk[i];
}

Subtask #1
63.0 / 70.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 2688 KB Output is correct
2 Correct 6 ms 2688 KB Output is correct
3 Correct 37 ms 5888 KB Output is correct
4 Correct 38 ms 5880 KB Output is correct
5 Correct 38 ms 6012 KB Output is correct
6 Correct 42 ms 6264 KB Output is correct
7 Correct 37 ms 5880 KB Output is correct
8 Correct 38 ms 6016 KB Output is correct
9 Incorrect 40 ms 5880 KB Output isn't correct
10 Correct 41 ms 6264 KB Output is correct