oj.uz

Submission #28241

# Submission time Handle Problem Language Result Execution time Memory
28241 2017-07-16T04:07:27 Z 三( ε:)(#1146, xdoju, veckal, unused) Play Onwards (FXCUP2_onward) C++14
0 / 1
 36 ms 2304 KB 
#include <bits/stdc++.h>
using namespace std;

string str[205];
vector<int> graph[205];
int vis[205];

bool comp(const string &s1, const string &s2, int k)
{
    unordered_set<string> st;
    for (int i = 0; i <= s1.size() - k; i++)
    {
        st.insert(s1.substr(i, k));
    }

    for (int j = 0; j <= s2.size() - k; j++)
    {
        if (st.count(s2.substr(j, k))) return true;
    }
    return false;
}

bool dfs(int t, int c)
{
    vis[t] = c;
    for (int nxt : graph[t])
    {
        if (vis[nxt] == 0)
        {
            if (dfs(nxt, c ^ 3) == false) return false;
        }
        else if (vis[nxt] == vis[t]) return false;
    }
    return true;
}

int main()
{
    int n, k;
    cin >> n >> k;
    for (int i = 0; i < n; i++)
    {
        cin >> str[i];
    }
    for (int i = 0; i < n; i++)
    {
        for (int j = i + 1; j < n; j++)
        {
            if (comp(str[i], str[j], k))
            {
                graph[i].push_back(j);
                graph[j].push_back(i);
            }
        }
    }

    int C = 1;

    for (int i = 0; i < n; i++)
    {
        if (vis[i]) continue;
        if (dfs(i, C) == false)
        {
            printf("No\n");
            return 0;
        }
        else C ^= 3;
    }

    printf("Yes\n");
    for (int i = 0; i < n; i++) printf("%d\n", vis[i]);
}

Compilation message

onward.cpp: In function 'bool comp(const string&, const string&, int)':
onward.cpp:11:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     for (int i = 0; i <= s1.size() - k; i++)
                       ^
onward.cpp:16:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     for (int j = 0; j <= s2.size() - k; j++)
                       ^

Subtask #1
0 / 1.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 2040 KB Output is correct
2 Correct 0 ms 2040 KB Output is correct
3 Correct 0 ms 2040 KB Output is correct
4 Correct 0 ms 2040 KB Output is correct
5 Correct 6 ms 2304 KB Output is correct
6 Correct 23 ms 2304 KB Output is correct
7 Correct 29 ms 2040 KB Output is correct
8 Correct 33 ms 2040 KB Output is correct
9 Correct 33 ms 2040 KB Output is correct
10 Correct 36 ms 2040 KB Output is correct
11 Correct 9 ms 2040 KB Output is correct
12 Correct 36 ms 2040 KB Output is correct
13 Correct 26 ms 2040 KB Output is correct
14 Correct 16 ms 2040 KB Output is correct
15 Runtime error 3 ms 2180 KB Execution killed because of forbidden syscall gettid (186)
16 Halted 0 ms 0 KB -