제출 #28241

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
28241		三( ε:) (#68)	Play Onwards (FXCUP2_onward)	C++14	0 / 1	36 ms	2304 KiB

onward

#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]);
}

컴파일 시 표준 에러 (stderr) 메시지

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++)
                       ^

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