Submission #107730

#	Time	Username	Problem	Language	Result	Execution time	Memory
107730		ahmad_salah	Savez (COCI15_savez)	C++17	24 / 120	1078 ms	44108 KiB

savez

#include <bits/stdc++.h>

using namespace std;

const int M = 1e6;
vector<string> v;
int n, memo[M] = {};

bool check(string s1, string s2) {
    if (s2.size() < s1.size())
        return false;

    for (int i = 0; i < s1.size(); i++)
        if (s1[i] != s2[i])
            return false;

    while (!s1.empty()) {
        if (s1.back() != s2.back())
            return false;
        s1.pop_back();
        s2.pop_back();
    }

    return true;
}

int solve(int i) {

    int &r = memo[i];

    if (!r) {
        r = 1;
        for (int j = i + 1; j < n; j++) {
            if (check(v[i], v[j]))
                r = max(r, 1 + solve(j));
        }
    }

    return r;
}

int main() {
    ios_base::sync_with_stdio(0);
    cin.tie(0);

    int ans = 0;
    cin >> n;
    while (n--) {
        string s;
        cin >> s;
        v.push_back(s);
    }
    n = v.size();

    for (int i = 0; i < n; i++)
        ans = max(ans, solve(i));

    cout << ans << '\n';

    return 0;
}

Compilation message (stderr)

savez.cpp: In function 'bool check(std::__cxx11::string, std::__cxx11::string)':
savez.cpp:13:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     for (int i = 0; i < s1.size(); i++)
                     ~~^~~~~~~~~~~

• Subtask 1: 12 / 12
• Subtask 2: 12 / 12
• Subtask 3: 0 / 12
• Subtask 4: 0 / 12
• Subtask 5: 0 / 12
• Subtask 6: 0 / 12
• Subtask 7: 0 / 12
• Subtask 8: 0 / 12
• Subtask 9: 0 / 12
• Subtask 10: 0 / 12