Submission #1252703

#	Time	Username	Problem	Language	Result	Execution time	Memory
1252703		CodeLakVN	Rima (COCI17_rima)	C++20	14 / 140	855 ms	3552 KiB

rima

#include <bits/stdc++.h>
using namespace std;

#define task "main"
#define F first
#define S second
#define ii pair<int, int>
#define il pair<int, long long>
#define li pair<long long, int>
#define FOR(i, a, b) for(int i = (a); i <= (b); ++i)
#define FOD(i, b, a) for(int i = (b); i >= (a); --i)

template <class T1, class T2>
    bool maximize(T1 &a, T2 b){
        if (a < b) {a = b; return true;}
        return false;
    }

template <class T1, class T2>
    bool minimize(T1 &a, T2 b){
        if (a > b) {a = b; return true;}
        return false;
    }

template <class T>
    void printArr(T container, string separator = " ", string finish = "\n", ostream &out = cout){
        for(auto item: container) out << item << separator;
        out << finish;
    }

int n;
string word[3003];

int dp[3003];

void solve() {
    cin >> n;
    FOR(i, 1, n) cin >> word[i], reverse(word[i].begin(), word[i].end());

    assert(n <= 3000);
    int maxx = 0;
    FOR(i, 1, n) maximize(maxx, (int)word[i].size());
    assert(maxx <= 3000);

    FOR(i, 1, n) {
        dp[i] = 1;
        FOR(j, 1, i - 1) {
            int len = min((int)word[i].size(), (int)word[j].size());
            FOR(k, 0, min((int)word[i].size(), (int)word[j].size()) - 1) if (word[i][k] != word[j][k]) {
                len = k;
                break;
            }
            if (len >= max((int)word[i].size(), (int)word[j].size()) - 1) maximize(dp[i], dp[j] + 1);
        }
    }
    cout << *max_element(dp + 1, dp + n + 1);
}

int32_t main() {
    if (fopen(task".inp", "r")) {
        freopen(task".inp", "r", stdin);
        freopen(task".ans", "w", stdout);
    }
    ios_base::sync_with_stdio(0);
    cin.tie(0); cout.tie(0);

    bool multitest = 0;
    int numTest = 1;
    if (multitest) cin >> numTest;

    while (numTest--) {
        solve();
    }

    return 0;
}

/* Lak lu theo dieu nhac!!!! */

Compilation message (stderr)

rima.cpp: In function 'int32_t main()':
rima.cpp:61:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   61 |         freopen(task".inp", "r", stdin);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~
rima.cpp:62:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   62 |         freopen(task".ans", "w", stdout);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~

• Subtask 1: 14 / 140