oj.uz

답안 #603836

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
603836 2022-07-24T12:16:24 Z Mazaalai Sailing Race (CEOI12_race) C++17
20 / 100
 517 ms 2552 KB 
#include <bits/stdc++.h>
// #pragma GCC optimize("O3, unroll-loops")
// #pragma GCC target("avx2")
// #define int long long
using namespace std;

#define _upgrade                  \
    ios_base::sync_with_stdio(0); \
    cin.tie(0);                   \
    cout.tie(0);
#define LINE "---------------------\n"
#define ALL(A) A.begin(), A.end()
#define LLA(A) A.rbegin(), A.rend()
#define Q queue
#define ff first
#define ss second
#define pb push_back
#define mp make_pair
#define lb lower_bound 
#define ub upper_bound 
#define ub upper_bound 
#define sz(x) (int)x.size()
#define chmin(a,b) a=min(a,b)
#define chmax(a,b) a=max(a,b)

using db = double;
using ld = long double;
using sint = short int;
using ll = long long;
using uint = unsigned int;
// PQ going up <int, VI, greater<int> >
using VI = vector<int>;
using VVI = vector<VI>;
using VVVI = vector<VVI>;
using VB = vector<bool>;
using VVB = vector<VB>;
using VVVB = vector<VVB>;
using VLL = vector<ll>;
using VVLL = vector<VLL>;
using PII = pair<int, int>;
using VPI = vector<PII>;
using VVPI = vector<VPI>;
using PLL = pair<ll, ll>;
mt19937 rng(chrono::steady_clock::now().time_since_epoch().count());
int strToInt(string&a) {
    stringstream x(a);
    int b;
    x >> b;
    return b;
}
int gcd(int a, int b) {
   if (b == 0) return a;
   return gcd(b, a % b);
}
/*

|                    _                                                     
|  __   _           | |                                                    
| |   \| | ___  ___ | |_                                                   
| | |\ | |/ _ \/ __/| __|                                                  
| | | \  |  __/\__ \| |_                                                   
| |_|  \_|\___ /___/ \__|                                                  
|                                                      _         _   _     
|                                                     (_)       | | | |    
|  _ __  _ __ ___   __ _ _ __ __ _ _ __ ___  _ __ ___  _ ___ ___| |_| |_   
| | '_ \| '__/ _ \ / _` | '__/ _` | '_ ` _ \| '_ ` _ \| / __/ __| __| __|  
| | |_) | | | (_) | (_| | | | (_| | | | | | | | | | | | \__ \__ \ |_| |_   
| | .__/|_|  \___/ \__, |_|  \__,_|_| |_| |_|_| |_| |_|_|___/___/\__|\__|  
| | |               __/ |                                                  
| |_|              |___/                   _                               
|                                  _      (_)                              
|  _ __ ___   __ _ ____ __ _  __ _| | __ _ _                               
| | '_ ` _ \ / _` |_   / _` |/ _` | |/ _` | |                              
| | | | | | | (_|  /  / (_| | (_| | | (_| | |                              
| |_| |_| |_|\__,_|____\__,_|\__,_|_|\__,_|_|                              
*/

const db PI = acos(-1.0); //M_PI;
const ll INFF = 4e18;
const int INF = 1.07e9;
const int MOD = 1e9 + 7;
const int MOD1 = 998244353; //7*19*2^23 +1;
const int dx[] = {-1, 0, 1, 0, -1, -1, 1, 1};
const int dy[] = {0, 1, 0, -1, -1, 1, -1, 1};




const int N = 500 + 5;
const int M = 2e5 + 5;

int nums[N];

int n, m, k, q, type;
string s;
vector <int> paths[N];
bool edge[N][N];
int dp[N][N][2];
bool mid (int l, int r, int m) {
    if (l < r) return (l < m && m < r);
    return (
        (l < m && m < n) || 
        (l > m && m < r)
    );
}
int f (int a) {
    return (a+1)%n;
}
void go () {
    cin >> n >> type;
    for (int i = 0, x; i < n; i++) {
        while(cin >> x && x-- != 0) {
            // paths[i].pb(x);
            edge[i][x] = 1;
        }
    }
    PII ans = {-1, 0};
    for (int d = 2; d < n; d++)
    for (int l = 0, r = (l+d)%n; l < n ; l++, r=f(r)) {
        for (int m = f(l); m != r; m=f(m)) {
            if (edge[l][m]) {
                chmax(dp[l][r][0], dp[l][m][1]+1);
                chmax(dp[l][r][0], dp[m][r][0]+1);
            }
            if (edge[r][m]) {
                chmax(dp[l][r][1], dp[l][m][1]+1);
                chmax(dp[l][r][1], dp[m][r][0]+1);
            }
        }
        // chmax(ans, mp(dp[l][r][0], l));
        // chmax(ans, mp(dp[l][r][1], r));
    }
    for (int l = 0; l < n; l++)
    for (int r = 0; r < n; r++) {
        if (edge[l][r]) chmax(ans, mp(max(dp[l][r][0], dp[r][l][1]), l));
    }
    cout << ans.ff+1 << '\n' << ans.ss+1 << '\n';
}



signed main () {

#ifndef ONLINE_JUDGE
    // freopen("0.in", "r", stdin);
    // freopen("0.out", "w", stdout);
#endif
    _upgrade
    int T = 1;
    while(T--) go();
    return (0-0); //<3
}

/* stuff you should look for
    * int overflow, array bounds
    * special cases (n=1?)
    
*/

Subtask #1
20.0 / 100.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 1 ms 340 KB Output isn't correct
2 Incorrect 1 ms 340 KB Output isn't correct
3 Incorrect 1 ms 468 KB Output isn't correct
4 Incorrect 1 ms 468 KB Output isn't correct
5 Incorrect 2 ms 468 KB Output isn't correct
6 Incorrect 2 ms 596 KB Output isn't correct
7 Correct 4 ms 596 KB Output is correct
8 Incorrect 3 ms 704 KB Output isn't correct
9 Correct 14 ms 724 KB Output is correct
10 Correct 6 ms 792 KB Output is correct
11 Incorrect 11 ms 796 KB Output isn't correct
12 Incorrect 38 ms 1216 KB Output isn't correct
13 Incorrect 92 ms 1660 KB Output isn't correct
14 Incorrect 219 ms 2112 KB Output isn't correct
15 Incorrect 443 ms 2552 KB Output isn't correct
16 Incorrect 490 ms 2544 KB Output isn't correct
17 Incorrect 449 ms 2552 KB Output isn't correct
18 Incorrect 366 ms 2548 KB Output isn't correct
19 Incorrect 512 ms 2552 KB Output isn't correct
20 Correct 517 ms 2516 KB Output is correct