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답안 #604768

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
604768 2022-07-25T09:38:50 Z Mazaalai Sailing Race (CEOI12_race) C++17
20 / 100
 498 ms 2544 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;
bool edge[N][N];
int dp[N][N][2];
int f (int a, int x = 1) {
    return (a+x)%n;
}
void go () {
    cin >> n >> type;
    for (int x, i = 0; i < n; i++) {
        while (cin >> x && x != 0) {
            edge[i][x-1] = 1;
        }
    }
    for (int d = 2; d < n; d++) 
    for (int l = 0, r = f(l, d); 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], 1+max(dp[l][m][1], dp[m][r][0]));
            if (edge[r][m]) chmax(dp[l][r][1], 1+max(dp[l][m][1], dp[m][r][0]));
        }
    }
    PII ans = {-1, 0};
    for (int i = 0; i < n; i++)
    for (int j = 0; j < n; j++) {
        chmax(ans, mp(edge[i][j]+max(dp[i][j][0], dp[j][i][1]), i+1));
    }
    cout << ans.ff << '\n' << ans.ss << '\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 0 ms 340 KB Output isn't correct
2 Incorrect 0 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 1 ms 468 KB Output isn't correct
6 Incorrect 2 ms 596 KB Output isn't correct
7 Correct 2 ms 596 KB Output is correct
8 Incorrect 2 ms 596 KB Output isn't correct
9 Correct 6 ms 724 KB Output is correct
10 Correct 4 ms 724 KB Output is correct
11 Incorrect 7 ms 724 KB Output isn't correct
12 Incorrect 31 ms 1108 KB Output isn't correct
13 Incorrect 85 ms 1652 KB Output isn't correct
14 Incorrect 180 ms 2100 KB Output isn't correct
15 Incorrect 434 ms 2540 KB Output isn't correct
16 Incorrect 445 ms 2536 KB Output isn't correct
17 Incorrect 416 ms 2536 KB Output isn't correct
18 Incorrect 348 ms 2544 KB Output isn't correct
19 Incorrect 481 ms 2540 KB Output isn't correct
20 Correct 498 ms 2536 KB Output is correct