oj.uz

Submission #140247

# Submission time Handle Problem Language Result Execution time Memory
140247 2019-08-02T11:20:12 Z egorlifar Sailing Race (CEOI12_race) C++17
40 / 100
 725 ms 2552 KB 
/*
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 */
#include <iostream>
#include <complex>
#include <vector>
#include <string>
#include <algorithm>
#include <cstdio>
#include <numeric>
#include <cstring>
#include <ctime>
#include <cstdlib>
#include <set>
#include <map>
#include <unordered_map>
#include <unordered_set>
#include <list>
#include <cmath>
#include <bitset>
#include <cassert>
#include <queue>
#include <stack>
#include <deque>
#include <random>
 
using namespace std;
template<typename T1, typename T2>inline void chkmin(T1 &x, T2 y) { x = (x > y ? y: x);}
template<typename T1, typename T2>inline void chkmax(T1 &x, T2 y) { x = (x < y ? y: x);}
#define sz(c) (int)(c).size()
#define all(c) (c).begin(), (c).end()
#define rall(c) (c).rbegin(), (c).rend()
#define left left224
#define right right224
#define next next224
#define rank rank224
#define prev prev224
#define y1 y1224
#define read(FILENAME) freopen((FILENAME + ".in").c_str(), "r", stdin)
#define write(FILENAME) freopen((FILENAME + ".out").c_str(), "w", stdout)
#define files(FILENAME) read(FILENAME), write(FILENAME)
#define pb push_back
#define mp make_pair
const string FILENAME = "input";
const int MAXN = 501;

int n, t;
bitset<501> b[MAXN];
int dp[MAXN][MAXN][2];


int main() {
    ios_base::sync_with_stdio(false);
    cin.tie(0);
    cout.tie(0);
    //read(FILENAME); 
    cin >> n >> t;
    for (int i = 0; i < n; i++) {
        int a;
        while (cin >> a) {
            if (a == 0) {
                break;
            }
            b[i][a - 1] = true;
        }
    }
    for (int len = 1; len <= n - 1; len++) {
        for (int i = 0; i < n; i++) {
            int j = (i + len) % n;
            for (int t = 0; t < 2; t++) {
                int cur = (t == 0 ? i: j);
                for (int k = 0; k <= len; k++) {
                    int g = (i + k >= n ? i + k - n: i + k);
                    if (g != cur) {
                        if (b[cur][g]) {
                            chkmax(dp[len][i][t], dp[k - (cur == i ? 1: 0)][(i == cur ? (i + 1) % n: i)][1] + 1);
                            chkmax(dp[len][i][t], dp[(len - k) - (cur == j ? 1: 0)][g][0] + 1);
                        }
                    }
                }
            }
        }
    }
    int res = 0;
    int pos = -1;
    for (int i =  0; i < n; i++) {
        chkmax(res, dp[n - 1][i][0]);
        if (res == dp[n - 1][i][0]) {
            pos = i;
        }
        chkmax(res, dp[n - 1][i][1]);
        if (res == dp[n - 1][i][1]) {
            pos = (i + n - 1) % n;
        }
    }
    cout << res << endl;
    cout << pos + 1 << endl;
    return 0; 
}

Subtask #1
40.0 / 100.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Output is correct
2 Incorrect 2 ms 504 KB Output isn't correct
3 Incorrect 2 ms 380 KB Output isn't correct
4 Incorrect 3 ms 504 KB Output isn't correct
5 Correct 3 ms 504 KB Output is correct
6 Incorrect 4 ms 504 KB Output isn't correct
7 Correct 6 ms 632 KB Output is correct
8 Incorrect 5 ms 632 KB Output isn't correct
9 Correct 9 ms 632 KB Output is correct
10 Correct 10 ms 760 KB Output is correct
11 Correct 12 ms 760 KB Output is correct
12 Incorrect 44 ms 1144 KB Output isn't correct
13 Incorrect 112 ms 1500 KB Output isn't correct
14 Correct 234 ms 2040 KB Output is correct
15 Incorrect 589 ms 2396 KB Output isn't correct
16 Incorrect 652 ms 2396 KB Output isn't correct
17 Incorrect 578 ms 2296 KB Output isn't correct
18 Correct 408 ms 2416 KB Output is correct
19 Incorrect 725 ms 2552 KB Output isn't correct
20 Incorrect 719 ms 2524 KB Output isn't correct