oj.uz

Submission #735627

# Submission time Handle Problem Language Result Execution time Memory
735627 2023-05-04T12:10:34 Z grogu Sailing Race (CEOI12_race) C++14
10 / 100
 563 ms 4556 KB 
#define here cerr<<"===========================================\n"
#define dbg(x) cerr<<#x<<": "<<x<<endl;
#include <bits/stdc++.h>
#define ld double
#define ll long long
#define ull unsigned long long
#define llinf 100000000000000000LL // 10^17
#define iinf 2000000000 // 2*10^9
#define pb push_back
#define popb pop_back
#define fi first
#define sc second
#define endl '\n'
#define pii pair<int,int>
#define pll pair<ll,ll>
#define pld pair<ld,ld>
#define all(a) a.begin(),a.end()
using namespace std;

#define maxn 505
ll n,tip;
ll dp[maxn][maxn][2];
bool d[maxn][maxn];
ll nx[maxn][2];
void solv(ll l,ll r,ll x){
    dp[l][r][x] = 0;
    for(ll tr = r;tr!=l;tr = nx[tr][x^1]) if(d[l][tr]) dp[l][r][x] = max(dp[l][r][x],1 + dp[tr][nx[l][x]][x^1]);
}
int main(){
    cin >> n >> tip;
    for(ll i = 1;i<=n;i++){
        ll x = -1;
        while(x!=0){
            cin >> x;
            d[i][x] = 1;
        }
    }
    for(ll i = 1;i<=n;i++){
        nx[i][0] = i+1;
        nx[i][1] = i-1;
        if(nx[i][0]==n+1) nx[i][0] = 1;
        if(nx[i][1]==0) nx[i][1] = n;
    }
    for(ll d = 1;d<=n;d++){
        for(ll l = 1;l<=n;l++){
            ll r = l+d;
            if(r>n) r-=n;
            solv(l,r,0);
            solv(r,l,1);
        }
    }
    pll ans = {-1,0};
    for(ll i = 1;i<=n;i++){
        for(ll j = 1;j<=n;j++){
            for(ll x = 0;x<2;x++){
                ans = max(ans,{dp[i][j][x],i});
            }
        }
    }
    cout<<ans.fi<<endl;
    cout<<ans.sc<<endl;
	return (0-0);
}

Subtask #1
10.0 / 100.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 340 KB Output is 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 1 ms 468 KB Output isn't correct
6 Incorrect 2 ms 596 KB Output isn't correct
7 Incorrect 3 ms 596 KB Output isn't correct
8 Incorrect 3 ms 724 KB Output isn't correct
9 Incorrect 6 ms 724 KB Output isn't correct
10 Correct 6 ms 852 KB Output is correct
11 Incorrect 7 ms 852 KB Output isn't correct
12 Incorrect 32 ms 1824 KB Output isn't correct
13 Incorrect 86 ms 2820 KB Output isn't correct
14 Incorrect 191 ms 3652 KB Output isn't correct
15 Incorrect 465 ms 4376 KB Output isn't correct
16 Incorrect 470 ms 4496 KB Output isn't correct
17 Incorrect 456 ms 4544 KB Output isn't correct
18 Incorrect 352 ms 4556 KB Output isn't correct
19 Incorrect 563 ms 4496 KB Output isn't correct
20 Incorrect 527 ms 4500 KB Output isn't correct