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Submission #735597

# Submission time Handle Problem Language Result Execution time Memory
735597 2023-05-04T11:40:45 Z grogu Sailing Race (CEOI12_race) C++14
10 / 100
 20 ms 4692 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] = -llinf;
    if(d[l][r]) dp[l][r][x] = max(dp[l][r][x],1 + dp[r][nx[l][x]][x^1]);
    dp[l][r][x] = max(dp[l][r][x],dp[l][nx[r][1]][x]);
}
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 1 ms 564 KB Output isn't correct
7 Incorrect 2 ms 724 KB Output isn't correct
8 Incorrect 1 ms 692 KB Output isn't correct
9 Incorrect 1 ms 724 KB Output isn't correct
10 Correct 3 ms 852 KB Output is correct
11 Incorrect 2 ms 852 KB Output isn't correct
12 Incorrect 3 ms 1748 KB Output isn't correct
13 Incorrect 5 ms 2772 KB Output isn't correct
14 Incorrect 6 ms 3668 KB Output isn't correct
15 Incorrect 11 ms 4568 KB Output isn't correct
16 Incorrect 13 ms 4564 KB Output isn't correct
17 Incorrect 12 ms 4564 KB Output isn't correct
18 Incorrect 8 ms 4436 KB Output isn't correct
19 Incorrect 16 ms 4680 KB Output isn't correct
20 Incorrect 20 ms 4692 KB Output isn't correct