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Submission #735622

# Submission time Handle Problem Language Result Execution time Memory
735622 2023-05-04T12:07:46 Z grogu Sailing Race (CEOI12_race) C++14
10 / 100
 412 ms 4496 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]);
    for(ll tr = r;tr!=l;tr = nx[tr][x^1])
    dp[l][r][x] = max(dp[l][r][x],dp[l][tr][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 1 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 2 ms 468 KB Output isn't correct
6 Incorrect 1 ms 596 KB Output isn't correct
7 Incorrect 2 ms 596 KB Output isn't correct
8 Incorrect 3 ms 724 KB Output isn't correct
9 Incorrect 3 ms 724 KB Output isn't correct
10 Correct 6 ms 896 KB Output is correct
11 Incorrect 4 ms 852 KB Output isn't correct
12 Incorrect 25 ms 1840 KB Output isn't correct
13 Incorrect 82 ms 2816 KB Output isn't correct
14 Incorrect 193 ms 3668 KB Output isn't correct
15 Incorrect 344 ms 4492 KB Output isn't correct
16 Incorrect 363 ms 4440 KB Output isn't correct
17 Incorrect 387 ms 4436 KB Output isn't correct
18 Incorrect 412 ms 4496 KB Output isn't correct
19 Incorrect 409 ms 4376 KB Output isn't correct
20 Incorrect 360 ms 4432 KB Output isn't correct