제출 #1038337

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
1038337		vjudge1	Cubeword (CEOI19_cubeword)	C++17	21 / 100	518 ms	18768 KiB

cubeword

#include <bits/stdc++.h>
#pragma GCC optimize("Ofast")
#pragma GCC target("avx2")
#pragma GCC optimization ("O3")
#pragma GCC optimization ("unroll-loops")
#pragma GCC target("popcnt")
using namespace std;

using ll = long long;
using ull = unsigned long long;
using lld = long double;
using vi = vector<int>;
using vll = vector<ll>;
using ii = pair<int,int>;
using pll = pair<ll, ll>;
using vii = vector<ii>;
using vpll = vector<pll>;

#define endl '\n'
#define all(x) x.begin(),x.end()
#define lsb(x) x&(-x)
#define gcd(a,b) __gcd(a,b)
#define sz(x) (int)x.size()
#define mp make_pair
#define pb push_back
#define fi first
#define se second
#define fls cout.flush()

#define fore(i,l,r) for(auto i=l;i<r;i++)
#define fo(i,n) fore(i,0,n)
#define forex(i,r,l) for(auto i=r; i>=l;i--)
#define ffo(i,n) forex(i,n-1,0)

bool cmin(int &a, int b){if(b<a){a=b;return 1;}return 0;}
bool cmax(int &a, int b){if(b>a){a=b;return 1;}return 0;}
void valid(ll in){cout<<((in)?"YES\n":"NO\n");}
ll lcm(ll a, ll b){return (a/gcd(a,b))*b;}
ll gauss(ll n){return (n*(n+1))/2;}
const int N =1e5+7,mod= 998244353;
string s[N];
vi act;
ll n,ans=0;
set<string> st[6][6][11];
void solve(int i){
    if(i==8){
        fore(tam, 3, 11){
            ll aux=1;
            fo(i,4)aux=(aux*sz(st[act[i]][act[(i+1)%4]][tam]))%mod;
            fo(i,4)aux=(aux*sz(st[act[i]][act[i+4]][tam]))%mod;
            fo(i,4)aux=(aux*sz(st[act[i+4]][act[(i+1)%4+4]][tam]))%mod;
            ans=(ans+aux)%mod;
        }
        return;
    }
    fo(v, 6){
        act.pb(v);
        solve(i+1);
        act.pop_back();
    }
}
void test_case(){
    cin>>n;
    fo(i,n){
        cin>>s[i];
        st[s[i][0]-'a'][s[i].back()-'a'][sz(s[i])].insert(s[i]);
        reverse(all(s[i]));
        st[s[i][0]-'a'][s[i].back()-'a'][sz(s[i])].insert(s[i]);
    }
    solve(0);
    cout<<ans<<endl;
}
int main(){cin.tie(0)->sync_with_stdio(0);
    int t=1;
    // cin >> t;
    while(t--)test_case();
}

컴파일 시 표준 에러 (stderr) 메시지

cubeword.cpp:4: warning: ignoring '#pragma GCC optimization' [-Wunknown-pragmas]
    4 | #pragma GCC optimization ("O3")
      | 
cubeword.cpp:5: warning: ignoring '#pragma GCC optimization' [-Wunknown-pragmas]
    5 | #pragma GCC optimization ("unroll-loops")
      |

• Subtask 1: 21 / 21
• Subtask 2: 0 / 29
• Subtask 3: 0 / 34
• Subtask 4: 0 / 16