Submission #651559

#	Time	Username	Problem	Language	Result	Execution time	Memory
651559		edogawa_something	Patkice (COCI20_patkice)	C++17	30 / 50	1 ms	340 KiB

patkice

#include<bits/stdc++.h>
#include<ext/pb_ds/assoc_container.hpp>
#include<ext/pb_ds/tree_policy.hpp>
using namespace std;
using namespace __gnu_pbds;
typedef long long ll;
typedef long double ld;
typedef string st;
typedef bool bl;
typedef vector<ll> vii;
typedef pair<ll,ll> pii;
typedef vector<pii> vpi;
#define pu push
#define ordered_set tree<ll,null_type,less<ll>,rb_tree_tag,tree_order_statistics_node_update>
#define fast ios_base::sync_with_stdio(0);cin.tie();
#define test ll qqqqq;cin>>qqqqq;while(qqqqq--)
#define F first
#define S second
#define forn(i,n) for(ll i=0;i<n;i++)
#define forx(i,j,n) for(ll i=j;i<n;i++)
#define pb push_back
#define pob pop_back
#define all(v) v.begin(),v.end()
#define lb lower_bound
#define ub upper_bound
#define pof pop_front
#define pow powww
const ll dx[]{1,0,-1,0};
const ll dy[]{0,-1,0,1};
const ll inf=2e18;
const ll mod=1e9+7;
const ll M=1e6+1;
const ll MM=202;
const ll MMM=101;
const ld pi=acos(-1);
const ll mod1=1000000321;
char c[MM][MM];
ll n,dir,m,len=inf,curlen;
pii ind;
bl vis[MM][MM];
bl can(ll d){
    pii cur=ind;
    curlen=0;
    forn(i,n)
    forn(j,m)
    vis[i][j]=0;
    while(c[cur.F][cur.S]!='.'){
        char cc=c[cur.F][cur.S];
        if(vis[cur.F][cur.S])
        return 0;
        vis[cur.F][cur.S]=1;
        if(cc=='o')
        cur.F+=dx[d],cur.S+=dy[d];
        else if(cc=='^')
        cur.F--;
        else if(cc=='>')
        cur.S++;
        else if(cc=='v')
        cur.F++;
        else if(cc=='<')
        cur.S--;
        else if(cc=='.')
        return 0;
        else{
            curlen++;
            return 1;
        }
        curlen++;
    }
    return 0;
}
int main(){
    fast
    cin>>n>>m;
    forn(i,n)
    forn(j,m){
    cin>>c[i][j];
    if(c[i][j]=='o')
    ind={i,j};
    }
    bl chk=0;
    forn(i,4){
        if(can(i)&&curlen<=len)
        chk=1,dir=i,len=curlen;
    }
    if(!chk)
    cout<<":(";
    else{
        cout<<":)\n";
        if(dir==0)
        cout<<'S';
        else if(dir==1)
        cout<<'W';
        else if(dir==2)
        cout<<'N';
        else
        cout<<'E';
    }
    return 0;
}

• Subtask 1: 30 / 30
• Subtask 2: 0 / 20