oj.uz

Submission #466101

# Submission time Handle Problem Language Result Execution time Memory
466101 2021-08-17T22:46:51 Z urosk Awesome Arrowland Adventure (eJOI19_adventure) C++14
100 / 100
 159 ms 49644 KB 
// __builtin_popcount(x) broj bitova
// __builtin_popcountll(x) long long
#define here cerr<<"---------------------------\n"
#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 sz(a) int(a.size())
#define all(a) a.begin(),a.end()
#define rall(a) a.begin(),a.end(),greater<int>()
using namespace std;
void setIO(string inoutname)
{
	freopen((inoutname+".in").c_str(),"r",stdin);
    	freopen((inoutname+".out").c_str(),"w",stdout);
}

ll gcd(ll a, ll b)
{
   if(b==0) return a;
   if(a==0) return b;
   if(a>=b)  return gcd(a%b,b);
   return  gcd(a,b%a);
}
#define maxn 505
#define maxm 505
#define maxi 250005
ll a[maxn][maxn];
ll n,m;
vector<pll> g[maxi];
ll d[maxi];
map<char,map<char,ll> > c;
ll kod(ll x,ll y){
    return (x-1)*m + y;
}
bool valid(ll x,ll y){
    if(x==n&&y==m) return 1;
    if(x>=1&&x<=n&&y>=1&&y<=m&&a[x][y]!='X') return 1;
    return 0;
}
void tc(){
	ios_base::sync_with_stdio(false);cerr.tie(0);cout.tie(0);cin.tie(0);
    cin >> n >> m;
    for(ll i = 1;i<=n;i++){
        string s;
        cin >> s;
        for(ll j = 1;j<=m;j++) a[i][j] = s[j-1];
    }
    for(ll i = 1;i<=n;i++){
        for(ll j = 1;j<=m;j++){
            if(!valid(i,j)) continue;
            if(valid(i+1,j)){
                g[kod(i,j)].pb({kod(i+1,j),c[a[i][j]]['S']});
                g[kod(i+1,j)].pb({kod(i,j),c[a[i+1][j]]['N']});
            }
            if(valid(i-1,j)){
                g[kod(i,j)].pb({kod(i-1,j),c[a[i][j]]['N']});
                g[kod(i-1,j)].pb({kod(i,j),c[a[i-1][j]]['S']});
            }
            if(valid(i,j+1)){
                g[kod(i,j)].pb({kod(i,j+1),c[a[i][j]]['E']});
                g[kod(i,j+1)].pb({kod(i,j),c[a[i][j+1]]['W']});
            }
            if(valid(i,j-1)){
                g[kod(i,j)].pb({kod(i,j-1),c[a[i][j]]['W']});
                g[kod(i,j-1)].pb({kod(i,j),c[a[i][j-1]]['E']});
            }
        }
    }
    fill(d,d+maxi-1,llinf);
    d[1] = 0;
    priority_queue<pll> q;
    q.push({0,1});
    while(!q.empty()){
        ll u = q.top().sc;
        q.pop();
        for(pll p : g[u]){
            ll s = p.fi;
            ll w = p.sc;
            if(d[u]+w<d[s]){
                d[s] = d[u]+w;
                q.push({-d[s],s});
            }
        }
    }
    if(d[kod(n,m)]==llinf) cout<<-1<<endl;
    else cout<<d[kod(n,m)]<<endl;
}
int main(){
	ios_base::sync_with_stdio(false);cerr.tie(0);cout.tie(0);cin.tie(0);
	//setIO("lol");
    c['N']['E']=1;
    c['N']['S']=2;
    c['N']['W']=3;
    c['E']['S']=1;
    c['E']['W']=2;
    c['E']['N']=3;
    c['S']['W']=1;
    c['S']['N']=2;
    c['S']['E']=3;
    c['W']['N']=1;
    c['W']['E']=2;
    c['W']['S']=3;
	int t; t = 1;
	while(t--){
		tc();
	}
	return 0;
}

Compilation message

adventure.cpp: In function 'void setIO(std::string)':
adventure.cpp:24:9: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   24 |  freopen((inoutname+".in").c_str(),"r",stdin);
      |  ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
adventure.cpp:25:13: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   25 |      freopen((inoutname+".out").c_str(),"w",stdout);
      |      ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 8140 KB Output is correct
2 Correct 5 ms 8120 KB Output is correct
3 Correct 5 ms 8140 KB Output is correct
4 Correct 6 ms 8116 KB Output is correct
5 Correct 6 ms 8124 KB Output is correct
6 Correct 5 ms 8140 KB Output is correct
7 Correct 4 ms 8140 KB Output is correct
8 Correct 5 ms 8140 KB Output is correct
9 Correct 5 ms 8124 KB Output is correct
10 Correct 5 ms 8140 KB Output is correct

Subtask #2
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 8140 KB Output is correct
2 Correct 5 ms 8120 KB Output is correct
3 Correct 5 ms 8140 KB Output is correct
4 Correct 6 ms 8116 KB Output is correct
5 Correct 6 ms 8124 KB Output is correct
6 Correct 5 ms 8140 KB Output is correct
7 Correct 4 ms 8140 KB Output is correct
8 Correct 5 ms 8140 KB Output is correct
9 Correct 5 ms 8124 KB Output is correct
10 Correct 5 ms 8140 KB Output is correct
11 Correct 4 ms 8140 KB Output is correct
12 Correct 5 ms 8140 KB Output is correct
13 Correct 5 ms 8140 KB Output is correct
14 Correct 4 ms 8140 KB Output is correct
15 Correct 5 ms 8140 KB Output is correct
16 Correct 5 ms 8140 KB Output is correct
17 Correct 5 ms 8140 KB Output is correct
18 Correct 5 ms 8140 KB Output is correct
19 Correct 5 ms 8120 KB Output is correct
20 Correct 5 ms 8120 KB Output is correct

Subtask #3
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 8140 KB Output is correct
2 Correct 5 ms 8116 KB Output is correct
3 Correct 4 ms 8140 KB Output is correct
4 Correct 5 ms 8140 KB Output is correct

Subtask #4
16.0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 8160 KB Output is correct
2 Correct 5 ms 8120 KB Output is correct
3 Correct 5 ms 8140 KB Output is correct
4 Correct 5 ms 8140 KB Output is correct
5 Correct 5 ms 8248 KB Output is correct
6 Correct 6 ms 8268 KB Output is correct
7 Correct 5 ms 8120 KB Output is correct
8 Correct 5 ms 8116 KB Output is correct
9 Correct 5 ms 8140 KB Output is correct
10 Correct 5 ms 8140 KB Output is correct

Subtask #5
50.0 / 50.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 8140 KB Output is correct
2 Correct 5 ms 8120 KB Output is correct
3 Correct 5 ms 8140 KB Output is correct
4 Correct 6 ms 8116 KB Output is correct
5 Correct 6 ms 8124 KB Output is correct
6 Correct 5 ms 8140 KB Output is correct
7 Correct 4 ms 8140 KB Output is correct
8 Correct 5 ms 8140 KB Output is correct
9 Correct 5 ms 8124 KB Output is correct
10 Correct 5 ms 8140 KB Output is correct
11 Correct 4 ms 8140 KB Output is correct
12 Correct 5 ms 8140 KB Output is correct
13 Correct 5 ms 8140 KB Output is correct
14 Correct 4 ms 8140 KB Output is correct
15 Correct 5 ms 8140 KB Output is correct
16 Correct 5 ms 8140 KB Output is correct
17 Correct 5 ms 8140 KB Output is correct
18 Correct 5 ms 8140 KB Output is correct
19 Correct 5 ms 8120 KB Output is correct
20 Correct 5 ms 8120 KB Output is correct
21 Correct 4 ms 8140 KB Output is correct
22 Correct 5 ms 8116 KB Output is correct
23 Correct 4 ms 8140 KB Output is correct
24 Correct 5 ms 8140 KB Output is correct
25 Correct 5 ms 8160 KB Output is correct
26 Correct 5 ms 8120 KB Output is correct
27 Correct 5 ms 8140 KB Output is correct
28 Correct 5 ms 8140 KB Output is correct
29 Correct 5 ms 8248 KB Output is correct
30 Correct 6 ms 8268 KB Output is correct
31 Correct 5 ms 8120 KB Output is correct
32 Correct 5 ms 8116 KB Output is correct
33 Correct 5 ms 8140 KB Output is correct
34 Correct 5 ms 8140 KB Output is correct
35 Correct 15 ms 10636 KB Output is correct
36 Correct 5 ms 8396 KB Output is correct
37 Correct 21 ms 11240 KB Output is correct
38 Correct 20 ms 13424 KB Output is correct
39 Correct 132 ms 36240 KB Output is correct
40 Correct 142 ms 36036 KB Output is correct
41 Correct 89 ms 35952 KB Output is correct
42 Correct 134 ms 36160 KB Output is correct
43 Correct 159 ms 49644 KB Output is correct
44 Correct 102 ms 36076 KB Output is correct