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Submission #893373

# Submission time Handle Problem Language Result Execution time Memory
893373 2023-12-27T03:36:17 Z vjudge1 Airplane (NOI23_airplane) C++17
100 / 100
 299 ms 23796 KB 
#include<bits/stdc++.h>
using namespace std;
#define all(fl) fl.begin(),fl.end()
#define pb push_back
#define fi first
#define se second
#define for1(i,j,k) for(int i=j;i<=k;i++)
#define for2(i,j,k) for(int i=j;i>=k;i--)
#define for3(i,j,k,l) for(int i=j;i<=k;i+=l)
#define lb lower_bound
#define ub upper_bound
#define sz(a) (int)a.size()
#define pii pair<int,int>
#define pli pair<long long,int>
#define gcd __gcd
#define lcm(x,y) x*y/__gcd(x,y)
#define lastbit(i) __builtin_ctz(i)
#define pil pair<int,long long>
const int maxn=2e5+9;
const long long inf=1e15;
long long b[maxn];
vector<int>a[maxn];
int n;
struct cus{
int u;
long long val;
bool operator < (const cus &p)const {
return val>p.val;
}
};
vector<long long> cal(int s){
vector<long long>f(n+1);
vector<bool>vis(n+1);
for1(i,1,n)f[i]=inf;
f[s]=0;
priority_queue<cus>t;
t.push({s,0});
while (!t.empty()){
    auto u=t.top();
    t.pop();
    if (vis[u.u])continue;
    vis[u.u]=1;
    for (auto v:a[u.u]){
    if (f[v]>max(b[v],f[u.u]+1)){
    f[v]=max(b[v],f[u.u]+1);
    t.push({v,f[v]});
    }
    }
}
return f;
}
long long ans[maxn];
signed main(){
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    //freopen("temp.INP","r",stdin);
    //freopen("temp.OUT","w",stdout);
    int m;
    cin>>n>>m;
    for1(i,1,n)cin>>b[i];
    for1(i,1,m){
    int u,v;
    cin>>u>>v;
    a[u].pb(v);
    a[v].pb(u);
    }
    vector<long long>tmp=cal(1);
    for1(i,1,n){
    ans[i]+=tmp[i];
    }
    tmp=cal(n);
    long long vcl=inf;
    for1(i,1,n){
    if (abs(ans[i]-tmp[i])<=1)vcl=min(vcl,ans[i]+tmp[i]);
    }
    cout<<vcl;
}

Subtask #1
22.0 / 22.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 6492 KB Output is correct
2 Correct 59 ms 17688 KB Output is correct
3 Correct 85 ms 17476 KB Output is correct
4 Correct 60 ms 17492 KB Output is correct
5 Correct 78 ms 17492 KB Output is correct
6 Correct 61 ms 17556 KB Output is correct
7 Correct 61 ms 17632 KB Output is correct
8 Correct 1 ms 6488 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 6492 KB Output is correct
2 Correct 1 ms 6492 KB Output is correct
3 Correct 1 ms 6488 KB Output is correct
4 Correct 1 ms 6492 KB Output is correct
5 Correct 1 ms 6488 KB Output is correct
6 Correct 2 ms 6492 KB Output is correct
7 Correct 2 ms 6492 KB Output is correct
8 Correct 3 ms 6492 KB Output is correct
9 Correct 2 ms 6492 KB Output is correct
10 Correct 2 ms 6492 KB Output is correct
11 Correct 2 ms 6504 KB Output is correct
12 Correct 2 ms 6492 KB Output is correct
13 Correct 2 ms 6492 KB Output is correct
14 Correct 2 ms 6748 KB Output is correct
15 Correct 2 ms 6748 KB Output is correct
16 Correct 2 ms 6756 KB Output is correct
17 Correct 2 ms 6748 KB Output is correct
18 Correct 2 ms 6744 KB Output is correct

Subtask #3
31.0 / 31.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 6492 KB Output is correct
2 Correct 1 ms 6492 KB Output is correct
3 Correct 1 ms 6488 KB Output is correct
4 Correct 1 ms 6492 KB Output is correct
5 Correct 1 ms 6488 KB Output is correct
6 Correct 2 ms 6492 KB Output is correct
7 Correct 2 ms 6492 KB Output is correct
8 Correct 3 ms 6492 KB Output is correct
9 Correct 2 ms 6492 KB Output is correct
10 Correct 2 ms 6492 KB Output is correct
11 Correct 2 ms 6504 KB Output is correct
12 Correct 2 ms 6492 KB Output is correct
13 Correct 2 ms 6492 KB Output is correct
14 Correct 2 ms 6748 KB Output is correct
15 Correct 2 ms 6748 KB Output is correct
16 Correct 2 ms 6756 KB Output is correct
17 Correct 2 ms 6748 KB Output is correct
18 Correct 2 ms 6744 KB Output is correct
19 Correct 2 ms 6492 KB Output is correct
20 Correct 2 ms 6492 KB Output is correct
21 Correct 2 ms 6588 KB Output is correct
22 Correct 2 ms 6748 KB Output is correct
23 Correct 2 ms 6492 KB Output is correct
24 Correct 2 ms 6492 KB Output is correct
25 Correct 2 ms 6748 KB Output is correct
26 Correct 2 ms 6748 KB Output is correct
27 Correct 3 ms 6748 KB Output is correct
28 Correct 2 ms 6748 KB Output is correct
29 Correct 2 ms 6748 KB Output is correct
30 Correct 3 ms 6748 KB Output is correct

Subtask #4
37.0 / 37.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 6492 KB Output is correct
2 Correct 59 ms 17688 KB Output is correct
3 Correct 85 ms 17476 KB Output is correct
4 Correct 60 ms 17492 KB Output is correct
5 Correct 78 ms 17492 KB Output is correct
6 Correct 61 ms 17556 KB Output is correct
7 Correct 61 ms 17632 KB Output is correct
8 Correct 1 ms 6488 KB Output is correct
9 Correct 1 ms 6492 KB Output is correct
10 Correct 1 ms 6492 KB Output is correct
11 Correct 1 ms 6488 KB Output is correct
12 Correct 1 ms 6492 KB Output is correct
13 Correct 1 ms 6488 KB Output is correct
14 Correct 2 ms 6492 KB Output is correct
15 Correct 2 ms 6492 KB Output is correct
16 Correct 3 ms 6492 KB Output is correct
17 Correct 2 ms 6492 KB Output is correct
18 Correct 2 ms 6492 KB Output is correct
19 Correct 2 ms 6504 KB Output is correct
20 Correct 2 ms 6492 KB Output is correct
21 Correct 2 ms 6492 KB Output is correct
22 Correct 2 ms 6748 KB Output is correct
23 Correct 2 ms 6748 KB Output is correct
24 Correct 2 ms 6756 KB Output is correct
25 Correct 2 ms 6748 KB Output is correct
26 Correct 2 ms 6744 KB Output is correct
27 Correct 2 ms 6492 KB Output is correct
28 Correct 2 ms 6492 KB Output is correct
29 Correct 2 ms 6588 KB Output is correct
30 Correct 2 ms 6748 KB Output is correct
31 Correct 2 ms 6492 KB Output is correct
32 Correct 2 ms 6492 KB Output is correct
33 Correct 2 ms 6748 KB Output is correct
34 Correct 2 ms 6748 KB Output is correct
35 Correct 3 ms 6748 KB Output is correct
36 Correct 2 ms 6748 KB Output is correct
37 Correct 2 ms 6748 KB Output is correct
38 Correct 3 ms 6748 KB Output is correct
39 Correct 147 ms 17748 KB Output is correct
40 Correct 103 ms 17992 KB Output is correct
41 Correct 89 ms 17744 KB Output is correct
42 Correct 82 ms 17752 KB Output is correct
43 Correct 85 ms 17488 KB Output is correct
44 Correct 107 ms 17704 KB Output is correct
45 Correct 87 ms 17724 KB Output is correct
46 Correct 91 ms 17748 KB Output is correct
47 Correct 91 ms 17700 KB Output is correct
48 Correct 94 ms 17744 KB Output is correct
49 Correct 132 ms 17744 KB Output is correct
50 Correct 108 ms 17632 KB Output is correct
51 Correct 138 ms 17748 KB Output is correct
52 Correct 199 ms 20160 KB Output is correct
53 Correct 249 ms 20240 KB Output is correct
54 Correct 153 ms 20072 KB Output is correct
55 Correct 253 ms 20064 KB Output is correct
56 Correct 214 ms 22992 KB Output is correct
57 Correct 264 ms 23308 KB Output is correct
58 Correct 286 ms 22976 KB Output is correct
59 Correct 291 ms 22952 KB Output is correct
60 Correct 213 ms 23092 KB Output is correct
61 Correct 231 ms 23132 KB Output is correct
62 Correct 196 ms 22912 KB Output is correct
63 Correct 235 ms 23128 KB Output is correct
64 Correct 202 ms 23796 KB Output is correct
65 Correct 212 ms 23004 KB Output is correct
66 Correct 250 ms 23452 KB Output is correct
67 Correct 299 ms 22976 KB Output is correct