#pragma GCC optimize("Ofast,unroll-loops")
//#pragma GCC optimize("conserve-stack")
#include<bits/stdc++.h>
//#define int long long
#define ll long long
#define down cout<<'\n';
#define debug cout<<" cucuucucuuu",down
#define NHP ios_base::sync_with_stdio(0);cout.tie(0);cin.tie(0);
#define modwwe int t;cin>>t; while(t--)
#define bit(i,j) (i>>j&1)
#define sobit(a) __builtin_popcountll(a)
#define task "test"
#define fin(x) freopen(x".inp","r",stdin)
#define fou(x) freopen(x".out","w",stdout)
#define pb push_back
#define mask(i) (1<<i)
#define checktime cerr << (double)clock() / CLOCKS_PER_SEC * 1000 << " ms";
using namespace std;
#define getchar_unlocked getchar
inline int scan()
{
char c = getchar_unlocked();
int x = 0;
while (c < '0' || c > '9')
{
c = getchar_unlocked();
}
while (c >= '0' && c <= '9')
{
x = (x << 1) + (x << 3) + c - '0';
c = getchar_unlocked();
}
return x;
};
void phongbeo();
const int inf = 1e18;
const int mod2 = 1e9 + 7;
const int mod1 = 998244353;
int add(int x,int y)
{
if(x+y>=mod2) x-=mod2;
return x+y;
}
struct icd
{
long double a;
int b;
};
struct ib
{
int a;
int b;
};
struct ic
{
int a, b, c, d;
};
struct ie
{
int a, b, c, d, e;
};
int n, m, s1, s2, s4, s3, sf, k, s5, s6, mx, s7, s8, s9, mx2, res, dem2 = 0, dem = 0, s33, dem3, dem4, mid, l2, r2, center;
int i, s10, s12,k1,k2,k3,s11,limit,w,l,r,last,root;
int kk;
int el = 19;
main()
{
if(fopen(task".inp","r"))
{
fin(task);
fou(task);
}
NHP
/// cin>>s1;
///modwwe
phongbeo();
// checktime
}
struct cmp{
bool operator()(ib a,ib b)
{
return a.a>b.a;
}
};
int dist1[200001];
int distn[200001];
int a[200001];
vector<int> v[200001];
priority_queue<ib,vector<ib>,cmp>p ;
void dis(int gg,int c[])
{
p.push({0,gg});
while(!p.empty())
{
ib x=p.top();
p.pop();
if(c[x.b]!=-1) continue;
c[x.b]=max(a[x.b],x.a);
for(auto f:v[x.b])
if(c[f]==-1)
p.push({c[x.b]+1,f});
}
}
void phongbeo()
{
cin>>n>>m;
for(int i=1;i<=n;i++)
cin>>a[i];
for(int i=1;i<=m;i++)
cin>>l>>r,v[l].pb(r),v[r].pb(l);
memset(dist1,-1,sizeof dist1);
memset(distn,-1,sizeof distn);
dis(1,dist1);
dis(n,distn);
s4=inf;
for(int i=1;i<=n;i++)
{
s4=min(s4,max(dist1[i],distn[i])*2);
for(auto f:v[i])
s4=min(s4,max(dist1[i],distn[f])*2+1);
}
cout<<s4;
}
Compilation message
Main.cpp:37:17: warning: overflow in conversion from 'double' to 'int' changes value from '1.0e+18' to '2147483647' [-Woverflow]
37 | const int inf = 1e18;
| ^~~~
Main.cpp:70:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
70 | main()
| ^~~~
Main.cpp: In function 'int main()':
Main.cpp:13:23: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
13 | #define fin(x) freopen(x".inp","r",stdin)
| ~~~~~~~^~~~~~~~~~~~~~~~~~~
Main.cpp:74:9: note: in expansion of macro 'fin'
74 | fin(task);
| ^~~
Main.cpp:14:23: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
14 | #define fou(x) freopen(x".out","w",stdout)
| ~~~~~~~^~~~~~~~~~~~~~~~~~~~
Main.cpp:75:9: note: in expansion of macro 'fou'
75 | fou(task);
| ^~~
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
3 ms |
7248 KB |
Output is correct |
2 |
Correct |
49 ms |
13756 KB |
Output is correct |
3 |
Correct |
52 ms |
13640 KB |
Output is correct |
4 |
Correct |
54 ms |
13596 KB |
Output is correct |
5 |
Correct |
55 ms |
13660 KB |
Output is correct |
6 |
Correct |
54 ms |
13704 KB |
Output is correct |
7 |
Correct |
59 ms |
13696 KB |
Output is correct |
8 |
Correct |
2 ms |
7504 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
2 ms |
7264 KB |
Output is correct |
2 |
Correct |
2 ms |
7504 KB |
Output is correct |
3 |
Correct |
2 ms |
7504 KB |
Output is correct |
4 |
Correct |
2 ms |
7504 KB |
Output is correct |
5 |
Correct |
2 ms |
7344 KB |
Output is correct |
6 |
Correct |
3 ms |
7504 KB |
Output is correct |
7 |
Correct |
3 ms |
7368 KB |
Output is correct |
8 |
Correct |
3 ms |
7504 KB |
Output is correct |
9 |
Correct |
3 ms |
7504 KB |
Output is correct |
10 |
Correct |
3 ms |
7504 KB |
Output is correct |
11 |
Correct |
3 ms |
7548 KB |
Output is correct |
12 |
Correct |
3 ms |
7504 KB |
Output is correct |
13 |
Correct |
3 ms |
7504 KB |
Output is correct |
14 |
Correct |
4 ms |
7524 KB |
Output is correct |
15 |
Correct |
4 ms |
7504 KB |
Output is correct |
16 |
Correct |
4 ms |
7504 KB |
Output is correct |
17 |
Correct |
4 ms |
7600 KB |
Output is correct |
18 |
Correct |
4 ms |
7504 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
2 ms |
7264 KB |
Output is correct |
2 |
Correct |
2 ms |
7504 KB |
Output is correct |
3 |
Correct |
2 ms |
7504 KB |
Output is correct |
4 |
Correct |
2 ms |
7504 KB |
Output is correct |
5 |
Correct |
2 ms |
7344 KB |
Output is correct |
6 |
Correct |
3 ms |
7504 KB |
Output is correct |
7 |
Correct |
3 ms |
7368 KB |
Output is correct |
8 |
Correct |
3 ms |
7504 KB |
Output is correct |
9 |
Correct |
3 ms |
7504 KB |
Output is correct |
10 |
Correct |
3 ms |
7504 KB |
Output is correct |
11 |
Correct |
3 ms |
7548 KB |
Output is correct |
12 |
Correct |
3 ms |
7504 KB |
Output is correct |
13 |
Correct |
3 ms |
7504 KB |
Output is correct |
14 |
Correct |
4 ms |
7524 KB |
Output is correct |
15 |
Correct |
4 ms |
7504 KB |
Output is correct |
16 |
Correct |
4 ms |
7504 KB |
Output is correct |
17 |
Correct |
4 ms |
7600 KB |
Output is correct |
18 |
Correct |
4 ms |
7504 KB |
Output is correct |
19 |
Correct |
4 ms |
7760 KB |
Output is correct |
20 |
Correct |
4 ms |
7504 KB |
Output is correct |
21 |
Correct |
3 ms |
7504 KB |
Output is correct |
22 |
Correct |
3 ms |
7580 KB |
Output is correct |
23 |
Correct |
3 ms |
7504 KB |
Output is correct |
24 |
Correct |
4 ms |
7504 KB |
Output is correct |
25 |
Correct |
3 ms |
7676 KB |
Output is correct |
26 |
Correct |
3 ms |
7504 KB |
Output is correct |
27 |
Correct |
4 ms |
7620 KB |
Output is correct |
28 |
Correct |
4 ms |
7504 KB |
Output is correct |
29 |
Correct |
5 ms |
7504 KB |
Output is correct |
30 |
Correct |
4 ms |
7504 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
3 ms |
7248 KB |
Output is correct |
2 |
Correct |
49 ms |
13756 KB |
Output is correct |
3 |
Correct |
52 ms |
13640 KB |
Output is correct |
4 |
Correct |
54 ms |
13596 KB |
Output is correct |
5 |
Correct |
55 ms |
13660 KB |
Output is correct |
6 |
Correct |
54 ms |
13704 KB |
Output is correct |
7 |
Correct |
59 ms |
13696 KB |
Output is correct |
8 |
Correct |
2 ms |
7504 KB |
Output is correct |
9 |
Correct |
2 ms |
7264 KB |
Output is correct |
10 |
Correct |
2 ms |
7504 KB |
Output is correct |
11 |
Correct |
2 ms |
7504 KB |
Output is correct |
12 |
Correct |
2 ms |
7504 KB |
Output is correct |
13 |
Correct |
2 ms |
7344 KB |
Output is correct |
14 |
Correct |
3 ms |
7504 KB |
Output is correct |
15 |
Correct |
3 ms |
7368 KB |
Output is correct |
16 |
Correct |
3 ms |
7504 KB |
Output is correct |
17 |
Correct |
3 ms |
7504 KB |
Output is correct |
18 |
Correct |
3 ms |
7504 KB |
Output is correct |
19 |
Correct |
3 ms |
7548 KB |
Output is correct |
20 |
Correct |
3 ms |
7504 KB |
Output is correct |
21 |
Correct |
3 ms |
7504 KB |
Output is correct |
22 |
Correct |
4 ms |
7524 KB |
Output is correct |
23 |
Correct |
4 ms |
7504 KB |
Output is correct |
24 |
Correct |
4 ms |
7504 KB |
Output is correct |
25 |
Correct |
4 ms |
7600 KB |
Output is correct |
26 |
Correct |
4 ms |
7504 KB |
Output is correct |
27 |
Correct |
4 ms |
7760 KB |
Output is correct |
28 |
Correct |
4 ms |
7504 KB |
Output is correct |
29 |
Correct |
3 ms |
7504 KB |
Output is correct |
30 |
Correct |
3 ms |
7580 KB |
Output is correct |
31 |
Correct |
3 ms |
7504 KB |
Output is correct |
32 |
Correct |
4 ms |
7504 KB |
Output is correct |
33 |
Correct |
3 ms |
7676 KB |
Output is correct |
34 |
Correct |
3 ms |
7504 KB |
Output is correct |
35 |
Correct |
4 ms |
7620 KB |
Output is correct |
36 |
Correct |
4 ms |
7504 KB |
Output is correct |
37 |
Correct |
5 ms |
7504 KB |
Output is correct |
38 |
Correct |
4 ms |
7504 KB |
Output is correct |
39 |
Correct |
81 ms |
13640 KB |
Output is correct |
40 |
Correct |
64 ms |
13648 KB |
Output is correct |
41 |
Correct |
83 ms |
13640 KB |
Output is correct |
42 |
Correct |
72 ms |
13796 KB |
Output is correct |
43 |
Correct |
70 ms |
13620 KB |
Output is correct |
44 |
Correct |
69 ms |
13716 KB |
Output is correct |
45 |
Correct |
74 ms |
13640 KB |
Output is correct |
46 |
Correct |
72 ms |
13640 KB |
Output is correct |
47 |
Correct |
69 ms |
13700 KB |
Output is correct |
48 |
Correct |
71 ms |
13640 KB |
Output is correct |
49 |
Correct |
91 ms |
13768 KB |
Output is correct |
50 |
Correct |
77 ms |
13652 KB |
Output is correct |
51 |
Correct |
87 ms |
13640 KB |
Output is correct |
52 |
Correct |
146 ms |
15560 KB |
Output is correct |
53 |
Correct |
133 ms |
15552 KB |
Output is correct |
54 |
Correct |
125 ms |
15544 KB |
Output is correct |
55 |
Correct |
141 ms |
15552 KB |
Output is correct |
56 |
Correct |
188 ms |
18876 KB |
Output is correct |
57 |
Correct |
184 ms |
19000 KB |
Output is correct |
58 |
Correct |
234 ms |
18876 KB |
Output is correct |
59 |
Correct |
243 ms |
18876 KB |
Output is correct |
60 |
Correct |
162 ms |
18876 KB |
Output is correct |
61 |
Correct |
200 ms |
18844 KB |
Output is correct |
62 |
Correct |
161 ms |
18876 KB |
Output is correct |
63 |
Correct |
172 ms |
18884 KB |
Output is correct |
64 |
Correct |
202 ms |
18888 KB |
Output is correct |
65 |
Correct |
187 ms |
18848 KB |
Output is correct |
66 |
Correct |
194 ms |
18876 KB |
Output is correct |
67 |
Correct |
206 ms |
18880 KB |
Output is correct |