oj.uz

Submission #1104218

# Submission time Handle Problem Language Result Execution time Memory
1104218 2024-10-23T09:24:23 Z 8pete8 Airplane (NOI23_airplane) C++17
100 / 100
 313 ms 43164 KB 
#include<iostream>
#include<stack>
#include<map>
#include<vector>
#include<string>
#include<cassert>
#include<unordered_map>
#include <queue>
#include <cstdint>
#include<cstring>
#include<limits.h>
#include<cmath>
#include<set>
#include<algorithm>
#include <iomanip>
#include<numeric>
#include<bitset>
using namespace std;
#define ll long long
#define f first
#define s second
#define pii pair<int,int>
#define ppii pair<int,pii>
#define vi vector<int>
#define pb push_back
#define all(x) x.begin(),x.end()
#define rall(x) x.rbegin(),x.rend()
#define F(n) for(int i=0;i<n;i++)
#define lb lower_bound
#define ub upper_bound
#define fastio ios::sync_with_stdio(false);cin.tie(NULL);
#pragma GCC optimize ("03,unroll-lopps")
#define int long long
using namespace std;
const int mod=998244353,mxn=5e5+5,inf=1e18,minf=-1e18,lg=20;
//#undef int
int n,k,m,q;
void setIO(string name){		
	ios_base::sync_with_stdio(0); cin.tie(0);		
	freopen((name+".in").c_str(),"r",stdin);		
	freopen((name+".out").c_str(),"w",stdout);	
}
vector<int>adj[mxn+10];
int val[mxn+10];
vector<int>solve(int st){
	vector<int>dist(n+1,inf),last(n+1,-1);
	priority_queue<pii,vector<pii>,greater<pii>>pq;
	pq.push({0,st});
	dist[st]=0;
	while(!pq.empty()){
		int cur=pq.top().s,cost=pq.top().f;
		pq.pop();
		if(dist[cur]!=cost||last[cur]==cost)continue;
		last[cur]=cost;
		for(auto i:adj[cur])if(dist[i]>max(val[i],dist[cur]+1)){
			dist[i]=max(val[i],dist[cur]+1);
			pq.push({dist[i],i});
		}
	}
	return dist;
}
int32_t main(){
	fastio
	cin>>n>>m;
	for(int i=1;i<=n;i++)cin>>val[i];
	for(int i=0;i<m;i++){
		int a,b;cin>>a>>b;
		adj[a].pb(b);
		adj[b].pb(a);
	}
	vector<int>dist1=solve(1),dist2=solve(n);
	int ans=inf;
	for(int i=1;i<=n;i++){
		ans=min(ans,max(dist1[i],dist2[i])*2);
		for(auto j:adj[i])ans=min(ans,max(dist1[i],dist2[j])*2+1);
	}
	cout<<ans;
}
/*

*/

Compilation message

Main.cpp:32:40: warning: bad option '-funroll-lopps' to pragma 'optimize' [-Wpragmas]
   32 | #pragma GCC optimize ("03,unroll-lopps")
      |                                        ^
Main.cpp:38:23: warning: bad option '-funroll-lopps' to attribute 'optimize' [-Wattributes]
   38 | void setIO(string name){
      |                       ^
Main.cpp:45:24: warning: bad option '-funroll-lopps' to attribute 'optimize' [-Wattributes]
   45 | vector<int>solve(int st){
      |                        ^
Main.cpp:62:14: warning: bad option '-funroll-lopps' to attribute 'optimize' [-Wattributes]
   62 | int32_t main(){
      |              ^
Main.cpp: In function 'void setIO(std::string)':
Main.cpp:40:9: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   40 |  freopen((name+".in").c_str(),"r",stdin);
      |  ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Main.cpp:41:9: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   41 |  freopen((name+".out").c_str(),"w",stdout);
      |  ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Subtask #1
22.0 / 22.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 13648 KB Output is correct
2 Correct 62 ms 29672 KB Output is correct
3 Correct 63 ms 30012 KB Output is correct
4 Correct 64 ms 29996 KB Output is correct
5 Correct 67 ms 30448 KB Output is correct
6 Correct 66 ms 30508 KB Output is correct
7 Correct 66 ms 30508 KB Output is correct
8 Correct 3 ms 13648 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 13648 KB Output is correct
2 Correct 4 ms 13648 KB Output is correct
3 Correct 4 ms 13772 KB Output is correct
4 Correct 4 ms 13648 KB Output is correct
5 Correct 4 ms 13648 KB Output is correct
6 Correct 4 ms 13904 KB Output is correct
7 Correct 4 ms 14032 KB Output is correct
8 Correct 5 ms 13904 KB Output is correct
9 Correct 5 ms 13904 KB Output is correct
10 Correct 4 ms 13904 KB Output is correct
11 Correct 5 ms 13904 KB Output is correct
12 Correct 5 ms 13904 KB Output is correct
13 Correct 7 ms 13904 KB Output is correct
14 Correct 5 ms 13904 KB Output is correct
15 Correct 6 ms 14172 KB Output is correct
16 Correct 5 ms 14328 KB Output is correct
17 Correct 5 ms 14160 KB Output is correct
18 Correct 3 ms 13648 KB Output is correct

Subtask #3
31.0 / 31.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 13648 KB Output is correct
2 Correct 4 ms 13648 KB Output is correct
3 Correct 4 ms 13772 KB Output is correct
4 Correct 4 ms 13648 KB Output is correct
5 Correct 4 ms 13648 KB Output is correct
6 Correct 4 ms 13904 KB Output is correct
7 Correct 4 ms 14032 KB Output is correct
8 Correct 5 ms 13904 KB Output is correct
9 Correct 5 ms 13904 KB Output is correct
10 Correct 4 ms 13904 KB Output is correct
11 Correct 5 ms 13904 KB Output is correct
12 Correct 5 ms 13904 KB Output is correct
13 Correct 7 ms 13904 KB Output is correct
14 Correct 5 ms 13904 KB Output is correct
15 Correct 6 ms 14172 KB Output is correct
16 Correct 5 ms 14328 KB Output is correct
17 Correct 5 ms 14160 KB Output is correct
18 Correct 3 ms 13648 KB Output is correct
19 Correct 5 ms 13904 KB Output is correct
20 Correct 4 ms 13904 KB Output is correct
21 Correct 5 ms 13904 KB Output is correct
22 Correct 5 ms 13904 KB Output is correct
23 Correct 4 ms 14020 KB Output is correct
24 Correct 4 ms 13904 KB Output is correct
25 Correct 5 ms 13948 KB Output is correct
26 Correct 6 ms 14172 KB Output is correct
27 Correct 5 ms 13904 KB Output is correct
28 Correct 5 ms 14160 KB Output is correct
29 Correct 5 ms 14416 KB Output is correct
30 Correct 6 ms 14336 KB Output is correct

Subtask #4
37.0 / 37.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 13648 KB Output is correct
2 Correct 62 ms 29672 KB Output is correct
3 Correct 63 ms 30012 KB Output is correct
4 Correct 64 ms 29996 KB Output is correct
5 Correct 67 ms 30448 KB Output is correct
6 Correct 66 ms 30508 KB Output is correct
7 Correct 66 ms 30508 KB Output is correct
8 Correct 3 ms 13648 KB Output is correct
9 Correct 4 ms 13648 KB Output is correct
10 Correct 4 ms 13648 KB Output is correct
11 Correct 4 ms 13772 KB Output is correct
12 Correct 4 ms 13648 KB Output is correct
13 Correct 4 ms 13648 KB Output is correct
14 Correct 4 ms 13904 KB Output is correct
15 Correct 4 ms 14032 KB Output is correct
16 Correct 5 ms 13904 KB Output is correct
17 Correct 5 ms 13904 KB Output is correct
18 Correct 4 ms 13904 KB Output is correct
19 Correct 5 ms 13904 KB Output is correct
20 Correct 5 ms 13904 KB Output is correct
21 Correct 7 ms 13904 KB Output is correct
22 Correct 5 ms 13904 KB Output is correct
23 Correct 6 ms 14172 KB Output is correct
24 Correct 5 ms 14328 KB Output is correct
25 Correct 5 ms 14160 KB Output is correct
26 Correct 3 ms 13648 KB Output is correct
27 Correct 5 ms 13904 KB Output is correct
28 Correct 4 ms 13904 KB Output is correct
29 Correct 5 ms 13904 KB Output is correct
30 Correct 5 ms 13904 KB Output is correct
31 Correct 4 ms 14020 KB Output is correct
32 Correct 4 ms 13904 KB Output is correct
33 Correct 5 ms 13948 KB Output is correct
34 Correct 6 ms 14172 KB Output is correct
35 Correct 5 ms 13904 KB Output is correct
36 Correct 5 ms 14160 KB Output is correct
37 Correct 5 ms 14416 KB Output is correct
38 Correct 6 ms 14336 KB Output is correct
39 Correct 141 ms 32044 KB Output is correct
40 Correct 118 ms 31044 KB Output is correct
41 Correct 126 ms 31532 KB Output is correct
42 Correct 129 ms 31276 KB Output is correct
43 Correct 109 ms 31348 KB Output is correct
44 Correct 102 ms 31280 KB Output is correct
45 Correct 104 ms 31276 KB Output is correct
46 Correct 116 ms 31280 KB Output is correct
47 Correct 116 ms 31276 KB Output is correct
48 Correct 98 ms 31304 KB Output is correct
49 Correct 142 ms 32000 KB Output is correct
50 Correct 121 ms 31796 KB Output is correct
51 Correct 127 ms 31800 KB Output is correct
52 Correct 222 ms 37644 KB Output is correct
53 Correct 171 ms 36716 KB Output is correct
54 Correct 174 ms 36840 KB Output is correct
55 Correct 231 ms 37012 KB Output is correct
56 Correct 258 ms 42652 KB Output is correct
57 Correct 242 ms 41940 KB Output is correct
58 Correct 240 ms 42876 KB Output is correct
59 Correct 256 ms 42860 KB Output is correct
60 Correct 239 ms 43164 KB Output is correct
61 Correct 313 ms 42396 KB Output is correct
62 Correct 286 ms 41688 KB Output is correct
63 Correct 245 ms 41884 KB Output is correct
64 Correct 215 ms 41628 KB Output is correct
65 Correct 258 ms 41876 KB Output is correct
66 Correct 270 ms 41884 KB Output is correct
67 Correct 274 ms 41884 KB Output is correct