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Submission #848577

# Submission time Handle Problem Language Result Execution time Memory
848577 2023-09-13T00:28:45 Z Edu175 Longest Trip (IOI23_longesttrip) C++17
85 / 100
 15 ms 1112 KB 
#include "longesttrip.h"
#include <bits/stdc++.h>
#define pb push_back
#define fst first
#define snd second
#define fore(i,a,b) for(ll i=a,ggdem=b;i<ggdem;++i)
#define SZ(x) ((int)x.size())
#define ALL(x) x.begin(),x.end()
#define mset(a,v) memset((a),(v),sizeof(a))
#define FIN ios::sync_with_stdio(0);cin.tie(0);cout.tie(0)
#define imp(v) for(auto messi:v)cout<<messi<<" "; cout<<"\n"
using namespace std;
typedef int ll;
typedef pair<ll,ll> ii;
#define ask are_connected

ll n,d;

ll find(vector<ll>&a,vector<ll>&b){
	/*vector<ll>pre;
	fore(i,0,SZ(a)){
		pre.pb(a[i]);
		if(ask(b,pre))return i;
	}*/
	ll l=0,r=SZ(a)-1;
	while(l<=r){
		ll m=(l+r)/2;
		vector<ll>pre;
		fore(i,0,m+1)pre.pb(a[i]);
		if(ask(b,pre))r=m-1;
		else l=m+1;
	}
	return l;
}

vector<ll> rot(vector<ll>a, ll d){ // <--
	ll n=SZ(a);
	vector<ll>ai(n);
	fore(i,0,n)ai[i]=a[(i+d)%n];
	return ai;
}

vector<int> longest_trip(int N, int D){
	n=N,d=D;
	//vector<ll>tr={0,1,2,3,4,5};
	//imp(tr); imp(rot(tr,2));
	vector<vector<ll>>h;
	h.pb({0});
	h.pb({1});
	fore(x,2,n){
		if(ask({h[0].back()},{x}))h[0].pb(x);
		else if(ask({h[1].back()},{x}))h[1].pb(x);
		else {
			while(SZ(h[1]))h[0].pb(h[1].back()),h[1].pop_back();
			h[1]={x};
		}
	}
	/*if(SZ(h[0])>SZ(h[1]))return h[0];
	else return h[1];*/
	//imp(h[0]); imp(h[1]);
	if(ask({h[0].back()},{h[1][0]}));//cout<<"db0\n";
	else if(ask({h[0].back()},{h[1].back()}))reverse(ALL(h[1]));//,cout<<"db1\n";
	else if(ask({h[0][0]},{h[1][0]}))reverse(ALL(h[0]));//,cout<<"db2\n";
	else if(ask({h[0][0]},{h[1].back()}))
		reverse(ALL(h[0])),reverse(ALL(h[1]));//,cout<<"db3\n";
	else {
		if(!ask(h[0],h[1])){
			//cout<<"db4\n";
			if(SZ(h[0])>SZ(h[1]))return h[0];
			else return h[1];
		}
		//assert(0);
		/*cout<<"DEBUG\n";
		imp(h[0]); imp(h[1]);*/
		
		ll x=find(h[0],h[1]);
		vector<ll>fi={h[0][x]};
		ll y=find(h[1],fi);
		//assert(ask({h[0][x]}))
		//cout<<x<<" "<<y<<"\n";
		h[0]=rot(h[0],x+1),h[1]=rot(h[1],y);
		//imp(h[0]); imp(h[1]);
		//cout<<"END\n";
		//fore(i,0,SZ(h[0])-1)
	}
	for(auto i:h[1])h[0].pb(i);
	h[1].clear();
	return h[0];
}

Subtask #0
0.0 / 0.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 2 ms 344 KB Output is correct

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 344 KB Output is correct
2 Correct 7 ms 344 KB Output is correct
3 Correct 5 ms 344 KB Output is correct
4 Correct 4 ms 344 KB Output is correct
5 Correct 5 ms 344 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 344 KB Output is correct
2 Correct 4 ms 344 KB Output is correct
3 Correct 4 ms 344 KB Output is correct
4 Correct 4 ms 344 KB Output is correct
5 Correct 4 ms 344 KB Output is correct
6 Correct 6 ms 344 KB Output is correct
7 Correct 5 ms 344 KB Output is correct
8 Correct 4 ms 344 KB Output is correct
9 Correct 5 ms 344 KB Output is correct
10 Correct 5 ms 344 KB Output is correct
11 Correct 4 ms 344 KB Output is correct
12 Correct 4 ms 344 KB Output is correct
13 Correct 4 ms 344 KB Output is correct

Subtask #3
25.0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 344 KB Output is correct
2 Correct 5 ms 344 KB Output is correct
3 Correct 4 ms 344 KB Output is correct
4 Correct 4 ms 344 KB Output is correct
5 Correct 4 ms 344 KB Output is correct
6 Correct 7 ms 344 KB Output is correct
7 Correct 5 ms 344 KB Output is correct
8 Correct 4 ms 344 KB Output is correct
9 Correct 4 ms 344 KB Output is correct
10 Correct 4 ms 344 KB Output is correct
11 Correct 5 ms 344 KB Output is correct
12 Correct 4 ms 344 KB Output is correct
13 Correct 4 ms 344 KB Output is correct
14 Correct 11 ms 344 KB Output is correct
15 Correct 9 ms 344 KB Output is correct
16 Correct 7 ms 344 KB Output is correct
17 Correct 5 ms 344 KB Output is correct
18 Correct 5 ms 344 KB Output is correct
19 Correct 5 ms 600 KB Output is correct
20 Correct 5 ms 344 KB Output is correct
21 Correct 5 ms 344 KB Output is correct
22 Correct 5 ms 344 KB Output is correct
23 Correct 5 ms 344 KB Output is correct
24 Correct 5 ms 344 KB Output is correct
25 Correct 10 ms 344 KB Output is correct
26 Correct 9 ms 544 KB Output is correct
27 Correct 6 ms 344 KB Output is correct
28 Correct 7 ms 344 KB Output is correct
29 Correct 9 ms 344 KB Output is correct
30 Correct 5 ms 344 KB Output is correct
31 Correct 6 ms 344 KB Output is correct
32 Correct 6 ms 344 KB Output is correct
33 Correct 5 ms 344 KB Output is correct
34 Correct 4 ms 344 KB Output is correct
35 Correct 5 ms 344 KB Output is correct
36 Correct 4 ms 344 KB Output is correct
37 Correct 4 ms 344 KB Output is correct
38 Correct 5 ms 344 KB Output is correct
39 Correct 5 ms 600 KB Output is correct
40 Correct 7 ms 344 KB Output is correct
41 Correct 6 ms 600 KB Output is correct
42 Correct 7 ms 344 KB Output is correct
43 Correct 6 ms 344 KB Output is correct
44 Correct 6 ms 600 KB Output is correct
45 Correct 7 ms 344 KB Output is correct
46 Correct 8 ms 344 KB Output is correct
47 Correct 7 ms 344 KB Output is correct
48 Correct 8 ms 344 KB Output is correct
49 Correct 9 ms 344 KB Output is correct
50 Correct 5 ms 432 KB Output is correct
51 Correct 7 ms 432 KB Output is correct
52 Correct 7 ms 432 KB Output is correct
53 Correct 5 ms 600 KB Output is correct
54 Correct 5 ms 600 KB Output is correct
55 Correct 6 ms 344 KB Output is correct
56 Correct 5 ms 696 KB Output is correct
57 Correct 6 ms 448 KB Output is correct
58 Correct 10 ms 1112 KB Output is correct
59 Correct 7 ms 696 KB Output is correct
60 Correct 9 ms 604 KB Output is correct
61 Correct 7 ms 600 KB Output is correct
62 Correct 7 ms 704 KB Output is correct
63 Correct 7 ms 600 KB Output is correct
64 Correct 8 ms 600 KB Output is correct

Subtask #4
45.0 / 60.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 344 KB Output is correct
2 Correct 4 ms 344 KB Output is correct
3 Correct 4 ms 344 KB Output is correct
4 Correct 4 ms 344 KB Output is correct
5 Correct 4 ms 344 KB Output is correct
6 Correct 7 ms 344 KB Output is correct
7 Correct 5 ms 344 KB Output is correct
8 Correct 4 ms 344 KB Output is correct
9 Correct 4 ms 344 KB Output is correct
10 Correct 4 ms 540 KB Output is correct
11 Correct 4 ms 344 KB Output is correct
12 Correct 4 ms 344 KB Output is correct
13 Correct 4 ms 344 KB Output is correct
14 Correct 12 ms 596 KB Output is correct
15 Correct 9 ms 344 KB Output is correct
16 Correct 8 ms 344 KB Output is correct
17 Correct 9 ms 344 KB Output is correct
18 Correct 5 ms 344 KB Output is correct
19 Correct 5 ms 600 KB Output is correct
20 Correct 5 ms 344 KB Output is correct
21 Correct 12 ms 344 KB Output is correct
22 Correct 15 ms 596 KB Output is correct
23 Correct 7 ms 344 KB Output is correct
24 Correct 7 ms 344 KB Output is correct
25 Correct 7 ms 344 KB Output is correct
26 Correct 4 ms 344 KB Output is correct
27 Correct 6 ms 344 KB Output is correct
28 Correct 6 ms 344 KB Output is correct
29 Correct 5 ms 344 KB Output is correct
30 Correct 5 ms 596 KB Output is correct
31 Correct 5 ms 344 KB Output is correct
32 Correct 8 ms 344 KB Output is correct
33 Correct 7 ms 344 KB Output is correct
34 Correct 6 ms 344 KB Output is correct
35 Correct 8 ms 344 KB Output is correct
36 Correct 8 ms 344 KB Output is correct
37 Correct 5 ms 432 KB Output is correct
38 Correct 7 ms 432 KB Output is correct
39 Correct 8 ms 440 KB Output is correct
40 Correct 6 ms 600 KB Output is correct
41 Correct 5 ms 600 KB Output is correct
42 Correct 5 ms 600 KB Output is correct
43 Correct 5 ms 344 KB Output is correct
44 Correct 5 ms 344 KB Output is correct
45 Correct 5 ms 344 KB Output is correct
46 Correct 5 ms 600 KB Output is correct
47 Correct 5 ms 600 KB Output is correct
48 Correct 5 ms 344 KB Output is correct
49 Correct 5 ms 344 KB Output is correct
50 Correct 6 ms 344 KB Output is correct
51 Partially correct 6 ms 344 KB Output is partially correct
52 Correct 8 ms 600 KB Output is correct
53 Correct 6 ms 344 KB Output is correct
54 Correct 7 ms 344 KB Output is correct
55 Correct 6 ms 600 KB Output is correct
56 Correct 4 ms 344 KB Output is correct
57 Partially correct 7 ms 344 KB Output is partially correct
58 Partially correct 6 ms 344 KB Output is partially correct
59 Partially correct 6 ms 600 KB Output is partially correct
60 Correct 6 ms 344 KB Output is correct
61 Correct 7 ms 344 KB Output is correct
62 Correct 5 ms 856 KB Output is correct
63 Partially correct 6 ms 948 KB Output is partially correct
64 Partially correct 7 ms 948 KB Output is partially correct
65 Partially correct 6 ms 448 KB Output is partially correct
66 Partially correct 7 ms 700 KB Output is partially correct
67 Partially correct 7 ms 600 KB Output is partially correct
68 Partially correct 7 ms 856 KB Output is partially correct
69 Partially correct 7 ms 600 KB Output is partially correct
70 Partially correct 8 ms 600 KB Output is partially correct
71 Correct 5 ms 700 KB Output is correct
72 Partially correct 6 ms 860 KB Output is partially correct
73 Partially correct 7 ms 860 KB Output is partially correct
74 Partially correct 7 ms 608 KB Output is partially correct
75 Partially correct 7 ms 600 KB Output is partially correct
76 Partially correct 8 ms 856 KB Output is partially correct
77 Correct 5 ms 700 KB Output is correct
78 Partially correct 6 ms 696 KB Output is partially correct
79 Correct 6 ms 448 KB Output is correct
80 Partially correct 7 ms 608 KB Output is partially correct
81 Partially correct 7 ms 440 KB Output is partially correct
82 Partially correct 7 ms 440 KB Output is partially correct