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Submission #845792

# Submission time Handle Problem Language Result Execution time Memory
845792 2023-09-06T15:40:06 Z leinad2 Longest Trip (IOI23_longesttrip) C++17
85 / 100
 13 ms 852 KB 
#include "longesttrip.h"
 
#include<bits/stdc++.h>
using namespace std;
int i, j, k, a, b, A[260][260], B[260];
vector<int> longest_trip(int N, int D)
{
    vector<int>v1, v2;
    v1.push_back(0);
    v2.push_back(1);
    bool flag=false;
    for(i=2;i<N;i++)
    {
        vector<int>X, Y, Z;
        X.push_back(v1.back());Y.push_back(i);Z.push_back(v2.back());
        if(are_connected(X, Y))v1.push_back(i);
      	else if(are_connected(Y, Z))v2.push_back(i);
      else
      {
        while(v2.size())
            {
                v1.push_back(v2.back());
                v2.pop_back();
            }
            v2.push_back(i);
      }
    }
    if(are_connected(v1, v2)==0)
    {
        if(v1.size()<v2.size())swap(v1, v2);
        return v1;
    }
    vector<int>X, Y, Z, W;
    X.push_back(v1.back());
    Z.push_back(v2[0]);W.push_back(v2.back());
    if(are_connected(X, Z))
    {
        for(auto p:v2)v1.push_back(p);
        return v1;
    }
    if(are_connected(X, W))
    {
        while(v2.size())
        {
            v1.push_back(v2.back());
            v2.pop_back();
        }
        return v1;
    }
    if(are_connected(X, v2))
    {
        int s=0, e=v2.size()-1;
        while(s<e)
        {
            int m=s+e>>1;
            vector<int>V;
            for(i=0;i<=m;i++)V.push_back(v2[i]);
            if(are_connected(X, V))e=m;
            else s=m+1;
        }
        for(i=s;i<v2.size();i++)v1.push_back(v2[i]);
        for(i=0;i<s;i++)v1.push_back(v2[i]);
        return v1;
    }
    Y.push_back(v1[0]);
    if(are_connected(Y, v2))
    {
        int s=0, e=v2.size()-1;
        while(s<e)
        {
            int m=s+e>>1;
            vector<int>V;
            for(i=0;i<=m;i++)V.push_back(v2[i]);
            if(are_connected(Y, V))e=m;
            else s=m+1;
        }
        reverse(v1.begin(), v1.end());
        for(i=s;i<v2.size();i++)v1.push_back(v2[i]);
        for(i=0;i<s;i++)v1.push_back(v2[i]);
        return v1;
    }
    int s=0, e=v1.size()-1;
    while(s<e)
    {
        int m=s+e>>1;
        vector<int>V;
        for(i=0;i<=m;i++)V.push_back(v1[i]);
        if(are_connected(V, v2))e=m;
        else s=m+1;
    }
    int ss=s;
    s=0, e=v2.size()-1;
    X[0]=v1[ss];
    while(s<e)
    {
        int m=s+e>>1;
        vector<int>V;
        for(i=0;i<=m;i++)V.push_back(v2[i]);
        if(are_connected(X, V))e=m;
        else s=m+1;
    }
    vector<int>ans;
    for(i=ss-1;i>=0;i--)ans.push_back(v1[i]);
    for(i=v1.size()-1;i>=ss;i--)ans.push_back(v1[i]);
    for(i=s;i<v2.size();i++)ans.push_back(v2[i]);
    for(i=0;i<s;i++)ans.push_back(v2[i]);
    v1=v2;
    return ans;
}

Compilation message

longesttrip.cpp: In function 'std::vector<int> longest_trip(int, int)':
longesttrip.cpp:55:20: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   55 |             int m=s+e>>1;
      |                   ~^~
longesttrip.cpp:61:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   61 |         for(i=s;i<v2.size();i++)v1.push_back(v2[i]);
      |                 ~^~~~~~~~~~
longesttrip.cpp:71:20: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   71 |             int m=s+e>>1;
      |                   ~^~
longesttrip.cpp:78:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   78 |         for(i=s;i<v2.size();i++)v1.push_back(v2[i]);
      |                 ~^~~~~~~~~~
longesttrip.cpp:85:16: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   85 |         int m=s+e>>1;
      |               ~^~
longesttrip.cpp:96:16: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   96 |         int m=s+e>>1;
      |               ~^~
longesttrip.cpp:105:14: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  105 |     for(i=s;i<v2.size();i++)ans.push_back(v2[i]);
      |             ~^~~~~~~~~~
longesttrip.cpp:11:10: warning: unused variable 'flag' [-Wunused-variable]
   11 |     bool flag=false;
      |          ^~~~

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 600 KB Output is correct

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 8 ms 344 KB Output is correct
2 Correct 6 ms 344 KB Output is correct
3 Correct 5 ms 344 KB Output is correct
4 Correct 5 ms 344 KB Output is correct
5 Correct 5 ms 348 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 7 ms 344 KB Output is correct
2 Correct 6 ms 344 KB Output is correct
3 Correct 5 ms 344 KB Output is correct
4 Correct 5 ms 344 KB Output is correct
5 Correct 4 ms 344 KB Output is correct
6 Correct 10 ms 344 KB Output is correct
7 Correct 5 ms 344 KB Output is correct
8 Correct 5 ms 344 KB Output is correct
9 Correct 4 ms 600 KB Output is correct
10 Correct 5 ms 608 KB Output is correct
11 Correct 5 ms 344 KB Output is correct
12 Correct 5 ms 344 KB Output is correct
13 Correct 5 ms 344 KB Output is correct

Subtask #3
25.0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 8 ms 344 KB Output is correct
2 Correct 6 ms 344 KB Output is correct
3 Correct 5 ms 344 KB Output is correct
4 Correct 5 ms 344 KB Output is correct
5 Correct 4 ms 344 KB Output is correct
6 Correct 8 ms 344 KB Output is correct
7 Correct 7 ms 344 KB Output is correct
8 Correct 5 ms 344 KB Output is correct
9 Correct 5 ms 600 KB Output is correct
10 Correct 4 ms 344 KB Output is correct
11 Correct 5 ms 344 KB Output is correct
12 Correct 6 ms 600 KB Output is correct
13 Correct 5 ms 600 KB Output is correct
14 Correct 6 ms 344 KB Output is correct
15 Correct 6 ms 344 KB Output is correct
16 Correct 8 ms 344 KB Output is correct
17 Correct 6 ms 344 KB Output is correct
18 Correct 6 ms 344 KB Output is correct
19 Correct 5 ms 596 KB Output is correct
20 Correct 5 ms 344 KB Output is correct
21 Correct 5 ms 600 KB Output is correct
22 Correct 5 ms 852 KB Output is correct
23 Correct 7 ms 448 KB Output is correct
24 Correct 5 ms 600 KB Output is correct
25 Correct 7 ms 344 KB Output is correct
26 Correct 6 ms 344 KB Output is correct
27 Correct 5 ms 344 KB Output is correct
28 Correct 7 ms 344 KB Output is correct
29 Correct 6 ms 344 KB Output is correct
30 Correct 4 ms 344 KB Output is correct
31 Correct 5 ms 344 KB Output is correct
32 Correct 7 ms 344 KB Output is correct
33 Correct 6 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 5 ms 344 KB Output is correct
37 Correct 5 ms 344 KB Output is correct
38 Correct 5 ms 344 KB Output is correct
39 Correct 6 ms 600 KB Output is correct
40 Correct 8 ms 344 KB Output is correct
41 Correct 7 ms 344 KB Output is correct
42 Correct 7 ms 344 KB Output is correct
43 Correct 8 ms 340 KB Output is correct
44 Correct 7 ms 600 KB Output is correct
45 Correct 13 ms 344 KB Output is correct
46 Correct 10 ms 344 KB Output is correct
47 Correct 8 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 6 ms 444 KB Output is correct
51 Correct 8 ms 600 KB Output is correct
52 Correct 7 ms 344 KB Output is correct
53 Correct 5 ms 344 KB Output is correct
54 Correct 5 ms 344 KB Output is correct
55 Correct 6 ms 344 KB Output is correct
56 Correct 5 ms 604 KB Output is correct
57 Correct 6 ms 452 KB Output is correct
58 Correct 7 ms 604 KB Output is correct
59 Correct 8 ms 700 KB Output is correct
60 Correct 10 ms 704 KB Output is correct
61 Correct 8 ms 444 KB Output is correct
62 Correct 8 ms 444 KB Output is correct
63 Correct 7 ms 608 KB Output is correct
64 Correct 7 ms 600 KB Output is correct

Subtask #4
45.0 / 60.0

# Verdict Execution time Memory Grader output
1 Correct 7 ms 344 KB Output is correct
2 Correct 5 ms 340 KB Output is correct
3 Correct 5 ms 344 KB Output is correct
4 Correct 5 ms 344 KB Output is correct
5 Correct 6 ms 600 KB Output is correct
6 Correct 10 ms 344 KB Output is correct
7 Correct 6 ms 344 KB Output is correct
8 Correct 4 ms 344 KB Output is correct
9 Correct 4 ms 440 KB Output is correct
10 Correct 5 ms 600 KB Output is correct
11 Correct 5 ms 344 KB Output is correct
12 Correct 5 ms 344 KB Output is correct
13 Correct 5 ms 600 KB Output is correct
14 Correct 6 ms 344 KB Output is correct
15 Correct 6 ms 340 KB Output is correct
16 Correct 8 ms 344 KB Output is correct
17 Correct 6 ms 344 KB Output is correct
18 Correct 5 ms 344 KB Output is correct
19 Correct 5 ms 344 KB Output is correct
20 Correct 6 ms 440 KB Output is correct
21 Correct 6 ms 344 KB Output is correct
22 Correct 7 ms 344 KB Output is correct
23 Correct 7 ms 344 KB Output is correct
24 Correct 6 ms 344 KB Output is correct
25 Correct 8 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 344 KB Output is correct
31 Correct 5 ms 344 KB Output is correct
32 Correct 9 ms 344 KB Output is correct
33 Correct 11 ms 344 KB Output is correct
34 Correct 7 ms 344 KB Output is correct
35 Correct 8 ms 344 KB Output is correct
36 Correct 10 ms 340 KB Output is correct
37 Correct 5 ms 440 KB Output is correct
38 Correct 8 ms 448 KB Output is correct
39 Correct 8 ms 344 KB Output is correct
40 Correct 5 ms 344 KB Output is correct
41 Correct 6 ms 344 KB Output is correct
42 Correct 6 ms 344 KB Output is correct
43 Correct 5 ms 344 KB Output is correct
44 Correct 5 ms 344 KB Output is correct
45 Correct 6 ms 756 KB Output is correct
46 Correct 5 ms 344 KB Output is correct
47 Correct 4 ms 344 KB Output is correct
48 Correct 5 ms 344 KB Output is correct
49 Correct 6 ms 600 KB Output is correct
50 Correct 6 ms 600 KB Output is correct
51 Partially correct 7 ms 344 KB Output is partially correct
52 Correct 6 ms 344 KB Output is correct
53 Correct 6 ms 344 KB Output is correct
54 Correct 8 ms 344 KB Output is correct
55 Correct 7 ms 344 KB Output is correct
56 Correct 5 ms 596 KB Output is correct
57 Partially correct 6 ms 344 KB Output is partially correct
58 Partially correct 8 ms 444 KB Output is partially correct
59 Partially correct 7 ms 608 KB Output is partially correct
60 Correct 8 ms 600 KB Output is correct
61 Correct 7 ms 344 KB Output is correct
62 Correct 6 ms 600 KB Output is correct
63 Partially correct 7 ms 608 KB Output is partially correct
64 Partially correct 7 ms 604 KB Output is partially correct
65 Partially correct 7 ms 452 KB Output is partially correct
66 Partially correct 10 ms 696 KB Output is partially correct
67 Partially correct 8 ms 444 KB Output is partially correct
68 Partially correct 9 ms 604 KB Output is partially correct
69 Partially correct 8 ms 444 KB Output is partially correct
70 Partially correct 9 ms 444 KB Output is partially correct
71 Correct 6 ms 608 KB Output is correct
72 Partially correct 7 ms 608 KB Output is partially correct
73 Partially correct 7 ms 600 KB Output is partially correct
74 Partially correct 8 ms 604 KB Output is partially correct
75 Partially correct 7 ms 852 KB Output is partially correct
76 Partially correct 8 ms 600 KB Output is partially correct
77 Correct 6 ms 448 KB Output is correct
78 Partially correct 6 ms 704 KB Output is partially correct
79 Correct 6 ms 444 KB Output is correct
80 Partially correct 7 ms 604 KB Output is partially correct
81 Partially correct 7 ms 600 KB Output is partially correct
82 Partially correct 7 ms 604 KB Output is partially correct