oj.uz

Submission #960187

# Submission time Handle Problem Language Result Execution time Memory
960187 2024-04-09T20:32:50 Z tutis Longest Trip (IOI23_longesttrip) C++17
85 / 100
 18 ms 1116 KB 
#include "longesttrip.h"
#include <bits/stdc++.h>
using namespace std;
mt19937_64 rng(15645869);
 
std::vector<int> longest_trip(int N, int D)
{
    vector<int>x, y;
    vector<int>p;
    for(int i=0;i<N;i++){
        p.push_back(i);
    }
    shuffle(p.begin(),p.end(),rng);
    int color[N];
    for(int i=0;i<N;i++){
        color[i]=0;
    }
    for(int i:p){
        if(x.size()==0){
            x={i};
            color[i]=1;
            continue;
        }
        if(y.size()==0){
            if(are_connected({i}, {x[0]})){
                x.insert(x.begin(),i);
                continue;
            }
            if (are_connected({i}, {x.back()})){
                x.push_back(i);
                continue;
            }
            if(!are_connected({i}, x)){
                y={i};
                for(int i: x){
                    color[i]=1;
                }
                for(int i: y){
                    color[i]=2;
                }
                continue;
            }
            int lo=1;
            int hi=x.size()-2;
            int c=color[x[0]];
            if(c==0){
                c=color[x.back()];
            }
            if(c!=0){
                color[i]=3-c;
            }
            for(int i=lo;i<=hi;i++){
                if(color[x[i]]!=c && color[x[i]]!=0 && c!=0){
                    lo=hi=i;
                }
            }
            while(lo<hi){
                int m=(lo+hi)/2;
                vector<int>z;
                for(int i=lo;i<=m;i++){
                    z.push_back(x[i]);
                }
                if(are_connected(z, {i})){
                    hi=m;
                } else{
                    lo=m+1;
                }
            }
            vector<int>z;
            for(int i=lo+1;i<x.size();i++){
                z.push_back(x[i]);
            }
            for(int i=0;i<=lo;i++){
                z.push_back(x[i]);
            }
            z.push_back(i);
            x=z;
            continue;
        }
        if(!are_connected(x,{i})){
            y.push_back(i);
            color[i]=color[y[0]];
            continue;
        }
        if(!are_connected(y,{i})){
            x.push_back(i);
            color[i]=color[x[0]];
            continue;
        }
        int i0=0;
        int j0=0;
        if(!are_connected({x[0]},{i})){
            int lo=1;
            int hi=x.size()-1;
            while(lo<hi){
                int m=(lo+hi)/2;
                vector<int>z;
                for(int i=lo;i<=m;i++){
                    z.push_back(x[i]);
                }
                if(are_connected(z, {i})){
                    hi=m;
                } else{
                    lo=m+1;
                }
            }
            i0=lo;
        } else {
            int lo=0;
            int hi=y.size()-1;
            while(lo<hi){
                int m=(lo+hi)/2;
                vector<int>z;
                for(int i=lo;i<=m;i++){
                    z.push_back(y[i]);
                }
                if(are_connected(z, {i})){
                    hi=m;
                } else{
                    lo=m+1;
                }
            }
            j0=lo;
        }
        swap(x[i0], x.back());
        swap(y[j0], y[0]);
        x.push_back(i);
        for(int i: y){
            x.push_back(i);
        }
        y={};
    }
    if(x.size()>y.size()){
        return x;
    } else{
        return y;
    }
}

Compilation message

longesttrip.cpp: In function 'std::vector<int> longest_trip(int, int)':
longesttrip.cpp:70:29: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   70 |             for(int i=lo+1;i<x.size();i++){
      |                            ~^~~~~~~~~

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 444 KB Output is correct

Subtask #1
5.0 / 5.0

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

Subtask #2
10.0 / 10.0

# 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 6 ms 344 KB Output is correct
5 Correct 4 ms 596 KB Output is correct
6 Correct 8 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 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 5 ms 344 KB Output is correct
5 Correct 5 ms 344 KB Output is correct
6 Correct 8 ms 344 KB Output is correct
7 Correct 5 ms 340 KB Output is correct
8 Correct 5 ms 512 KB Output is correct
9 Correct 5 ms 596 KB Output is correct
10 Correct 4 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
14 Correct 8 ms 344 KB Output is correct
15 Correct 7 ms 344 KB Output is correct
16 Correct 7 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 8 ms 604 KB Output is correct
20 Correct 7 ms 496 KB Output is correct
21 Correct 6 ms 696 KB Output is correct
22 Correct 6 ms 448 KB Output is correct
23 Correct 6 ms 448 KB Output is correct
24 Correct 6 ms 700 KB Output is correct
25 Correct 9 ms 344 KB Output is correct
26 Correct 9 ms 344 KB Output is correct
27 Correct 8 ms 344 KB Output is correct
28 Correct 10 ms 344 KB Output is correct
29 Correct 7 ms 596 KB Output is correct
30 Correct 8 ms 436 KB Output is correct
31 Correct 9 ms 436 KB Output is correct
32 Correct 8 ms 344 KB Output is correct
33 Correct 9 ms 696 KB Output is correct
34 Correct 12 ms 448 KB Output is correct
35 Correct 11 ms 600 KB Output is correct
36 Correct 12 ms 720 KB Output is correct
37 Correct 17 ms 468 KB Output is correct
38 Correct 14 ms 456 KB Output is correct
39 Correct 16 ms 704 KB Output is correct
40 Correct 14 ms 448 KB Output is correct
41 Correct 13 ms 444 KB Output is correct
42 Correct 14 ms 448 KB Output is correct
43 Correct 13 ms 704 KB Output is correct
44 Correct 14 ms 444 KB Output is correct
45 Correct 8 ms 344 KB Output is correct
46 Correct 9 ms 344 KB Output is correct
47 Correct 6 ms 344 KB Output is correct
48 Correct 7 ms 344 KB Output is correct
49 Correct 11 ms 344 KB Output is correct
50 Correct 7 ms 436 KB Output is correct
51 Correct 10 ms 440 KB Output is correct
52 Correct 7 ms 344 KB Output is correct
53 Correct 6 ms 604 KB Output is correct
54 Correct 6 ms 344 KB Output is correct
55 Correct 10 ms 600 KB Output is correct
56 Correct 7 ms 720 KB Output is correct
57 Correct 14 ms 704 KB Output is correct
58 Correct 14 ms 860 KB Output is correct
59 Correct 10 ms 460 KB Output is correct
60 Correct 9 ms 700 KB Output is correct
61 Correct 10 ms 452 KB Output is correct
62 Correct 10 ms 704 KB Output is correct
63 Correct 12 ms 448 KB Output is correct
64 Correct 12 ms 448 KB Output is correct

Subtask #4
45.0 / 60.0

# 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 6 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 6 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 8 ms 596 KB Output is correct
15 Correct 9 ms 344 KB Output is correct
16 Correct 14 ms 344 KB Output is correct
17 Correct 7 ms 344 KB Output is correct
18 Correct 8 ms 600 KB Output is correct
19 Correct 7 ms 1108 KB Output is correct
20 Correct 6 ms 600 KB Output is correct
21 Correct 10 ms 540 KB Output is correct
22 Correct 8 ms 344 KB Output is correct
23 Correct 9 ms 344 KB Output is correct
24 Correct 10 ms 344 KB Output is correct
25 Correct 9 ms 344 KB Output is correct
26 Correct 9 ms 440 KB Output is correct
27 Correct 10 ms 436 KB Output is correct
28 Correct 8 ms 344 KB Output is correct
29 Correct 9 ms 768 KB Output is correct
30 Correct 12 ms 448 KB Output is correct
31 Correct 11 ms 440 KB Output is correct
32 Correct 7 ms 344 KB Output is correct
33 Correct 9 ms 344 KB Output is correct
34 Correct 7 ms 344 KB Output is correct
35 Correct 7 ms 344 KB Output is correct
36 Correct 6 ms 344 KB Output is correct
37 Correct 6 ms 436 KB Output is correct
38 Correct 11 ms 344 KB Output is correct
39 Correct 8 ms 344 KB Output is correct
40 Correct 7 ms 440 KB Output is correct
41 Correct 7 ms 344 KB Output is correct
42 Correct 10 ms 600 KB Output is correct
43 Correct 6 ms 708 KB Output is correct
44 Correct 6 ms 960 KB Output is correct
45 Correct 6 ms 608 KB Output is correct
46 Correct 5 ms 696 KB Output is correct
47 Partially correct 12 ms 876 KB Output is partially correct
48 Partially correct 18 ms 468 KB Output is partially correct
49 Partially correct 14 ms 712 KB Output is partially correct
50 Partially correct 15 ms 612 KB Output is partially correct
51 Partially correct 14 ms 704 KB Output is partially correct
52 Correct 13 ms 452 KB Output is correct
53 Correct 14 ms 444 KB Output is correct
54 Correct 13 ms 452 KB Output is correct
55 Correct 16 ms 448 KB Output is correct
56 Partially correct 17 ms 716 KB Output is partially correct
57 Partially correct 14 ms 708 KB Output is partially correct
58 Partially correct 16 ms 452 KB Output is partially correct
59 Partially correct 14 ms 708 KB Output is partially correct
60 Correct 17 ms 448 KB Output is correct
61 Correct 15 ms 452 KB Output is correct
62 Partially correct 8 ms 972 KB Output is partially correct
63 Partially correct 12 ms 716 KB Output is partially correct
64 Partially correct 17 ms 708 KB Output is partially correct
65 Partially correct 10 ms 960 KB Output is partially correct
66 Correct 10 ms 600 KB Output is correct
67 Correct 11 ms 448 KB Output is correct
68 Correct 10 ms 604 KB Output is correct
69 Correct 14 ms 440 KB Output is correct
70 Partially correct 10 ms 448 KB Output is partially correct
71 Partially correct 12 ms 708 KB Output is partially correct
72 Partially correct 15 ms 604 KB Output is partially correct
73 Partially correct 12 ms 444 KB Output is partially correct
74 Partially correct 10 ms 700 KB Output is partially correct
75 Correct 9 ms 448 KB Output is correct
76 Partially correct 11 ms 452 KB Output is partially correct
77 Partially correct 11 ms 616 KB Output is partially correct
78 Partially correct 10 ms 860 KB Output is partially correct
79 Partially correct 13 ms 1116 KB Output is partially correct
80 Correct 10 ms 444 KB Output is correct
81 Correct 12 ms 600 KB Output is correct
82 Partially correct 10 ms 452 KB Output is partially correct