oj.uz

Submission #722491

# Submission time Handle Problem Language Result Execution time Memory
722491 2023-04-12T06:57:30 Z alvingogo Chameleon's Love (JOI20_chameleon) C++14
100 / 100
 49 ms 368 KB 
#include "chameleon.h"
#include <bits/stdc++.h>
//#include "grader.cpp"
using namespace std;

namespace {

int variable_example = 1;
    int n;
}  // namespace

bool find(int x,int y){
    vector<int> g;
    for(int i=1;i<=n;i++){
        if(i==x || i==y){
            continue;
        }
        g.push_back(i);
    }
    int z=Query(g);
    return z<n/2;
}
mt19937 rnd(time(NULL));
void Solve(int N) {
    n=2*N;
    vector<int> tt(n);
    iota(tt.begin(),tt.end(),1);
    while(tt.size()>2){
        shuffle(tt.begin(),tt.end(),rnd);
        vector<int> s,t;
        for(auto h:tt){
            if(!s.size()){
                s.push_back(h);
                continue;
            }
            s.push_back(h);
            if(Query(s)==s.size()){
                continue;
            }
            s.pop_back();
            cerr << h << "\n";
            int l=0,r=((int)s.size())-1;
            while(r>l){
                int m=(l+r)/2;
                vector<int> tmp;
                for(int i=0;i<=m;i++){
                    tmp.push_back(s[i]);
                }
                tmp.push_back(h);
                if(Query(tmp)<=(int)tmp.size()-1){
                    r=m;
                }
                else{
                    l=m+1;
                }
            }
            cerr << s[l] << " " << h << "\n";
            if(find(s[l],h)){
                Answer(s[l],h);
                swap(s[l],s.back());
                s.pop_back();
            }
            else{
                t.push_back(h);
            }
        }
        s.insert(s.end(),t.begin(),t.end());
        tt.swap(s);
    }
    if(tt.size()){
        Answer(tt[0],tt[1]);
    }
}

Compilation message

chameleon.cpp: In function 'void Solve(int)':
chameleon.cpp:37:24: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   37 |             if(Query(s)==s.size()){
      |                ~~~~~~~~^~~~~~~~~~
chameleon.cpp: At global scope:
chameleon.cpp:8:5: warning: '{anonymous}::variable_example' defined but not used [-Wunused-variable]
    8 | int variable_example = 1;
      |     ^~~~~~~~~~~~~~~~

Subtask #1
4.0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 208 KB Output is correct
2 Correct 1 ms 228 KB Output is correct
3 Correct 21 ms 340 KB Output is correct
4 Correct 26 ms 340 KB Output is correct
5 Correct 23 ms 208 KB Output is correct
6 Correct 20 ms 332 KB Output is correct
7 Correct 23 ms 344 KB Output is correct
8 Correct 21 ms 336 KB Output is correct
9 Correct 21 ms 336 KB Output is correct

Subtask #2
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 208 KB Output is correct
2 Correct 1 ms 208 KB Output is correct
3 Correct 1 ms 208 KB Output is correct
4 Correct 1 ms 208 KB Output is correct
5 Correct 1 ms 208 KB Output is correct
6 Correct 0 ms 208 KB Output is correct
7 Correct 1 ms 208 KB Output is correct
8 Correct 1 ms 208 KB Output is correct
9 Correct 1 ms 208 KB Output is correct

Subtask #3
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 208 KB Output is correct
2 Correct 1 ms 208 KB Output is correct
3 Correct 1 ms 208 KB Output is correct
4 Correct 1 ms 208 KB Output is correct
5 Correct 1 ms 208 KB Output is correct
6 Correct 0 ms 208 KB Output is correct
7 Correct 1 ms 208 KB Output is correct
8 Correct 1 ms 208 KB Output is correct
9 Correct 1 ms 208 KB Output is correct
10 Correct 1 ms 208 KB Output is correct
11 Correct 1 ms 208 KB Output is correct
12 Correct 1 ms 208 KB Output is correct
13 Correct 1 ms 208 KB Output is correct
14 Correct 2 ms 208 KB Output is correct
15 Correct 1 ms 208 KB Output is correct
16 Correct 1 ms 208 KB Output is correct
17 Correct 2 ms 208 KB Output is correct
18 Correct 2 ms 208 KB Output is correct

Subtask #4
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 208 KB Output is correct
2 Correct 0 ms 208 KB Output is correct
3 Correct 31 ms 340 KB Output is correct
4 Correct 32 ms 336 KB Output is correct
5 Correct 33 ms 316 KB Output is correct
6 Correct 49 ms 340 KB Output is correct
7 Correct 33 ms 336 KB Output is correct
8 Correct 32 ms 332 KB Output is correct
9 Correct 32 ms 336 KB Output is correct

Subtask #5
36.0 / 36.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 208 KB Output is correct
2 Correct 1 ms 228 KB Output is correct
3 Correct 21 ms 340 KB Output is correct
4 Correct 26 ms 340 KB Output is correct
5 Correct 23 ms 208 KB Output is correct
6 Correct 20 ms 332 KB Output is correct
7 Correct 23 ms 344 KB Output is correct
8 Correct 21 ms 336 KB Output is correct
9 Correct 21 ms 336 KB Output is correct
10 Correct 0 ms 208 KB Output is correct
11 Correct 1 ms 208 KB Output is correct
12 Correct 1 ms 208 KB Output is correct
13 Correct 1 ms 208 KB Output is correct
14 Correct 1 ms 208 KB Output is correct
15 Correct 0 ms 208 KB Output is correct
16 Correct 1 ms 208 KB Output is correct
17 Correct 1 ms 208 KB Output is correct
18 Correct 1 ms 208 KB Output is correct
19 Correct 1 ms 208 KB Output is correct
20 Correct 1 ms 208 KB Output is correct
21 Correct 1 ms 208 KB Output is correct
22 Correct 1 ms 208 KB Output is correct
23 Correct 2 ms 208 KB Output is correct
24 Correct 1 ms 208 KB Output is correct
25 Correct 1 ms 208 KB Output is correct
26 Correct 2 ms 208 KB Output is correct
27 Correct 2 ms 208 KB Output is correct
28 Correct 0 ms 208 KB Output is correct
29 Correct 0 ms 208 KB Output is correct
30 Correct 31 ms 340 KB Output is correct
31 Correct 32 ms 336 KB Output is correct
32 Correct 33 ms 316 KB Output is correct
33 Correct 49 ms 340 KB Output is correct
34 Correct 33 ms 336 KB Output is correct
35 Correct 32 ms 332 KB Output is correct
36 Correct 32 ms 336 KB Output is correct
37 Correct 32 ms 336 KB Output is correct
38 Correct 22 ms 208 KB Output is correct
39 Correct 32 ms 348 KB Output is correct
40 Correct 33 ms 336 KB Output is correct
41 Correct 35 ms 208 KB Output is correct
42 Correct 24 ms 336 KB Output is correct
43 Correct 32 ms 336 KB Output is correct
44 Correct 35 ms 368 KB Output is correct
45 Correct 33 ms 332 KB Output is correct