oj.uz

Submission #376193

# Submission time Handle Problem Language Result Execution time Memory
376193 2021-03-11T03:53:07 Z wiwiho Lamps (JOI19_lamps) C++14
6 / 100
 464 ms 4796 KB 
#include <bits/stdc++.h>
 
#define eb emplace_back
#define printv(a, b) { \
    for(auto pv : a) b << pv << " "; \
    b << "\n"; \
}
 
using namespace std;
 
int main(){
    ios_base::sync_with_stdio(false);
    cin.tie(0);
 
    int n;
    string sa, sb;
    cin >> n >> sa >> sb;
    
    assert(n <= 18);

    int a = bitset<20>(sa).to_ulong(), b = bitset<20>(sb).to_ulong();

    vector<int> dis(1 << n, -1);
    queue<int> q;
    q.push(a);
    dis[a] = 0;
    
    while(!q.empty()){
        int now = q.front();
        q.pop();
        
        for(int j = 0; j < n; j++){
            int tmp = now;
            for(int k = j; k < n; k++){
                tmp ^= 1 << k;
                if(dis[tmp] == -1){
                    dis[tmp] = dis[now] + 1;
                    q.push(tmp);
                }
            }
        }

        for(int j = 0; j < n; j++){
            int tmp = now;
            for(int k = j; k < n; k++){
                tmp |= 1 << k;
                if(dis[tmp] == -1){
                    dis[tmp] = dis[now] + 1;
                    q.push(tmp);
                }
            }
        }
        
        for(int j = 0; j < n; j++){
            int tmp = now;
            for(int k = j; k < n; k++){
                if(1 << k & tmp) tmp ^= 1 << k;
                if(dis[tmp] == -1){
                    dis[tmp] = dis[now] + 1;
                    q.push(tmp);
                }
            }
        }
    }
   
    cout << dis[b] << "\n";
 
    return 0;
}

Subtask #1
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 364 KB Output is correct
2 Correct 1 ms 364 KB Output is correct
3 Correct 0 ms 364 KB Output is correct
4 Correct 1 ms 364 KB Output is correct
5 Correct 1 ms 364 KB Output is correct
6 Correct 1 ms 364 KB Output is correct
7 Correct 1 ms 364 KB Output is correct
8 Correct 463 ms 1772 KB Output is correct
9 Correct 444 ms 1900 KB Output is correct
10 Correct 193 ms 1004 KB Output is correct
11 Correct 200 ms 1004 KB Output is correct
12 Correct 447 ms 2028 KB Output is correct
13 Correct 190 ms 1152 KB Output is correct
14 Correct 458 ms 1772 KB Output is correct
15 Correct 199 ms 1260 KB Output is correct
16 Correct 449 ms 2080 KB Output is correct
17 Correct 189 ms 1260 KB Output is correct
18 Correct 448 ms 2028 KB Output is correct
19 Correct 195 ms 1132 KB Output is correct
20 Correct 451 ms 1928 KB Output is correct
21 Correct 193 ms 1132 KB Output is correct
22 Correct 458 ms 1900 KB Output is correct
23 Correct 199 ms 1260 KB Output is correct
24 Correct 440 ms 2028 KB Output is correct
25 Correct 194 ms 1132 KB Output is correct
26 Correct 464 ms 1900 KB Output is correct
27 Correct 189 ms 1132 KB Output is correct
28 Correct 85 ms 768 KB Output is correct
29 Correct 444 ms 1900 KB Output is correct
30 Correct 194 ms 1260 KB Output is correct
31 Correct 98 ms 748 KB Output is correct
32 Correct 452 ms 1900 KB Output is correct
33 Correct 194 ms 1388 KB Output is correct
34 Correct 85 ms 748 KB Output is correct

Subtask #2
0 / 41.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 364 KB Output is correct
2 Correct 1 ms 364 KB Output is correct
3 Correct 0 ms 364 KB Output is correct
4 Correct 1 ms 364 KB Output is correct
5 Correct 1 ms 364 KB Output is correct
6 Correct 1 ms 364 KB Output is correct
7 Correct 1 ms 364 KB Output is correct
8 Correct 463 ms 1772 KB Output is correct
9 Correct 444 ms 1900 KB Output is correct
10 Correct 193 ms 1004 KB Output is correct
11 Correct 200 ms 1004 KB Output is correct
12 Correct 447 ms 2028 KB Output is correct
13 Correct 190 ms 1152 KB Output is correct
14 Correct 458 ms 1772 KB Output is correct
15 Correct 199 ms 1260 KB Output is correct
16 Correct 449 ms 2080 KB Output is correct
17 Correct 189 ms 1260 KB Output is correct
18 Correct 448 ms 2028 KB Output is correct
19 Correct 195 ms 1132 KB Output is correct
20 Correct 451 ms 1928 KB Output is correct
21 Correct 193 ms 1132 KB Output is correct
22 Correct 458 ms 1900 KB Output is correct
23 Correct 199 ms 1260 KB Output is correct
24 Correct 440 ms 2028 KB Output is correct
25 Correct 194 ms 1132 KB Output is correct
26 Correct 464 ms 1900 KB Output is correct
27 Correct 189 ms 1132 KB Output is correct
28 Correct 85 ms 768 KB Output is correct
29 Correct 444 ms 1900 KB Output is correct
30 Correct 194 ms 1260 KB Output is correct
31 Correct 98 ms 748 KB Output is correct
32 Correct 452 ms 1900 KB Output is correct
33 Correct 194 ms 1388 KB Output is correct
34 Correct 85 ms 748 KB Output is correct
35 Runtime error 1 ms 492 KB Execution killed with signal 6
36 Halted 0 ms 0 KB -

Subtask #3
0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 364 KB Output is correct
2 Correct 1 ms 364 KB Output is correct
3 Correct 1 ms 364 KB Output is correct
4 Correct 0 ms 364 KB Output is correct
5 Correct 0 ms 364 KB Output is correct
6 Correct 0 ms 364 KB Output is correct
7 Runtime error 9 ms 4796 KB Execution killed with signal 6
8 Halted 0 ms 0 KB -

Subtask #4
0 / 49.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 364 KB Output is correct
2 Correct 1 ms 364 KB Output is correct
3 Correct 0 ms 364 KB Output is correct
4 Correct 1 ms 364 KB Output is correct
5 Correct 1 ms 364 KB Output is correct
6 Correct 1 ms 364 KB Output is correct
7 Correct 1 ms 364 KB Output is correct
8 Correct 463 ms 1772 KB Output is correct
9 Correct 444 ms 1900 KB Output is correct
10 Correct 193 ms 1004 KB Output is correct
11 Correct 200 ms 1004 KB Output is correct
12 Correct 447 ms 2028 KB Output is correct
13 Correct 190 ms 1152 KB Output is correct
14 Correct 458 ms 1772 KB Output is correct
15 Correct 199 ms 1260 KB Output is correct
16 Correct 449 ms 2080 KB Output is correct
17 Correct 189 ms 1260 KB Output is correct
18 Correct 448 ms 2028 KB Output is correct
19 Correct 195 ms 1132 KB Output is correct
20 Correct 451 ms 1928 KB Output is correct
21 Correct 193 ms 1132 KB Output is correct
22 Correct 458 ms 1900 KB Output is correct
23 Correct 199 ms 1260 KB Output is correct
24 Correct 440 ms 2028 KB Output is correct
25 Correct 194 ms 1132 KB Output is correct
26 Correct 464 ms 1900 KB Output is correct
27 Correct 189 ms 1132 KB Output is correct
28 Correct 85 ms 768 KB Output is correct
29 Correct 444 ms 1900 KB Output is correct
30 Correct 194 ms 1260 KB Output is correct
31 Correct 98 ms 748 KB Output is correct
32 Correct 452 ms 1900 KB Output is correct
33 Correct 194 ms 1388 KB Output is correct
34 Correct 85 ms 748 KB Output is correct
35 Runtime error 1 ms 492 KB Execution killed with signal 6
36 Halted 0 ms 0 KB -