oj.uz

Submission #153052

# Submission time Handle Problem Language Result Execution time Memory
153052 2019-09-11T19:16:42 Z fedoseevtimofey Lamps (JOI19_lamps) C++14
100 / 100
 358 ms 41608 KB 
#include <bits/stdc++.h>

using namespace std;

typedef long long ll;
typedef long double ld;

const int N = 1e6 + 7;

int dp[N][2][2][2];
int a[N], b[N];

const int Inf = 1e9 + 7;

bool valid(int i, int j, int k, int id) {
    if (i == 1 && j == 1) return false;
    int x = a[id];
    if (i) x = 0;
    if (j) x = 1;
    if (k) x ^= 1;
    return x == b[id];
}

int main() {
    ios_base::sync_with_stdio(false); cin.tie(0); cout.setf(ios::fixed); cout.precision(20);
    #ifdef LOCAL
    freopen("input.txt", "r", stdin);
    freopen("output.txt", "w", stdout);
    #endif
    int n;
    cin >> n;
    for (int i = 0; i < n; ++i) {
        char c;
        cin >> c;
        a[i] = c - '0';
    }
    for (int i = 0; i < n; ++i) {
        char c;
        cin >> c;
        b[i] = c - '0';
    }
    for (int i = 0; i < N; ++i) {
        for (int j = 0; j < 2; ++j) {
            for (int k = 0; k < 2; ++k) {
                for (int t = 0; t < 2; ++t) {
                    dp[i][j][k][t] = Inf;
                }
            }
        }
    }
    dp[0][0][0][0] = 0;
    for (int i = 0; i < n; ++i) {
        for (int j = 0; j < 2; ++j) {
            for (int k = 0; k < 2; ++k) {
                for (int t = 0; t < 2; ++t) {
                    for (int nj = 0; nj < 2; ++nj) {
                        for (int nk = 0; nk < 2; ++nk) {
                            for (int nt = 0; nt < 2; ++nt) {
                                if (valid(nj, nk, nt, i)) {
                                    int delta = (nj > j) + (nk > k) + (nt > t);
                                    dp[i + 1][nj][nk][nt] = min(dp[i + 1][nj][nk][nt], dp[i][j][k][t] + delta);
                                }
                            }
                        }
                    }
                }
            }
        }
    }
    int ans = Inf;
    for (int i = 0; i < 2; ++i) for (int j = 0; j < 2; ++j) for (int k = 0; k < 2; ++k) ans = min(ans, dp[n][i][j][k]);
    cout << ans << '\n';
}

Subtask #1
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 29 ms 31864 KB Output is correct
2 Correct 29 ms 31736 KB Output is correct
3 Correct 30 ms 31736 KB Output is correct
4 Correct 29 ms 31608 KB Output is correct
5 Correct 29 ms 31608 KB Output is correct
6 Correct 29 ms 31608 KB Output is correct
7 Correct 29 ms 31608 KB Output is correct
8 Correct 28 ms 31608 KB Output is correct
9 Correct 29 ms 31612 KB Output is correct
10 Correct 29 ms 31628 KB Output is correct
11 Correct 29 ms 31608 KB Output is correct
12 Correct 29 ms 31608 KB Output is correct
13 Correct 35 ms 31604 KB Output is correct
14 Correct 29 ms 31608 KB Output is correct
15 Correct 29 ms 31608 KB Output is correct
16 Correct 29 ms 31608 KB Output is correct
17 Correct 29 ms 31608 KB Output is correct
18 Correct 29 ms 31608 KB Output is correct
19 Correct 29 ms 31608 KB Output is correct
20 Correct 29 ms 31608 KB Output is correct
21 Correct 29 ms 31608 KB Output is correct
22 Correct 29 ms 31608 KB Output is correct
23 Correct 29 ms 31608 KB Output is correct
24 Correct 29 ms 31608 KB Output is correct
25 Correct 29 ms 31608 KB Output is correct
26 Correct 29 ms 31608 KB Output is correct
27 Correct 29 ms 31608 KB Output is correct
28 Correct 34 ms 31612 KB Output is correct
29 Correct 33 ms 31608 KB Output is correct
30 Correct 29 ms 31608 KB Output is correct
31 Correct 30 ms 31736 KB Output is correct
32 Correct 31 ms 31736 KB Output is correct
33 Correct 30 ms 31608 KB Output is correct
34 Correct 29 ms 31608 KB Output is correct

Subtask #2
41.0 / 41.0

# Verdict Execution time Memory Grader output
1 Correct 29 ms 31864 KB Output is correct
2 Correct 29 ms 31736 KB Output is correct
3 Correct 30 ms 31736 KB Output is correct
4 Correct 29 ms 31608 KB Output is correct
5 Correct 29 ms 31608 KB Output is correct
6 Correct 29 ms 31608 KB Output is correct
7 Correct 29 ms 31608 KB Output is correct
8 Correct 28 ms 31608 KB Output is correct
9 Correct 29 ms 31612 KB Output is correct
10 Correct 29 ms 31628 KB Output is correct
11 Correct 29 ms 31608 KB Output is correct
12 Correct 29 ms 31608 KB Output is correct
13 Correct 35 ms 31604 KB Output is correct
14 Correct 29 ms 31608 KB Output is correct
15 Correct 29 ms 31608 KB Output is correct
16 Correct 29 ms 31608 KB Output is correct
17 Correct 29 ms 31608 KB Output is correct
18 Correct 29 ms 31608 KB Output is correct
19 Correct 29 ms 31608 KB Output is correct
20 Correct 29 ms 31608 KB Output is correct
21 Correct 29 ms 31608 KB Output is correct
22 Correct 29 ms 31608 KB Output is correct
23 Correct 29 ms 31608 KB Output is correct
24 Correct 29 ms 31608 KB Output is correct
25 Correct 29 ms 31608 KB Output is correct
26 Correct 29 ms 31608 KB Output is correct
27 Correct 29 ms 31608 KB Output is correct
28 Correct 34 ms 31612 KB Output is correct
29 Correct 33 ms 31608 KB Output is correct
30 Correct 29 ms 31608 KB Output is correct
31 Correct 30 ms 31736 KB Output is correct
32 Correct 31 ms 31736 KB Output is correct
33 Correct 30 ms 31608 KB Output is correct
34 Correct 29 ms 31608 KB Output is correct
35 Correct 30 ms 31736 KB Output is correct
36 Correct 30 ms 31736 KB Output is correct
37 Correct 30 ms 31644 KB Output is correct
38 Correct 30 ms 31636 KB Output is correct
39 Correct 30 ms 31608 KB Output is correct
40 Correct 29 ms 31708 KB Output is correct
41 Correct 30 ms 31736 KB Output is correct
42 Correct 29 ms 31608 KB Output is correct
43 Correct 30 ms 31736 KB Output is correct
44 Correct 30 ms 31696 KB Output is correct
45 Correct 29 ms 31608 KB Output is correct
46 Correct 30 ms 31604 KB Output is correct
47 Correct 30 ms 31736 KB Output is correct
48 Correct 29 ms 31608 KB Output is correct
49 Correct 41 ms 31736 KB Output is correct
50 Correct 30 ms 31608 KB Output is correct
51 Correct 30 ms 31608 KB Output is correct
52 Correct 30 ms 31608 KB Output is correct
53 Correct 30 ms 31608 KB Output is correct
54 Correct 30 ms 31716 KB Output is correct
55 Correct 30 ms 31736 KB Output is correct
56 Correct 30 ms 31676 KB Output is correct
57 Correct 30 ms 31736 KB Output is correct
58 Correct 30 ms 31608 KB Output is correct

Subtask #3
4.0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 29 ms 31624 KB Output is correct
2 Correct 29 ms 31708 KB Output is correct
3 Correct 30 ms 31608 KB Output is correct
4 Correct 29 ms 31736 KB Output is correct
5 Correct 29 ms 31736 KB Output is correct
6 Correct 29 ms 31608 KB Output is correct
7 Correct 332 ms 41528 KB Output is correct
8 Correct 345 ms 41480 KB Output is correct
9 Correct 344 ms 41544 KB Output is correct
10 Correct 343 ms 41468 KB Output is correct
11 Correct 341 ms 41468 KB Output is correct
12 Correct 336 ms 41592 KB Output is correct
13 Correct 332 ms 41464 KB Output is correct
14 Correct 341 ms 41592 KB Output is correct

Subtask #4
49.0 / 49.0

# Verdict Execution time Memory Grader output
1 Correct 29 ms 31864 KB Output is correct
2 Correct 29 ms 31736 KB Output is correct
3 Correct 30 ms 31736 KB Output is correct
4 Correct 29 ms 31608 KB Output is correct
5 Correct 29 ms 31608 KB Output is correct
6 Correct 29 ms 31608 KB Output is correct
7 Correct 29 ms 31608 KB Output is correct
8 Correct 28 ms 31608 KB Output is correct
9 Correct 29 ms 31612 KB Output is correct
10 Correct 29 ms 31628 KB Output is correct
11 Correct 29 ms 31608 KB Output is correct
12 Correct 29 ms 31608 KB Output is correct
13 Correct 35 ms 31604 KB Output is correct
14 Correct 29 ms 31608 KB Output is correct
15 Correct 29 ms 31608 KB Output is correct
16 Correct 29 ms 31608 KB Output is correct
17 Correct 29 ms 31608 KB Output is correct
18 Correct 29 ms 31608 KB Output is correct
19 Correct 29 ms 31608 KB Output is correct
20 Correct 29 ms 31608 KB Output is correct
21 Correct 29 ms 31608 KB Output is correct
22 Correct 29 ms 31608 KB Output is correct
23 Correct 29 ms 31608 KB Output is correct
24 Correct 29 ms 31608 KB Output is correct
25 Correct 29 ms 31608 KB Output is correct
26 Correct 29 ms 31608 KB Output is correct
27 Correct 29 ms 31608 KB Output is correct
28 Correct 34 ms 31612 KB Output is correct
29 Correct 33 ms 31608 KB Output is correct
30 Correct 29 ms 31608 KB Output is correct
31 Correct 30 ms 31736 KB Output is correct
32 Correct 31 ms 31736 KB Output is correct
33 Correct 30 ms 31608 KB Output is correct
34 Correct 29 ms 31608 KB Output is correct
35 Correct 30 ms 31736 KB Output is correct
36 Correct 30 ms 31736 KB Output is correct
37 Correct 30 ms 31644 KB Output is correct
38 Correct 30 ms 31636 KB Output is correct
39 Correct 30 ms 31608 KB Output is correct
40 Correct 29 ms 31708 KB Output is correct
41 Correct 30 ms 31736 KB Output is correct
42 Correct 29 ms 31608 KB Output is correct
43 Correct 30 ms 31736 KB Output is correct
44 Correct 30 ms 31696 KB Output is correct
45 Correct 29 ms 31608 KB Output is correct
46 Correct 30 ms 31604 KB Output is correct
47 Correct 30 ms 31736 KB Output is correct
48 Correct 29 ms 31608 KB Output is correct
49 Correct 41 ms 31736 KB Output is correct
50 Correct 30 ms 31608 KB Output is correct
51 Correct 30 ms 31608 KB Output is correct
52 Correct 30 ms 31608 KB Output is correct
53 Correct 30 ms 31608 KB Output is correct
54 Correct 30 ms 31716 KB Output is correct
55 Correct 30 ms 31736 KB Output is correct
56 Correct 30 ms 31676 KB Output is correct
57 Correct 30 ms 31736 KB Output is correct
58 Correct 30 ms 31608 KB Output is correct
59 Correct 29 ms 31624 KB Output is correct
60 Correct 29 ms 31708 KB Output is correct
61 Correct 30 ms 31608 KB Output is correct
62 Correct 29 ms 31736 KB Output is correct
63 Correct 29 ms 31736 KB Output is correct
64 Correct 29 ms 31608 KB Output is correct
65 Correct 332 ms 41528 KB Output is correct
66 Correct 345 ms 41480 KB Output is correct
67 Correct 344 ms 41544 KB Output is correct
68 Correct 343 ms 41468 KB Output is correct
69 Correct 341 ms 41468 KB Output is correct
70 Correct 336 ms 41592 KB Output is correct
71 Correct 332 ms 41464 KB Output is correct
72 Correct 341 ms 41592 KB Output is correct
73 Correct 346 ms 41476 KB Output is correct
74 Correct 334 ms 41564 KB Output is correct
75 Correct 337 ms 41464 KB Output is correct
76 Correct 335 ms 41464 KB Output is correct
77 Correct 353 ms 41480 KB Output is correct
78 Correct 344 ms 41568 KB Output is correct
79 Correct 333 ms 41468 KB Output is correct
80 Correct 332 ms 41464 KB Output is correct
81 Correct 336 ms 41464 KB Output is correct
82 Correct 340 ms 41596 KB Output is correct
83 Correct 337 ms 41592 KB Output is correct
84 Correct 338 ms 41608 KB Output is correct
85 Correct 339 ms 41464 KB Output is correct
86 Correct 348 ms 41472 KB Output is correct
87 Correct 339 ms 41464 KB Output is correct
88 Correct 343 ms 41592 KB Output is correct
89 Correct 337 ms 41468 KB Output is correct
90 Correct 342 ms 41592 KB Output is correct
91 Correct 345 ms 41592 KB Output is correct
92 Correct 358 ms 41464 KB Output is correct
93 Correct 349 ms 41464 KB Output is correct
94 Correct 355 ms 41584 KB Output is correct
95 Correct 356 ms 41472 KB Output is correct
96 Correct 353 ms 41476 KB Output is correct
97 Correct 351 ms 41592 KB Output is correct
98 Correct 347 ms 41464 KB Output is correct
99 Correct 346 ms 41436 KB Output is correct
100 Correct 347 ms 41464 KB Output is correct
101 Correct 358 ms 41464 KB Output is correct
102 Correct 350 ms 41472 KB Output is correct