oj.uz

Submission #688476

# Submission time Handle Problem Language Result Execution time Memory
688476 2023-01-27T13:54:44 Z AJR07 Lamps (JOI19_lamps) C++17
100 / 100
 156 ms 161240 KB 
#include <bits/stdc++.h>
using namespace std;
#ifdef DEBUG
#define DBGRUN(stmt) stmt
#define DBG1(x) cout << #x << ": " << (x) << endl
#define DBG2(x, y) cout << #x << ": " << (x) << ", " << #y << ": " << (y) << endl
#define DBG3(x, y, z) cout << #x << ": " << (x) << ", " << #y << ": " << (y) << ", " << #z << ": " << (z) << endl
#define DBG4(w, x, y, z) cout << #w << ": " << (w) << ", " << #x << ": " << (x) << ", " << #y << ": " << (y) << ", " << #z << ": " << (z) << endl
#define DBG_ARR(a, e) cout << #a << ": "; for (int i = 0; i < e; i++) cout << a[i] << ' '; cout << endl
#define DBG_ARR2D(a, s1, e1, s2, e2) cout << #a << ": " << endl; for (int i = s1; i < e1; i++) { for (int j = s2; j < e2; j++) cout << a[i][j] << ' '; cout << '\n'; }cout << endl
#define DBG_VEC(v) cout << #v << ": "; for (auto i : v) cout << i << ' '; cout << endl
#define DBG_HERE cout << "reached line: " << __LINE__ << endl
#else
#define DBGRUN(stmt)
#define DBG1(x)
#define DBG2(x, y)
#define DBG3(x, y, z)
#define DBG4(w, x, y, z)
#define DBG_ARR(a, e)
#define DBG_ARR2D(a, s1, e1, s2, e2)
#define DBG_VEC(v)
#define DBG_HERE
#endif
#define int long long
#define f first
#define s second
#define pii pair<int, int>
#define FOR(a, b, c) for (int(a) = (b); (a) < (c); ++(a)) 
#define FORN(a, b, c) for (int(a) = (b); (a) <= (c); ++(a))
#define FORR(a, b, c) for (int(a) = (b); (a) >= (c); --(a))
#define ALLV(v) v.begin(), v.end() 
#define ALLA(arr, sz) arr, arr + sz
#define SORT(v) sort(ALL(v)) 
#define REVERSE(v) reverse(ALL(v))
#define SORTA(arr, sz) sort(ALLA(arr, sz)) 
#define REVERSEA(arr, sz) reverse(ALLA(arr, sz))
template <typename A, typename B> ostream& operator<<(ostream& out, const pair<A, B>& a) { out << "(" << a.first << ", " << a.second << ")"; return out; }
template<typename ...Ts, size_t ...Is> ostream& println_tuple_impl(ostream& os, tuple<Ts...> tuple, index_sequence<Is...>) { static_assert(sizeof...(Is) == sizeof...(Ts), "Indices must have same number of elements as tuple types!"); static_assert(sizeof...(Ts) > 0, "Cannot insert empty tuple into stream."); auto last = sizeof...(Ts) - 1; os << "("; return ((os << get<Is>(tuple) << (Is != last ? ", " : ")\n")), ...); }
template<typename ...Ts> ostream& operator<<(ostream& os, const tuple<Ts...>& tuple) { return println_tuple_impl(os, tuple, index_sequence_for<Ts...>{}); }

int N, memo[1000010][2][2][2];
vector<bool> AA, BB;
string A, B;

int dp(int idx, bool toggleOpen, bool rangeSetOpen, bool toggleFirst) {
    if (memo[idx][toggleOpen][rangeSetOpen][toggleFirst] != -1)
        return memo[idx][toggleOpen][rangeSetOpen][toggleFirst];
    if (idx == N) return 0;

    int res = 1e18;
    if (!toggleOpen && !rangeSetOpen) {
        // don't do any operations 
        if (AA[idx] == BB[idx]) res = min(res, dp(idx + 1, false, false, false));
        // do toggle
        if (AA[idx] == !BB[idx]) res = min(res, dp(idx + 1, true, false, true) + 1);
        // do range_set
        res = min(res, dp(idx + 1, false, true, false) + 1);
        // do toggle and range_set, but in different orders
        res = min(res, dp(idx + 1, true, true, true) + 2);
        res = min(res, dp(idx + 1, true, true, false) + 2);
    }

    if (!toggleOpen && rangeSetOpen) {
        // close rangeSetOpen
        if (AA[idx] == BB[idx]) res = min(res, dp(idx + 1, false, false, false));
        // do toggle & close rangeSetOpen
        if (AA[idx] == !BB[idx]) res = min(res, dp(idx + 1, true, false, true) + 1);
        // do rangSetOpen as it is
        if (BB[idx] == BB[idx - 1]) res = min(res, dp(idx + 1, false, true, false));
        // do toggle and range_set
        if (!BB[idx - 1] == BB[idx]) res = min(res, dp(idx + 1, true, true, false) + 1);
    }

    if (toggleOpen && !rangeSetOpen) {
        // close toggleOpen
        if (AA[idx] == BB[idx]) res = min(res, dp(idx + 1, false, false, false));
        // do rangeSetOpen & close toggle
        res = min(res, dp(idx + 1, false, true, false) + 1);
        // do toggle as it is
        if (AA[idx] == !BB[idx]) res = min(res, dp(idx + 1, true, false, true));
        // do toggle and range_set
        res = min(res, dp(idx + 1, true, true, true) + 1);
    }

    if (toggleOpen && rangeSetOpen) {
        // do it as it is
        if (BB[idx - 1] == BB[idx]) res = min(res, dp(idx + 1, true, true, true));
        // close rangeSetOpen
        if (AA[idx] == !BB[idx]) res = min(res, dp(idx + 1, true, false, true));
        // close toggle
        if (BB[idx] == !BB[idx - 1]) res = min(res, dp(idx + 1, false, true, false));
        // close both
        if (AA[idx] == BB[idx]) res = min(res, dp(idx + 1, false, false, false));
    }

    memo[idx][toggleOpen][rangeSetOpen][toggleFirst] = res;
    return res;
}

int32_t main() {
    memset(memo, -1, sizeof memo);
    ios_base::sync_with_stdio(false);
    cin.tie(NULL);
    cout.tie(NULL);
    cin >> N;
    cin >> A >> B;
    for (auto i : A) AA.push_back(i - '0');
    for (auto i : B) BB.push_back(i - '0');

    cout << dp(0, false, false, false);
}

Subtask #1
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 26 ms 62932 KB Output is correct
2 Correct 24 ms 62932 KB Output is correct
3 Correct 27 ms 62808 KB Output is correct
4 Correct 24 ms 62932 KB Output is correct
5 Correct 24 ms 62928 KB Output is correct
6 Correct 27 ms 62932 KB Output is correct
7 Correct 31 ms 62924 KB Output is correct
8 Correct 24 ms 62932 KB Output is correct
9 Correct 23 ms 62868 KB Output is correct
10 Correct 24 ms 62856 KB Output is correct
11 Correct 24 ms 62836 KB Output is correct
12 Correct 25 ms 62920 KB Output is correct
13 Correct 24 ms 62936 KB Output is correct
14 Correct 26 ms 62872 KB Output is correct
15 Correct 28 ms 62816 KB Output is correct
16 Correct 26 ms 62972 KB Output is correct
17 Correct 26 ms 62932 KB Output is correct
18 Correct 25 ms 62932 KB Output is correct
19 Correct 25 ms 62920 KB Output is correct
20 Correct 24 ms 62932 KB Output is correct
21 Correct 25 ms 62932 KB Output is correct
22 Correct 25 ms 62816 KB Output is correct
23 Correct 26 ms 62820 KB Output is correct
24 Correct 24 ms 62916 KB Output is correct
25 Correct 25 ms 62920 KB Output is correct
26 Correct 24 ms 62896 KB Output is correct
27 Correct 24 ms 62940 KB Output is correct
28 Correct 28 ms 62880 KB Output is correct
29 Correct 27 ms 62828 KB Output is correct
30 Correct 25 ms 62888 KB Output is correct
31 Correct 25 ms 62888 KB Output is correct
32 Correct 25 ms 62872 KB Output is correct
33 Correct 24 ms 62848 KB Output is correct
34 Correct 25 ms 62924 KB Output is correct

Subtask #2
41.0 / 41.0

# Verdict Execution time Memory Grader output
1 Correct 26 ms 62932 KB Output is correct
2 Correct 24 ms 62932 KB Output is correct
3 Correct 27 ms 62808 KB Output is correct
4 Correct 24 ms 62932 KB Output is correct
5 Correct 24 ms 62928 KB Output is correct
6 Correct 27 ms 62932 KB Output is correct
7 Correct 31 ms 62924 KB Output is correct
8 Correct 24 ms 62932 KB Output is correct
9 Correct 23 ms 62868 KB Output is correct
10 Correct 24 ms 62856 KB Output is correct
11 Correct 24 ms 62836 KB Output is correct
12 Correct 25 ms 62920 KB Output is correct
13 Correct 24 ms 62936 KB Output is correct
14 Correct 26 ms 62872 KB Output is correct
15 Correct 28 ms 62816 KB Output is correct
16 Correct 26 ms 62972 KB Output is correct
17 Correct 26 ms 62932 KB Output is correct
18 Correct 25 ms 62932 KB Output is correct
19 Correct 25 ms 62920 KB Output is correct
20 Correct 24 ms 62932 KB Output is correct
21 Correct 25 ms 62932 KB Output is correct
22 Correct 25 ms 62816 KB Output is correct
23 Correct 26 ms 62820 KB Output is correct
24 Correct 24 ms 62916 KB Output is correct
25 Correct 25 ms 62920 KB Output is correct
26 Correct 24 ms 62896 KB Output is correct
27 Correct 24 ms 62940 KB Output is correct
28 Correct 28 ms 62880 KB Output is correct
29 Correct 27 ms 62828 KB Output is correct
30 Correct 25 ms 62888 KB Output is correct
31 Correct 25 ms 62888 KB Output is correct
32 Correct 25 ms 62872 KB Output is correct
33 Correct 24 ms 62848 KB Output is correct
34 Correct 25 ms 62924 KB Output is correct
35 Correct 26 ms 63052 KB Output is correct
36 Correct 29 ms 63060 KB Output is correct
37 Correct 27 ms 63020 KB Output is correct
38 Correct 26 ms 63060 KB Output is correct
39 Correct 27 ms 63052 KB Output is correct
40 Correct 26 ms 63132 KB Output is correct
41 Correct 28 ms 63048 KB Output is correct
42 Correct 27 ms 63068 KB Output is correct
43 Correct 27 ms 63020 KB Output is correct
44 Correct 27 ms 63064 KB Output is correct
45 Correct 26 ms 63052 KB Output is correct
46 Correct 26 ms 63056 KB Output is correct
47 Correct 27 ms 63052 KB Output is correct
48 Correct 28 ms 63076 KB Output is correct
49 Correct 26 ms 63080 KB Output is correct
50 Correct 28 ms 63052 KB Output is correct
51 Correct 26 ms 63032 KB Output is correct
52 Correct 26 ms 63060 KB Output is correct
53 Correct 27 ms 63040 KB Output is correct
54 Correct 26 ms 63012 KB Output is correct
55 Correct 26 ms 62992 KB Output is correct
56 Correct 28 ms 63064 KB Output is correct
57 Correct 24 ms 63048 KB Output is correct
58 Correct 25 ms 63092 KB Output is correct

Subtask #3
4.0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 24 ms 62932 KB Output is correct
2 Correct 25 ms 62908 KB Output is correct
3 Correct 24 ms 62940 KB Output is correct
4 Correct 25 ms 62932 KB Output is correct
5 Correct 24 ms 62932 KB Output is correct
6 Correct 28 ms 62924 KB Output is correct
7 Correct 143 ms 161132 KB Output is correct
8 Correct 145 ms 161168 KB Output is correct
9 Correct 141 ms 161168 KB Output is correct
10 Correct 139 ms 161064 KB Output is correct
11 Correct 149 ms 161048 KB Output is correct
12 Correct 129 ms 161204 KB Output is correct
13 Correct 133 ms 161140 KB Output is correct
14 Correct 141 ms 161136 KB Output is correct

Subtask #4
49.0 / 49.0

# Verdict Execution time Memory Grader output
1 Correct 26 ms 62932 KB Output is correct
2 Correct 24 ms 62932 KB Output is correct
3 Correct 27 ms 62808 KB Output is correct
4 Correct 24 ms 62932 KB Output is correct
5 Correct 24 ms 62928 KB Output is correct
6 Correct 27 ms 62932 KB Output is correct
7 Correct 31 ms 62924 KB Output is correct
8 Correct 24 ms 62932 KB Output is correct
9 Correct 23 ms 62868 KB Output is correct
10 Correct 24 ms 62856 KB Output is correct
11 Correct 24 ms 62836 KB Output is correct
12 Correct 25 ms 62920 KB Output is correct
13 Correct 24 ms 62936 KB Output is correct
14 Correct 26 ms 62872 KB Output is correct
15 Correct 28 ms 62816 KB Output is correct
16 Correct 26 ms 62972 KB Output is correct
17 Correct 26 ms 62932 KB Output is correct
18 Correct 25 ms 62932 KB Output is correct
19 Correct 25 ms 62920 KB Output is correct
20 Correct 24 ms 62932 KB Output is correct
21 Correct 25 ms 62932 KB Output is correct
22 Correct 25 ms 62816 KB Output is correct
23 Correct 26 ms 62820 KB Output is correct
24 Correct 24 ms 62916 KB Output is correct
25 Correct 25 ms 62920 KB Output is correct
26 Correct 24 ms 62896 KB Output is correct
27 Correct 24 ms 62940 KB Output is correct
28 Correct 28 ms 62880 KB Output is correct
29 Correct 27 ms 62828 KB Output is correct
30 Correct 25 ms 62888 KB Output is correct
31 Correct 25 ms 62888 KB Output is correct
32 Correct 25 ms 62872 KB Output is correct
33 Correct 24 ms 62848 KB Output is correct
34 Correct 25 ms 62924 KB Output is correct
35 Correct 26 ms 63052 KB Output is correct
36 Correct 29 ms 63060 KB Output is correct
37 Correct 27 ms 63020 KB Output is correct
38 Correct 26 ms 63060 KB Output is correct
39 Correct 27 ms 63052 KB Output is correct
40 Correct 26 ms 63132 KB Output is correct
41 Correct 28 ms 63048 KB Output is correct
42 Correct 27 ms 63068 KB Output is correct
43 Correct 27 ms 63020 KB Output is correct
44 Correct 27 ms 63064 KB Output is correct
45 Correct 26 ms 63052 KB Output is correct
46 Correct 26 ms 63056 KB Output is correct
47 Correct 27 ms 63052 KB Output is correct
48 Correct 28 ms 63076 KB Output is correct
49 Correct 26 ms 63080 KB Output is correct
50 Correct 28 ms 63052 KB Output is correct
51 Correct 26 ms 63032 KB Output is correct
52 Correct 26 ms 63060 KB Output is correct
53 Correct 27 ms 63040 KB Output is correct
54 Correct 26 ms 63012 KB Output is correct
55 Correct 26 ms 62992 KB Output is correct
56 Correct 28 ms 63064 KB Output is correct
57 Correct 24 ms 63048 KB Output is correct
58 Correct 25 ms 63092 KB Output is correct
59 Correct 24 ms 62932 KB Output is correct
60 Correct 25 ms 62908 KB Output is correct
61 Correct 24 ms 62940 KB Output is correct
62 Correct 25 ms 62932 KB Output is correct
63 Correct 24 ms 62932 KB Output is correct
64 Correct 28 ms 62924 KB Output is correct
65 Correct 143 ms 161132 KB Output is correct
66 Correct 145 ms 161168 KB Output is correct
67 Correct 141 ms 161168 KB Output is correct
68 Correct 139 ms 161064 KB Output is correct
69 Correct 149 ms 161048 KB Output is correct
70 Correct 129 ms 161204 KB Output is correct
71 Correct 133 ms 161140 KB Output is correct
72 Correct 141 ms 161136 KB Output is correct
73 Correct 137 ms 161120 KB Output is correct
74 Correct 143 ms 161124 KB Output is correct
75 Correct 143 ms 161136 KB Output is correct
76 Correct 141 ms 161068 KB Output is correct
77 Correct 145 ms 161176 KB Output is correct
78 Correct 143 ms 161080 KB Output is correct
79 Correct 140 ms 161048 KB Output is correct
80 Correct 139 ms 161164 KB Output is correct
81 Correct 145 ms 161128 KB Output is correct
82 Correct 145 ms 161164 KB Output is correct
83 Correct 138 ms 161140 KB Output is correct
84 Correct 142 ms 161236 KB Output is correct
85 Correct 145 ms 161076 KB Output is correct
86 Correct 139 ms 161048 KB Output is correct
87 Correct 142 ms 161124 KB Output is correct
88 Correct 143 ms 161156 KB Output is correct
89 Correct 140 ms 161172 KB Output is correct
90 Correct 141 ms 161140 KB Output is correct
91 Correct 142 ms 161168 KB Output is correct
92 Correct 151 ms 161228 KB Output is correct
93 Correct 153 ms 161108 KB Output is correct
94 Correct 152 ms 161164 KB Output is correct
95 Correct 149 ms 161136 KB Output is correct
96 Correct 156 ms 161240 KB Output is correct
97 Correct 152 ms 161172 KB Output is correct
98 Correct 154 ms 161060 KB Output is correct
99 Correct 154 ms 161148 KB Output is correct
100 Correct 152 ms 161040 KB Output is correct
101 Correct 154 ms 161052 KB Output is correct
102 Correct 154 ms 161164 KB Output is correct