oj.uz

Submission #1050802

# Submission time Handle Problem Language Result Execution time Memory
1050802 2024-08-09T14:39:17 Z manhlinh1501 Bali Sculptures (APIO15_sculpture) C++17
71 / 100
 145 ms 35252 KB 
#include <bits/stdc++.h>
using namespace std;
using i64 = long long;
const i64 oo64 = LLONG_MAX;
const int MAXN = 2050;

int N, L, R;
int a[MAXN];
i64 ans = oo64;

namespace subtask1 {
    bool is_subtask() {
        return N <= 20;
    }
    void solution() {
        if(is_subtask() == false) return;
        for(int mask = 0; mask < (1 << N); mask++) {
            vector<i64> b;
            b.emplace_back(0);
            int cb = (mask >> 0 & 1);
            for(int i = 0; i < N; i++) {
                if((mask >> i & 1) == cb)
                    b.back() += a[i + 1];
                else {
                    b.emplace_back(a[i + 1]);
                    cb ^= 1;
                }
            }
            i64 res = 0;
            for(i64 x : b) res |= x;
            if(L <= b.size() and b.size() <= R)
                ans = min(ans, res);
        }
        cout << ans;
        exit(0);
    }
}

namespace subtask23 {
    int dpL[MAXN][MAXN];
    int dpR[MAXN][MAXN];

    bool is_subtask() {
        for(int i = 1; i <= N; i++) {
            if(a[i] > 20) return false;
        }
        return N <= 100;
    }
    void solution() {
        if(is_subtask() == false) return;
        memset(dpL, 0x3f, sizeof dpL);
        memset(dpR, -0x3f, sizeof dpR);
        dpL[0][0] = dpR[0][0] = 0;
        for(int i = 1; i <= N; i++) {
            int cur = 0;
            for(int j = i; j >= 1; j--) {
                cur += a[j];
                for(int mask = 0; mask < (1 << 11); mask++) {
                    dpL[i][mask | cur] = min(dpL[i][mask | cur], dpL[j - 1][mask] + 1);
                    dpR[i][mask | cur] = max(dpR[i][mask | cur], dpR[j - 1][mask] + 1);
                }
            }
        }
        for(int mask = 0; mask < (1 << 11); mask++) {
            if(dpL[N][mask] > dpR[N][mask]) continue;
            if((L <= dpL[N][mask] and dpR[N][mask] <= R) or
                    (L <= dpL[N][mask] and dpL[N][mask] <= R) or
                    (L <= dpR[N][mask] and dpR[N][mask] <= R))
                cout << mask, exit(0);
        }
        cout << "-1";
        exit(0);
    }
}

namespace subtask4 {
    bool is_subtask() {
        return N <= 100;
    }
    bool dp[MAXN][MAXN];

    bool check(i64 mask) {
        memset(dp, false, sizeof dp);
        dp[0][0] = true;
        for(int i = 1; i <= N; i++) {
            for(int z = 1; z <= i; z++) {
                i64 cur = 0;
                for(int j = i; j >= 1; j--) {
                    cur += a[j];
                    if((mask | cur) == mask)
                        dp[i][z] |= dp[j - 1][z - 1];
                }
            }
        }
        for(int i = L; i <= R; i++) {
            if(dp[N][i]) return true;
        }
        return false;
    }

    void solution() {
        if(is_subtask() == false) return;
        const int B = 50;
        i64 ans = (1LL << B) - 1;
        for(int i = B - 1; i >= 0; i--) {
            if(check(ans - (1LL << i)))
                ans = ans - (1LL << i);
        }
        cout << ans;
        exit(0);
    }
}

namespace subtask5 {
    int dp[MAXN];

    bool is_subtask() {
        return L == 1;
    }

    bool check(i64 mask) {
        memset(dp, 0x3f, sizeof dp);
        dp[0] = 0;
        for(int i = 1; i <= N; i++) {
            i64 cur = 0;
            for(int j = i; j >= 1; j--) {
                cur += a[j];
                if((cur | mask) == mask)
                    dp[i] = min(dp[i], dp[j] + 1);
            }
        }
        return dp[N] <= R;
    }

    void solution() {
        if(is_subtask() == false) return;
        const int B = 50;
        i64 ans = (1LL << B) - 1;
        for(int i = B - 1; i >= 0; i--) {
            if(check(ans - (1LL << i)))
                ans = ans - (1LL << i);
        }
        cout << ans;
        exit(0);
    }
}

signed main() {
#define TASK "code"

    if (fopen(TASK ".inp", "r")) {
        freopen(TASK ".inp", "r", stdin);
        freopen(TASK ".out", "w", stdout);
    }

    ios_base::sync_with_stdio(0);
    cin.tie(0);
    cout.tie(0);

    cin >> N >> L >> R;
    for(int i = 1; i <= N; i++) cin >> a[i];
    subtask1::solution();
    subtask23::solution();
    subtask4::solution();
    subtask5::solution();
    return (0 ^ 0);
}

Compilation message

sculpture.cpp: In function 'void subtask1::solution()':
sculpture.cpp:31:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   31 |             if(L <= b.size() and b.size() <= R)
      |                ~~^~~~~~~~~~~
sculpture.cpp:31:43: warning: comparison of integer expressions of different signedness: 'std::vector<long long int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   31 |             if(L <= b.size() and b.size() <= R)
      |                                  ~~~~~~~~~^~~~
sculpture.cpp: In function 'int main()':
sculpture.cpp:152:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
  152 |         freopen(TASK ".inp", "r", stdin);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~
sculpture.cpp:153:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
  153 |         freopen(TASK ".out", "w", stdout);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~

Subtask #1
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 344 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 4 ms 468 KB Output is correct
7 Correct 15 ms 464 KB Output is correct
8 Correct 128 ms 448 KB Output is correct
9 Correct 126 ms 348 KB Output is correct
10 Correct 142 ms 444 KB Output is correct
11 Correct 145 ms 600 KB Output is correct
12 Correct 125 ms 440 KB Output is correct
13 Correct 126 ms 348 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 0 ms 348 KB Output is correct
17 Correct 0 ms 348 KB Output is correct
18 Correct 0 ms 348 KB Output is correct
19 Correct 4 ms 348 KB Output is correct
20 Correct 15 ms 464 KB Output is correct
21 Correct 131 ms 600 KB Output is correct
22 Correct 126 ms 344 KB Output is correct
23 Correct 126 ms 348 KB Output is correct
24 Correct 127 ms 344 KB Output is correct
25 Correct 127 ms 348 KB Output is correct
26 Correct 127 ms 348 KB Output is correct
27 Correct 0 ms 344 KB Output is correct
28 Correct 1 ms 344 KB Output is correct
29 Correct 1 ms 344 KB Output is correct
30 Correct 62 ms 444 KB Output is correct
31 Correct 131 ms 448 KB Output is correct
32 Correct 125 ms 348 KB Output is correct
33 Correct 127 ms 604 KB Output is correct
34 Correct 126 ms 348 KB Output is correct
35 Correct 137 ms 348 KB Output is correct
36 Correct 126 ms 348 KB Output is correct

Subtask #2
16.0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 1 ms 348 KB Output is correct
6 Correct 4 ms 604 KB Output is correct
7 Correct 15 ms 348 KB Output is correct
8 Correct 127 ms 348 KB Output is correct
9 Correct 131 ms 348 KB Output is correct
10 Correct 131 ms 344 KB Output is correct
11 Correct 137 ms 444 KB Output is correct
12 Correct 126 ms 348 KB Output is correct
13 Correct 128 ms 604 KB Output is correct
14 Correct 0 ms 344 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 0 ms 348 KB Output is correct
17 Correct 0 ms 348 KB Output is correct
18 Correct 0 ms 464 KB Output is correct
19 Correct 4 ms 344 KB Output is correct
20 Correct 15 ms 472 KB Output is correct
21 Correct 129 ms 344 KB Output is correct
22 Correct 134 ms 344 KB Output is correct
23 Correct 126 ms 344 KB Output is correct
24 Correct 136 ms 344 KB Output is correct
25 Correct 127 ms 444 KB Output is correct
26 Correct 131 ms 344 KB Output is correct
27 Correct 5 ms 35160 KB Output is correct
28 Correct 5 ms 35224 KB Output is correct
29 Correct 6 ms 35212 KB Output is correct
30 Correct 7 ms 35220 KB Output is correct
31 Correct 8 ms 35164 KB Output is correct
32 Correct 7 ms 35044 KB Output is correct
33 Correct 8 ms 35164 KB Output is correct
34 Correct 8 ms 35164 KB Output is correct
35 Correct 8 ms 35164 KB Output is correct
36 Correct 8 ms 35164 KB Output is correct

Subtask #3
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 4 ms 348 KB Output is correct
7 Correct 15 ms 472 KB Output is correct
8 Correct 130 ms 348 KB Output is correct
9 Correct 126 ms 344 KB Output is correct
10 Correct 131 ms 348 KB Output is correct
11 Correct 130 ms 348 KB Output is correct
12 Correct 139 ms 448 KB Output is correct
13 Correct 127 ms 348 KB Output is correct
14 Correct 5 ms 35164 KB Output is correct
15 Correct 5 ms 35000 KB Output is correct
16 Correct 6 ms 35252 KB Output is correct
17 Correct 7 ms 35164 KB Output is correct
18 Correct 9 ms 35164 KB Output is correct
19 Correct 8 ms 35244 KB Output is correct
20 Correct 8 ms 35164 KB Output is correct
21 Correct 9 ms 35164 KB Output is correct
22 Correct 8 ms 35240 KB Output is correct
23 Correct 8 ms 35240 KB Output is correct
24 Correct 8 ms 35164 KB Output is correct
25 Correct 11 ms 35248 KB Output is correct
26 Correct 15 ms 35252 KB Output is correct
27 Correct 19 ms 35164 KB Output is correct
28 Correct 22 ms 35244 KB Output is correct
29 Correct 19 ms 35252 KB Output is correct
30 Correct 19 ms 35244 KB Output is correct
31 Correct 22 ms 35240 KB Output is correct
32 Correct 23 ms 35044 KB Output is correct

Subtask #4
25.0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 4 ms 348 KB Output is correct
7 Correct 15 ms 472 KB Output is correct
8 Correct 129 ms 440 KB Output is correct
9 Correct 127 ms 348 KB Output is correct
10 Correct 126 ms 344 KB Output is correct
11 Correct 126 ms 348 KB Output is correct
12 Correct 133 ms 348 KB Output is correct
13 Correct 126 ms 344 KB Output is correct
14 Correct 0 ms 344 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 0 ms 348 KB Output is correct
17 Correct 0 ms 348 KB Output is correct
18 Correct 0 ms 348 KB Output is correct
19 Correct 4 ms 468 KB Output is correct
20 Correct 15 ms 468 KB Output is correct
21 Correct 133 ms 444 KB Output is correct
22 Correct 126 ms 348 KB Output is correct
23 Correct 126 ms 440 KB Output is correct
24 Correct 127 ms 444 KB Output is correct
25 Correct 127 ms 344 KB Output is correct
26 Correct 133 ms 344 KB Output is correct
27 Correct 0 ms 348 KB Output is correct
28 Correct 0 ms 348 KB Output is correct
29 Correct 1 ms 348 KB Output is correct
30 Correct 63 ms 600 KB Output is correct
31 Correct 126 ms 348 KB Output is correct
32 Correct 128 ms 348 KB Output is correct
33 Correct 126 ms 344 KB Output is correct
34 Correct 127 ms 348 KB Output is correct
35 Correct 130 ms 348 KB Output is correct
36 Correct 126 ms 348 KB Output is correct
37 Correct 5 ms 35164 KB Output is correct
38 Correct 5 ms 35160 KB Output is correct
39 Correct 6 ms 35164 KB Output is correct
40 Correct 7 ms 35160 KB Output is correct
41 Correct 8 ms 35224 KB Output is correct
42 Correct 8 ms 35164 KB Output is correct
43 Correct 8 ms 35248 KB Output is correct
44 Correct 8 ms 35164 KB Output is correct
45 Correct 8 ms 35164 KB Output is correct
46 Correct 8 ms 35164 KB Output is correct
47 Correct 10 ms 35044 KB Output is correct
48 Correct 11 ms 35164 KB Output is correct
49 Correct 15 ms 35176 KB Output is correct
50 Correct 19 ms 35052 KB Output is correct
51 Correct 22 ms 35164 KB Output is correct
52 Correct 19 ms 35252 KB Output is correct
53 Correct 19 ms 35024 KB Output is correct
54 Correct 22 ms 35164 KB Output is correct
55 Correct 22 ms 35164 KB Output is correct
56 Correct 6 ms 4700 KB Output is correct
57 Correct 12 ms 4700 KB Output is correct
58 Correct 16 ms 4744 KB Output is correct
59 Correct 20 ms 4700 KB Output is correct
60 Correct 20 ms 4744 KB Output is correct
61 Correct 24 ms 4696 KB Output is correct
62 Correct 25 ms 4744 KB Output is correct
63 Correct 22 ms 4700 KB Output is correct
64 Correct 17 ms 35164 KB Output is correct
65 Correct 6 ms 4700 KB Output is correct
66 Correct 8 ms 4736 KB Output is correct
67 Correct 12 ms 4744 KB Output is correct
68 Correct 16 ms 4884 KB Output is correct
69 Correct 21 ms 4740 KB Output is correct
70 Correct 20 ms 4696 KB Output is correct
71 Correct 20 ms 4700 KB Output is correct
72 Correct 22 ms 4740 KB Output is correct
73 Correct 21 ms 4740 KB Output is correct
74 Correct 22 ms 4700 KB Output is correct

Subtask #5
0 / 29.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 464 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 464 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 4 ms 468 KB Output is correct
7 Correct 17 ms 404 KB Output is correct
8 Correct 139 ms 348 KB Output is correct
9 Correct 126 ms 344 KB Output is correct
10 Correct 129 ms 344 KB Output is correct
11 Correct 125 ms 344 KB Output is correct
12 Correct 129 ms 592 KB Output is correct
13 Correct 127 ms 444 KB Output is correct
14 Correct 0 ms 344 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 1 ms 348 KB Output is correct
17 Correct 62 ms 444 KB Output is correct
18 Correct 128 ms 440 KB Output is correct
19 Correct 127 ms 348 KB Output is correct
20 Correct 125 ms 348 KB Output is correct
21 Correct 128 ms 348 KB Output is correct
22 Correct 132 ms 348 KB Output is correct
23 Correct 127 ms 348 KB Output is correct
24 Correct 5 ms 35164 KB Output is correct
25 Correct 5 ms 35164 KB Output is correct
26 Correct 6 ms 35164 KB Output is correct
27 Correct 7 ms 35228 KB Output is correct
28 Correct 8 ms 35244 KB Output is correct
29 Correct 8 ms 35248 KB Output is correct
30 Correct 8 ms 35052 KB Output is correct
31 Correct 9 ms 35160 KB Output is correct
32 Correct 9 ms 35164 KB Output is correct
33 Correct 8 ms 35164 KB Output is correct
34 Correct 8 ms 35236 KB Output is correct
35 Correct 11 ms 35160 KB Output is correct
36 Correct 14 ms 35164 KB Output is correct
37 Correct 19 ms 35164 KB Output is correct
38 Correct 22 ms 35160 KB Output is correct
39 Correct 18 ms 35016 KB Output is correct
40 Correct 19 ms 35164 KB Output is correct
41 Correct 21 ms 35240 KB Output is correct
42 Correct 22 ms 35164 KB Output is correct
43 Correct 6 ms 4700 KB Output is correct
44 Correct 12 ms 4700 KB Output is correct
45 Correct 17 ms 4700 KB Output is correct
46 Correct 21 ms 4744 KB Output is correct
47 Correct 20 ms 4700 KB Output is correct
48 Correct 20 ms 4748 KB Output is correct
49 Correct 21 ms 4700 KB Output is correct
50 Correct 22 ms 4744 KB Output is correct
51 Incorrect 1 ms 348 KB Output isn't correct
52 Halted 0 ms 0 KB -