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Submission #1050786

# Submission time Handle Problem Language Result Execution time Memory
1050786 2024-08-09T14:28:33 Z manhlinh1501 Bali Sculptures (APIO15_sculpture) C++17
46 / 100
 151 ms 35420 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];
                }
            }
        }
        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);
    }
}

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();
    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:118:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
  118 |         freopen(TASK ".inp", "r", stdin);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~
sculpture.cpp:119:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
  119 |         freopen(TASK ".out", "w", stdout);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~

Subtask #1
9.0 / 9.0

# 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 464 KB Output is correct
8 Correct 127 ms 348 KB Output is correct
9 Correct 138 ms 348 KB Output is correct
10 Correct 129 ms 344 KB Output is correct
11 Correct 125 ms 348 KB Output is correct
12 Correct 126 ms 436 KB Output is correct
13 Correct 129 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 5 ms 348 KB Output is correct
20 Correct 15 ms 460 KB Output is correct
21 Correct 132 ms 344 KB Output is correct
22 Correct 133 ms 344 KB Output is correct
23 Correct 126 ms 448 KB Output is correct
24 Correct 138 ms 344 KB Output is correct
25 Correct 146 ms 348 KB Output is correct
26 Correct 133 ms 440 KB Output is correct
27 Correct 0 ms 344 KB Output is correct
28 Correct 0 ms 348 KB Output is correct
29 Correct 1 ms 348 KB Output is correct
30 Correct 62 ms 348 KB Output is correct
31 Correct 126 ms 348 KB Output is correct
32 Correct 126 ms 348 KB Output is correct
33 Correct 141 ms 348 KB Output is correct
34 Correct 141 ms 348 KB Output is correct
35 Correct 131 ms 348 KB Output is correct
36 Correct 127 ms 348 KB Output is correct

Subtask #2
16.0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 1 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 16 ms 468 KB Output is correct
8 Correct 125 ms 348 KB Output is correct
9 Correct 128 ms 348 KB Output is correct
10 Correct 126 ms 348 KB Output is correct
11 Correct 131 ms 344 KB Output is correct
12 Correct 125 ms 440 KB Output is correct
13 Correct 127 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 348 KB Output is correct
20 Correct 15 ms 348 KB Output is correct
21 Correct 145 ms 440 KB Output is correct
22 Correct 131 ms 348 KB Output is correct
23 Correct 126 ms 436 KB Output is correct
24 Correct 127 ms 440 KB Output is correct
25 Correct 132 ms 348 KB Output is correct
26 Correct 125 ms 344 KB Output is correct
27 Correct 5 ms 35164 KB Output is correct
28 Correct 5 ms 35164 KB Output is correct
29 Correct 7 ms 35208 KB Output is correct
30 Correct 7 ms 35164 KB Output is correct
31 Correct 8 ms 35232 KB Output is correct
32 Correct 8 ms 35236 KB Output is correct
33 Correct 8 ms 35232 KB Output is correct
34 Correct 9 ms 35164 KB Output is correct
35 Correct 8 ms 35164 KB Output is correct
36 Correct 9 ms 35164 KB Output is correct

Subtask #3
21.0 / 21.0

# 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 0 ms 348 KB Output is correct
6 Correct 4 ms 348 KB Output is correct
7 Correct 18 ms 348 KB Output is correct
8 Correct 146 ms 436 KB Output is correct
9 Correct 127 ms 348 KB Output is correct
10 Correct 126 ms 348 KB Output is correct
11 Correct 138 ms 592 KB Output is correct
12 Correct 132 ms 436 KB Output is correct
13 Correct 132 ms 348 KB Output is correct
14 Correct 5 ms 35164 KB Output is correct
15 Correct 5 ms 35160 KB Output is correct
16 Correct 7 ms 35164 KB Output is correct
17 Correct 8 ms 35164 KB Output is correct
18 Correct 8 ms 35164 KB Output is correct
19 Correct 8 ms 35028 KB Output is correct
20 Correct 7 ms 35236 KB Output is correct
21 Correct 9 ms 35164 KB Output is correct
22 Correct 8 ms 35164 KB Output is correct
23 Correct 8 ms 35056 KB Output is correct
24 Correct 9 ms 35164 KB Output is correct
25 Correct 11 ms 35232 KB Output is correct
26 Correct 15 ms 35164 KB Output is correct
27 Correct 19 ms 35164 KB Output is correct
28 Correct 22 ms 35164 KB Output is correct
29 Correct 18 ms 35164 KB Output is correct
30 Correct 19 ms 35236 KB Output is correct
31 Correct 21 ms 35164 KB Output is correct
32 Correct 21 ms 35232 KB Output is correct

Subtask #4
0 / 25.0

# 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 0 ms 348 KB Output is correct
6 Correct 4 ms 348 KB Output is correct
7 Correct 18 ms 464 KB Output is correct
8 Correct 126 ms 348 KB Output is correct
9 Correct 127 ms 440 KB Output is correct
10 Correct 151 ms 348 KB Output is correct
11 Correct 136 ms 344 KB Output is correct
12 Correct 126 ms 444 KB Output is correct
13 Correct 125 ms 344 KB Output is correct
14 Correct 1 ms 344 KB Output is correct
15 Correct 0 ms 344 KB Output is correct
16 Correct 0 ms 348 KB Output is correct
17 Correct 1 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 18 ms 348 KB Output is correct
21 Correct 126 ms 344 KB Output is correct
22 Correct 127 ms 348 KB Output is correct
23 Correct 125 ms 344 KB Output is correct
24 Correct 127 ms 348 KB Output is correct
25 Correct 129 ms 348 KB Output is correct
26 Correct 126 ms 344 KB Output is correct
27 Correct 0 ms 344 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 344 KB Output is correct
31 Correct 126 ms 344 KB Output is correct
32 Correct 126 ms 348 KB Output is correct
33 Correct 126 ms 348 KB Output is correct
34 Correct 132 ms 600 KB Output is correct
35 Correct 128 ms 344 KB Output is correct
36 Correct 126 ms 440 KB Output is correct
37 Correct 5 ms 35160 KB Output is correct
38 Correct 5 ms 35164 KB Output is correct
39 Correct 6 ms 35236 KB Output is correct
40 Correct 7 ms 35164 KB Output is correct
41 Correct 10 ms 35420 KB Output is correct
42 Correct 7 ms 35236 KB Output is correct
43 Correct 8 ms 35164 KB Output is correct
44 Correct 8 ms 35160 KB Output is correct
45 Correct 8 ms 35164 KB Output is correct
46 Correct 8 ms 35096 KB Output is correct
47 Correct 8 ms 35240 KB Output is correct
48 Correct 12 ms 35164 KB Output is correct
49 Correct 15 ms 35164 KB Output is correct
50 Correct 18 ms 35236 KB Output is correct
51 Correct 22 ms 35236 KB Output is correct
52 Correct 19 ms 35232 KB Output is correct
53 Correct 19 ms 35164 KB Output is correct
54 Correct 22 ms 35164 KB Output is correct
55 Correct 22 ms 35164 KB Output is correct
56 Incorrect 7 ms 4696 KB Output isn't correct
57 Halted 0 ms 0 KB -

Subtask #5
0 / 29.0

# 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 468 KB Output is correct
7 Correct 15 ms 344 KB Output is correct
8 Correct 131 ms 436 KB Output is correct
9 Correct 128 ms 348 KB Output is correct
10 Correct 139 ms 596 KB Output is correct
11 Correct 129 ms 344 KB Output is correct
12 Correct 127 ms 344 KB Output is correct
13 Correct 128 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 1 ms 344 KB Output is correct
17 Correct 62 ms 440 KB Output is correct
18 Correct 129 ms 348 KB Output is correct
19 Correct 133 ms 344 KB Output is correct
20 Correct 134 ms 444 KB Output is correct
21 Correct 127 ms 348 KB Output is correct
22 Correct 128 ms 348 KB Output is correct
23 Correct 151 ms 344 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 35160 KB Output is correct
27 Correct 7 ms 35164 KB Output is correct
28 Correct 8 ms 35232 KB Output is correct
29 Correct 7 ms 35068 KB Output is correct
30 Correct 8 ms 35164 KB Output is correct
31 Correct 8 ms 35164 KB Output is correct
32 Correct 8 ms 35164 KB Output is correct
33 Correct 8 ms 35048 KB Output is correct
34 Correct 9 ms 35160 KB Output is correct
35 Correct 11 ms 35232 KB Output is correct
36 Correct 15 ms 35164 KB Output is correct
37 Correct 20 ms 35236 KB Output is correct
38 Correct 26 ms 35160 KB Output is correct
39 Correct 19 ms 35164 KB Output is correct
40 Correct 21 ms 35160 KB Output is correct
41 Correct 28 ms 35164 KB Output is correct
42 Correct 22 ms 35160 KB Output is correct
43 Incorrect 7 ms 4696 KB Output isn't correct
44 Halted 0 ms 0 KB -