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답안 #1050780

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
1050780 2024-08-09T14:22:00 Z manhlinh1501 Bali Sculptures (APIO15_sculpture) C++17
46 / 100
 148 ms 35416 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(int mask) {
        memset(dp, 0, sizeof dp);
        dp[0][0] = true;
        for(int i = 1; i <= N; i++) {
            i64 cur = 0;
            for(int j = i; j >= 1; j--) {
                cur += a[j];
                if((mask | a[j]) == mask) {
                    for(int z = 1; z <= R; z++)
                        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);
    }
}

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

# 결과 실행 시간 메모리 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 348 KB Output is correct
7 Correct 15 ms 464 KB Output is correct
8 Correct 132 ms 436 KB Output is correct
9 Correct 128 ms 436 KB Output is correct
10 Correct 129 ms 348 KB Output is correct
11 Correct 127 ms 440 KB Output is correct
12 Correct 130 ms 436 KB Output is correct
13 Correct 131 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 129 ms 348 KB Output is correct
22 Correct 139 ms 348 KB Output is correct
23 Correct 142 ms 344 KB Output is correct
24 Correct 129 ms 344 KB Output is correct
25 Correct 127 ms 436 KB Output is correct
26 Correct 134 ms 348 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 65 ms 348 KB Output is correct
31 Correct 134 ms 440 KB Output is correct
32 Correct 144 ms 344 KB Output is correct
33 Correct 127 ms 444 KB Output is correct
34 Correct 127 ms 348 KB Output is correct
35 Correct 133 ms 348 KB Output is correct
36 Correct 131 ms 348 KB Output is correct

Subtask #2
16.0 / 16.0

# 결과 실행 시간 메모리 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 1 ms 344 KB Output is correct
6 Correct 4 ms 348 KB Output is correct
7 Correct 19 ms 348 KB Output is correct
8 Correct 127 ms 344 KB Output is correct
9 Correct 132 ms 348 KB Output is correct
10 Correct 148 ms 348 KB Output is correct
11 Correct 134 ms 440 KB Output is correct
12 Correct 127 ms 348 KB Output is correct
13 Correct 129 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 138 ms 348 KB Output is correct
22 Correct 147 ms 344 KB Output is correct
23 Correct 134 ms 436 KB Output is correct
24 Correct 127 ms 348 KB Output is correct
25 Correct 129 ms 348 KB Output is correct
26 Correct 131 ms 344 KB Output is correct
27 Correct 4 ms 35164 KB Output is correct
28 Correct 5 ms 35240 KB Output is correct
29 Correct 6 ms 35164 KB Output is correct
30 Correct 7 ms 35228 KB Output is correct
31 Correct 8 ms 35232 KB Output is correct
32 Correct 8 ms 35164 KB Output is correct
33 Correct 8 ms 35164 KB Output is correct
34 Correct 9 ms 35160 KB Output is correct
35 Correct 9 ms 35164 KB Output is correct
36 Correct 8 ms 35164 KB Output is correct

Subtask #3
21.0 / 21.0

# 결과 실행 시간 메모리 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 15 ms 460 KB Output is correct
8 Correct 130 ms 348 KB Output is correct
9 Correct 128 ms 344 KB Output is correct
10 Correct 135 ms 344 KB Output is correct
11 Correct 136 ms 436 KB Output is correct
12 Correct 129 ms 344 KB Output is correct
13 Correct 133 ms 444 KB Output is correct
14 Correct 4 ms 35160 KB Output is correct
15 Correct 5 ms 35164 KB Output is correct
16 Correct 6 ms 35240 KB Output is correct
17 Correct 8 ms 35416 KB Output is correct
18 Correct 8 ms 35164 KB Output is correct
19 Correct 8 ms 35160 KB Output is correct
20 Correct 8 ms 35232 KB Output is correct
21 Correct 8 ms 35164 KB Output is correct
22 Correct 8 ms 35224 KB Output is correct
23 Correct 9 ms 35164 KB Output is correct
24 Correct 9 ms 35236 KB Output is correct
25 Correct 11 ms 35124 KB Output is correct
26 Correct 16 ms 35160 KB Output is correct
27 Correct 19 ms 35160 KB Output is correct
28 Correct 22 ms 35164 KB Output is correct
29 Correct 19 ms 35160 KB Output is correct
30 Correct 22 ms 35232 KB Output is correct
31 Correct 22 ms 35164 KB Output is correct
32 Correct 22 ms 35160 KB Output is correct

Subtask #4
0 / 25.0

# 결과 실행 시간 메모리 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 464 KB Output is correct
7 Correct 16 ms 348 KB Output is correct
8 Correct 129 ms 348 KB Output is correct
9 Correct 128 ms 344 KB Output is correct
10 Correct 140 ms 436 KB Output is correct
11 Correct 141 ms 348 KB Output is correct
12 Correct 136 ms 348 KB Output is correct
13 Correct 127 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 1 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 126 ms 440 KB Output is correct
22 Correct 127 ms 348 KB Output is correct
23 Correct 127 ms 348 KB Output is correct
24 Correct 131 ms 452 KB Output is correct
25 Correct 126 ms 444 KB Output is correct
26 Correct 127 ms 348 KB Output is correct
27 Correct 1 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 62 ms 444 KB Output is correct
31 Correct 133 ms 344 KB Output is correct
32 Correct 140 ms 348 KB Output is correct
33 Correct 128 ms 344 KB Output is correct
34 Correct 142 ms 348 KB Output is correct
35 Correct 144 ms 348 KB Output is correct
36 Correct 129 ms 444 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 35216 KB Output is correct
40 Correct 7 ms 35232 KB Output is correct
41 Correct 9 ms 35164 KB Output is correct
42 Correct 8 ms 35240 KB Output is correct
43 Correct 8 ms 35164 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 35228 KB Output is correct
47 Correct 8 ms 35164 KB Output is correct
48 Correct 11 ms 35164 KB Output is correct
49 Correct 15 ms 35240 KB Output is correct
50 Correct 19 ms 35164 KB Output is correct
51 Correct 22 ms 35032 KB Output is correct
52 Correct 19 ms 35164 KB Output is correct
53 Correct 19 ms 35236 KB Output is correct
54 Correct 22 ms 35240 KB Output is correct
55 Correct 22 ms 35164 KB Output is correct
56 Incorrect 5 ms 4696 KB Output isn't correct
57 Halted 0 ms 0 KB -

Subtask #5
0 / 29.0

# 결과 실행 시간 메모리 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 6 ms 460 KB Output is correct
7 Correct 16 ms 344 KB Output is correct
8 Correct 128 ms 444 KB Output is correct
9 Correct 130 ms 348 KB Output is correct
10 Correct 127 ms 440 KB Output is correct
11 Correct 128 ms 344 KB Output is correct
12 Correct 128 ms 344 KB Output is correct
13 Correct 128 ms 440 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 1 ms 348 KB Output is correct
17 Correct 63 ms 440 KB Output is correct
18 Correct 126 ms 344 KB Output is correct
19 Correct 129 ms 440 KB Output is correct
20 Correct 127 ms 348 KB Output is correct
21 Correct 128 ms 344 KB Output is correct
22 Correct 130 ms 344 KB Output is correct
23 Correct 128 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 35164 KB Output is correct
27 Correct 7 ms 35164 KB Output is correct
28 Correct 8 ms 35164 KB Output is correct
29 Correct 8 ms 35160 KB Output is correct
30 Correct 8 ms 35148 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 35164 KB Output is correct
34 Correct 9 ms 35164 KB Output is correct
35 Correct 11 ms 35236 KB Output is correct
36 Correct 15 ms 35240 KB Output is correct
37 Correct 21 ms 35164 KB Output is correct
38 Correct 22 ms 35164 KB Output is correct
39 Correct 19 ms 35212 KB Output is correct
40 Correct 19 ms 35164 KB Output is correct
41 Correct 21 ms 35232 KB Output is correct
42 Correct 23 ms 35164 KB Output is correct
43 Incorrect 5 ms 4700 KB Output isn't correct
44 Halted 0 ms 0 KB -