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Submission #938719

# Submission time Handle Problem Language Result Execution time Memory
938719 2024-03-05T13:20:03 Z Alebn Kitchen (BOI19_kitchen) C++14
20 / 100
 72 ms 3420 KB 
#include <bits/stdc++.h>
#define int long long
#define M 301

using namespace std;

int n, m, k, A = 0, B = 0, res = LLONG_MAX;
bool flag = false;
vector<int> a, b;
vector<vector<bool>> dp;

signed main() {
    cin >> n >> m >> k;
    a = vector<int>(n), b = vector<int>(m);
    for(int i = 0; i < n; i++) {
        cin >> a[i];
        A += a[i];
        if(a[i] < k) flag = true;
    }
    for(int i = 0; i < m; i++) {
        cin >> b[i];
        B += b[i];
    }
    if(k == 1) {
        dp = vector<vector<bool>>(m + 1, vector<bool>(B + 1, false));
        dp[0][0] = true;
        for(int i = 1; i <= m; i++) {
            for(int j = 0; j <= B; j++) {
                if(j >= b[i - 1]) dp[i][j] = dp[i - 1][j] | dp[i - 1][j - b[i - 1]];
            }
        }
        //
        for(int i = 0; i <= m; i++) {
            for(int j = A; j <= B; j++) {
                if(dp[i][j]) res = min(res, j - A);
            }
        }
    } else {
        // try every subset
        vector<int> diff;
        bitset<M> bin;
        int temp, sum;
        bool check;
        for(int i = 0; i < (1 << m); i++) {
            bin = bitset<M>(i), diff = vector<int>(n, k), sum = 0, check = true;
            for(int j = 0; j < M; j++) {
                if(bin[j]) {
                    sum += b[j];
                    temp = b[j];
                    for(int k = 0; k < n && temp; k++) {
                        if(diff[k]) {
                            diff[k]--;
                            temp--;
                        }
                    }
                }
            }
            for(int j = 0; j < n; j++) {
                if(diff[j]) {
                    check = false;
                    break;
                }
            }
            if(check && sum >= A) res = min(res, sum - A);
        }
    }
    if(flag || res == LLONG_MAX) cout << "Impossible\n";
    else cout << res << "\n";
}

Subtask #1
0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Incorrect 1 ms 348 KB Output isn't correct
3 Halted 0 ms 0 KB -

Subtask #2
0 / 22.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Incorrect 1 ms 348 KB Output isn't correct
3 Halted 0 ms 0 KB -

Subtask #3
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 52 ms 2392 KB Output is correct
2 Correct 38 ms 1880 KB Output is correct
3 Correct 44 ms 2136 KB Output is correct
4 Correct 72 ms 3420 KB Output is correct
5 Correct 71 ms 3420 KB Output is correct
6 Correct 30 ms 1740 KB Output is correct

Subtask #4
0 / 21.0

# Verdict Execution time Memory Grader output
1 Incorrect 0 ms 348 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #5
0 / 28.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Incorrect 1 ms 348 KB Output isn't correct
3 Halted 0 ms 0 KB -