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ID题目提交者结果用时内存语言文件大小提交时间测评时间
#398165#6130. Plants vs. Zombiesir101AC ✓301ms5732kbC++171.7kb2024-04-25 01:00:212024-04-25 01:00:21

Judging History

你现在查看的是最新测评结果

  • [2024-04-25 01:00:21]
  • 评测
  • 测评结果:AC
  • 用时:301ms
  • 内存:5732kb
  • [2024-04-25 01:00:21]
  • 提交

answer

#include <iostream>
#include<vector>
#define endl '\n'
#define int long long
using namespace std;
void solve() {

    int n, m;
    cin >> n >> m;
    vector<int>a(n + 1);
    for (int i = 1; i <= n; ++i) {
        cin >> a[i];
    }
    if (m < n) {
        cout << "0\n";
        return;
    }
    auto check = [&](int x) {
        auto b = a;
        for (int i = 1; i <= n; ++i) {
            b[i] = (x + a[i] - 1) / a[i];
        }
        b.push_back(0);
        int sum = 0;
        for (int i = 0; i <= n; ++i) {
            if(sum>m)break;
            if (b[i] <= 0) {
                if (i == n)continue;
                b[i + 1]--;
                sum++;
                continue;
            }
            else {
                sum += b[i] * 2;
                b[i + 1] -= b[i];
                if (i < n-1) {
                    b[i + 1]--;
                    sum++;
                }
                else if (i == n - 1) {
                    if (b[i + 1]>0) {
                        sum++;
                        b[i + 1]--;
                    }
                    else {
                        break;
                    }
                }
                else if (i == n) {
                    break;
                }
            }
        }
        return sum <= m;
    };
    int l = 0, r = 1e18;
    int ans;
    while (l <= r) {
        int mid = l + r >> 1;
        if (check(mid)) {
            l = mid + 1;
            ans = mid;
        }
        else r = mid - 1;
    }
    cout << ans << endl;
}
signed main() {
    ios::sync_with_stdio(false), cin.tie(0);
    int t;
    cin >> t;
    while (t--) {
        solve();

    }
    return 0;
}

详细

Test #1:

score: 100
Accepted
time: 1ms
memory: 3552kb

input:

2
4 8
3 2 6 6
3 9
10 10 1

output:

6
4

result:

ok 2 number(s): "6 4"

Test #2:

score: 0
Accepted
time: 110ms
memory: 5620kb

input:

116
4 0
3 2 6 6
4 1
3 2 6 6
10 19
10 2 8 4 2 4 9 3 3 3
4 8
3 9 3 6
2 19
2 10
11 15
3 1 1 4 3 7 10 8 6 7 10
10 14
8 7 1 1 10 9 2 8 10 7
2 13
2 3
10 10
8 1 6 6 9 4 7 1 8 8
7 14
6 7 4 5 3 1 3
11 6
8 1 10 9 7 2 6 6 1 3 9
4 10
6 1 3 8
7 7
10 6 2 10 4 7 2
5 11
9 10 5 9 2
9 1
2 4 8 6 2 8 8 1 6
4 5
7 2 9 8
...

output:

0
0
4
6
20
3
2
14
1
4
0
4
2
6
0
2
24
3
30
10
0
2
3
0
0
2
6
0
1
6
24
28
1
4
3
0
4
10
6
4
1
5
0
2
0
7
30
2
0
0
16
8
0
30
2
30
4
2
0
0
2
0
2
0
5
2
0
0
0
0
5
0
4
6
28
0
0
21
3
0
2
4
0
0
14
4
6
1
0
5
14
3
8
0
4
0
10
12
5
8
1
6
12
0
725
0
17
132
676
588
110
0
163
5910826
1000000000000
16561021906

result:

ok 116 numbers

Test #3:

score: 0
Accepted
time: 301ms
memory: 5732kb

input:

2110
4 0
3 2 6 6
4 1
3 2 6 6
2 7
3 9
28 82
68 27 32 98 88 19 96 37 53 50 45 37 41 92 51 70 73 84 2 53 7 89 9 59 24 23 62 97
22 145
61 22 87 34 75 89 22 6 10 74 21 35 33 23 85 66 89 46 16 48 2 48
25 146
67 63 93 98 1 70 57 45 40 15 1 5 54 38 96 19 94 18 43 98 28 45 47 92 46
21 26
83 54 21 72 25 47 2 ...

output:

0
0
12
35
72
29
6
125
1462
93
160
54
28
27
4
33
625
43
60
1056
0
116
42
31
66
0
0
370
80
198
66
189
39
55
42
36
63
810
325
36
38
20
59
115
0
0
25
4
7
0
72
0
60
1045
39
24
48
35
120
16
86
42
0
28
38
135
67
22
60
104
0
2256
110
0
0
4
25
59
49
0
16
1008
0
26
750
36
33
12
13
48
48
85
18
3135
182
24
160
...

result:

ok 2110 numbers