QOJ.ac

QOJ

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
#198229#6130. Plants vs. ZombiesHarryJAC ✓229ms5340kbC++23899b2023-10-03 10:28:032023-10-03 10:28:04

Judging History

你现在查看的是最新测评结果

  • [2023-10-03 10:28:04]
  • 评测
  • 测评结果:AC
  • 用时:229ms
  • 内存:5340kb
  • [2023-10-03 10:28:03]
  • 提交

answer

#include<bits/stdc++.h>
using namespace std;
typedef long long ll;
const int maxn=1e5+10;

int n;
ll m;
ll a[maxn],d[maxn];

ll judge(ll k)
{
    memset(d,0,(n+1)*sizeof(ll));
    ll cnt=0;
    for(int i=1;i<=n;i++)
    {
        if(i==n && d[i]>=k) break;
        cnt++, d[i]+=a[i];
        if(d[i]>=k) continue;

        ll tmp=(k-d[i])/a[i]+((k-d[i])%a[i]>0);
        cnt+=2*tmp;
        d[i]+=tmp*a[i];
        d[i+1]+=tmp*a[i+1];
    }
    return cnt;
}

int main()
{
    ios::sync_with_stdio(0);
    cin.tie(0);

    int T;
    cin>>T;
    while(T--)
    {
        cin>>n>>m;
        ll mn=1e5+10;
        for(int i=1;i<=n;i++) cin>>a[i], mn=min(mn,a[i]);

        ll l=0, r=mn*m;
        while(l<r)
        {
            ll mid=(l+r+1)>>1;
            if(judge(mid)<=m) l=mid;
            else r=mid-1;
        }
        cout<<l<<'\n';
    }
}

详细

Test #1:

score: 100
Accepted
time: 0ms
memory: 3624kb

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: 80ms
memory: 5180kb

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: 229ms
memory: 5340kb

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