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
#94161	#6130. Plants vs. Zombies	installb^#	AC ✓	492ms	8180kb	C++14	1.1kb	2023-04-05 14:29:57	2023-04-05 14:30:01

Judging History

你现在查看的是最新测评结果

[2023-08-10 23:21:45]
System Update: QOJ starts to keep a history of the judgings of all the submissions.

[2023-04-05 14:30:01]
评测

测评结果：AC
用时：492ms
内存：8180kb

查看

[2023-04-05 14:29:57]
提交

answer

#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
const int N = 1000005;

int n; ll m;
int a[N]; ll b[N];

bool chk(ll x){
    int maxr = 0;
    for(int i = 1;i <= n;i ++){
        b[i] = (x + a[i] - 1) / a[i];
        if(b[i] > m) return 0;
        if(b[i] > 0) maxr = i;
    }
    if(maxr == 0) return 1;
    ll ret = 1; b[1] = max(0ll,b[1] - 1); // go to 1
    for(int i = 1;i <= maxr;i ++){
        // currently at i
        if(b[i] > 0){
            ret += 2ll * b[i];
            b[i + 1] = max(b[i + 1] - b[i],0ll);
            b[i] = 0;
        }
        if(b[i + 1] > 0 || i < maxr - 1){
            b[i + 1] = max(b[i + 1] - 1,0ll); ret ++;
        }
    }
    return ret <= m;
}

void solve(){
    cin >> n >> m;
    for(int i = 1;i <= n;i ++) cin >> a[i];
    ll l = 0,r = 1e18,ans = 0;
    while(l <= r){
        ll mid = (l + r) >> 1;
        if(chk(mid)){
            ans = mid;
            l = mid + 1;
        }
        else r = mid - 1;
    }
    cout << ans << '\n';
}

int main(){
    ios::sync_with_stdio(false);
    int TC;
    cin >> TC;
    while(TC --){
        solve();
    }
    return 0;
}

源文件, 语言: C++14

详细

Test #1:

score: 100

Accepted

time: 0ms

memory: 5528kb

input:

output:

6
4

result:

ok 2 number(s): "6 4"

Test #2:

score: 0

Accepted

time: 183ms

memory: 8016kb

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: 492ms

memory: 8180kb

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:

result:

ok 2110 numbers