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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
#142800	#6130. Plants vs. Zombies	Nyans	AC ✓	219ms	2776kb	C++14	651b	2023-08-19 22:19:35	2023-08-19 22:19:37

Judging History

你现在查看的是最新测评结果

[2023-08-19 22:19:37]
评测

测评结果：AC
用时：219ms
内存：2776kb

查看

[2023-08-19 22:19:35]
提交

answer

#include <cstdio>
int T, n, a[100010];
long long m, b[100010];
long long check(long long up) {
	for (int i = 1; i <= n; ++i) b[i] = (up + a[i] - 1) / a[i] - 1;
	long long ans = n;
	for (int i = 1; i <= n; ++i) if (b[i] > 0) {
		b[i + 1] -= b[i];
		ans += b[i] * 2 - (i == n - 1 && b[i + 1] < 0);
		if (ans > m) break;
	}
	return ans;
}
int main() {
	for (scanf("%d", &T); T--; ) {
		scanf("%d%lld", &n, &m);
		long long L = 1, R = m * 1e5, mid;
		for (int i = 1; i <= n; ++i) scanf("%d", a + i);
		while (L <= R) {
			mid = (L + R) / 2;
			if (check(mid) <= m) L = mid + 1;
			else R = mid - 1;
		}
		printf("%lld\n", R);
	}
}

源文件, 语言: C++14

詳細信息

Test #1:

score: 100

Accepted

time: 0ms

memory: 1596kb

input:

output:

6
4

result:

ok 2 number(s): "6 4"

Test #2:

score: 0

Accepted

time: 77ms

memory: 2724kb

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: 219ms

memory: 2776kb

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