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
#691296#6130. Plants vs. ZombiesOIer_kzc#WA 88ms6500kbC++17875b2024-10-31 10:49:042024-10-31 10:49:05

Judging History

你现在查看的是最新测评结果

  • [2024-10-31 10:49:05]
  • 评测
  • 测评结果:WA
  • 用时:88ms
  • 内存:6500kb
  • [2024-10-31 10:49:04]
  • 提交

answer

#include <stdio.h>
#include <string.h>

#include <vector>
#include <algorithm>

#define eb emplace_back

#define LOG(FMT...) fprintf(stderr, FMT)

using namespace std;

typedef long long LL;
constexpr int N = 1000005;

int n, a[N];
LL m, D, b[N];

bool chk() {
	for (int i = 1; i <= n; ++i) {
		b[i] = (D - 1) / a[i] + 1;
	}
	LL ret = 0;
	for (int i = 1; i <= n; ++i) {
		if (b[i] <= 0) {
			continue;
		}
		ret += 2 * b[i] - 1;
		if (i < n) {
			b[i + 1] -= b[i] - 1;
		}
	}
	return ret <= m;
}

int main() {
	int task;
	for (scanf("%d", &task); task--; ) {
		scanf("%d%lld", &n, &m);
		for (int i = 1; i <= n; ++i) {
			scanf("%d", a + i);
		}
		LL l = 0, r = m / n * (LL)1e5;
		while (l < r) {
			D = 1 + l + r >> 1;
			if (chk()) {
				l = D;
			} else {
				r = D - 1;
			}
		}
		printf("%lld\n", r);
	}
	return 0;
}

详细

Test #1:

score: 100
Accepted
time: 0ms
memory: 3636kb

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: -100
Wrong Answer
time: 88ms
memory: 6500kb

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
4
24
3
30
12
0
2
4
0
0
2
8
0
2
6
24
28
1
4
3
0
4
10
6
4
2
5
0
2
0
7
30
3
0
0
16
8
0
30
3
30
8
2
0
0
2
0
2
0
5
2
0
0
0
0
5
0
5
6
28
0
0
24
4
0
2
4
0
0
14
4
6
1
0
6
14
3
9
0
4
0
10
12
6
8
2
6
12
0
770
0
19
147
710
665
120
0
174
5910828
1000000000000
16561023154

result:

wrong answer 16th numbers differ - expected: '2', found: '4'