QOJ.ac
QOJ
| ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
|---|---|---|---|---|---|---|---|---|---|
| #142791 | #6130. Plants vs. Zombies | Nyans | WA | 108ms | 2808kb | C++14 | 624b | 2023-08-19 22:04:02 | 2023-08-19 22:04:03 |
Judging History
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)
ans += b[i] * 2 - (i == n - 1 && b[i + 1] <= b[i]), b[i + 1] -= b[i];
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);
}
}
Details
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Test #1:
score: 100
Accepted
time: 0ms
memory: 1644kb
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: 108ms
memory: 2808kb
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 32 3 30 10 0 2 3 0 0 4 6 0 1 6 24 28 1 4 3 0 4 10 6 4 1 10 0 2 0 7 30 2 0 0 16 8 0 30 2 30 4 2 0 0 4 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 13712180136795612 1000000000000 16561021906
result:
wrong answer 17th numbers differ - expected: '24', found: '32'