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QOJ
ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
---|---|---|---|---|---|---|---|---|---|
#274087 | #6130. Plants vs. Zombies | xhgua | WA | 133ms | 5520kb | C++14 | 970b | 2023-12-03 09:04:43 | 2023-12-03 09:04:43 |
Judging History
answer
#include <vector>
#include <iostream>
using i64 = long long;
void solve() {
int n; i64 m;
std::cin >> n >> m;
std::vector<i64> a(n + 1);
for (int i = 1; i <= n; i++) std::cin >> a[i];
auto check = [&](i64 mid) -> bool {
std::vector<i64> b(n + 1, 0), c(n + 1, 0);
for (int i = 1; i <= n; i++) b[i] = (mid == 0 ? 0 : (mid - 1) / a[i] + 1);
i64 sum = 0;
for (int i = 1; i <= n - 1; i++) {
if (c[i] >= b[i]) {
sum += 1;
continue;
}
sum += 2 * (b[i] - c[i]) - 1;
c[i + 1] = b[i] - c[i] - 1;
c[i] = b[i];
}
if (c[n] < b[n]) sum += 2 * (b[n] - c[n]) - 1;
return sum <= m;
};
i64 l = 0, r = (1ll << 60);
while (l < r) {
i64 mid = (l + r + 1) >> 1;
if (check(mid)) l = mid;
else r = mid - 1;
}
std::cout << l << "\n";
}
int main() {
std::ios::sync_with_stdio(false);
std::cin.tie(nullptr);
int T;
std::cin >> T;
while (T--) solve();
return 0;
}
Details
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Test #1:
score: 100
Accepted
time: 1ms
memory: 3480kb
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: 133ms
memory: 5520kb
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 553874133149864145 1000000000000 740028822...
result:
wrong answer 114th numbers differ - expected: '5910826', found: '553874133149864145'