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QOJ
ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
---|---|---|---|---|---|---|---|---|---|
#247620 | #6130. Plants vs. Zombies | OMoonStars# | WA | 105ms | 4784kb | C++14 | 1.6kb | 2023-11-11 15:11:03 | 2023-11-11 15:11:04 |
Judging History
answer
#include<algorithm>
#include<array>
#include<bitset>
#include<cmath>
#include<cstdio>
#include<cstring>
#include<iomanip>
#include<iostream>
#include<map>
#include<numeric>
#include<queue>
#include<set>
#include<unordered_map>
#define fi first
#define se second
#define pb push_back
#define mp make_pair
#define endl '\n'
using namespace std;
using ll=long long;
using db=double;
using pii=pair<int,int>;
const int inf=0x3f3f3f3f;
const int mod=998244353;
const int N=1e5+10,M=1e3+10;
int n;
ll m;
int a[N];
ll cnt[N];
bool check(ll x)
{
for(int i=1;i<=n;i++)
cnt[i]=(x+a[i]-1)/a[i];
cnt[n + 1] = 0;
ll sum=0;
for(int i=1;i<n;i++)
if(cnt[i]>0)
{
sum+=cnt[i]*2;
cnt[i+1]-=cnt[i];
}
if(cnt[n]<=0)sum--;
else sum+=cnt[n]*2-1;
// for(int i = 1; i < n; ++i)
// {
// if(cnt[i] >= cnt[i + 1])
// {
// sum += cnt[i] * 2;
// cnt[i + 1] -=
// i++;
// }
// else
// {
// sum += cnt[i] * 2 - 1;
// cnt[i + 1] -= cnt[i] - 1;
// }
// }
return sum<=m;
}
void solve()
{
cin >> n >> m;
for(int i=1;i<=n;i++)
cin >> a[i];
ll l=0,r=1e18;
while(l<r)
{
ll mid=l+r+1>>1;
if(check(mid))l=mid;
else r=mid-1;
}
cout << r << endl;
}
int main()
{
ios::sync_with_stdio(false);
cin.tie(nullptr);
int t;
cin >> t;
while(t--)
solve();
return 0;
}
Details
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Test #1:
score: 100
Accepted
time: 0ms
memory: 3616kb
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: 105ms
memory: 4784kb
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 32 3 30 12 0 2 3 0 0 4 6 0 2 6 27 28 1 4 3 0 4 10 6 4 2 10 0 2 0 7 30 2 0 0 16 8 0 30 3 30 4 2 0 0 2 0 3 0 6 2 0 0 0 0 5 0 5 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 6 8 1 6 12 0 741 0 17 138 687 612 113 0 169 581298493411633717 1000000000000 74002882...
result:
wrong answer 16th numbers differ - expected: '2', found: '4'