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IDProblemSubmitterResultTimeMemoryLanguageFile sizeSubmit timeJudge time
#763220#9738. Make It Divisiblezqx#WA 0ms3672kbC++202.2kb2024-11-19 19:01:512024-11-19 19:01:52

Judging History

你现在查看的是最新测评结果

  • [2024-11-27 18:44:44]
  • hack成功,自动添加数据
  • (/hack/1263)
  • [2024-11-19 19:01:52]
  • 评测
  • 测评结果:WA
  • 用时:0ms
  • 内存:3672kb
  • [2024-11-19 19:01:51]
  • 提交

answer

#include<bits/stdc++.h>
#define endl "\n"
using namespace std;
using ll = long long;
const int maxn = 5e4 + 10;
vector<int> vec;
ll n,k,st[maxn][20];
void init(void)
{
    for(int i=0;i<n;i++)
    {
        st[i][0]=i?abs(vec[i]-vec[i-1]):vec[i];
    }
    for(int j=1;j<20;j++)
    {
        for(int i=0;i+(1<<j)-1<n;i++)
        {
            st[i][j]=gcd(st[i][j-1],st[i+(1<<(j-1))][j-1]);
        }
    }
}
ll ask(int l,int r)
{
    if(l>r)
    {
        return 0;
    }
    int s=__lg(r-l+1);
    return gcd(st[l][s],st[r-(1<<s)+1][s]);
}
ll query(int l,int r,ll x)
{
    return abs(gcd(vec[l]+x,ask(l+1,r)));
}
vector<int> get(vector<int> vec,int lim)
{
    int g=0;
    sort(vec.begin(),vec.end());
    for(int i=1;i<(int)vec.size();i++)
    {
        g=gcd(g,abs(vec[i]-vec[i-1]));
    }
    vector<int> wait;
    for(int i=1;i*i<=g;i++)
    {
        if(g%i==0)
        {
            if(i>vec[0]&&i-vec[0]<=lim)
            {
                wait.emplace_back(i-vec[0]);
            }
            if(g/i>max(i,vec[0])&&g/i-vec[0]<=lim)
            {
                wait.emplace_back(g/i-vec[0]);
            }
        }
    }
    return wait;
}
void solve(void)
{
    int mx=-0x3f3f3f3f,mn=0x3f3f3f3f;
    cin>>n>>k;
    vec.clear();
    vec=vector<int>(n);
    for(int i=1;i<=n;i++)
    {
        cin>>vec[i-1];
        mx=max(mx,vec[i-1]);
        mn=min(mn,vec[i-1]);
    }
    if(mn==mx)
    {
        cout<<k<<" "<<k*(k+1)/2<<endl;
        return;
    }
    init();
    vector<int> wait=get(vec,k);
    vector<tuple<ll,int,int>> range;
    ll ans1=0,ans2=0;
    for(const auto& x : wait)
    {
        bool valid=true;
        for(const auto& [l,r,y] : range)
        {
            if(query(l,r,x)!=y+x)
            {
                valid=false;
                break;
            }
        }
        if(valid)
        {
            ans1++;
            ans2+=x;
        }
    }
    cout<<ans1<<" "<<ans2<<endl;
}
int main(void)
{
    ios::sync_with_stdio(false);
    cin.tie(0);
    cout.tie(0);
    int t;
    cin>>t;
    while(t--)
    {
        solve();
    }
    return 0;
}

Details

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Test #1:

score: 100
Accepted
time: 0ms
memory: 3672kb

input:

3
5 10
7 79 1 7 1
2 1000000000
1 2
1 100
1000000000

output:

3 8
0 0
100 5050

result:

ok 3 lines

Test #2:

score: -100
Wrong Answer
time: 0ms
memory: 3596kb

input:

4
201 1000000000
1 5 2 5 2 5 2 5 2 5 2 5 2 5 2 5 2 5 2 5 2 5 2 5 2 5 2 5 2 5 2 5 2 5 2 5 2 5 2 5 2 5 2 5 2 5 2 5 2 5 2 5 2 5 2 5 2 5 2 5 2 5 2 5 2 5 2 5 2 5 2 5 2 5 2 5 2 5 2 5 2 5 2 5 2 5 2 5 2 5 2 5 2 5 2 5 2 5 2 5 2 5 2 5 2 5 2 5 2 5 2 5 2 5 2 5 2 5 2 5 2 5 2 5 2 5 2 5 2 5 2 5 2 5 2 5 2 5 2 5 2 5...

output:

0 0
1 1
0 0
0 0

result:

wrong answer 2nd lines differ - expected: '0 0', found: '1 1'