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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 |
---|---|---|---|---|---|---|---|---|---|
#759340 | #9738. Make It Divisible | tjf4 | WA | 2ms | 6552kb | C++20 | 2.1kb | 2024-11-18 01:17:30 | 2024-11-18 01:17:32 |
Judging History
answer
#include<bits/stdc++.h>
#define IOS ios::sync_with_stdio(false); cin.tie(0); cout.tie(0);
using namespace std;
typedef double db;
typedef long long ll;
typedef unsigned long long ull;
typedef pair<ll,ll> pii;
typedef vector<pii> vii;
typedef vector<ll> vi;
typedef vector<string> vs;
typedef vector<char> vc;
const int inf=0x3f;
const int N=1e5+10;
ll n,k,b[N],l[N],r[N],q[N],lg[N];
int st[N][22];
void init() {
for(int i=1;i<=n;i++) st[i][0]=q[i];
for(int j=1;j<16;j++) {
int x=1<<(j-1);
for(int i=1;i+x<=n;i++) {
st[i][j]=__gcd(st[i][j-1],st[i+x][j-1]);
}
}
}
int qry(int l,int r) {
int s=lg[r-l+1],x=1<<s;
return __gcd(st[l][s],st[r-x+1][s]);
}
bool check(ll mid) {
for(int i=1;i<=n;i++) q[i]=b[i]+mid;
for(int i=2;i<=n;i++) {
if(q[i]%q[i-1]==0) continue;
if(q[i-1]%q[i]==0) continue;
return 0;
}
ll mi=q[1];
for(int i=1;i<=n;i++) {
mi=min(mi,q[i]);
if(q[i]%mi) return 0;
}
reverse(q+1,q+n+1);
mi=q[1];
for(int i=1;i<=n;i++) {
mi=min(mi,q[i]);
if(q[i]%mi) return 0;
}
return 1;
init();
for(int i=1;i<=n;i++) {
int lf=l[i]+1;
int rf=r[i]-1;
if(qry(lf,rf)!=q[i]) return 0;
}
return 1;
}
int main() {
IOS
int T;
cin>>T;
while(T--) {
cin>>n>>k;
for(int i=2;i<=n;i++) lg[i]=lg[i>>1]+1;
for(int i=1;i<=n;i++) cin>>b[i];
for(int i=1;i<=n;i++) {
l[i]=i-1;
while(l[i]>0&&b[l[i]]>=b[i]) l[i]=l[l[i]];
}
for(int i=n;i>=1;i--) {
r[i]=i+1;
while(r[i]<=n&&b[r[i]]>=b[i]) r[i]=r[r[i]];
}
ll pd=-1;
for(int i=2;i<=n;i++) {
if(b[i]!=b[i-1]) {
if(pd<0) pd=i;
else if(b[pd]-b[pd-1]>b[i]-b[i-1]) pd=i;
}
}
if(pd<0) {
ll ans=k;
ll sum=(1+k)*k/2;
cout<<ans<<' '<<sum<<'\n';
continue;
}
ll w=abs(b[pd]-b[pd-1]);
vi g;
for(ll i=1;i*i<=w;i++) {
if(w%i) continue;
g.push_back(i);
if(i*i!=w) g.push_back(w/i);
}
sort(g.begin(),g.end());
ll mi=min(b[pd],b[pd-1]);
ll ans=0,sum=0;
for(auto v:g) {
ll x=v-mi;
if(!(x>=1&&x<=k)) continue;
if(check(x)) {
ans++;
sum+=x;
}
}
cout<<ans<<' '<<sum<<'\n';
}
return 0;
}
詳細信息
Test #1:
score: 100
Accepted
time: 1ms
memory: 5560kb
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: 0
Accepted
time: 1ms
memory: 5508kb
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 0 0 0 0 0 0
result:
ok 4 lines
Test #3:
score: 0
Accepted
time: 1ms
memory: 5504kb
input:
500 4 1000000000 8 14 24 18 4 1000000000 17 10 18 14 4 1000000000 6 17 19 19 4 1000000000 15 14 15 25 4 1000000000 16 16 5 25 4 1000000000 4 30 20 5 4 1000000000 11 4 23 9 4 1000000000 14 25 13 2 4 1000000000 18 18 1 15 4 1000000000 22 22 22 28 4 1000000000 15 17 17 10 4 1000000000 22 14 13 25 4 100...
output:
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 ...
result:
ok 500 lines
Test #4:
score: 0
Accepted
time: 2ms
memory: 6552kb
input:
1 50000 1000000000 230 286458 41263680 41263680 41263680 41263680 41263680 41263680 41263680 41263680 41263680 41263680 41263680 41263680 41263680 41263680 41263680 41263680 41263680 41263680 41263680 41263680 41263680 41263680 41263680 41263680 41263680 41263680 41263680 41263680 41263680 41263680 ...
output:
0 0
result:
ok single line: '0 0'
Test #5:
score: -100
Wrong Answer
time: 2ms
memory: 6548kb
input:
1 50000 1000000000 12087 1196491 55314643 55314643 55314643 55314643 55314643 55314643 55314643 55314643 55314643 55314643 55314643 55314643 55314643 55314643 55314643 55314643 55314643 55314643 55314643 55314643 55314643 55314643 55314643 55314643 55314643 55314643 55314643 55314643 55314643 553146...
output:
1 33467
result:
wrong answer 1st lines differ - expected: '0 0', found: '1 33467'