| # |
Submission time |
Handle |
Problem |
Language |
Result |
Execution time |
Memory |
| 357547 |
2021-01-24T05:38:07 Z |
YJU |
Sparklers (JOI17_sparklers) |
C++14 |
|
30 ms |
2944 KB |
#include<bits/stdc++.h>
#pragma GCC optimize("unroll-loops,no-stack-protector")
using namespace std;
typedef long long ll;
typedef long double ld;
typedef pair<ll,ll> pll;
const ll MOD=1e9+7;
const ll MOD2=998244353;
const ll N=1e6+5;
const ld pi=acos(-1);
const ll INF=(1LL<<60);
#define SQ(i) ((i)*(i))
#define REP(i,n) for(ll i=0;i<n;i++)
#define REP1(i,n) for(ll i=1;i<=n;i++)
#define pb push_back
#define mp make_pair
#define X first
#define Y second
#define setp setprecision
#define lwb lower_bound
#define SZ(_a) (ll)_a.size()
ll n,JOI,t,x[N],u[N];
bool ck(ll k){
REP1(i,n)x[i]=u[i]-2*k*t*i;
ll gl=1,gr=n;
for(int i=1;i<=JOI;i++)gl=(x[i]>x[gl]?i:gl);
for(int i=JOI;i<=n;i++)gr=(x[i]<x[gr]?i:gr);
ll ql=JOI,qr=JOI;
ll lv=x[ql],rv=x[qr];
while(ql>=gl||qr<=gr){
ll bl=ql,br=qr;
for(;qr<=gr&&lv>=x[qr];qr++)rv=min(rv,x[qr]);
for(;ql>=gl&&x[ql]>=rv;ql--)lv=max(lv,x[ql]);
if(bl==ql&&br==qr)return 0;
}
ql=1;qr=n;
lv=x[ql];rv=x[qr];
while(ql<=gl||qr>=gr){
ll bl=ql,br=qr;
for(;qr>=gr&&lv>=x[qr];qr--)rv=min(rv,x[qr]);
for(;ql<=gl&&x[ql]>=rv;ql++)lv=max(lv,x[ql]);
if(bl==ql&&br==qr)return 0;
}
return 1;
}
int main(){
ios_base::sync_with_stdio(0);cin.tie(0);
cin>>n>>JOI>>t;
REP1(i,n)cin>>u[i];
ll l=-1,r=1e9+10;
while(r-l>1){
ll mid=(l+r)>>1;
if(ck(mid)){
r=mid;
}else{
l=mid;
}
}
cout<<r<<"\n";
return 0;
}
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
1 ms |
364 KB |
Output is correct |
| 2 |
Correct |
1 ms |
384 KB |
Output is correct |
| 3 |
Correct |
1 ms |
376 KB |
Output is correct |
| 4 |
Correct |
1 ms |
364 KB |
Output is correct |
| 5 |
Correct |
1 ms |
364 KB |
Output is correct |
| 6 |
Correct |
1 ms |
364 KB |
Output is correct |
| 7 |
Correct |
1 ms |
384 KB |
Output is correct |
| 8 |
Correct |
1 ms |
364 KB |
Output is correct |
| 9 |
Correct |
1 ms |
384 KB |
Output is correct |
| 10 |
Correct |
1 ms |
364 KB |
Output is correct |
| 11 |
Correct |
1 ms |
364 KB |
Output is correct |
| 12 |
Correct |
1 ms |
364 KB |
Output is correct |
| 13 |
Correct |
1 ms |
364 KB |
Output is correct |
| 14 |
Correct |
1 ms |
364 KB |
Output is correct |
| 15 |
Correct |
1 ms |
384 KB |
Output is correct |
| 16 |
Correct |
1 ms |
364 KB |
Output is correct |
| 17 |
Correct |
1 ms |
364 KB |
Output is correct |
| 18 |
Correct |
1 ms |
364 KB |
Output is correct |
| 19 |
Correct |
1 ms |
364 KB |
Output is correct |
| 20 |
Correct |
1 ms |
364 KB |
Output is correct |
| 21 |
Correct |
1 ms |
364 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
1 ms |
364 KB |
Output is correct |
| 2 |
Correct |
1 ms |
384 KB |
Output is correct |
| 3 |
Correct |
1 ms |
376 KB |
Output is correct |
| 4 |
Correct |
1 ms |
364 KB |
Output is correct |
| 5 |
Correct |
1 ms |
364 KB |
Output is correct |
| 6 |
Correct |
1 ms |
364 KB |
Output is correct |
| 7 |
Correct |
1 ms |
384 KB |
Output is correct |
| 8 |
Correct |
1 ms |
364 KB |
Output is correct |
| 9 |
Correct |
1 ms |
384 KB |
Output is correct |
| 10 |
Correct |
1 ms |
364 KB |
Output is correct |
| 11 |
Correct |
1 ms |
364 KB |
Output is correct |
| 12 |
Correct |
1 ms |
364 KB |
Output is correct |
| 13 |
Correct |
1 ms |
364 KB |
Output is correct |
| 14 |
Correct |
1 ms |
364 KB |
Output is correct |
| 15 |
Correct |
1 ms |
384 KB |
Output is correct |
| 16 |
Correct |
1 ms |
364 KB |
Output is correct |
| 17 |
Correct |
1 ms |
364 KB |
Output is correct |
| 18 |
Correct |
1 ms |
364 KB |
Output is correct |
| 19 |
Correct |
1 ms |
364 KB |
Output is correct |
| 20 |
Correct |
1 ms |
364 KB |
Output is correct |
| 21 |
Correct |
1 ms |
364 KB |
Output is correct |
| 22 |
Correct |
1 ms |
364 KB |
Output is correct |
| 23 |
Correct |
1 ms |
364 KB |
Output is correct |
| 24 |
Correct |
1 ms |
364 KB |
Output is correct |
| 25 |
Correct |
1 ms |
364 KB |
Output is correct |
| 26 |
Correct |
1 ms |
364 KB |
Output is correct |
| 27 |
Correct |
1 ms |
364 KB |
Output is correct |
| 28 |
Correct |
1 ms |
364 KB |
Output is correct |
| 29 |
Correct |
1 ms |
512 KB |
Output is correct |
| 30 |
Correct |
1 ms |
364 KB |
Output is correct |
| 31 |
Correct |
1 ms |
512 KB |
Output is correct |
| 32 |
Correct |
1 ms |
364 KB |
Output is correct |
| 33 |
Correct |
1 ms |
364 KB |
Output is correct |
| 34 |
Correct |
1 ms |
364 KB |
Output is correct |
| 35 |
Correct |
1 ms |
364 KB |
Output is correct |
| 36 |
Correct |
1 ms |
364 KB |
Output is correct |
| 37 |
Correct |
1 ms |
396 KB |
Output is correct |
| 38 |
Correct |
1 ms |
384 KB |
Output is correct |
| 39 |
Correct |
1 ms |
364 KB |
Output is correct |
| 40 |
Correct |
1 ms |
364 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
1 ms |
364 KB |
Output is correct |
| 2 |
Correct |
1 ms |
384 KB |
Output is correct |
| 3 |
Correct |
1 ms |
376 KB |
Output is correct |
| 4 |
Correct |
1 ms |
364 KB |
Output is correct |
| 5 |
Correct |
1 ms |
364 KB |
Output is correct |
| 6 |
Correct |
1 ms |
364 KB |
Output is correct |
| 7 |
Correct |
1 ms |
384 KB |
Output is correct |
| 8 |
Correct |
1 ms |
364 KB |
Output is correct |
| 9 |
Correct |
1 ms |
384 KB |
Output is correct |
| 10 |
Correct |
1 ms |
364 KB |
Output is correct |
| 11 |
Correct |
1 ms |
364 KB |
Output is correct |
| 12 |
Correct |
1 ms |
364 KB |
Output is correct |
| 13 |
Correct |
1 ms |
364 KB |
Output is correct |
| 14 |
Correct |
1 ms |
364 KB |
Output is correct |
| 15 |
Correct |
1 ms |
384 KB |
Output is correct |
| 16 |
Correct |
1 ms |
364 KB |
Output is correct |
| 17 |
Correct |
1 ms |
364 KB |
Output is correct |
| 18 |
Correct |
1 ms |
364 KB |
Output is correct |
| 19 |
Correct |
1 ms |
364 KB |
Output is correct |
| 20 |
Correct |
1 ms |
364 KB |
Output is correct |
| 21 |
Correct |
1 ms |
364 KB |
Output is correct |
| 22 |
Correct |
1 ms |
364 KB |
Output is correct |
| 23 |
Correct |
1 ms |
364 KB |
Output is correct |
| 24 |
Correct |
1 ms |
364 KB |
Output is correct |
| 25 |
Correct |
1 ms |
364 KB |
Output is correct |
| 26 |
Correct |
1 ms |
364 KB |
Output is correct |
| 27 |
Correct |
1 ms |
364 KB |
Output is correct |
| 28 |
Correct |
1 ms |
364 KB |
Output is correct |
| 29 |
Correct |
1 ms |
512 KB |
Output is correct |
| 30 |
Correct |
1 ms |
364 KB |
Output is correct |
| 31 |
Correct |
1 ms |
512 KB |
Output is correct |
| 32 |
Correct |
1 ms |
364 KB |
Output is correct |
| 33 |
Correct |
1 ms |
364 KB |
Output is correct |
| 34 |
Correct |
1 ms |
364 KB |
Output is correct |
| 35 |
Correct |
1 ms |
364 KB |
Output is correct |
| 36 |
Correct |
1 ms |
364 KB |
Output is correct |
| 37 |
Correct |
1 ms |
396 KB |
Output is correct |
| 38 |
Correct |
1 ms |
384 KB |
Output is correct |
| 39 |
Correct |
1 ms |
364 KB |
Output is correct |
| 40 |
Correct |
1 ms |
364 KB |
Output is correct |
| 41 |
Correct |
21 ms |
2028 KB |
Output is correct |
| 42 |
Correct |
1 ms |
364 KB |
Output is correct |
| 43 |
Correct |
6 ms |
876 KB |
Output is correct |
| 44 |
Correct |
28 ms |
2924 KB |
Output is correct |
| 45 |
Correct |
26 ms |
2924 KB |
Output is correct |
| 46 |
Correct |
27 ms |
2924 KB |
Output is correct |
| 47 |
Correct |
28 ms |
2924 KB |
Output is correct |
| 48 |
Correct |
26 ms |
2924 KB |
Output is correct |
| 49 |
Correct |
29 ms |
2924 KB |
Output is correct |
| 50 |
Correct |
27 ms |
2924 KB |
Output is correct |
| 51 |
Correct |
27 ms |
2924 KB |
Output is correct |
| 52 |
Correct |
30 ms |
2924 KB |
Output is correct |
| 53 |
Correct |
26 ms |
2924 KB |
Output is correct |
| 54 |
Correct |
27 ms |
2924 KB |
Output is correct |
| 55 |
Correct |
26 ms |
2924 KB |
Output is correct |
| 56 |
Correct |
29 ms |
2924 KB |
Output is correct |
| 57 |
Correct |
26 ms |
2924 KB |
Output is correct |
| 58 |
Correct |
27 ms |
2944 KB |
Output is correct |
| 59 |
Correct |
23 ms |
2156 KB |
Output is correct |
| 60 |
Correct |
26 ms |
2924 KB |
Output is correct |
| 61 |
Correct |
25 ms |
2796 KB |
Output is correct |
| 62 |
Correct |
26 ms |
2924 KB |
Output is correct |
| 63 |
Correct |
28 ms |
2924 KB |
Output is correct |
| 64 |
Correct |
26 ms |
2884 KB |
Output is correct |
| 65 |
Correct |
26 ms |
2924 KB |
Output is correct |
| 66 |
Correct |
26 ms |
2924 KB |
Output is correct |
| 67 |
Correct |
26 ms |
2924 KB |
Output is correct |
| 68 |
Correct |
26 ms |
2924 KB |
Output is correct |
| 69 |
Correct |
26 ms |
2924 KB |
Output is correct |
