Submission #4571148
Source Code Expand
#include<bits/stdc++.h> using namespace std; typedef long long ll; ll dat[1000000]; ll u; ll inf=1000000000000000001; ll mod=1000000007; void add(ll n,ll x){ ll i=n+u-1; dat[i]=x; while(i>0){ i=(i-1)/2; dat[i]=min(dat[2*i+1],dat[2*i+2]); } } ll que(ll a,ll b,ll k,ll l,ll r){ if(a>=r||b<=l)return inf; if(a<=l&&b>=r)return dat[k]; ll m1=que(a,b,2*k+1,l,(l+r)/2); ll m2=que(a,b,2*k+2,(l+r)/2,r); return min(m1,m2); } int main(){ fill(dat,dat+1000000,inf); ll n,a,b;cin>>n>>a>>b; vector<ll> s(n); for(ll i=0;i<n;i++)cin>>s[i]; for(ll i=0;;i++){ ll e=pow(2,i); if(e>=n-1){ u=e; break; } } for(ll i=0;i<n-1;i++){ add(i,s[i+1]-s[i]); } ll dp1[n],dp2[n]; fill(dp1,dp1+n,0); fill(dp2,dp2+n,0); dp1[0]=1; dp2[0]=1; for(ll i=1;i<n;i++){ ll t=upper_bound(s.begin(),s.end(),s[i]-a)-s.begin(); if(t==0){ if(i==1){ dp1[i]=1; } else{ ll r=que(0,i-1,0,0,u); if(r>=b)dp1[i]=1; } } else{ if(t==i){ dp1[i]+=dp1[t-1]+dp2[t-1]; dp1[i]%=mod; } else if(t==i-1){ dp1[i]+=dp2[t]; dp1[i]%=mod; //if(s[i-1]-s[i-2]>=b)dp1[i]+=dp2[t-1]; //dp1[i]%=mod; } else{ //ll f=que(t-1,i-1,0,0,u); ll g=que(t,i-1,0,0,u); //if(f>=b)dp1[i]+=dp2[t-1]; //dp1[i]%=mod; if(g>=b)dp1[i]+=dp2[t]; dp1[i]%=mod; } } ll tt=upper_bound(s.begin(),s.end(),s[i]-b)-s.begin(); //if(i==3)cout<<tt<<endl; if(tt==0){ if(i==1){ dp2[i]=1; } else{ ll r=que(0,i-1,0,0,u); if(r>=b)dp2[i]=1; } } else{ if(tt==i){ dp2[i]+=dp1[tt-1]+dp2[tt-1]; dp2[i]%=mod; } else if(tt==i-1){ dp2[i]+=dp1[tt]; dp2[i]%=mod; //if(s[i-1]-s[i-2]>=a)dp2[i]+=dp1[tt-1]; //dp2[i]%=mod; } else{ //ll f=que(tt-1,i-1,0,0,u); ll g=que(tt,i-1,0,0,u); //if(f>=a)dp2[i]+=dp1[tt-1]; //dp2[i]%=mod; if(g>=a)dp2[i]+=dp1[tt]; dp2[i]%=mod; } } } ll ans=dp1[n-1]+dp2[n-1]; cout<<ans%mod<<endl; }
Submission Info
Submission Time | |
---|---|
Task | C - Division into Two |
User | ttttan |
Language | C++14 (GCC 5.4.1) |
Score | 0 |
Code Size | 2295 Byte |
Status | WA |
Exec Time | 105 ms |
Memory | 10368 KB |
Judge Result
Set Name | Sample | All | ||||||
---|---|---|---|---|---|---|---|---|
Score / Max Score | 0 / 0 | 0 / 1100 | ||||||
Status |
|
|
Set Name | Test Cases |
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Sample | s1.txt, s2.txt, s3.txt, s4.txt |
All | 01.txt, 02.txt, 03.txt, 04.txt, 05.txt, 06.txt, 07.txt, 08.txt, 09.txt, 10.txt, 11.txt, 12.txt, 13.txt, 14.txt, 15.txt, 16.txt, 17.txt, 18.txt, 19.txt, 20.txt, 21.txt, 22.txt, 23.txt, 24.txt, 25.txt, 26.txt, 27.txt, 28.txt, 29.txt, 30.txt, 31.txt, 32.txt, 33.txt, 34.txt, 35.txt, 36.txt, 37.txt, 38.txt, 39.txt, 40.txt, 41.txt, 42.txt, 43.txt, 44.txt, 45.txt, 46.txt, 47.txt, 48.txt, 49.txt, 50.txt, 51.txt, 52.txt, 53.txt, 54.txt, 55.txt, 56.txt, 57.txt, 58.txt, 59.txt, 60.txt, 61.txt, 62.txt, 63.txt, 64.txt, s1.txt, s2.txt, s3.txt, s4.txt |
Case Name | Status | Exec Time | Memory |
---|---|---|---|
01.txt | AC | 85 ms | 10368 KB |
02.txt | AC | 81 ms | 10368 KB |
03.txt | AC | 85 ms | 10368 KB |
04.txt | AC | 83 ms | 10368 KB |
05.txt | AC | 80 ms | 10368 KB |
06.txt | AC | 83 ms | 10368 KB |
07.txt | AC | 85 ms | 10368 KB |
08.txt | AC | 83 ms | 10368 KB |
09.txt | AC | 85 ms | 10368 KB |
10.txt | AC | 85 ms | 10368 KB |
11.txt | AC | 84 ms | 10368 KB |
12.txt | AC | 85 ms | 10368 KB |
13.txt | AC | 84 ms | 10368 KB |
14.txt | AC | 83 ms | 10368 KB |
15.txt | AC | 82 ms | 10368 KB |
16.txt | AC | 57 ms | 10368 KB |
17.txt | WA | 67 ms | 10368 KB |
18.txt | AC | 77 ms | 10368 KB |
19.txt | WA | 81 ms | 10368 KB |
20.txt | AC | 67 ms | 10368 KB |
21.txt | AC | 61 ms | 10368 KB |
22.txt | WA | 82 ms | 10368 KB |
23.txt | AC | 68 ms | 10368 KB |
24.txt | WA | 69 ms | 10368 KB |
25.txt | AC | 75 ms | 10368 KB |
26.txt | AC | 72 ms | 10368 KB |
27.txt | AC | 73 ms | 10368 KB |
28.txt | AC | 79 ms | 10368 KB |
29.txt | AC | 77 ms | 10368 KB |
30.txt | AC | 78 ms | 10368 KB |
31.txt | AC | 79 ms | 10368 KB |
32.txt | WA | 84 ms | 10368 KB |
33.txt | WA | 93 ms | 10368 KB |
34.txt | AC | 78 ms | 10368 KB |
35.txt | AC | 98 ms | 10368 KB |
36.txt | AC | 48 ms | 10368 KB |
37.txt | AC | 68 ms | 10368 KB |
38.txt | WA | 71 ms | 10368 KB |
39.txt | AC | 105 ms | 10368 KB |
40.txt | AC | 48 ms | 10368 KB |
41.txt | AC | 69 ms | 10368 KB |
42.txt | AC | 66 ms | 10368 KB |
43.txt | AC | 86 ms | 10368 KB |
44.txt | AC | 86 ms | 10368 KB |
45.txt | AC | 86 ms | 10368 KB |
46.txt | AC | 86 ms | 10368 KB |
47.txt | AC | 86 ms | 10368 KB |
48.txt | AC | 86 ms | 10368 KB |
49.txt | AC | 4 ms | 8064 KB |
50.txt | AC | 5 ms | 8064 KB |
51.txt | AC | 4 ms | 8064 KB |
52.txt | AC | 4 ms | 8064 KB |
53.txt | AC | 4 ms | 8064 KB |
54.txt | AC | 4 ms | 8064 KB |
55.txt | AC | 5 ms | 8064 KB |
56.txt | AC | 5 ms | 8064 KB |
57.txt | AC | 4 ms | 8064 KB |
58.txt | AC | 4 ms | 8064 KB |
59.txt | AC | 4 ms | 8064 KB |
60.txt | AC | 4 ms | 8064 KB |
61.txt | AC | 4 ms | 8064 KB |
62.txt | AC | 4 ms | 8064 KB |
63.txt | AC | 5 ms | 8064 KB |
64.txt | AC | 4 ms | 8064 KB |
s1.txt | AC | 4 ms | 8064 KB |
s2.txt | AC | 4 ms | 8064 KB |
s3.txt | AC | 4 ms | 8064 KB |
s4.txt | AC | 4 ms | 8064 KB |