Submission #813936
Source Code Expand
#include <bits/stdc++.h> #define _overload(_1,_2,_3,name,...) name #define _rep(i,n) _range(i,0,n) #define _range(i,a,b) for(int i=int(a);i<int(b);++i) #define rep(...) _overload(__VA_ARGS__,_range,_rep,)(__VA_ARGS__) #define _rrep(i,n) _rrange(i,n,0) #define _rrange(i,a,b) for(int i=int(a)-1;i>=int(b);--i) #define rrep(...) _overload(__VA_ARGS__,_rrange,_rrep,)(__VA_ARGS__) #define _all(arg) begin(arg),end(arg) #define uniq(arg) sort(_all(arg)),(arg).erase(unique(_all(arg)),end(arg)) #define getidx(ary,key) lower_bound(_all(ary),key)-begin(ary) #define clr(a,b) memset((a),(b),sizeof(a)) #define bit(n) (1LL<<(n)) #define popcount(n) (__builtin_popcountll(n)) template<class T>bool chmax(T &a, const T &b) { return (a<b)?(a=b,1):0;} template<class T>bool chmin(T &a, const T &b) { return (b<a)?(a=b,1):0;} using namespace std; const int dx[8]={1,0,-1,0,1,-1,-1,1}; const int dy[8]={0,1,0,-1,1,1,-1,-1}; int n,m; using state=pair<int,int>; vector<state> ary; const int nmax=200010; int s[nmax],t[nmax]; int nxt[nmax][20]; int main(void){ cin >> n >> m; rep(i,n){ cin >> s[i] >> t[i]; if(s[i]>t[i]) t[i]+=m; s[n+i]=s[i]+m; t[n+i]=t[i]+m; } const int all=2*n; rep(i,all){ ary.push_back(state(t[i],i)); ary.push_back(state(s[i],all+i)); } sort(_all(ary)); int last=all; rrep(i,2*all){ int id=ary[i].second; if(id<all){ nxt[id][0]=last; }else{ id-=all; if(last==all || t[last]>t[id]) last=id; } } rep(k,19)rep(i,all){ if(nxt[i][k]==all) nxt[i][k+1]=all; else nxt[i][k+1]=nxt[nxt[i][k]][k]; } int ans=0; rep(i,n){ int cur=i,num=0; rrep(k,20){ int tar=nxt[cur][k]; if(tar!=all && t[tar]<=s[i]+m){ cur=tar; num|=1<<k; } } chmax(ans,num+1); } cout << ans << endl; return 0; }
Submission Info
Submission Time | |
---|---|
Task | A - Anime Master |
User | Hec |
Language | C++11 (GCC 4.8.1) |
Score | 100 |
Code Size | 1861 Byte |
Status | AC |
Exec Time | 334 ms |
Memory | 21304 KB |
Judge Result
Set Name | All | ||
---|---|---|---|
Score / Max Score | 100 / 100 | ||
Status |
|
Set Name | Test Cases |
---|---|
All | 1, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 2, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 3, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 4, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 5, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 6, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 7, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 8, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 9 |
Case Name | Status | Exec Time | Memory |
---|---|---|---|
1 | AC | 37 ms | 816 KB |
10 | AC | 24 ms | 928 KB |
11 | AC | 26 ms | 932 KB |
12 | AC | 26 ms | 928 KB |
13 | AC | 26 ms | 876 KB |
14 | AC | 24 ms | 880 KB |
15 | AC | 26 ms | 876 KB |
16 | AC | 27 ms | 872 KB |
17 | AC | 26 ms | 872 KB |
18 | AC | 26 ms | 924 KB |
19 | AC | 24 ms | 928 KB |
2 | AC | 26 ms | 924 KB |
20 | AC | 26 ms | 932 KB |
21 | AC | 24 ms | 924 KB |
22 | AC | 24 ms | 924 KB |
23 | AC | 24 ms | 876 KB |
24 | AC | 27 ms | 880 KB |
25 | AC | 26 ms | 808 KB |
26 | AC | 27 ms | 872 KB |
27 | AC | 25 ms | 924 KB |
28 | AC | 25 ms | 928 KB |
29 | AC | 25 ms | 884 KB |
3 | AC | 26 ms | 924 KB |
30 | AC | 26 ms | 872 KB |
31 | AC | 26 ms | 928 KB |
32 | AC | 27 ms | 884 KB |
33 | AC | 27 ms | 884 KB |
34 | AC | 28 ms | 924 KB |
35 | AC | 26 ms | 876 KB |
36 | AC | 26 ms | 876 KB |
37 | AC | 26 ms | 924 KB |
38 | AC | 26 ms | 924 KB |
39 | AC | 26 ms | 928 KB |
4 | AC | 26 ms | 920 KB |
40 | AC | 26 ms | 928 KB |
41 | AC | 30 ms | 924 KB |
42 | AC | 28 ms | 924 KB |
43 | AC | 27 ms | 884 KB |
44 | AC | 26 ms | 876 KB |
45 | AC | 25 ms | 808 KB |
46 | AC | 26 ms | 876 KB |
47 | AC | 26 ms | 928 KB |
48 | AC | 26 ms | 876 KB |
49 | AC | 26 ms | 928 KB |
5 | AC | 26 ms | 932 KB |
50 | AC | 24 ms | 928 KB |
51 | AC | 26 ms | 928 KB |
52 | AC | 26 ms | 932 KB |
53 | AC | 26 ms | 924 KB |
54 | AC | 26 ms | 868 KB |
55 | AC | 26 ms | 968 KB |
56 | AC | 26 ms | 928 KB |
57 | AC | 26 ms | 928 KB |
58 | AC | 252 ms | 21216 KB |
59 | AC | 235 ms | 21208 KB |
6 | AC | 27 ms | 924 KB |
60 | AC | 268 ms | 21304 KB |
61 | AC | 287 ms | 21216 KB |
62 | AC | 291 ms | 21212 KB |
63 | AC | 302 ms | 21212 KB |
64 | AC | 334 ms | 21208 KB |
65 | AC | 101 ms | 6620 KB |
66 | AC | 166 ms | 11608 KB |
67 | AC | 106 ms | 7004 KB |
68 | AC | 36 ms | 2028 KB |
69 | AC | 28 ms | 1000 KB |
7 | AC | 26 ms | 876 KB |
70 | AC | 33 ms | 1644 KB |
71 | AC | 27 ms | 880 KB |
72 | AC | 27 ms | 984 KB |
73 | AC | 27 ms | 1096 KB |
74 | AC | 30 ms | 1380 KB |
75 | AC | 35 ms | 1896 KB |
76 | AC | 43 ms | 2516 KB |
77 | AC | 36 ms | 1856 KB |
78 | AC | 43 ms | 2404 KB |
79 | AC | 32 ms | 1380 KB |
8 | AC | 28 ms | 872 KB |
80 | AC | 29 ms | 1188 KB |
81 | AC | 41 ms | 2148 KB |
82 | AC | 39 ms | 2032 KB |
83 | AC | 34 ms | 1744 KB |
84 | AC | 49 ms | 2912 KB |
85 | AC | 48 ms | 2784 KB |
86 | AC | 35 ms | 1776 KB |
87 | AC | 39 ms | 2024 KB |
88 | AC | 37 ms | 2028 KB |
89 | AC | 50 ms | 3048 KB |
9 | AC | 26 ms | 924 KB |