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답안 #880800

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
880800 2023-11-30T05:14:07 Z bachhoangxuan The short shank; Redemption (BOI21_prison) C++17
100 / 100
 516 ms 339892 KB 
// Judges with GCC >= 12 only needs Ofast
// #pragma GCC optimize("O3,no-stack-protector,fast-math,unroll-loops,tree-vectorize")
// MLE optimization
// #pragma GCC optimize("conserve-stack")
// Old judges
// #pragma GCC target("sse4.2,popcnt,lzcnt,abm,mmx,fma,bmi,bmi2")
// New judges. Test with assert(__builtin_cpu_supports("avx2"));
// #pragma GCC target("avx2,popcnt,lzcnt,abm,bmi,bmi2,fma,tune=native")
// Atcoder
// #pragma GCC target("avx2,popcnt,lzcnt,abm,bmi,bmi2,fma")
/*
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>
using namespace __gnu_pbds;
typedef tree<int,null_type,less<int>,rb_tree_tag,tree_order_statistics_node_update> ordered_set;
- insert(x),erase(x)
- find_by_order(k): return iterator to the k-th smallest element
- order_of_key(x): the number of elements that are strictly smaller
*/
#include<bits/stdc++.h>
using namespace std;
mt19937_64 rng(chrono::steady_clock::now().time_since_epoch().count());
uniform_real_distribution<> pp(0.0,1.0);
#define ld long double
#define pii pair<int,int>
#define piii pair<pii,int>
#define mpp make_pair
#define fi first
#define se second
const int mod=998244353;
const int maxn=2000005;
const int bl=650;
const int maxs=655;
const int maxm=200005;
const int maxq=1000005;
const int maxl=25;
const int maxa=1000000;
const int root=3;
const int base=101;

vector<int> edge[maxn],Max[maxn];
int par[maxn],dep[maxn],ans=0;
pii cur[maxn];

int n,D,T,a[maxn],L[maxn];

void dfs(int u,int p){
    dep[u]=dep[p]+1;
    cur[u]={dep[u],u};
    for(int v:edge[u]){
        dfs(v,u);
        cur[u]=max(cur[u],cur[v]);
    }
    Max[cur[u].fi-dep[u]+1].push_back(u);
}

void update(int u){
    do{
        dep[u]=0;
        if(u!=n+1) ans--;
        u=par[u];
    }while(dep[u]);
}

void solve(){
    cin >> n >> D >> T;
    vector<int> v;
    for(int i=1;i<=n;i++){
        cin >> a[i];
        if(a[i]<=T){
            while(!v.empty() && v.back()+T-a[v.back()]<=i+T-a[i]) v.pop_back();
            v.push_back(i);
        }
        while(!v.empty() && v.back()+T-a[v.back()]<i) v.pop_back();
        if(!v.empty()) L[i]=v.back();
    }
    v.clear();
    v.push_back(n+1);
    for(int i=n;i>=1;i--){
        if(L[i]) ans++;
        if(L[i]==i || !L[i]) continue;
        while(!v.empty() && i<L[v.back()]) v.pop_back();
        edge[v.back()].push_back(i);par[i]=v.back();
        v.push_back(i);
    }
    dfs(n+1,0);
    for(int i=n;i>=1;i--){
        for(int u:Max[i]){
            if(D==0) break;
            if(!dep[u]) continue;
            update(cur[u].se);D--;
        }
    }
    cout << ans << '\n';
}

signed main(){
    //freopen("PLAYDOM.INP","r",stdin);
    //freopen("PLAYDOM.OUT","w",stdout);
    ios_base::sync_with_stdio(false);
    cin.tie(NULL);cout.tie(NULL);
    int test=1;//cin >> test;
    while(test--) solve();
}

Subtask #1
15.0 / 15.0

# 결과 실행 시간 메모리 Grader output
1 Correct 22 ms 104028 KB Output is correct
2 Correct 22 ms 104028 KB Output is correct
3 Correct 25 ms 104276 KB Output is correct
4 Correct 22 ms 104028 KB Output is correct
5 Correct 22 ms 104028 KB Output is correct
6 Correct 22 ms 104028 KB Output is correct
7 Correct 22 ms 104028 KB Output is correct
8 Correct 22 ms 104260 KB Output is correct
9 Correct 22 ms 104028 KB Output is correct
10 Correct 22 ms 104180 KB Output is correct
11 Correct 24 ms 104280 KB Output is correct

Subtask #2
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 21 ms 104028 KB Output is correct
2 Correct 84 ms 127040 KB Output is correct
3 Correct 78 ms 124880 KB Output is correct
4 Correct 77 ms 129300 KB Output is correct
5 Correct 72 ms 128292 KB Output is correct
6 Correct 78 ms 127116 KB Output is correct
7 Correct 121 ms 184892 KB Output is correct
8 Correct 78 ms 130860 KB Output is correct

Subtask #3
20.0 / 20.0

# 결과 실행 시간 메모리 Grader output
1 Correct 22 ms 104028 KB Output is correct
2 Correct 22 ms 104028 KB Output is correct
3 Correct 25 ms 104276 KB Output is correct
4 Correct 22 ms 104028 KB Output is correct
5 Correct 22 ms 104028 KB Output is correct
6 Correct 22 ms 104028 KB Output is correct
7 Correct 22 ms 104028 KB Output is correct
8 Correct 22 ms 104260 KB Output is correct
9 Correct 22 ms 104028 KB Output is correct
10 Correct 22 ms 104180 KB Output is correct
11 Correct 24 ms 104280 KB Output is correct
12 Correct 23 ms 104188 KB Output is correct
13 Correct 24 ms 104240 KB Output is correct
14 Correct 22 ms 104024 KB Output is correct
15 Correct 22 ms 104020 KB Output is correct
16 Correct 22 ms 104028 KB Output is correct
17 Correct 22 ms 104148 KB Output is correct
18 Correct 22 ms 104236 KB Output is correct
19 Correct 23 ms 104028 KB Output is correct
20 Correct 23 ms 104028 KB Output is correct
21 Correct 22 ms 104028 KB Output is correct
22 Correct 22 ms 104128 KB Output is correct
23 Correct 23 ms 104284 KB Output is correct
24 Correct 22 ms 104284 KB Output is correct
25 Correct 23 ms 104284 KB Output is correct
26 Correct 22 ms 104284 KB Output is correct
27 Correct 23 ms 104132 KB Output is correct
28 Correct 22 ms 104536 KB Output is correct
29 Correct 22 ms 104284 KB Output is correct
30 Correct 22 ms 104284 KB Output is correct
31 Correct 23 ms 104284 KB Output is correct
32 Correct 23 ms 104284 KB Output is correct
33 Correct 22 ms 104288 KB Output is correct
34 Correct 23 ms 104284 KB Output is correct
35 Correct 23 ms 104284 KB Output is correct

Subtask #4
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 23 ms 104028 KB Output is correct
2 Correct 32 ms 110340 KB Output is correct
3 Correct 32 ms 110172 KB Output is correct
4 Correct 38 ms 113576 KB Output is correct
5 Correct 35 ms 113616 KB Output is correct
6 Correct 36 ms 113624 KB Output is correct
7 Correct 30 ms 108380 KB Output is correct
8 Correct 30 ms 108116 KB Output is correct
9 Correct 36 ms 118588 KB Output is correct
10 Correct 29 ms 109404 KB Output is correct

Subtask #5
25.0 / 25.0

# 결과 실행 시간 메모리 Grader output
1 Correct 22 ms 104028 KB Output is correct
2 Correct 22 ms 104028 KB Output is correct
3 Correct 25 ms 104276 KB Output is correct
4 Correct 22 ms 104028 KB Output is correct
5 Correct 22 ms 104028 KB Output is correct
6 Correct 22 ms 104028 KB Output is correct
7 Correct 22 ms 104028 KB Output is correct
8 Correct 22 ms 104260 KB Output is correct
9 Correct 22 ms 104028 KB Output is correct
10 Correct 22 ms 104180 KB Output is correct
11 Correct 24 ms 104280 KB Output is correct
12 Correct 23 ms 104188 KB Output is correct
13 Correct 24 ms 104240 KB Output is correct
14 Correct 22 ms 104024 KB Output is correct
15 Correct 22 ms 104020 KB Output is correct
16 Correct 22 ms 104028 KB Output is correct
17 Correct 22 ms 104148 KB Output is correct
18 Correct 22 ms 104236 KB Output is correct
19 Correct 23 ms 104028 KB Output is correct
20 Correct 23 ms 104028 KB Output is correct
21 Correct 22 ms 104028 KB Output is correct
22 Correct 22 ms 104128 KB Output is correct
23 Correct 23 ms 104284 KB Output is correct
24 Correct 22 ms 104284 KB Output is correct
25 Correct 23 ms 104284 KB Output is correct
26 Correct 22 ms 104284 KB Output is correct
27 Correct 23 ms 104132 KB Output is correct
28 Correct 22 ms 104536 KB Output is correct
29 Correct 22 ms 104284 KB Output is correct
30 Correct 22 ms 104284 KB Output is correct
31 Correct 23 ms 104284 KB Output is correct
32 Correct 23 ms 104284 KB Output is correct
33 Correct 22 ms 104288 KB Output is correct
34 Correct 23 ms 104284 KB Output is correct
35 Correct 23 ms 104284 KB Output is correct
36 Correct 23 ms 104028 KB Output is correct
37 Correct 32 ms 110340 KB Output is correct
38 Correct 32 ms 110172 KB Output is correct
39 Correct 38 ms 113576 KB Output is correct
40 Correct 35 ms 113616 KB Output is correct
41 Correct 36 ms 113624 KB Output is correct
42 Correct 30 ms 108380 KB Output is correct
43 Correct 30 ms 108116 KB Output is correct
44 Correct 36 ms 118588 KB Output is correct
45 Correct 29 ms 109404 KB Output is correct
46 Correct 23 ms 104028 KB Output is correct
47 Correct 21 ms 104028 KB Output is correct
48 Correct 23 ms 104028 KB Output is correct
49 Correct 23 ms 104028 KB Output is correct
50 Correct 23 ms 104028 KB Output is correct
51 Correct 22 ms 104028 KB Output is correct
52 Correct 22 ms 104260 KB Output is correct
53 Correct 22 ms 104028 KB Output is correct
54 Correct 22 ms 104028 KB Output is correct
55 Correct 22 ms 104024 KB Output is correct
56 Correct 23 ms 104028 KB Output is correct
57 Correct 24 ms 104300 KB Output is correct
58 Correct 24 ms 104284 KB Output is correct
59 Correct 23 ms 104284 KB Output is correct
60 Correct 22 ms 104284 KB Output is correct
61 Correct 23 ms 104284 KB Output is correct
62 Correct 22 ms 104284 KB Output is correct
63 Correct 22 ms 104152 KB Output is correct
64 Correct 22 ms 104148 KB Output is correct
65 Correct 22 ms 104284 KB Output is correct
66 Correct 24 ms 104180 KB Output is correct
67 Correct 25 ms 104284 KB Output is correct
68 Correct 25 ms 104240 KB Output is correct
69 Correct 22 ms 104284 KB Output is correct
70 Correct 22 ms 104028 KB Output is correct
71 Correct 31 ms 110428 KB Output is correct
72 Correct 32 ms 110092 KB Output is correct
73 Correct 34 ms 113688 KB Output is correct
74 Correct 35 ms 113476 KB Output is correct
75 Correct 34 ms 113616 KB Output is correct
76 Correct 30 ms 108380 KB Output is correct
77 Correct 29 ms 108080 KB Output is correct
78 Correct 38 ms 118476 KB Output is correct
79 Correct 28 ms 109396 KB Output is correct
80 Correct 32 ms 110072 KB Output is correct
81 Correct 33 ms 110420 KB Output is correct
82 Correct 36 ms 110244 KB Output is correct
83 Correct 32 ms 111700 KB Output is correct
84 Correct 33 ms 110020 KB Output is correct
85 Correct 35 ms 113992 KB Output is correct
86 Correct 35 ms 111452 KB Output is correct
87 Correct 31 ms 109764 KB Output is correct
88 Correct 36 ms 116716 KB Output is correct
89 Correct 41 ms 118040 KB Output is correct
90 Correct 40 ms 115152 KB Output is correct

Subtask #6
20.0 / 20.0

# 결과 실행 시간 메모리 Grader output
1 Correct 22 ms 104028 KB Output is correct
2 Correct 22 ms 104028 KB Output is correct
3 Correct 25 ms 104276 KB Output is correct
4 Correct 22 ms 104028 KB Output is correct
5 Correct 22 ms 104028 KB Output is correct
6 Correct 22 ms 104028 KB Output is correct
7 Correct 22 ms 104028 KB Output is correct
8 Correct 22 ms 104260 KB Output is correct
9 Correct 22 ms 104028 KB Output is correct
10 Correct 22 ms 104180 KB Output is correct
11 Correct 24 ms 104280 KB Output is correct
12 Correct 21 ms 104028 KB Output is correct
13 Correct 84 ms 127040 KB Output is correct
14 Correct 78 ms 124880 KB Output is correct
15 Correct 77 ms 129300 KB Output is correct
16 Correct 72 ms 128292 KB Output is correct
17 Correct 78 ms 127116 KB Output is correct
18 Correct 121 ms 184892 KB Output is correct
19 Correct 78 ms 130860 KB Output is correct
20 Correct 23 ms 104188 KB Output is correct
21 Correct 24 ms 104240 KB Output is correct
22 Correct 22 ms 104024 KB Output is correct
23 Correct 22 ms 104020 KB Output is correct
24 Correct 22 ms 104028 KB Output is correct
25 Correct 22 ms 104148 KB Output is correct
26 Correct 22 ms 104236 KB Output is correct
27 Correct 23 ms 104028 KB Output is correct
28 Correct 23 ms 104028 KB Output is correct
29 Correct 22 ms 104028 KB Output is correct
30 Correct 22 ms 104128 KB Output is correct
31 Correct 23 ms 104284 KB Output is correct
32 Correct 22 ms 104284 KB Output is correct
33 Correct 23 ms 104284 KB Output is correct
34 Correct 22 ms 104284 KB Output is correct
35 Correct 23 ms 104132 KB Output is correct
36 Correct 22 ms 104536 KB Output is correct
37 Correct 22 ms 104284 KB Output is correct
38 Correct 22 ms 104284 KB Output is correct
39 Correct 23 ms 104284 KB Output is correct
40 Correct 23 ms 104284 KB Output is correct
41 Correct 22 ms 104288 KB Output is correct
42 Correct 23 ms 104284 KB Output is correct
43 Correct 23 ms 104284 KB Output is correct
44 Correct 23 ms 104028 KB Output is correct
45 Correct 32 ms 110340 KB Output is correct
46 Correct 32 ms 110172 KB Output is correct
47 Correct 38 ms 113576 KB Output is correct
48 Correct 35 ms 113616 KB Output is correct
49 Correct 36 ms 113624 KB Output is correct
50 Correct 30 ms 108380 KB Output is correct
51 Correct 30 ms 108116 KB Output is correct
52 Correct 36 ms 118588 KB Output is correct
53 Correct 29 ms 109404 KB Output is correct
54 Correct 23 ms 104028 KB Output is correct
55 Correct 21 ms 104028 KB Output is correct
56 Correct 23 ms 104028 KB Output is correct
57 Correct 23 ms 104028 KB Output is correct
58 Correct 23 ms 104028 KB Output is correct
59 Correct 22 ms 104028 KB Output is correct
60 Correct 22 ms 104260 KB Output is correct
61 Correct 22 ms 104028 KB Output is correct
62 Correct 22 ms 104028 KB Output is correct
63 Correct 22 ms 104024 KB Output is correct
64 Correct 23 ms 104028 KB Output is correct
65 Correct 24 ms 104300 KB Output is correct
66 Correct 24 ms 104284 KB Output is correct
67 Correct 23 ms 104284 KB Output is correct
68 Correct 22 ms 104284 KB Output is correct
69 Correct 23 ms 104284 KB Output is correct
70 Correct 22 ms 104284 KB Output is correct
71 Correct 22 ms 104152 KB Output is correct
72 Correct 22 ms 104148 KB Output is correct
73 Correct 22 ms 104284 KB Output is correct
74 Correct 24 ms 104180 KB Output is correct
75 Correct 25 ms 104284 KB Output is correct
76 Correct 25 ms 104240 KB Output is correct
77 Correct 22 ms 104284 KB Output is correct
78 Correct 22 ms 104028 KB Output is correct
79 Correct 31 ms 110428 KB Output is correct
80 Correct 32 ms 110092 KB Output is correct
81 Correct 34 ms 113688 KB Output is correct
82 Correct 35 ms 113476 KB Output is correct
83 Correct 34 ms 113616 KB Output is correct
84 Correct 30 ms 108380 KB Output is correct
85 Correct 29 ms 108080 KB Output is correct
86 Correct 38 ms 118476 KB Output is correct
87 Correct 28 ms 109396 KB Output is correct
88 Correct 32 ms 110072 KB Output is correct
89 Correct 33 ms 110420 KB Output is correct
90 Correct 36 ms 110244 KB Output is correct
91 Correct 32 ms 111700 KB Output is correct
92 Correct 33 ms 110020 KB Output is correct
93 Correct 35 ms 113992 KB Output is correct
94 Correct 35 ms 111452 KB Output is correct
95 Correct 31 ms 109764 KB Output is correct
96 Correct 36 ms 116716 KB Output is correct
97 Correct 41 ms 118040 KB Output is correct
98 Correct 40 ms 115152 KB Output is correct
99 Correct 23 ms 104028 KB Output is correct
100 Correct 22 ms 104028 KB Output is correct
101 Correct 27 ms 104028 KB Output is correct
102 Correct 28 ms 104020 KB Output is correct
103 Correct 30 ms 104256 KB Output is correct
104 Correct 28 ms 104384 KB Output is correct
105 Correct 35 ms 104020 KB Output is correct
106 Correct 30 ms 104180 KB Output is correct
107 Correct 25 ms 104028 KB Output is correct
108 Correct 23 ms 104028 KB Output is correct
109 Correct 23 ms 104028 KB Output is correct
110 Correct 23 ms 104028 KB Output is correct
111 Correct 123 ms 127296 KB Output is correct
112 Correct 118 ms 124876 KB Output is correct
113 Correct 109 ms 129324 KB Output is correct
114 Correct 81 ms 128216 KB Output is correct
115 Correct 90 ms 127112 KB Output is correct
116 Correct 140 ms 185012 KB Output is correct
117 Correct 87 ms 130728 KB Output is correct
118 Correct 27 ms 104280 KB Output is correct
119 Correct 26 ms 104300 KB Output is correct
120 Correct 25 ms 104216 KB Output is correct
121 Correct 24 ms 104252 KB Output is correct
122 Correct 24 ms 104348 KB Output is correct
123 Correct 26 ms 104168 KB Output is correct
124 Correct 28 ms 104184 KB Output is correct
125 Correct 24 ms 104256 KB Output is correct
126 Correct 23 ms 104176 KB Output is correct
127 Correct 33 ms 104288 KB Output is correct
128 Correct 27 ms 104288 KB Output is correct
129 Correct 25 ms 104352 KB Output is correct
130 Correct 26 ms 104288 KB Output is correct
131 Correct 27 ms 104040 KB Output is correct
132 Correct 37 ms 110548 KB Output is correct
133 Correct 38 ms 110188 KB Output is correct
134 Correct 36 ms 113656 KB Output is correct
135 Correct 40 ms 113624 KB Output is correct
136 Correct 43 ms 113720 KB Output is correct
137 Correct 38 ms 108476 KB Output is correct
138 Correct 30 ms 107932 KB Output is correct
139 Correct 44 ms 118508 KB Output is correct
140 Correct 32 ms 109404 KB Output is correct
141 Correct 40 ms 110172 KB Output is correct
142 Correct 39 ms 110540 KB Output is correct
143 Correct 37 ms 110000 KB Output is correct
144 Correct 36 ms 111796 KB Output is correct
145 Correct 33 ms 110008 KB Output is correct
146 Correct 41 ms 113988 KB Output is correct
147 Correct 58 ms 111324 KB Output is correct
148 Correct 33 ms 109660 KB Output is correct
149 Correct 40 ms 116656 KB Output is correct
150 Correct 40 ms 118104 KB Output is correct
151 Correct 43 ms 115288 KB Output is correct
152 Correct 289 ms 184152 KB Output is correct
153 Correct 294 ms 188332 KB Output is correct
154 Correct 324 ms 180028 KB Output is correct
155 Correct 341 ms 230492 KB Output is correct
156 Correct 296 ms 186656 KB Output is correct
157 Correct 279 ms 164548 KB Output is correct
158 Correct 275 ms 206116 KB Output is correct
159 Correct 516 ms 339892 KB Output is correct
160 Correct 430 ms 316508 KB Output is correct
161 Correct 209 ms 167084 KB Output is correct
162 Correct 239 ms 166408 KB Output is correct