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Submission #660034

# Submission time Handle Problem Language Result Execution time Memory
660034 2022-11-20T09:09:02 Z Mahdi The short shank; Redemption (BOI21_prison) C++17
80 / 100
 602 ms 37592 KB 
#include<bits/stdc++.h>
#pragma GCC optimize("Ofast")
using namespace std;
#define F first
#define S second
typedef long long ll;
typedef pair<int, int> pii;
const int N=2e6+1e5;
int n, d, t, a[N], mx[N], nx[N], be[N], h[N];

struct seg{
    int sz, sm[2*N];
    
    void ok(){
        sz=1;
        while(sz<n)
            sz<<=1;
    }
    
    void one(int x, int lx, int rx, int l, int r){
        if(lx>=r || rx<=l)
            return;
        if(lx>=l && rx<=r){
            sm[x]=rx-lx;
            return;
        }
        if(sm[x]==rx-lx)
            sm[2*x+1]=sm[2*x+2]=sm[x]/2;
        int m=(lx+rx)/2;
        one(2*x+1, lx, m, l, r);
        one(2*x+2, m, rx, l, r);
        sm[x]=sm[2*x+1]+sm[2*x+2];
    }

    int sum(int x, int lx, int rx, int l, int r){
        if(lx>=r || rx<=l)
            return 0;
        if(lx>=l && rx<=r)
            return sm[x];
        if(sm[x]==rx-lx)
            sm[2*x+1]=sm[2*x+2]=sm[x]/2;
        int m=(lx+rx)/2;
        return sum(2*x+1, lx, m, l, r)+sum(2*x+2, m, rx, l, r);
    }
} A;

int main(){
    ios_base::sync_with_stdio(0); cin.tie(0);
    cin>>n>>d>>t;
    if(n>N/2)
        return 0;
    for(int i=0;i<n;++i)
        cin>>a[i];
    A.ok();
    int ans=0;
    for(int i=0;i<n;++i){
        mx[i]=t-a[i]+i+1;
        if(a[i]<=t){
            A.one(0, 0, A.sz, i, i+1);
            ++ans;
        }
    }
    for(int i=0;i<n-1;++i){
        if(mx[i]>i+1 && mx[i+1]<=i+1)
            h[i]=1;
    }
    iota(nx, nx+n, 1);
    iota(be, be+n, -1);
    set<pii>st;
    for(int i=0;i<n-1;++i){
        st.insert({h[i], i});
    }
    for(int i=n-1;i>d;--i){
        pii z=*st.begin();
        st.erase(st.begin());
        ans+=z.F;
        int r=nx[z.S];
        int l=be[z.S];
        A.one(0, 0, A.sz, z.S+1, min(mx[z.S], r+1));
        be[r]=l;
        if(l>=0)
            nx[l]=r;
        if(r!=n-1){
            mx[r]=max(mx[r], mx[z.S]);
            st.erase({h[r], r});
            h[r]=max(0, min(nx[r], mx[r]-1)-r)-A.sum(0, 0, A.sz, r+1, min(nx[r]+1, mx[r]));
            st.insert({h[r], r});
        }
        if(l!=-1){
            st.erase({h[l], l});
            h[l]=max(0, min(r, mx[l]-1)-l)-A.sum(0, 0, A.sz, l+1, min(r+1, mx[l]));
            st.insert({h[l], l});
        }
    }
    cout<<ans<<'\n';
}

Subtask #1
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 340 KB Output is correct
2 Correct 1 ms 340 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 1 ms 340 KB Output is correct
5 Correct 1 ms 348 KB Output is correct
6 Correct 1 ms 340 KB Output is correct
7 Correct 1 ms 340 KB Output is correct
8 Correct 1 ms 340 KB Output is correct
9 Correct 1 ms 340 KB Output is correct
10 Correct 1 ms 340 KB Output is correct
11 Correct 1 ms 340 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 340 KB Output is correct
2 Correct 576 ms 37592 KB Output is correct
3 Correct 572 ms 37548 KB Output is correct
4 Correct 597 ms 37556 KB Output is correct
5 Correct 535 ms 37552 KB Output is correct
6 Correct 443 ms 36728 KB Output is correct
7 Correct 479 ms 34404 KB Output is correct
8 Correct 513 ms 37380 KB Output is correct

Subtask #3
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 340 KB Output is correct
2 Correct 1 ms 340 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 1 ms 340 KB Output is correct
5 Correct 1 ms 348 KB Output is correct
6 Correct 1 ms 340 KB Output is correct
7 Correct 1 ms 340 KB Output is correct
8 Correct 1 ms 340 KB Output is correct
9 Correct 1 ms 340 KB Output is correct
10 Correct 1 ms 340 KB Output is correct
11 Correct 1 ms 340 KB Output is correct
12 Correct 0 ms 340 KB Output is correct
13 Correct 1 ms 340 KB Output is correct
14 Correct 1 ms 340 KB Output is correct
15 Correct 1 ms 340 KB Output is correct
16 Correct 1 ms 340 KB Output is correct
17 Correct 1 ms 340 KB Output is correct
18 Correct 1 ms 340 KB Output is correct
19 Correct 1 ms 340 KB Output is correct
20 Correct 1 ms 340 KB Output is correct
21 Correct 1 ms 340 KB Output is correct
22 Correct 1 ms 340 KB Output is correct
23 Correct 4 ms 596 KB Output is correct
24 Correct 5 ms 596 KB Output is correct
25 Correct 4 ms 676 KB Output is correct
26 Correct 4 ms 596 KB Output is correct
27 Correct 3 ms 596 KB Output is correct
28 Correct 4 ms 596 KB Output is correct
29 Correct 4 ms 596 KB Output is correct
30 Correct 3 ms 596 KB Output is correct
31 Correct 3 ms 596 KB Output is correct
32 Correct 3 ms 596 KB Output is correct
33 Correct 3 ms 596 KB Output is correct
34 Correct 3 ms 596 KB Output is correct
35 Correct 4 ms 596 KB Output is correct

Subtask #4
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 340 KB Output is correct
2 Correct 76 ms 5900 KB Output is correct
3 Correct 90 ms 5968 KB Output is correct
4 Correct 68 ms 5668 KB Output is correct
5 Correct 59 ms 5580 KB Output is correct
6 Correct 61 ms 5584 KB Output is correct
7 Correct 57 ms 5776 KB Output is correct
8 Correct 56 ms 5772 KB Output is correct
9 Correct 62 ms 5428 KB Output is correct
10 Correct 67 ms 5972 KB Output is correct

Subtask #5
25.0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 340 KB Output is correct
2 Correct 1 ms 340 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 1 ms 340 KB Output is correct
5 Correct 1 ms 348 KB Output is correct
6 Correct 1 ms 340 KB Output is correct
7 Correct 1 ms 340 KB Output is correct
8 Correct 1 ms 340 KB Output is correct
9 Correct 1 ms 340 KB Output is correct
10 Correct 1 ms 340 KB Output is correct
11 Correct 1 ms 340 KB Output is correct
12 Correct 0 ms 340 KB Output is correct
13 Correct 1 ms 340 KB Output is correct
14 Correct 1 ms 340 KB Output is correct
15 Correct 1 ms 340 KB Output is correct
16 Correct 1 ms 340 KB Output is correct
17 Correct 1 ms 340 KB Output is correct
18 Correct 1 ms 340 KB Output is correct
19 Correct 1 ms 340 KB Output is correct
20 Correct 1 ms 340 KB Output is correct
21 Correct 1 ms 340 KB Output is correct
22 Correct 1 ms 340 KB Output is correct
23 Correct 4 ms 596 KB Output is correct
24 Correct 5 ms 596 KB Output is correct
25 Correct 4 ms 676 KB Output is correct
26 Correct 4 ms 596 KB Output is correct
27 Correct 3 ms 596 KB Output is correct
28 Correct 4 ms 596 KB Output is correct
29 Correct 4 ms 596 KB Output is correct
30 Correct 3 ms 596 KB Output is correct
31 Correct 3 ms 596 KB Output is correct
32 Correct 3 ms 596 KB Output is correct
33 Correct 3 ms 596 KB Output is correct
34 Correct 3 ms 596 KB Output is correct
35 Correct 4 ms 596 KB Output is correct
36 Correct 0 ms 340 KB Output is correct
37 Correct 76 ms 5900 KB Output is correct
38 Correct 90 ms 5968 KB Output is correct
39 Correct 68 ms 5668 KB Output is correct
40 Correct 59 ms 5580 KB Output is correct
41 Correct 61 ms 5584 KB Output is correct
42 Correct 57 ms 5776 KB Output is correct
43 Correct 56 ms 5772 KB Output is correct
44 Correct 62 ms 5428 KB Output is correct
45 Correct 67 ms 5972 KB Output is correct
46 Correct 0 ms 340 KB Output is correct
47 Correct 1 ms 340 KB Output is correct
48 Correct 1 ms 340 KB Output is correct
49 Correct 1 ms 340 KB Output is correct
50 Correct 1 ms 340 KB Output is correct
51 Correct 1 ms 340 KB Output is correct
52 Correct 1 ms 340 KB Output is correct
53 Correct 1 ms 340 KB Output is correct
54 Correct 1 ms 340 KB Output is correct
55 Correct 1 ms 340 KB Output is correct
56 Correct 1 ms 340 KB Output is correct
57 Correct 3 ms 596 KB Output is correct
58 Correct 4 ms 596 KB Output is correct
59 Correct 3 ms 596 KB Output is correct
60 Correct 4 ms 596 KB Output is correct
61 Correct 3 ms 596 KB Output is correct
62 Correct 4 ms 672 KB Output is correct
63 Correct 4 ms 596 KB Output is correct
64 Correct 3 ms 596 KB Output is correct
65 Correct 3 ms 596 KB Output is correct
66 Correct 3 ms 596 KB Output is correct
67 Correct 3 ms 596 KB Output is correct
68 Correct 4 ms 596 KB Output is correct
69 Correct 3 ms 596 KB Output is correct
70 Correct 0 ms 340 KB Output is correct
71 Correct 76 ms 5972 KB Output is correct
72 Correct 80 ms 5972 KB Output is correct
73 Correct 69 ms 5704 KB Output is correct
74 Correct 58 ms 5548 KB Output is correct
75 Correct 59 ms 5584 KB Output is correct
76 Correct 56 ms 5780 KB Output is correct
77 Correct 56 ms 5756 KB Output is correct
78 Correct 59 ms 5504 KB Output is correct
79 Correct 69 ms 5972 KB Output is correct
80 Correct 74 ms 5968 KB Output is correct
81 Correct 66 ms 5976 KB Output is correct
82 Correct 67 ms 5940 KB Output is correct
83 Correct 75 ms 5788 KB Output is correct
84 Correct 67 ms 5912 KB Output is correct
85 Correct 58 ms 5588 KB Output is correct
86 Correct 55 ms 5920 KB Output is correct
87 Correct 50 ms 5852 KB Output is correct
88 Correct 61 ms 5548 KB Output is correct
89 Correct 62 ms 5460 KB Output is correct
90 Correct 59 ms 5636 KB Output is correct

Subtask #6
0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 340 KB Output is correct
2 Correct 1 ms 340 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 1 ms 340 KB Output is correct
5 Correct 1 ms 348 KB Output is correct
6 Correct 1 ms 340 KB Output is correct
7 Correct 1 ms 340 KB Output is correct
8 Correct 1 ms 340 KB Output is correct
9 Correct 1 ms 340 KB Output is correct
10 Correct 1 ms 340 KB Output is correct
11 Correct 1 ms 340 KB Output is correct
12 Correct 0 ms 340 KB Output is correct
13 Correct 576 ms 37592 KB Output is correct
14 Correct 572 ms 37548 KB Output is correct
15 Correct 597 ms 37556 KB Output is correct
16 Correct 535 ms 37552 KB Output is correct
17 Correct 443 ms 36728 KB Output is correct
18 Correct 479 ms 34404 KB Output is correct
19 Correct 513 ms 37380 KB Output is correct
20 Correct 0 ms 340 KB Output is correct
21 Correct 1 ms 340 KB Output is correct
22 Correct 1 ms 340 KB Output is correct
23 Correct 1 ms 340 KB Output is correct
24 Correct 1 ms 340 KB Output is correct
25 Correct 1 ms 340 KB Output is correct
26 Correct 1 ms 340 KB Output is correct
27 Correct 1 ms 340 KB Output is correct
28 Correct 1 ms 340 KB Output is correct
29 Correct 1 ms 340 KB Output is correct
30 Correct 1 ms 340 KB Output is correct
31 Correct 4 ms 596 KB Output is correct
32 Correct 5 ms 596 KB Output is correct
33 Correct 4 ms 676 KB Output is correct
34 Correct 4 ms 596 KB Output is correct
35 Correct 3 ms 596 KB Output is correct
36 Correct 4 ms 596 KB Output is correct
37 Correct 4 ms 596 KB Output is correct
38 Correct 3 ms 596 KB Output is correct
39 Correct 3 ms 596 KB Output is correct
40 Correct 3 ms 596 KB Output is correct
41 Correct 3 ms 596 KB Output is correct
42 Correct 3 ms 596 KB Output is correct
43 Correct 4 ms 596 KB Output is correct
44 Correct 0 ms 340 KB Output is correct
45 Correct 76 ms 5900 KB Output is correct
46 Correct 90 ms 5968 KB Output is correct
47 Correct 68 ms 5668 KB Output is correct
48 Correct 59 ms 5580 KB Output is correct
49 Correct 61 ms 5584 KB Output is correct
50 Correct 57 ms 5776 KB Output is correct
51 Correct 56 ms 5772 KB Output is correct
52 Correct 62 ms 5428 KB Output is correct
53 Correct 67 ms 5972 KB Output is correct
54 Correct 0 ms 340 KB Output is correct
55 Correct 1 ms 340 KB Output is correct
56 Correct 1 ms 340 KB Output is correct
57 Correct 1 ms 340 KB Output is correct
58 Correct 1 ms 340 KB Output is correct
59 Correct 1 ms 340 KB Output is correct
60 Correct 1 ms 340 KB Output is correct
61 Correct 1 ms 340 KB Output is correct
62 Correct 1 ms 340 KB Output is correct
63 Correct 1 ms 340 KB Output is correct
64 Correct 1 ms 340 KB Output is correct
65 Correct 3 ms 596 KB Output is correct
66 Correct 4 ms 596 KB Output is correct
67 Correct 3 ms 596 KB Output is correct
68 Correct 4 ms 596 KB Output is correct
69 Correct 3 ms 596 KB Output is correct
70 Correct 4 ms 672 KB Output is correct
71 Correct 4 ms 596 KB Output is correct
72 Correct 3 ms 596 KB Output is correct
73 Correct 3 ms 596 KB Output is correct
74 Correct 3 ms 596 KB Output is correct
75 Correct 3 ms 596 KB Output is correct
76 Correct 4 ms 596 KB Output is correct
77 Correct 3 ms 596 KB Output is correct
78 Correct 0 ms 340 KB Output is correct
79 Correct 76 ms 5972 KB Output is correct
80 Correct 80 ms 5972 KB Output is correct
81 Correct 69 ms 5704 KB Output is correct
82 Correct 58 ms 5548 KB Output is correct
83 Correct 59 ms 5584 KB Output is correct
84 Correct 56 ms 5780 KB Output is correct
85 Correct 56 ms 5756 KB Output is correct
86 Correct 59 ms 5504 KB Output is correct
87 Correct 69 ms 5972 KB Output is correct
88 Correct 74 ms 5968 KB Output is correct
89 Correct 66 ms 5976 KB Output is correct
90 Correct 67 ms 5940 KB Output is correct
91 Correct 75 ms 5788 KB Output is correct
92 Correct 67 ms 5912 KB Output is correct
93 Correct 58 ms 5588 KB Output is correct
94 Correct 55 ms 5920 KB Output is correct
95 Correct 50 ms 5852 KB Output is correct
96 Correct 61 ms 5548 KB Output is correct
97 Correct 62 ms 5460 KB Output is correct
98 Correct 59 ms 5636 KB Output is correct
99 Correct 0 ms 340 KB Output is correct
100 Correct 1 ms 340 KB Output is correct
101 Correct 1 ms 340 KB Output is correct
102 Correct 1 ms 340 KB Output is correct
103 Correct 1 ms 340 KB Output is correct
104 Correct 1 ms 340 KB Output is correct
105 Correct 1 ms 340 KB Output is correct
106 Correct 1 ms 340 KB Output is correct
107 Correct 1 ms 340 KB Output is correct
108 Correct 1 ms 340 KB Output is correct
109 Correct 1 ms 340 KB Output is correct
110 Correct 0 ms 340 KB Output is correct
111 Correct 570 ms 37504 KB Output is correct
112 Correct 582 ms 37544 KB Output is correct
113 Correct 602 ms 37396 KB Output is correct
114 Correct 547 ms 37548 KB Output is correct
115 Correct 446 ms 36656 KB Output is correct
116 Correct 473 ms 34316 KB Output is correct
117 Correct 499 ms 37412 KB Output is correct
118 Correct 4 ms 596 KB Output is correct
119 Correct 5 ms 596 KB Output is correct
120 Correct 4 ms 596 KB Output is correct
121 Correct 4 ms 668 KB Output is correct
122 Correct 4 ms 724 KB Output is correct
123 Correct 4 ms 596 KB Output is correct
124 Correct 4 ms 596 KB Output is correct
125 Correct 3 ms 596 KB Output is correct
126 Correct 3 ms 664 KB Output is correct
127 Correct 3 ms 596 KB Output is correct
128 Correct 3 ms 596 KB Output is correct
129 Correct 4 ms 596 KB Output is correct
130 Correct 3 ms 596 KB Output is correct
131 Correct 0 ms 340 KB Output is correct
132 Correct 84 ms 5972 KB Output is correct
133 Correct 77 ms 5972 KB Output is correct
134 Correct 74 ms 5708 KB Output is correct
135 Correct 58 ms 5588 KB Output is correct
136 Correct 60 ms 5580 KB Output is correct
137 Correct 56 ms 5772 KB Output is correct
138 Correct 56 ms 5708 KB Output is correct
139 Correct 61 ms 5480 KB Output is correct
140 Correct 67 ms 5964 KB Output is correct
141 Correct 74 ms 5968 KB Output is correct
142 Correct 67 ms 5964 KB Output is correct
143 Correct 68 ms 5900 KB Output is correct
144 Correct 70 ms 5732 KB Output is correct
145 Correct 75 ms 5964 KB Output is correct
146 Correct 58 ms 5584 KB Output is correct
147 Correct 52 ms 5912 KB Output is correct
148 Correct 51 ms 5772 KB Output is correct
149 Correct 59 ms 5544 KB Output is correct
150 Correct 61 ms 5508 KB Output is correct
151 Correct 60 ms 5632 KB Output is correct
152 Incorrect 0 ms 212 KB Output isn't correct
153 Halted 0 ms 0 KB -