oj.uz

Submission #900302

# Submission time Handle Problem Language Result Execution time Memory
900302 2024-01-08T05:03:17 Z NeroZein The short shank; Redemption (BOI21_prison) C++17
100 / 100
 1831 ms 97300 KB 
#pragma GCC optimize("Ofast,fast-math,unroll-loops")
#pragma GCC target("avx2,fma")
#include "bits/stdc++.h"
using namespace std;

#ifdef Nero
#include "Deb.h"
#else
#define deb(...)
#endif

const int N = 2e6 + 6;

int a[N];
int ct[N];
int low[N];
int lz[N * 2];
int slow[N * 2];
pair<int, int> seg[N * 2];

inline int merge(int lx, int rx) {
  return low[lx] < low[rx] ? lx : rx;
}

void lowupd(int nd, int l, int r, int p, int v) {
  if (l == r) {
    slow[nd] = l;
    return;
  }
  int mid = (l + r) >> 1;
  int rs = nd + ((mid - l + 1) << 1);
  if (p <= mid) {
    lowupd(nd + 1, l, mid, p, v); 
  } else {
    lowupd(rs, mid + 1, r, p, v); 
  }
  slow[nd] = merge(slow[nd + 1], slow[rs]); 
}

int lowget(int nd, int l, int r, int s, int e) {
  if (l >= s && r <= e) {
    return slow[nd];
  }
  int mid = (l + r) >> 1;
  int rs = nd + ((mid - l + 1) << 1);
  if (mid >= e) {
    return lowget(nd + 1, l, mid, s, e);
  } else {
    if (mid < s) {
      return lowget(rs, mid + 1, r, s, e); 
    } else {
      return merge(lowget(nd + 1, l, mid, s, e), lowget(rs, mid + 1, r, s, e)); 
    }
  }
}

inline void push(int nd, int l, int r) {
  if (!lz[nd]) return;
  seg[nd].first += lz[nd];
  if (l != r) {
    int mid = (l + r) >> 1;
    int rs = nd + ((mid - l + 1) << 1);
    lz[nd + 1] += lz[nd];
    lz[rs] += lz[nd]; 
  }
  lz[nd] = 0;
}

void build(int nd, int l, int r) {
  seg[nd] = {0, l};
  if (l == r) {
    return;
  }
  int mid = (l + r) >> 1;
  int rs = nd + ((mid - l + 1) << 1);
  build(nd + 1, l, mid);
  build(rs, mid + 1, r); 
}

void upd(int nd, int l, int r, int s, int e, int v) {
  push(nd, l, r); 
  if (l >= s && r <= e) {
    lz[nd] = v;
    push(nd, l, r);
    return; 
  }
  int mid = (l + r) >> 1;
  int rs = nd + ((mid - l + 1) << 1);
  if (mid >= e) {
    push(rs, mid + 1, r); 
    upd(nd + 1, l, mid, s, e, v); 
  } else {
    if (mid < s) {
      push(nd + 1, l, mid); 
      upd(rs, mid + 1, r, s, e, v); 
    } else {
      upd(nd + 1, l, mid, s, e, v); 
      upd(rs, mid + 1, r, s, e, v); 
    }
  }
  seg[nd] = max(seg[nd + 1], seg[rs]); 
}

pair<int, int> get(int nd, int l, int r, int s, int e) {
  push(nd, l, r); 
  if (l >= s && r <= e) {
    return seg[nd];
  }
  int mid = (l + r) >> 1;
  int rs = nd + ((mid - l + 1) << 1);
  if (mid >= e) {
    return get(nd + 1, l, mid, s, e);
  } else {
    if (mid < s) {
      return get(rs, mid + 1, r, s, e); 
    } else {
      return max(get(nd + 1, l, mid, s, e), get(rs, mid + 1, r, s, e)); 
    }
  }
}

int main() {
  ios::sync_with_stdio(false);
  cin.tie(nullptr);
  int n, d, t;
  cin >> n >> d >> t;
  for (int i = 1; i <= n; ++i) {
    cin >> a[i];
  }
  build(0, 1, n);
  stack<int> stk;
  low[0] = n + 1; 
  for (int i = 1; i <= n; ++i) {
    stk.push(i);
    while (!stk.empty() && a[stk.top()] + i - stk.top() > t) {
      stk.pop();
    }
    if (!stk.empty()) {
      low[i] = stk.top(); 
      if (low[i] < i) {
        upd(0, 1, n, low[i] + 1, i, 1);        
      }
    } else {
      low[i] = n + 1; 
    }
    lowupd(0, 1, n, i, low[i]);
  }
  for (int iter = 1; iter <= d; ++iter) {
    int mx = get(0, 1, n, 1, n).second;
    while (true) {
      int ind = lowget(0, 1, n, mx, n);
      if (low[ind] >= mx) {
        break;
      }
      upd(0, 1, n, low[ind] + 1, ind, -1);
      low[ind] = n + 1; 
      lowupd(0, 1, n, ind, n + 1); 
    }
  }
  int ans = 0;
  for (int i = 1; i <= n; ++i) {
    if (low[i] <= n) {
      ans++;
    }
  }
  cout << ans << '\n';
  return 0;
}

Subtask #1
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 6492 KB Output is correct
2 Correct 1 ms 6492 KB Output is correct
3 Correct 1 ms 6488 KB Output is correct
4 Correct 1 ms 6488 KB Output is correct
5 Correct 1 ms 6488 KB Output is correct
6 Correct 1 ms 6608 KB Output is correct
7 Correct 2 ms 6492 KB Output is correct
8 Correct 1 ms 6492 KB Output is correct
9 Correct 1 ms 6488 KB Output is correct
10 Correct 1 ms 6488 KB Output is correct
11 Correct 1 ms 6492 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 6492 KB Output is correct
2 Correct 146 ms 26212 KB Output is correct
3 Correct 134 ms 26572 KB Output is correct
4 Correct 158 ms 25908 KB Output is correct
5 Correct 154 ms 25168 KB Output is correct
6 Correct 158 ms 24144 KB Output is correct
7 Correct 479 ms 25168 KB Output is correct
8 Correct 172 ms 25040 KB Output is correct

Subtask #3
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 6492 KB Output is correct
2 Correct 1 ms 6492 KB Output is correct
3 Correct 1 ms 6488 KB Output is correct
4 Correct 1 ms 6488 KB Output is correct
5 Correct 1 ms 6488 KB Output is correct
6 Correct 1 ms 6608 KB Output is correct
7 Correct 2 ms 6492 KB Output is correct
8 Correct 1 ms 6492 KB Output is correct
9 Correct 1 ms 6488 KB Output is correct
10 Correct 1 ms 6488 KB Output is correct
11 Correct 1 ms 6492 KB Output is correct
12 Correct 1 ms 6492 KB Output is correct
13 Correct 1 ms 6492 KB Output is correct
14 Correct 1 ms 6492 KB Output is correct
15 Correct 1 ms 6492 KB Output is correct
16 Correct 1 ms 6520 KB Output is correct
17 Correct 1 ms 6492 KB Output is correct
18 Correct 1 ms 6492 KB Output is correct
19 Correct 1 ms 6492 KB Output is correct
20 Correct 1 ms 6492 KB Output is correct
21 Correct 1 ms 6492 KB Output is correct
22 Correct 1 ms 6492 KB Output is correct
23 Correct 2 ms 6492 KB Output is correct
24 Correct 2 ms 6492 KB Output is correct
25 Correct 2 ms 6492 KB Output is correct
26 Correct 2 ms 6492 KB Output is correct
27 Correct 2 ms 6492 KB Output is correct
28 Correct 2 ms 6492 KB Output is correct
29 Correct 3 ms 6492 KB Output is correct
30 Correct 2 ms 6492 KB Output is correct
31 Correct 2 ms 6492 KB Output is correct
32 Correct 2 ms 6492 KB Output is correct
33 Correct 2 ms 6492 KB Output is correct
34 Correct 2 ms 6492 KB Output is correct
35 Correct 2 ms 6492 KB Output is correct

Subtask #4
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 6492 KB Output is correct
2 Correct 22 ms 9420 KB Output is correct
3 Correct 20 ms 9556 KB Output is correct
4 Correct 41 ms 9324 KB Output is correct
5 Correct 47 ms 9308 KB Output is correct
6 Correct 48 ms 9296 KB Output is correct
7 Correct 22 ms 9052 KB Output is correct
8 Correct 22 ms 9048 KB Output is correct
9 Correct 68 ms 9556 KB Output is correct
10 Correct 19 ms 9304 KB Output is correct

Subtask #5
25.0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 6492 KB Output is correct
2 Correct 1 ms 6492 KB Output is correct
3 Correct 1 ms 6488 KB Output is correct
4 Correct 1 ms 6488 KB Output is correct
5 Correct 1 ms 6488 KB Output is correct
6 Correct 1 ms 6608 KB Output is correct
7 Correct 2 ms 6492 KB Output is correct
8 Correct 1 ms 6492 KB Output is correct
9 Correct 1 ms 6488 KB Output is correct
10 Correct 1 ms 6488 KB Output is correct
11 Correct 1 ms 6492 KB Output is correct
12 Correct 1 ms 6492 KB Output is correct
13 Correct 1 ms 6492 KB Output is correct
14 Correct 1 ms 6492 KB Output is correct
15 Correct 1 ms 6492 KB Output is correct
16 Correct 1 ms 6520 KB Output is correct
17 Correct 1 ms 6492 KB Output is correct
18 Correct 1 ms 6492 KB Output is correct
19 Correct 1 ms 6492 KB Output is correct
20 Correct 1 ms 6492 KB Output is correct
21 Correct 1 ms 6492 KB Output is correct
22 Correct 1 ms 6492 KB Output is correct
23 Correct 2 ms 6492 KB Output is correct
24 Correct 2 ms 6492 KB Output is correct
25 Correct 2 ms 6492 KB Output is correct
26 Correct 2 ms 6492 KB Output is correct
27 Correct 2 ms 6492 KB Output is correct
28 Correct 2 ms 6492 KB Output is correct
29 Correct 3 ms 6492 KB Output is correct
30 Correct 2 ms 6492 KB Output is correct
31 Correct 2 ms 6492 KB Output is correct
32 Correct 2 ms 6492 KB Output is correct
33 Correct 2 ms 6492 KB Output is correct
34 Correct 2 ms 6492 KB Output is correct
35 Correct 2 ms 6492 KB Output is correct
36 Correct 1 ms 6492 KB Output is correct
37 Correct 22 ms 9420 KB Output is correct
38 Correct 20 ms 9556 KB Output is correct
39 Correct 41 ms 9324 KB Output is correct
40 Correct 47 ms 9308 KB Output is correct
41 Correct 48 ms 9296 KB Output is correct
42 Correct 22 ms 9052 KB Output is correct
43 Correct 22 ms 9048 KB Output is correct
44 Correct 68 ms 9556 KB Output is correct
45 Correct 19 ms 9304 KB Output is correct
46 Correct 1 ms 6492 KB Output is correct
47 Correct 1 ms 6492 KB Output is correct
48 Correct 1 ms 6492 KB Output is correct
49 Correct 1 ms 6492 KB Output is correct
50 Correct 1 ms 6492 KB Output is correct
51 Correct 1 ms 6492 KB Output is correct
52 Correct 1 ms 6492 KB Output is correct
53 Correct 1 ms 6492 KB Output is correct
54 Correct 1 ms 6492 KB Output is correct
55 Correct 1 ms 6488 KB Output is correct
56 Correct 1 ms 6488 KB Output is correct
57 Correct 2 ms 6492 KB Output is correct
58 Correct 2 ms 6492 KB Output is correct
59 Correct 2 ms 6680 KB Output is correct
60 Correct 2 ms 6488 KB Output is correct
61 Correct 2 ms 6488 KB Output is correct
62 Correct 2 ms 6492 KB Output is correct
63 Correct 2 ms 6492 KB Output is correct
64 Correct 2 ms 6492 KB Output is correct
65 Correct 2 ms 6492 KB Output is correct
66 Correct 2 ms 6492 KB Output is correct
67 Correct 2 ms 6688 KB Output is correct
68 Correct 2 ms 6488 KB Output is correct
69 Correct 3 ms 6644 KB Output is correct
70 Correct 1 ms 6492 KB Output is correct
71 Correct 22 ms 9408 KB Output is correct
72 Correct 21 ms 9556 KB Output is correct
73 Correct 40 ms 9308 KB Output is correct
74 Correct 47 ms 9488 KB Output is correct
75 Correct 47 ms 9308 KB Output is correct
76 Correct 22 ms 9180 KB Output is correct
77 Correct 22 ms 9132 KB Output is correct
78 Correct 62 ms 9308 KB Output is correct
79 Correct 19 ms 9308 KB Output is correct
80 Correct 29 ms 9560 KB Output is correct
81 Correct 35 ms 9308 KB Output is correct
82 Correct 31 ms 9552 KB Output is correct
83 Correct 39 ms 9444 KB Output is correct
84 Correct 34 ms 9464 KB Output is correct
85 Correct 51 ms 9476 KB Output is correct
86 Correct 42 ms 9304 KB Output is correct
87 Correct 30 ms 9304 KB Output is correct
88 Correct 54 ms 9324 KB Output is correct
89 Correct 70 ms 9608 KB Output is correct
90 Correct 55 ms 9304 KB Output is correct

Subtask #6
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 6492 KB Output is correct
2 Correct 1 ms 6492 KB Output is correct
3 Correct 1 ms 6488 KB Output is correct
4 Correct 1 ms 6488 KB Output is correct
5 Correct 1 ms 6488 KB Output is correct
6 Correct 1 ms 6608 KB Output is correct
7 Correct 2 ms 6492 KB Output is correct
8 Correct 1 ms 6492 KB Output is correct
9 Correct 1 ms 6488 KB Output is correct
10 Correct 1 ms 6488 KB Output is correct
11 Correct 1 ms 6492 KB Output is correct
12 Correct 1 ms 6492 KB Output is correct
13 Correct 146 ms 26212 KB Output is correct
14 Correct 134 ms 26572 KB Output is correct
15 Correct 158 ms 25908 KB Output is correct
16 Correct 154 ms 25168 KB Output is correct
17 Correct 158 ms 24144 KB Output is correct
18 Correct 479 ms 25168 KB Output is correct
19 Correct 172 ms 25040 KB Output is correct
20 Correct 1 ms 6492 KB Output is correct
21 Correct 1 ms 6492 KB Output is correct
22 Correct 1 ms 6492 KB Output is correct
23 Correct 1 ms 6492 KB Output is correct
24 Correct 1 ms 6520 KB Output is correct
25 Correct 1 ms 6492 KB Output is correct
26 Correct 1 ms 6492 KB Output is correct
27 Correct 1 ms 6492 KB Output is correct
28 Correct 1 ms 6492 KB Output is correct
29 Correct 1 ms 6492 KB Output is correct
30 Correct 1 ms 6492 KB Output is correct
31 Correct 2 ms 6492 KB Output is correct
32 Correct 2 ms 6492 KB Output is correct
33 Correct 2 ms 6492 KB Output is correct
34 Correct 2 ms 6492 KB Output is correct
35 Correct 2 ms 6492 KB Output is correct
36 Correct 2 ms 6492 KB Output is correct
37 Correct 3 ms 6492 KB Output is correct
38 Correct 2 ms 6492 KB Output is correct
39 Correct 2 ms 6492 KB Output is correct
40 Correct 2 ms 6492 KB Output is correct
41 Correct 2 ms 6492 KB Output is correct
42 Correct 2 ms 6492 KB Output is correct
43 Correct 2 ms 6492 KB Output is correct
44 Correct 1 ms 6492 KB Output is correct
45 Correct 22 ms 9420 KB Output is correct
46 Correct 20 ms 9556 KB Output is correct
47 Correct 41 ms 9324 KB Output is correct
48 Correct 47 ms 9308 KB Output is correct
49 Correct 48 ms 9296 KB Output is correct
50 Correct 22 ms 9052 KB Output is correct
51 Correct 22 ms 9048 KB Output is correct
52 Correct 68 ms 9556 KB Output is correct
53 Correct 19 ms 9304 KB Output is correct
54 Correct 1 ms 6492 KB Output is correct
55 Correct 1 ms 6492 KB Output is correct
56 Correct 1 ms 6492 KB Output is correct
57 Correct 1 ms 6492 KB Output is correct
58 Correct 1 ms 6492 KB Output is correct
59 Correct 1 ms 6492 KB Output is correct
60 Correct 1 ms 6492 KB Output is correct
61 Correct 1 ms 6492 KB Output is correct
62 Correct 1 ms 6492 KB Output is correct
63 Correct 1 ms 6488 KB Output is correct
64 Correct 1 ms 6488 KB Output is correct
65 Correct 2 ms 6492 KB Output is correct
66 Correct 2 ms 6492 KB Output is correct
67 Correct 2 ms 6680 KB Output is correct
68 Correct 2 ms 6488 KB Output is correct
69 Correct 2 ms 6488 KB Output is correct
70 Correct 2 ms 6492 KB Output is correct
71 Correct 2 ms 6492 KB Output is correct
72 Correct 2 ms 6492 KB Output is correct
73 Correct 2 ms 6492 KB Output is correct
74 Correct 2 ms 6492 KB Output is correct
75 Correct 2 ms 6688 KB Output is correct
76 Correct 2 ms 6488 KB Output is correct
77 Correct 3 ms 6644 KB Output is correct
78 Correct 1 ms 6492 KB Output is correct
79 Correct 22 ms 9408 KB Output is correct
80 Correct 21 ms 9556 KB Output is correct
81 Correct 40 ms 9308 KB Output is correct
82 Correct 47 ms 9488 KB Output is correct
83 Correct 47 ms 9308 KB Output is correct
84 Correct 22 ms 9180 KB Output is correct
85 Correct 22 ms 9132 KB Output is correct
86 Correct 62 ms 9308 KB Output is correct
87 Correct 19 ms 9308 KB Output is correct
88 Correct 29 ms 9560 KB Output is correct
89 Correct 35 ms 9308 KB Output is correct
90 Correct 31 ms 9552 KB Output is correct
91 Correct 39 ms 9444 KB Output is correct
92 Correct 34 ms 9464 KB Output is correct
93 Correct 51 ms 9476 KB Output is correct
94 Correct 42 ms 9304 KB Output is correct
95 Correct 30 ms 9304 KB Output is correct
96 Correct 54 ms 9324 KB Output is correct
97 Correct 70 ms 9608 KB Output is correct
98 Correct 55 ms 9304 KB Output is correct
99 Correct 1 ms 6488 KB Output is correct
100 Correct 1 ms 6492 KB Output is correct
101 Correct 1 ms 6492 KB Output is correct
102 Correct 1 ms 6492 KB Output is correct
103 Correct 1 ms 6492 KB Output is correct
104 Correct 1 ms 6492 KB Output is correct
105 Correct 1 ms 6492 KB Output is correct
106 Correct 1 ms 6492 KB Output is correct
107 Correct 1 ms 6492 KB Output is correct
108 Correct 1 ms 6492 KB Output is correct
109 Correct 1 ms 6492 KB Output is correct
110 Correct 1 ms 6492 KB Output is correct
111 Correct 146 ms 26140 KB Output is correct
112 Correct 139 ms 26452 KB Output is correct
113 Correct 165 ms 26196 KB Output is correct
114 Correct 148 ms 25180 KB Output is correct
115 Correct 158 ms 24212 KB Output is correct
116 Correct 483 ms 25228 KB Output is correct
117 Correct 175 ms 24956 KB Output is correct
118 Correct 2 ms 6492 KB Output is correct
119 Correct 2 ms 6492 KB Output is correct
120 Correct 2 ms 6492 KB Output is correct
121 Correct 2 ms 6492 KB Output is correct
122 Correct 2 ms 6492 KB Output is correct
123 Correct 3 ms 6488 KB Output is correct
124 Correct 2 ms 6488 KB Output is correct
125 Correct 2 ms 6492 KB Output is correct
126 Correct 2 ms 6492 KB Output is correct
127 Correct 2 ms 6492 KB Output is correct
128 Correct 2 ms 6712 KB Output is correct
129 Correct 2 ms 6492 KB Output is correct
130 Correct 2 ms 6492 KB Output is correct
131 Correct 1 ms 6492 KB Output is correct
132 Correct 22 ms 9508 KB Output is correct
133 Correct 21 ms 9564 KB Output is correct
134 Correct 40 ms 9208 KB Output is correct
135 Correct 47 ms 9300 KB Output is correct
136 Correct 48 ms 9300 KB Output is correct
137 Correct 22 ms 9048 KB Output is correct
138 Correct 22 ms 9152 KB Output is correct
139 Correct 63 ms 9196 KB Output is correct
140 Correct 19 ms 9308 KB Output is correct
141 Correct 27 ms 9556 KB Output is correct
142 Correct 34 ms 9308 KB Output is correct
143 Correct 32 ms 9560 KB Output is correct
144 Correct 41 ms 9552 KB Output is correct
145 Correct 35 ms 9308 KB Output is correct
146 Correct 54 ms 9300 KB Output is correct
147 Correct 38 ms 9392 KB Output is correct
148 Correct 29 ms 9304 KB Output is correct
149 Correct 54 ms 9412 KB Output is correct
150 Correct 69 ms 9300 KB Output is correct
151 Correct 55 ms 9296 KB Output is correct
152 Correct 621 ms 84432 KB Output is correct
153 Correct 637 ms 83900 KB Output is correct
154 Correct 640 ms 84932 KB Output is correct
155 Correct 1047 ms 82004 KB Output is correct
156 Correct 973 ms 80392 KB Output is correct
157 Correct 582 ms 75048 KB Output is correct
158 Correct 824 ms 78268 KB Output is correct
159 Correct 1831 ms 80584 KB Output is correct
160 Correct 1825 ms 97300 KB Output is correct
161 Correct 869 ms 94780 KB Output is correct
162 Correct 715 ms 95316 KB Output is correct