Submission #686430

# Submission time Handle Problem Language Result Execution time Memory
686430 2023-01-25T09:24:21 Z cig32 The short shank; Redemption (BOI21_prison) C++17
80 / 100
2000 ms 138984 KB
#pragma GCC optimize("Ofast")
#include <bits/stdc++.h>
using namespace std;
const int MAXN = 2e6 + 10;
const int MOD = 1e9 + 7;
mt19937_64 rng((int)std::chrono::steady_clock::now().time_since_epoch().count());
int rnd(int x, int y) {
  int u = uniform_int_distribution<int>(x, y)(rng); return u;
}
int bm(int b, int p) {
  if(p==0) return 1 % MOD;
  int r = bm(b, p >> 1);
  if(p&1) return (((r*r) % MOD) * b) % MOD;
  return (r*r) % MOD;
}
int inv(int b) { 
  return bm(b, MOD-2);
}
int fastlog(int x) {
  return (x == 0 ? -1 : 64 - __builtin_clzll(x) - 1);
}
void printcase(int i) { cout << "Case #" << i << ": "; }
 
struct node {
  int ma = 0, upd = 0, idx;
} st[4 * MAXN];
void build(int l, int r, int idx) {
  if(l == r) {
    st[idx].idx = l; return;
  }
  int mid = (l + r) >> 1;
  build(l, mid, (idx<<1)+1);
  build(mid+1, r, (idx<<1)+2);
  st[idx].ma = max(st[(idx<<1)+1].ma, st[(idx<<1)+2].ma);
  st[idx].idx = (st[(idx<<1)+1].ma == st[idx].ma ? st[(idx<<1)+1].idx : st[(idx<<1)+2].idx);
}
void u(int l, int r, int constl, int constr, int idx, int val) {
  if(l <= constl && constr <= r) {
    st[idx].ma += val;
    st[idx].upd += val;
    return;
  }
  int mid = (constl + constr) >> 1;
  st[(idx<<1)+1].ma += st[idx].upd;
  st[(idx<<1)+1].upd += st[idx].upd;
  st[(idx<<1)+2].ma += st[idx].upd;
  st[(idx<<1)+2].upd += st[idx].upd;
  st[idx].upd = 0;
  if(mid < l || r < constl) u(l, r, mid+1, constr, (idx<<1)+2, val);
  else if(constr < l || r < mid+1) u(l, r, constl, mid, (idx<<1)+1, val);
  else {
    u(l, r, constl, mid, (idx<<1)+1,val); u(l, r, mid+1, constr, (idx<<1)+2, val);
  }
  st[idx].ma = max(st[(idx<<1)+1].ma, st[(idx<<1)+2].ma);
  st[idx].idx = (st[(idx<<1)+1].ma == st[idx].ma ? st[(idx<<1)+1].idx : st[(idx<<1)+2].idx);
}
pair<int, int> qu(int l, int r, int constl, int constr, int idx) {
  if(l <= constl && constr <= r) return {st[idx].ma, st[idx].idx};
  int mid = (constl + constr) >> 1;
  st[(idx<<1)+1].ma += st[idx].upd;
  st[(idx<<1)+1].upd += st[idx].upd;
  st[(idx<<1)+2].ma += st[idx].upd;
  st[(idx<<1)+2].upd += st[idx].upd;
  st[idx].upd = 0;
  if(mid < l || r < constl) return qu(l, r, mid+1, constr, (idx<<1)+2);
  else if(constr < l || r < mid+1) return qu(l, r, constl, mid, (idx<<1)+1);
  else {
    return max(qu(l, r, constl, mid, (idx<<1)+1), qu(l, r, mid+1, constr, (idx<<1)+2));
  }
}
 
int seg[4 * MAXN];
 
void u2(int l, int r, int tar, int idx, int val) {
  if(l == r) {
    seg[idx] = val; return;
  }
  int mid = (l + r) >> 1;
  if(tar <= mid) u2(l, mid, tar, (idx<<1)+1, val);
  else u2(mid+1, r, tar, (idx<<1)+2, val);
  seg[idx] = min(seg[(idx<<1)+1], seg[(idx<<1)+2]);
}
 
int qu2(int l, int r, int constl, int constr, int idx, int val) { // first <= v
  if(l <= constl && constr <= r) {
    if(seg[idx] > val) return -1;
    while(constl < constr) {
      int mid = (constl + constr) >> 1;
      if(seg[(idx<<1)+1] <= val) constr = mid, idx = (idx<<1)+1;
      else constl = mid+1, idx = (idx<<1)+2;
    }
    return constl;
  }
  int mid = (constl + constr) >> 1;
  if(mid < l || r < constl) return qu2(l, r, mid+1, constr, (idx<<1)+2, val);
  else if(constr < l || r < mid+1) return qu2(l, r, constl, mid, (idx<<1)+1, val);
  else {
    int lc = qu2(l, r, constl, mid, (idx<<1)+1, val);
    if(lc != -1) return lc;
    return qu2(l, r, mid+1, constr, (idx<<1)+2, val);
  }
}
inline int read() {
  int x = 0, c = getchar(), neg = false;
  while(('0' > c || c > '9') && c!='-' && c!=EOF) c = getchar();
  if(c == '-') neg = true, c = getchar();
  while('0' <= c && c <= '9') x = x*10 + (c^'0'), c = getchar();
  if(neg) x = -x;
  return x; // returns 0 if EOF
}
int32_t main() {
  ios::sync_with_stdio(0); cin.tie(0);
  int32_t n, d, t;
  n = read();
  d = read();
  t = read();
  pair<int, int> tri[n+1];
  for(int i=1; i<=n; i++) {
    int32_t x = read();
    tri[i] = {x-i, i};
  }
  sort(tri+1, tri+1+n);
  build(1, n-1, 0);
  int ans = 0;
  int pr = 0;
  priority_queue<int> ok;
  int sv[n+1];
  for(int i=n; i>=1; i--) {
    while(pr+1 <= n && tri[pr+1].first <= t-i) {
      pr++;
      if(tri[pr].second <= i) ok.push(tri[pr].second);
    }
    int bruh = (ok.size() ? ok.top() : -1);
    if(bruh == i) ok.pop();
    sv[i]= bruh;
    if(bruh != -1) {
      ans++;
      if(bruh < i) {
        u(bruh, i-1, 1, n-1, 0, 1);
      }
      u2(1, n, i, 0, bruh);
    }
    else {
      u2(1, n, i, 0, MOD);
    }
  }
  while(d--) {
    int ss = qu(1, n-1, 1, n-1, 0).second;
    while(1) {
      int idx = qu2(ss+1, n, 1, n, 0, ss); 
      if(idx == -1) break;
      u2(1, n, idx, 0, MOD); 
      u(sv[idx], idx-1, 1, n-1, 0, -1);
      ans--;
    }
  }
  cout << ans << "\n";
}
# Verdict Execution time Memory Grader output
1 Correct 37 ms 94200 KB Output is correct
2 Correct 39 ms 94212 KB Output is correct
3 Correct 42 ms 94252 KB Output is correct
4 Correct 37 ms 94168 KB Output is correct
5 Correct 46 ms 94188 KB Output is correct
6 Correct 41 ms 94204 KB Output is correct
7 Correct 43 ms 94156 KB Output is correct
8 Correct 37 ms 94248 KB Output is correct
9 Correct 37 ms 94172 KB Output is correct
10 Correct 38 ms 94132 KB Output is correct
11 Correct 37 ms 94160 KB Output is correct
# Verdict Execution time Memory Grader output
1 Correct 36 ms 94156 KB Output is correct
2 Correct 249 ms 105072 KB Output is correct
3 Correct 226 ms 105700 KB Output is correct
4 Correct 230 ms 104964 KB Output is correct
5 Correct 214 ms 104196 KB Output is correct
6 Correct 227 ms 104160 KB Output is correct
7 Correct 659 ms 104204 KB Output is correct
8 Correct 236 ms 104212 KB Output is correct
# Verdict Execution time Memory Grader output
1 Correct 37 ms 94200 KB Output is correct
2 Correct 39 ms 94212 KB Output is correct
3 Correct 42 ms 94252 KB Output is correct
4 Correct 37 ms 94168 KB Output is correct
5 Correct 46 ms 94188 KB Output is correct
6 Correct 41 ms 94204 KB Output is correct
7 Correct 43 ms 94156 KB Output is correct
8 Correct 37 ms 94248 KB Output is correct
9 Correct 37 ms 94172 KB Output is correct
10 Correct 38 ms 94132 KB Output is correct
11 Correct 37 ms 94160 KB Output is correct
12 Correct 39 ms 94164 KB Output is correct
13 Correct 37 ms 94192 KB Output is correct
14 Correct 38 ms 94240 KB Output is correct
15 Correct 38 ms 94260 KB Output is correct
16 Correct 43 ms 94140 KB Output is correct
17 Correct 42 ms 94180 KB Output is correct
18 Correct 36 ms 94156 KB Output is correct
19 Correct 39 ms 94156 KB Output is correct
20 Correct 41 ms 94148 KB Output is correct
21 Correct 52 ms 94152 KB Output is correct
22 Correct 39 ms 94180 KB Output is correct
23 Correct 38 ms 94316 KB Output is correct
24 Correct 39 ms 94284 KB Output is correct
25 Correct 40 ms 94248 KB Output is correct
26 Correct 39 ms 94248 KB Output is correct
27 Correct 43 ms 94348 KB Output is correct
28 Correct 38 ms 94260 KB Output is correct
29 Correct 59 ms 94284 KB Output is correct
30 Correct 44 ms 94232 KB Output is correct
31 Correct 41 ms 94236 KB Output is correct
32 Correct 54 ms 94256 KB Output is correct
33 Correct 40 ms 94220 KB Output is correct
34 Correct 47 ms 94252 KB Output is correct
35 Correct 45 ms 94280 KB Output is correct
# Verdict Execution time Memory Grader output
1 Correct 39 ms 94168 KB Output is correct
2 Correct 76 ms 96376 KB Output is correct
3 Correct 68 ms 96332 KB Output is correct
4 Correct 90 ms 96232 KB Output is correct
5 Correct 99 ms 96372 KB Output is correct
6 Correct 103 ms 96260 KB Output is correct
7 Correct 64 ms 96072 KB Output is correct
8 Correct 76 ms 96136 KB Output is correct
9 Correct 124 ms 96204 KB Output is correct
10 Correct 66 ms 96248 KB Output is correct
# Verdict Execution time Memory Grader output
1 Correct 37 ms 94200 KB Output is correct
2 Correct 39 ms 94212 KB Output is correct
3 Correct 42 ms 94252 KB Output is correct
4 Correct 37 ms 94168 KB Output is correct
5 Correct 46 ms 94188 KB Output is correct
6 Correct 41 ms 94204 KB Output is correct
7 Correct 43 ms 94156 KB Output is correct
8 Correct 37 ms 94248 KB Output is correct
9 Correct 37 ms 94172 KB Output is correct
10 Correct 38 ms 94132 KB Output is correct
11 Correct 37 ms 94160 KB Output is correct
12 Correct 39 ms 94164 KB Output is correct
13 Correct 37 ms 94192 KB Output is correct
14 Correct 38 ms 94240 KB Output is correct
15 Correct 38 ms 94260 KB Output is correct
16 Correct 43 ms 94140 KB Output is correct
17 Correct 42 ms 94180 KB Output is correct
18 Correct 36 ms 94156 KB Output is correct
19 Correct 39 ms 94156 KB Output is correct
20 Correct 41 ms 94148 KB Output is correct
21 Correct 52 ms 94152 KB Output is correct
22 Correct 39 ms 94180 KB Output is correct
23 Correct 38 ms 94316 KB Output is correct
24 Correct 39 ms 94284 KB Output is correct
25 Correct 40 ms 94248 KB Output is correct
26 Correct 39 ms 94248 KB Output is correct
27 Correct 43 ms 94348 KB Output is correct
28 Correct 38 ms 94260 KB Output is correct
29 Correct 59 ms 94284 KB Output is correct
30 Correct 44 ms 94232 KB Output is correct
31 Correct 41 ms 94236 KB Output is correct
32 Correct 54 ms 94256 KB Output is correct
33 Correct 40 ms 94220 KB Output is correct
34 Correct 47 ms 94252 KB Output is correct
35 Correct 45 ms 94280 KB Output is correct
36 Correct 39 ms 94168 KB Output is correct
37 Correct 76 ms 96376 KB Output is correct
38 Correct 68 ms 96332 KB Output is correct
39 Correct 90 ms 96232 KB Output is correct
40 Correct 99 ms 96372 KB Output is correct
41 Correct 103 ms 96260 KB Output is correct
42 Correct 64 ms 96072 KB Output is correct
43 Correct 76 ms 96136 KB Output is correct
44 Correct 124 ms 96204 KB Output is correct
45 Correct 66 ms 96248 KB Output is correct
46 Correct 36 ms 94220 KB Output is correct
47 Correct 41 ms 94224 KB Output is correct
48 Correct 38 ms 94216 KB Output is correct
49 Correct 38 ms 94220 KB Output is correct
50 Correct 45 ms 94144 KB Output is correct
51 Correct 43 ms 94248 KB Output is correct
52 Correct 42 ms 94156 KB Output is correct
53 Correct 44 ms 94240 KB Output is correct
54 Correct 50 ms 94168 KB Output is correct
55 Correct 42 ms 94156 KB Output is correct
56 Correct 47 ms 94144 KB Output is correct
57 Correct 54 ms 94292 KB Output is correct
58 Correct 53 ms 94284 KB Output is correct
59 Correct 52 ms 94236 KB Output is correct
60 Correct 45 ms 94232 KB Output is correct
61 Correct 42 ms 94312 KB Output is correct
62 Correct 42 ms 94304 KB Output is correct
63 Correct 41 ms 94316 KB Output is correct
64 Correct 39 ms 94208 KB Output is correct
65 Correct 41 ms 94260 KB Output is correct
66 Correct 43 ms 94272 KB Output is correct
67 Correct 47 ms 94240 KB Output is correct
68 Correct 58 ms 94236 KB Output is correct
69 Correct 42 ms 94280 KB Output is correct
70 Correct 45 ms 94240 KB Output is correct
71 Correct 78 ms 96356 KB Output is correct
72 Correct 69 ms 96380 KB Output is correct
73 Correct 98 ms 96352 KB Output is correct
74 Correct 111 ms 96368 KB Output is correct
75 Correct 117 ms 96348 KB Output is correct
76 Correct 66 ms 96076 KB Output is correct
77 Correct 75 ms 96104 KB Output is correct
78 Correct 124 ms 96152 KB Output is correct
79 Correct 60 ms 96048 KB Output is correct
80 Correct 102 ms 96288 KB Output is correct
81 Correct 86 ms 96360 KB Output is correct
82 Correct 91 ms 96392 KB Output is correct
83 Correct 108 ms 96196 KB Output is correct
84 Correct 91 ms 96108 KB Output is correct
85 Correct 131 ms 96384 KB Output is correct
86 Correct 92 ms 96108 KB Output is correct
87 Correct 80 ms 96128 KB Output is correct
88 Correct 108 ms 96112 KB Output is correct
89 Correct 100 ms 96060 KB Output is correct
90 Correct 111 ms 96136 KB Output is correct
# Verdict Execution time Memory Grader output
1 Correct 37 ms 94200 KB Output is correct
2 Correct 39 ms 94212 KB Output is correct
3 Correct 42 ms 94252 KB Output is correct
4 Correct 37 ms 94168 KB Output is correct
5 Correct 46 ms 94188 KB Output is correct
6 Correct 41 ms 94204 KB Output is correct
7 Correct 43 ms 94156 KB Output is correct
8 Correct 37 ms 94248 KB Output is correct
9 Correct 37 ms 94172 KB Output is correct
10 Correct 38 ms 94132 KB Output is correct
11 Correct 37 ms 94160 KB Output is correct
12 Correct 36 ms 94156 KB Output is correct
13 Correct 249 ms 105072 KB Output is correct
14 Correct 226 ms 105700 KB Output is correct
15 Correct 230 ms 104964 KB Output is correct
16 Correct 214 ms 104196 KB Output is correct
17 Correct 227 ms 104160 KB Output is correct
18 Correct 659 ms 104204 KB Output is correct
19 Correct 236 ms 104212 KB Output is correct
20 Correct 39 ms 94164 KB Output is correct
21 Correct 37 ms 94192 KB Output is correct
22 Correct 38 ms 94240 KB Output is correct
23 Correct 38 ms 94260 KB Output is correct
24 Correct 43 ms 94140 KB Output is correct
25 Correct 42 ms 94180 KB Output is correct
26 Correct 36 ms 94156 KB Output is correct
27 Correct 39 ms 94156 KB Output is correct
28 Correct 41 ms 94148 KB Output is correct
29 Correct 52 ms 94152 KB Output is correct
30 Correct 39 ms 94180 KB Output is correct
31 Correct 38 ms 94316 KB Output is correct
32 Correct 39 ms 94284 KB Output is correct
33 Correct 40 ms 94248 KB Output is correct
34 Correct 39 ms 94248 KB Output is correct
35 Correct 43 ms 94348 KB Output is correct
36 Correct 38 ms 94260 KB Output is correct
37 Correct 59 ms 94284 KB Output is correct
38 Correct 44 ms 94232 KB Output is correct
39 Correct 41 ms 94236 KB Output is correct
40 Correct 54 ms 94256 KB Output is correct
41 Correct 40 ms 94220 KB Output is correct
42 Correct 47 ms 94252 KB Output is correct
43 Correct 45 ms 94280 KB Output is correct
44 Correct 39 ms 94168 KB Output is correct
45 Correct 76 ms 96376 KB Output is correct
46 Correct 68 ms 96332 KB Output is correct
47 Correct 90 ms 96232 KB Output is correct
48 Correct 99 ms 96372 KB Output is correct
49 Correct 103 ms 96260 KB Output is correct
50 Correct 64 ms 96072 KB Output is correct
51 Correct 76 ms 96136 KB Output is correct
52 Correct 124 ms 96204 KB Output is correct
53 Correct 66 ms 96248 KB Output is correct
54 Correct 36 ms 94220 KB Output is correct
55 Correct 41 ms 94224 KB Output is correct
56 Correct 38 ms 94216 KB Output is correct
57 Correct 38 ms 94220 KB Output is correct
58 Correct 45 ms 94144 KB Output is correct
59 Correct 43 ms 94248 KB Output is correct
60 Correct 42 ms 94156 KB Output is correct
61 Correct 44 ms 94240 KB Output is correct
62 Correct 50 ms 94168 KB Output is correct
63 Correct 42 ms 94156 KB Output is correct
64 Correct 47 ms 94144 KB Output is correct
65 Correct 54 ms 94292 KB Output is correct
66 Correct 53 ms 94284 KB Output is correct
67 Correct 52 ms 94236 KB Output is correct
68 Correct 45 ms 94232 KB Output is correct
69 Correct 42 ms 94312 KB Output is correct
70 Correct 42 ms 94304 KB Output is correct
71 Correct 41 ms 94316 KB Output is correct
72 Correct 39 ms 94208 KB Output is correct
73 Correct 41 ms 94260 KB Output is correct
74 Correct 43 ms 94272 KB Output is correct
75 Correct 47 ms 94240 KB Output is correct
76 Correct 58 ms 94236 KB Output is correct
77 Correct 42 ms 94280 KB Output is correct
78 Correct 45 ms 94240 KB Output is correct
79 Correct 78 ms 96356 KB Output is correct
80 Correct 69 ms 96380 KB Output is correct
81 Correct 98 ms 96352 KB Output is correct
82 Correct 111 ms 96368 KB Output is correct
83 Correct 117 ms 96348 KB Output is correct
84 Correct 66 ms 96076 KB Output is correct
85 Correct 75 ms 96104 KB Output is correct
86 Correct 124 ms 96152 KB Output is correct
87 Correct 60 ms 96048 KB Output is correct
88 Correct 102 ms 96288 KB Output is correct
89 Correct 86 ms 96360 KB Output is correct
90 Correct 91 ms 96392 KB Output is correct
91 Correct 108 ms 96196 KB Output is correct
92 Correct 91 ms 96108 KB Output is correct
93 Correct 131 ms 96384 KB Output is correct
94 Correct 92 ms 96108 KB Output is correct
95 Correct 80 ms 96128 KB Output is correct
96 Correct 108 ms 96112 KB Output is correct
97 Correct 100 ms 96060 KB Output is correct
98 Correct 111 ms 96136 KB Output is correct
99 Correct 50 ms 94284 KB Output is correct
100 Correct 49 ms 94176 KB Output is correct
101 Correct 44 ms 94252 KB Output is correct
102 Correct 44 ms 94156 KB Output is correct
103 Correct 40 ms 94148 KB Output is correct
104 Correct 42 ms 94164 KB Output is correct
105 Correct 51 ms 94172 KB Output is correct
106 Correct 49 ms 94160 KB Output is correct
107 Correct 43 ms 94172 KB Output is correct
108 Correct 43 ms 94216 KB Output is correct
109 Correct 48 ms 94200 KB Output is correct
110 Correct 40 ms 94132 KB Output is correct
111 Correct 255 ms 105060 KB Output is correct
112 Correct 254 ms 105520 KB Output is correct
113 Correct 258 ms 105012 KB Output is correct
114 Correct 225 ms 104132 KB Output is correct
115 Correct 273 ms 104136 KB Output is correct
116 Correct 665 ms 104124 KB Output is correct
117 Correct 271 ms 104188 KB Output is correct
118 Correct 44 ms 94320 KB Output is correct
119 Correct 45 ms 94272 KB Output is correct
120 Correct 51 ms 94312 KB Output is correct
121 Correct 49 ms 94280 KB Output is correct
122 Correct 45 ms 94324 KB Output is correct
123 Correct 53 ms 94280 KB Output is correct
124 Correct 56 ms 94228 KB Output is correct
125 Correct 53 ms 94240 KB Output is correct
126 Correct 47 ms 94212 KB Output is correct
127 Correct 49 ms 94260 KB Output is correct
128 Correct 46 ms 94344 KB Output is correct
129 Correct 49 ms 94312 KB Output is correct
130 Correct 44 ms 94280 KB Output is correct
131 Correct 42 ms 94156 KB Output is correct
132 Correct 75 ms 96344 KB Output is correct
133 Correct 77 ms 96392 KB Output is correct
134 Correct 93 ms 96372 KB Output is correct
135 Correct 116 ms 96332 KB Output is correct
136 Correct 126 ms 96276 KB Output is correct
137 Correct 68 ms 96096 KB Output is correct
138 Correct 71 ms 96076 KB Output is correct
139 Correct 131 ms 96136 KB Output is correct
140 Correct 57 ms 96176 KB Output is correct
141 Correct 85 ms 96352 KB Output is correct
142 Correct 97 ms 96360 KB Output is correct
143 Correct 98 ms 96268 KB Output is correct
144 Correct 116 ms 96212 KB Output is correct
145 Correct 88 ms 96152 KB Output is correct
146 Correct 139 ms 96264 KB Output is correct
147 Correct 98 ms 96060 KB Output is correct
148 Correct 77 ms 96152 KB Output is correct
149 Correct 125 ms 96188 KB Output is correct
150 Correct 109 ms 96044 KB Output is correct
151 Correct 106 ms 96148 KB Output is correct
152 Correct 1087 ms 137196 KB Output is correct
153 Correct 1164 ms 137808 KB Output is correct
154 Correct 1018 ms 138984 KB Output is correct
155 Correct 1421 ms 135488 KB Output is correct
156 Correct 1328 ms 134652 KB Output is correct
157 Correct 730 ms 134480 KB Output is correct
158 Correct 1036 ms 134404 KB Output is correct
159 Execution timed out 2045 ms 134424 KB Time limit exceeded
160 Halted 0 ms 0 KB -