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답안 #675888

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
675888 2022-12-28T09:44:30 Z ParsaS The short shank; Redemption (BOI21_prison) C++17
100 / 100
 1139 ms 308804 KB 
// In the name of God
#include<bits/stdc++.h>
using namespace std;
#define pb push_back
#define fi first
#define se second
#define mp make_pair
typedef long long ll;
const int N = 2e6 + 5;
int n, D, T, t[N];
int lt[N], par[N], tim, tin[N], tout[N];
vector<int> adj[N];
vector<pair<int, int> > vec;
bool vis[N];
int seg[N << 2], mx[N << 2], lz[N << 2], h[N];

void dfs(int v) {
    tin[v] = tim++;
    vec.pb(mp(h[v], v));
    for (auto u : adj[v]) {
        h[u] = h[v] + 1;
        dfs(u);
    }
    tout[v] = tim - 1;
}
void build(int v = 1, int tl = 0, int tr = tim) {
    if (tl == tr) {
        seg[v] = vec[tl].se; 
        mx[v] = vec[tl].fi;
        return;
    }
    int mid = (tl + tr) >> 1;
    build(v << 1, tl, mid);
    build(v << 1 | 1, mid + 1, tr);
    seg[v] = seg[v << 1];
    mx[v] = max(mx[v << 1], mx[v << 1 | 1]);
    if (h[seg[v << 1 | 1]] > h[seg[v << 1]])
        seg[v] = seg[v << 1 | 1];
}
void shift(int v, int tl, int tr) {
    mx[v] -= lz[v];
    if (tl < tr) {
        lz[v << 1] += lz[v];
        lz[v << 1 | 1] += lz[v];
    }
    lz[v] = 0;
}
void upd(int l, int r, int v = 1, int tl = 0, int tr = tim) {
    shift(v, tl, tr);
    if (l > tr || r < tl)
        return;
    if (tl >= l && tr <= r) {
        lz[v]++;
        shift(v, tl, tr);
        return;
    }
    int mid = (tl + tr) >> 1;
    upd(l, r, v << 1, tl, mid);
    upd(l, r, v << 1 | 1, mid + 1, tr);
    seg[v] = seg[v << 1];
    mx[v] = max(mx[v << 1], mx[v << 1 | 1]);
    if (mx[v] == mx[v << 1 | 1])
        seg[v] = seg[v << 1 | 1];
}
pair<int, int> query(int l, int r, int v = 1, int tl = 0, int tr = tim) {
    shift(v, tl, tr);
    pair<int, int> out(-1, n + 1);
    if (l > tr || r < tl)
        return mp(-1, n + 1);
    if (tl >= l && tr <= r)
        return mp(mx[v], seg[v]);
    int mid = (tl + tr) >> 1;
    pair<int, int> pl = query(l, r, v << 1, tl, mid);
    pair<int, int> pr = query(l, r, v << 1 | 1, mid + 1, tr);
    return pl > pr ? pl : pr;
}

void solve() {
    cin >> n >> D >> T;
    for (int i = 0; i < n; i++)
        cin >> t[i];
    stack<int> st;
    memset(par, -1, sizeof par);
    memset(lt, -1, sizeof lt);
    vector<int> tmp;
    int cnt = 0;
    for (int i = 0; i < n; i++) {
        while (!st.empty() && t[st.top()] + i - st.top() > T) {
            tmp.pb(st.top());
            st.pop();
        }
        if (t[i] > T && st.empty())
            cnt++;
        if (!st.empty() && t[i] > T) {
            lt[i] = st.top();
            while (!tmp.empty() && tmp.back() >= lt[i]) {
                int j = tmp.back();
                if (lt[j] != -1) {
                    adj[i].pb(j);
                    par[j] = i;
                }
                tmp.pop_back();
            }
        }
        st.push(i);
    }
    for (int i = 0; i < n; i++) {
        if (par[i] == -1 && lt[i] != -1) {
            adj[n].pb(i);
            par[i] = n;
        }
    }
    dfs(n);
    tim--;
    build();
    vis[n] = true;
    int ans = 0;
    while (D--) {
        shift(1, 0, n);
        int v = seg[1];
        if (mx[1] <= 0)
            break;
        ans += mx[1];
        while (!vis[v]) {
            upd(tin[v], tout[v]);
            vis[v] = true;
            v = par[v];
        }
    }
    cout << n - ans - cnt << '\n';
}

int32_t main() {
    ios::sync_with_stdio(0), cin.tie(0), cout.tie(0);
    solve();
    return 0;
}

Subtask #1
15.0 / 15.0

# 결과 실행 시간 메모리 Grader output
1 Correct 28 ms 62952 KB Output is correct
2 Correct 28 ms 63008 KB Output is correct
3 Correct 28 ms 62976 KB Output is correct
4 Correct 34 ms 62900 KB Output is correct
5 Correct 28 ms 62916 KB Output is correct
6 Correct 29 ms 62928 KB Output is correct
7 Correct 31 ms 62956 KB Output is correct
8 Correct 30 ms 62996 KB Output is correct
9 Correct 28 ms 62920 KB Output is correct
10 Correct 28 ms 63016 KB Output is correct
11 Correct 28 ms 62948 KB Output is correct

Subtask #2
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 29 ms 62988 KB Output is correct
2 Correct 100 ms 82952 KB Output is correct
3 Correct 93 ms 80512 KB Output is correct
4 Correct 112 ms 90196 KB Output is correct
5 Correct 96 ms 90500 KB Output is correct
6 Correct 113 ms 86332 KB Output is correct
7 Correct 263 ms 134404 KB Output is correct
8 Correct 121 ms 88648 KB Output is correct

Subtask #3
20.0 / 20.0

# 결과 실행 시간 메모리 Grader output
1 Correct 28 ms 62952 KB Output is correct
2 Correct 28 ms 63008 KB Output is correct
3 Correct 28 ms 62976 KB Output is correct
4 Correct 34 ms 62900 KB Output is correct
5 Correct 28 ms 62916 KB Output is correct
6 Correct 29 ms 62928 KB Output is correct
7 Correct 31 ms 62956 KB Output is correct
8 Correct 30 ms 62996 KB Output is correct
9 Correct 28 ms 62920 KB Output is correct
10 Correct 28 ms 63016 KB Output is correct
11 Correct 28 ms 62948 KB Output is correct
12 Correct 39 ms 62936 KB Output is correct
13 Correct 30 ms 62928 KB Output is correct
14 Correct 30 ms 62952 KB Output is correct
15 Correct 35 ms 62912 KB Output is correct
16 Correct 30 ms 63020 KB Output is correct
17 Correct 30 ms 62936 KB Output is correct
18 Correct 30 ms 63020 KB Output is correct
19 Correct 33 ms 62952 KB Output is correct
20 Correct 30 ms 63024 KB Output is correct
21 Correct 30 ms 62932 KB Output is correct
22 Correct 29 ms 62964 KB Output is correct
23 Correct 30 ms 63180 KB Output is correct
24 Correct 30 ms 63100 KB Output is correct
25 Correct 30 ms 63216 KB Output is correct
26 Correct 30 ms 63188 KB Output is correct
27 Correct 31 ms 63172 KB Output is correct
28 Correct 30 ms 63196 KB Output is correct
29 Correct 30 ms 63188 KB Output is correct
30 Correct 30 ms 63196 KB Output is correct
31 Correct 35 ms 63128 KB Output is correct
32 Correct 30 ms 63108 KB Output is correct
33 Correct 30 ms 63188 KB Output is correct
34 Correct 30 ms 63296 KB Output is correct
35 Correct 30 ms 63320 KB Output is correct

Subtask #4
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 28 ms 62960 KB Output is correct
2 Correct 40 ms 67044 KB Output is correct
3 Correct 40 ms 66756 KB Output is correct
4 Correct 55 ms 69740 KB Output is correct
5 Correct 53 ms 70724 KB Output is correct
6 Correct 59 ms 70920 KB Output is correct
7 Correct 41 ms 66440 KB Output is correct
8 Correct 40 ms 66124 KB Output is correct
9 Correct 60 ms 74984 KB Output is correct
10 Correct 37 ms 66528 KB Output is correct

Subtask #5
25.0 / 25.0

# 결과 실행 시간 메모리 Grader output
1 Correct 28 ms 62952 KB Output is correct
2 Correct 28 ms 63008 KB Output is correct
3 Correct 28 ms 62976 KB Output is correct
4 Correct 34 ms 62900 KB Output is correct
5 Correct 28 ms 62916 KB Output is correct
6 Correct 29 ms 62928 KB Output is correct
7 Correct 31 ms 62956 KB Output is correct
8 Correct 30 ms 62996 KB Output is correct
9 Correct 28 ms 62920 KB Output is correct
10 Correct 28 ms 63016 KB Output is correct
11 Correct 28 ms 62948 KB Output is correct
12 Correct 39 ms 62936 KB Output is correct
13 Correct 30 ms 62928 KB Output is correct
14 Correct 30 ms 62952 KB Output is correct
15 Correct 35 ms 62912 KB Output is correct
16 Correct 30 ms 63020 KB Output is correct
17 Correct 30 ms 62936 KB Output is correct
18 Correct 30 ms 63020 KB Output is correct
19 Correct 33 ms 62952 KB Output is correct
20 Correct 30 ms 63024 KB Output is correct
21 Correct 30 ms 62932 KB Output is correct
22 Correct 29 ms 62964 KB Output is correct
23 Correct 30 ms 63180 KB Output is correct
24 Correct 30 ms 63100 KB Output is correct
25 Correct 30 ms 63216 KB Output is correct
26 Correct 30 ms 63188 KB Output is correct
27 Correct 31 ms 63172 KB Output is correct
28 Correct 30 ms 63196 KB Output is correct
29 Correct 30 ms 63188 KB Output is correct
30 Correct 30 ms 63196 KB Output is correct
31 Correct 35 ms 63128 KB Output is correct
32 Correct 30 ms 63108 KB Output is correct
33 Correct 30 ms 63188 KB Output is correct
34 Correct 30 ms 63296 KB Output is correct
35 Correct 30 ms 63320 KB Output is correct
36 Correct 28 ms 62960 KB Output is correct
37 Correct 40 ms 67044 KB Output is correct
38 Correct 40 ms 66756 KB Output is correct
39 Correct 55 ms 69740 KB Output is correct
40 Correct 53 ms 70724 KB Output is correct
41 Correct 59 ms 70920 KB Output is correct
42 Correct 41 ms 66440 KB Output is correct
43 Correct 40 ms 66124 KB Output is correct
44 Correct 60 ms 74984 KB Output is correct
45 Correct 37 ms 66528 KB Output is correct
46 Correct 30 ms 62948 KB Output is correct
47 Correct 28 ms 62932 KB Output is correct
48 Correct 29 ms 62928 KB Output is correct
49 Correct 30 ms 63060 KB Output is correct
50 Correct 29 ms 62948 KB Output is correct
51 Correct 29 ms 62932 KB Output is correct
52 Correct 29 ms 62984 KB Output is correct
53 Correct 29 ms 62996 KB Output is correct
54 Correct 29 ms 63020 KB Output is correct
55 Correct 30 ms 62968 KB Output is correct
56 Correct 29 ms 62924 KB Output is correct
57 Correct 33 ms 63252 KB Output is correct
58 Correct 30 ms 63096 KB Output is correct
59 Correct 31 ms 63284 KB Output is correct
60 Correct 30 ms 63176 KB Output is correct
61 Correct 30 ms 63188 KB Output is correct
62 Correct 30 ms 63188 KB Output is correct
63 Correct 34 ms 63212 KB Output is correct
64 Correct 30 ms 63112 KB Output is correct
65 Correct 31 ms 63180 KB Output is correct
66 Correct 30 ms 63084 KB Output is correct
67 Correct 30 ms 63080 KB Output is correct
68 Correct 30 ms 63288 KB Output is correct
69 Correct 31 ms 63264 KB Output is correct
70 Correct 29 ms 62932 KB Output is correct
71 Correct 43 ms 67128 KB Output is correct
72 Correct 45 ms 66632 KB Output is correct
73 Correct 54 ms 69672 KB Output is correct
74 Correct 54 ms 70796 KB Output is correct
75 Correct 56 ms 70920 KB Output is correct
76 Correct 41 ms 66396 KB Output is correct
77 Correct 41 ms 66128 KB Output is correct
78 Correct 60 ms 74944 KB Output is correct
79 Correct 37 ms 66536 KB Output is correct
80 Correct 45 ms 66992 KB Output is correct
81 Correct 51 ms 67396 KB Output is correct
82 Correct 47 ms 67012 KB Output is correct
83 Correct 63 ms 68544 KB Output is correct
84 Correct 50 ms 67404 KB Output is correct
85 Correct 61 ms 71224 KB Output is correct
86 Correct 52 ms 68228 KB Output is correct
87 Correct 45 ms 66024 KB Output is correct
88 Correct 67 ms 72128 KB Output is correct
89 Correct 60 ms 74664 KB Output is correct
90 Correct 62 ms 70992 KB Output is correct

Subtask #6
20.0 / 20.0

# 결과 실행 시간 메모리 Grader output
1 Correct 28 ms 62952 KB Output is correct
2 Correct 28 ms 63008 KB Output is correct
3 Correct 28 ms 62976 KB Output is correct
4 Correct 34 ms 62900 KB Output is correct
5 Correct 28 ms 62916 KB Output is correct
6 Correct 29 ms 62928 KB Output is correct
7 Correct 31 ms 62956 KB Output is correct
8 Correct 30 ms 62996 KB Output is correct
9 Correct 28 ms 62920 KB Output is correct
10 Correct 28 ms 63016 KB Output is correct
11 Correct 28 ms 62948 KB Output is correct
12 Correct 29 ms 62988 KB Output is correct
13 Correct 100 ms 82952 KB Output is correct
14 Correct 93 ms 80512 KB Output is correct
15 Correct 112 ms 90196 KB Output is correct
16 Correct 96 ms 90500 KB Output is correct
17 Correct 113 ms 86332 KB Output is correct
18 Correct 263 ms 134404 KB Output is correct
19 Correct 121 ms 88648 KB Output is correct
20 Correct 39 ms 62936 KB Output is correct
21 Correct 30 ms 62928 KB Output is correct
22 Correct 30 ms 62952 KB Output is correct
23 Correct 35 ms 62912 KB Output is correct
24 Correct 30 ms 63020 KB Output is correct
25 Correct 30 ms 62936 KB Output is correct
26 Correct 30 ms 63020 KB Output is correct
27 Correct 33 ms 62952 KB Output is correct
28 Correct 30 ms 63024 KB Output is correct
29 Correct 30 ms 62932 KB Output is correct
30 Correct 29 ms 62964 KB Output is correct
31 Correct 30 ms 63180 KB Output is correct
32 Correct 30 ms 63100 KB Output is correct
33 Correct 30 ms 63216 KB Output is correct
34 Correct 30 ms 63188 KB Output is correct
35 Correct 31 ms 63172 KB Output is correct
36 Correct 30 ms 63196 KB Output is correct
37 Correct 30 ms 63188 KB Output is correct
38 Correct 30 ms 63196 KB Output is correct
39 Correct 35 ms 63128 KB Output is correct
40 Correct 30 ms 63108 KB Output is correct
41 Correct 30 ms 63188 KB Output is correct
42 Correct 30 ms 63296 KB Output is correct
43 Correct 30 ms 63320 KB Output is correct
44 Correct 28 ms 62960 KB Output is correct
45 Correct 40 ms 67044 KB Output is correct
46 Correct 40 ms 66756 KB Output is correct
47 Correct 55 ms 69740 KB Output is correct
48 Correct 53 ms 70724 KB Output is correct
49 Correct 59 ms 70920 KB Output is correct
50 Correct 41 ms 66440 KB Output is correct
51 Correct 40 ms 66124 KB Output is correct
52 Correct 60 ms 74984 KB Output is correct
53 Correct 37 ms 66528 KB Output is correct
54 Correct 30 ms 62948 KB Output is correct
55 Correct 28 ms 62932 KB Output is correct
56 Correct 29 ms 62928 KB Output is correct
57 Correct 30 ms 63060 KB Output is correct
58 Correct 29 ms 62948 KB Output is correct
59 Correct 29 ms 62932 KB Output is correct
60 Correct 29 ms 62984 KB Output is correct
61 Correct 29 ms 62996 KB Output is correct
62 Correct 29 ms 63020 KB Output is correct
63 Correct 30 ms 62968 KB Output is correct
64 Correct 29 ms 62924 KB Output is correct
65 Correct 33 ms 63252 KB Output is correct
66 Correct 30 ms 63096 KB Output is correct
67 Correct 31 ms 63284 KB Output is correct
68 Correct 30 ms 63176 KB Output is correct
69 Correct 30 ms 63188 KB Output is correct
70 Correct 30 ms 63188 KB Output is correct
71 Correct 34 ms 63212 KB Output is correct
72 Correct 30 ms 63112 KB Output is correct
73 Correct 31 ms 63180 KB Output is correct
74 Correct 30 ms 63084 KB Output is correct
75 Correct 30 ms 63080 KB Output is correct
76 Correct 30 ms 63288 KB Output is correct
77 Correct 31 ms 63264 KB Output is correct
78 Correct 29 ms 62932 KB Output is correct
79 Correct 43 ms 67128 KB Output is correct
80 Correct 45 ms 66632 KB Output is correct
81 Correct 54 ms 69672 KB Output is correct
82 Correct 54 ms 70796 KB Output is correct
83 Correct 56 ms 70920 KB Output is correct
84 Correct 41 ms 66396 KB Output is correct
85 Correct 41 ms 66128 KB Output is correct
86 Correct 60 ms 74944 KB Output is correct
87 Correct 37 ms 66536 KB Output is correct
88 Correct 45 ms 66992 KB Output is correct
89 Correct 51 ms 67396 KB Output is correct
90 Correct 47 ms 67012 KB Output is correct
91 Correct 63 ms 68544 KB Output is correct
92 Correct 50 ms 67404 KB Output is correct
93 Correct 61 ms 71224 KB Output is correct
94 Correct 52 ms 68228 KB Output is correct
95 Correct 45 ms 66024 KB Output is correct
96 Correct 67 ms 72128 KB Output is correct
97 Correct 60 ms 74664 KB Output is correct
98 Correct 62 ms 70992 KB Output is correct
99 Correct 29 ms 62992 KB Output is correct
100 Correct 29 ms 62996 KB Output is correct
101 Correct 31 ms 62992 KB Output is correct
102 Correct 31 ms 63028 KB Output is correct
103 Correct 29 ms 62932 KB Output is correct
104 Correct 33 ms 63004 KB Output is correct
105 Correct 30 ms 63012 KB Output is correct
106 Correct 28 ms 62904 KB Output is correct
107 Correct 30 ms 63000 KB Output is correct
108 Correct 30 ms 63016 KB Output is correct
109 Correct 30 ms 62936 KB Output is correct
110 Correct 29 ms 62932 KB Output is correct
111 Correct 99 ms 82956 KB Output is correct
112 Correct 94 ms 80400 KB Output is correct
113 Correct 108 ms 90096 KB Output is correct
114 Correct 95 ms 90512 KB Output is correct
115 Correct 114 ms 86312 KB Output is correct
116 Correct 262 ms 134596 KB Output is correct
117 Correct 117 ms 88596 KB Output is correct
118 Correct 30 ms 63284 KB Output is correct
119 Correct 31 ms 63128 KB Output is correct
120 Correct 31 ms 63228 KB Output is correct
121 Correct 30 ms 63172 KB Output is correct
122 Correct 30 ms 63228 KB Output is correct
123 Correct 29 ms 63188 KB Output is correct
124 Correct 32 ms 63252 KB Output is correct
125 Correct 31 ms 63116 KB Output is correct
126 Correct 30 ms 63188 KB Output is correct
127 Correct 29 ms 63192 KB Output is correct
128 Correct 31 ms 63176 KB Output is correct
129 Correct 32 ms 63244 KB Output is correct
130 Correct 30 ms 63220 KB Output is correct
131 Correct 30 ms 62976 KB Output is correct
132 Correct 42 ms 67112 KB Output is correct
133 Correct 40 ms 66764 KB Output is correct
134 Correct 59 ms 69780 KB Output is correct
135 Correct 57 ms 70724 KB Output is correct
136 Correct 57 ms 70868 KB Output is correct
137 Correct 41 ms 66440 KB Output is correct
138 Correct 40 ms 66124 KB Output is correct
139 Correct 60 ms 74952 KB Output is correct
140 Correct 39 ms 66468 KB Output is correct
141 Correct 45 ms 67012 KB Output is correct
142 Correct 50 ms 67396 KB Output is correct
143 Correct 47 ms 66996 KB Output is correct
144 Correct 55 ms 68548 KB Output is correct
145 Correct 50 ms 67508 KB Output is correct
146 Correct 61 ms 71268 KB Output is correct
147 Correct 53 ms 68252 KB Output is correct
148 Correct 45 ms 65976 KB Output is correct
149 Correct 66 ms 72076 KB Output is correct
150 Correct 59 ms 74696 KB Output is correct
151 Correct 62 ms 70988 KB Output is correct
152 Correct 320 ms 161308 KB Output is correct
153 Correct 359 ms 193920 KB Output is correct
154 Correct 320 ms 168152 KB Output is correct
155 Correct 672 ms 224252 KB Output is correct
156 Correct 603 ms 198716 KB Output is correct
157 Correct 322 ms 158636 KB Output is correct
158 Correct 480 ms 191692 KB Output is correct
159 Correct 1139 ms 308804 KB Output is correct
160 Correct 1090 ms 289484 KB Output is correct
161 Correct 424 ms 158428 KB Output is correct
162 Correct 361 ms 160292 KB Output is correct