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답안 #985552

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
985552 2024-05-18T07:58:10 Z maomao90 Escape Route 2 (JOI24_escape2) C++17
100 / 100
 1136 ms 856572 KB 
// Hallelujah, praise the one who set me free
// Hallelujah, death has lost its grip on me
// You have broken every chain, There's salvation in your name
// Jesus Christ, my living hope
#include <bits/stdc++.h> 
using namespace std;

#define REP(i, s, e) for (int i = (s); i < (e); i++)
#define RREP(i, s, e) for (int i = (s); i >= (e); i--)
template <class T>
inline bool mnto(T& a, T b) {return a > b ? a = b, 1 : 0;}
template <class T>
inline bool mxto(T& a, T b) {return a < b ? a = b, 1: 0;}

typedef unsigned long long ull;
typedef long long ll;
typedef long double ld;
#define FI first
#define SE second
typedef pair<int, int> ii;
typedef pair<ll, ll> pll;
typedef tuple<int, int, int> iii;
typedef tuple<ll, int, int> lii;
#define ALL(_a) _a.begin(), _a.end()
#define SZ(_a) (int) _a.size()
#define pb push_back
typedef vector<int> vi;
typedef vector<ll> vll;
typedef vector<ii> vii;
typedef vector<iii> viii;

#ifndef DEBUG
#define cerr if (0) cerr
#endif

const int INF = 1000000005;
const ll LINF = 1000000000000000005ll;
const int MAXN = 100005;
const int MAXQ = 300005;
const int BLK = 183;

int n, t;
int m[MAXN];
vii ba[MAXN];
vector<vi> adj[MAXN];
vector<vector<lii>> big[MAXN];
int q;
vii mpl[MAXN];
ll ans[MAXQ];
ll dp[2][MAXN];

vi p[MAXN];
vll d[MAXN];
vi stk;
void dfs(int i, int j) {
    cerr << i << ' ' << j << ": " << d[i][j] << '\n';
    stk.pb(j);
    if (m[i] <= BLK) {
        for (auto [r, id] : mpl[i]) {
            int anc = stk[n - r];
            mnto(ans[id], d[i][j] - d[r - 1][anc] + ba[i][j].FI - ba[i][j].SE);
        }
    }
    for (auto [w, r, id] : big[i][j]) {
        int anc = stk[n - r];
        mnto(ans[id], d[i][j] - d[r - 1][anc] + w);
    }
    for (int k : adj[i][j]) {
        int w = ba[i][j].FI - ba[i - 1][k].FI;
        if (ba[i - 1][k].FI > ba[i][j].SE) {
            w += t;
        }
        d[i - 1][k] = d[i][j] + w;
        dfs(i - 1, k);
    }
    stk.pop_back();
}

int main() {
#ifndef DEBUG
    ios::sync_with_stdio(0), cin.tie(0);
#endif
    cin >> n >> t;
    REP (i, 1, n) {
        cin >> m[i];
        ba[i].resize(m[i]);
        adj[i].resize(m[i]);
        p[i].resize(m[i]);
        d[i].resize(m[i]);
        big[i].resize(m[i]);
        REP (j, 0, m[i]) {
            cin >> ba[i][j].SE >> ba[i][j].FI;
        }
        sort(ALL(ba[i]));
        int ptr = 0;
        REP (j, 0, m[i]) {
            while (ptr < SZ(ba[i - 1]) && ba[i - 1][ptr].FI <= ba[i][j].SE) {
                p[i - 1][ptr] = j;
                adj[i][j].pb(ptr++);
            }
        }
        while (ptr < SZ(ba[i - 1])) {
            p[i - 1][ptr] = 0;
            adj[i][0].pb(ptr++);
        }
    }
    cin >> q;
    REP (i, 0, q) {
        int l, r; cin >> l >> r;
        mpl[l].pb({r, i});
        ans[i] = LINF;
    }
    REP (i, 1, n) {
        sort(ALL(mpl[i]));
    }
    REP (i, 1, n) {
        if (m[i] <= BLK) {
            continue;
        }
        REP (j, 0, m[i]) {
            dp[i & 1][j] = ba[i][j].FI - ba[i][j].SE;
        }
        int u = i;
        int ptr = 0;
        while (m[u] > BLK) {
            ll res = LINF;
            REP (j, 0, m[u]) {
                mnto(res, dp[u & 1][j]);
            }
            while (ptr < SZ(mpl[i]) && mpl[i][ptr].FI - 1 == u) {
                ans[mpl[i][ptr++].SE] = res;
            }
            if (ptr == SZ(mpl[i])) {
                break;
            }
            REP (j, 0, m[u + 1]) {
                dp[u & 1 ^ 1][j] = LINF;
            }
            REP (j, 0, m[u]) {
                int pj = p[u][j];
                int w = ba[u + 1][pj].FI - ba[u][j].FI;
                if (ba[u][j].FI > ba[u + 1][pj].SE) {
                    w += t;
                }
                mnto(dp[u & 1 ^ 1][pj], dp[u & 1][j] + w);
            }
            u++;
        }
        while (ptr < SZ(mpl[i])) {
            auto [r, id] = mpl[i][ptr++];
            REP (j, 0, m[u]) {
                big[u][j].pb({dp[u & 1][j], r, id});
            }
        }
    }
    REP (j, 0, m[n - 1]) {
        dfs(n - 1, j);
    }
    REP (i, 0, q) {
        cout << ans[i] << '\n';
    }
    return 0;
}

Compilation message

Main.cpp: In function 'int main()':
Main.cpp:138:22: warning: suggest parentheses around arithmetic in operand of '^' [-Wparentheses]
  138 |                 dp[u & 1 ^ 1][j] = LINF;
      |                    ~~^~~
Main.cpp:146:27: warning: suggest parentheses around arithmetic in operand of '^' [-Wparentheses]
  146 |                 mnto(dp[u & 1 ^ 1][pj], dp[u & 1][j] + w);
      |                         ~~^~~

Subtask #1
6.0 / 6.0

# 결과 실행 시간 메모리 Grader output
1 Correct 4 ms 16220 KB Output is correct
2 Correct 55 ms 23960 KB Output is correct
3 Correct 56 ms 24972 KB Output is correct
4 Correct 70 ms 26704 KB Output is correct
5 Correct 56 ms 25088 KB Output is correct
6 Correct 70 ms 26956 KB Output is correct
7 Correct 71 ms 27328 KB Output is correct
8 Correct 55 ms 25092 KB Output is correct
9 Correct 72 ms 26960 KB Output is correct

Subtask #2
8.0 / 8.0

# 결과 실행 시간 메모리 Grader output
1 Correct 4 ms 16220 KB Output is correct
2 Correct 55 ms 23960 KB Output is correct
3 Correct 56 ms 24972 KB Output is correct
4 Correct 70 ms 26704 KB Output is correct
5 Correct 56 ms 25088 KB Output is correct
6 Correct 70 ms 26956 KB Output is correct
7 Correct 71 ms 27328 KB Output is correct
8 Correct 55 ms 25092 KB Output is correct
9 Correct 72 ms 26960 KB Output is correct
10 Correct 4 ms 16220 KB Output is correct
11 Correct 75 ms 26860 KB Output is correct
12 Correct 76 ms 27192 KB Output is correct
13 Correct 83 ms 26304 KB Output is correct
14 Correct 77 ms 25940 KB Output is correct
15 Correct 72 ms 27728 KB Output is correct
16 Correct 56 ms 25788 KB Output is correct
17 Correct 71 ms 27984 KB Output is correct
18 Correct 73 ms 26708 KB Output is correct
19 Correct 69 ms 27988 KB Output is correct
20 Correct 74 ms 26404 KB Output is correct

Subtask #3
17.0 / 17.0

# 결과 실행 시간 메모리 Grader output
1 Correct 4 ms 16220 KB Output is correct
2 Correct 55 ms 23960 KB Output is correct
3 Correct 56 ms 24972 KB Output is correct
4 Correct 70 ms 26704 KB Output is correct
5 Correct 56 ms 25088 KB Output is correct
6 Correct 70 ms 26956 KB Output is correct
7 Correct 71 ms 27328 KB Output is correct
8 Correct 55 ms 25092 KB Output is correct
9 Correct 72 ms 26960 KB Output is correct
10 Correct 112 ms 49608 KB Output is correct
11 Correct 177 ms 58568 KB Output is correct
12 Correct 156 ms 57044 KB Output is correct
13 Correct 143 ms 56636 KB Output is correct
14 Correct 154 ms 59852 KB Output is correct
15 Correct 153 ms 59084 KB Output is correct
16 Correct 114 ms 49612 KB Output is correct
17 Correct 159 ms 58648 KB Output is correct
18 Correct 88 ms 49268 KB Output is correct
19 Correct 91 ms 47360 KB Output is correct
20 Correct 97 ms 47560 KB Output is correct
21 Correct 96 ms 47576 KB Output is correct

Subtask #4
23.0 / 23.0

# 결과 실행 시간 메모리 Grader output
1 Correct 4 ms 16220 KB Output is correct
2 Correct 55 ms 23960 KB Output is correct
3 Correct 56 ms 24972 KB Output is correct
4 Correct 70 ms 26704 KB Output is correct
5 Correct 56 ms 25088 KB Output is correct
6 Correct 70 ms 26956 KB Output is correct
7 Correct 71 ms 27328 KB Output is correct
8 Correct 55 ms 25092 KB Output is correct
9 Correct 72 ms 26960 KB Output is correct
10 Correct 4 ms 16220 KB Output is correct
11 Correct 75 ms 26860 KB Output is correct
12 Correct 76 ms 27192 KB Output is correct
13 Correct 83 ms 26304 KB Output is correct
14 Correct 77 ms 25940 KB Output is correct
15 Correct 72 ms 27728 KB Output is correct
16 Correct 56 ms 25788 KB Output is correct
17 Correct 71 ms 27984 KB Output is correct
18 Correct 73 ms 26708 KB Output is correct
19 Correct 69 ms 27988 KB Output is correct
20 Correct 74 ms 26404 KB Output is correct
21 Correct 112 ms 49608 KB Output is correct
22 Correct 177 ms 58568 KB Output is correct
23 Correct 156 ms 57044 KB Output is correct
24 Correct 143 ms 56636 KB Output is correct
25 Correct 154 ms 59852 KB Output is correct
26 Correct 153 ms 59084 KB Output is correct
27 Correct 114 ms 49612 KB Output is correct
28 Correct 159 ms 58648 KB Output is correct
29 Correct 88 ms 49268 KB Output is correct
30 Correct 91 ms 47360 KB Output is correct
31 Correct 97 ms 47560 KB Output is correct
32 Correct 96 ms 47576 KB Output is correct
33 Correct 134 ms 39504 KB Output is correct
34 Correct 150 ms 39288 KB Output is correct
35 Correct 130 ms 39248 KB Output is correct
36 Correct 129 ms 38596 KB Output is correct
37 Correct 134 ms 39500 KB Output is correct
38 Correct 112 ms 44316 KB Output is correct
39 Correct 149 ms 50560 KB Output is correct
40 Correct 109 ms 37712 KB Output is correct
41 Correct 116 ms 42036 KB Output is correct
42 Correct 159 ms 49616 KB Output is correct
43 Correct 113 ms 40292 KB Output is correct
44 Correct 128 ms 42676 KB Output is correct
45 Correct 80 ms 40920 KB Output is correct
46 Correct 66 ms 33876 KB Output is correct

Subtask #5
36.0 / 36.0

# 결과 실행 시간 메모리 Grader output
1 Correct 4 ms 16216 KB Output is correct
2 Correct 4 ms 16220 KB Output is correct
3 Correct 88 ms 30036 KB Output is correct
4 Correct 86 ms 30036 KB Output is correct
5 Correct 98 ms 29432 KB Output is correct
6 Correct 87 ms 30032 KB Output is correct
7 Correct 87 ms 30292 KB Output is correct
8 Correct 87 ms 28240 KB Output is correct
9 Correct 51 ms 29672 KB Output is correct
10 Correct 41 ms 25804 KB Output is correct
11 Correct 86 ms 50128 KB Output is correct
12 Correct 82 ms 42460 KB Output is correct
13 Correct 67 ms 34712 KB Output is correct
14 Correct 62 ms 32968 KB Output is correct
15 Correct 57 ms 32848 KB Output is correct
16 Correct 57 ms 32044 KB Output is correct
17 Correct 59 ms 32592 KB Output is correct
18 Correct 53 ms 28696 KB Output is correct
19 Correct 151 ms 139604 KB Output is correct
20 Correct 97 ms 43740 KB Output is correct
21 Correct 97 ms 42032 KB Output is correct
22 Correct 245 ms 224512 KB Output is correct
23 Correct 158 ms 151636 KB Output is correct
24 Correct 66 ms 36872 KB Output is correct
25 Correct 66 ms 38424 KB Output is correct
26 Correct 69 ms 39704 KB Output is correct
27 Correct 82 ms 49872 KB Output is correct
28 Correct 87 ms 50636 KB Output is correct
29 Correct 98 ms 51044 KB Output is correct
30 Correct 51 ms 28444 KB Output is correct
31 Correct 68 ms 42412 KB Output is correct
32 Correct 58 ms 30292 KB Output is correct
33 Correct 59 ms 32080 KB Output is correct
34 Correct 126 ms 127824 KB Output is correct

Subtask #6
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 4 ms 16220 KB Output is correct
2 Correct 55 ms 23960 KB Output is correct
3 Correct 56 ms 24972 KB Output is correct
4 Correct 70 ms 26704 KB Output is correct
5 Correct 56 ms 25088 KB Output is correct
6 Correct 70 ms 26956 KB Output is correct
7 Correct 71 ms 27328 KB Output is correct
8 Correct 55 ms 25092 KB Output is correct
9 Correct 72 ms 26960 KB Output is correct
10 Correct 4 ms 16220 KB Output is correct
11 Correct 75 ms 26860 KB Output is correct
12 Correct 76 ms 27192 KB Output is correct
13 Correct 83 ms 26304 KB Output is correct
14 Correct 77 ms 25940 KB Output is correct
15 Correct 72 ms 27728 KB Output is correct
16 Correct 56 ms 25788 KB Output is correct
17 Correct 71 ms 27984 KB Output is correct
18 Correct 73 ms 26708 KB Output is correct
19 Correct 69 ms 27988 KB Output is correct
20 Correct 74 ms 26404 KB Output is correct
21 Correct 112 ms 49608 KB Output is correct
22 Correct 177 ms 58568 KB Output is correct
23 Correct 156 ms 57044 KB Output is correct
24 Correct 143 ms 56636 KB Output is correct
25 Correct 154 ms 59852 KB Output is correct
26 Correct 153 ms 59084 KB Output is correct
27 Correct 114 ms 49612 KB Output is correct
28 Correct 159 ms 58648 KB Output is correct
29 Correct 88 ms 49268 KB Output is correct
30 Correct 91 ms 47360 KB Output is correct
31 Correct 97 ms 47560 KB Output is correct
32 Correct 96 ms 47576 KB Output is correct
33 Correct 134 ms 39504 KB Output is correct
34 Correct 150 ms 39288 KB Output is correct
35 Correct 130 ms 39248 KB Output is correct
36 Correct 129 ms 38596 KB Output is correct
37 Correct 134 ms 39500 KB Output is correct
38 Correct 112 ms 44316 KB Output is correct
39 Correct 149 ms 50560 KB Output is correct
40 Correct 109 ms 37712 KB Output is correct
41 Correct 116 ms 42036 KB Output is correct
42 Correct 159 ms 49616 KB Output is correct
43 Correct 113 ms 40292 KB Output is correct
44 Correct 128 ms 42676 KB Output is correct
45 Correct 80 ms 40920 KB Output is correct
46 Correct 66 ms 33876 KB Output is correct
47 Correct 4 ms 16216 KB Output is correct
48 Correct 4 ms 16220 KB Output is correct
49 Correct 88 ms 30036 KB Output is correct
50 Correct 86 ms 30036 KB Output is correct
51 Correct 98 ms 29432 KB Output is correct
52 Correct 87 ms 30032 KB Output is correct
53 Correct 87 ms 30292 KB Output is correct
54 Correct 87 ms 28240 KB Output is correct
55 Correct 51 ms 29672 KB Output is correct
56 Correct 41 ms 25804 KB Output is correct
57 Correct 86 ms 50128 KB Output is correct
58 Correct 82 ms 42460 KB Output is correct
59 Correct 67 ms 34712 KB Output is correct
60 Correct 62 ms 32968 KB Output is correct
61 Correct 57 ms 32848 KB Output is correct
62 Correct 57 ms 32044 KB Output is correct
63 Correct 59 ms 32592 KB Output is correct
64 Correct 53 ms 28696 KB Output is correct
65 Correct 151 ms 139604 KB Output is correct
66 Correct 97 ms 43740 KB Output is correct
67 Correct 97 ms 42032 KB Output is correct
68 Correct 245 ms 224512 KB Output is correct
69 Correct 158 ms 151636 KB Output is correct
70 Correct 66 ms 36872 KB Output is correct
71 Correct 66 ms 38424 KB Output is correct
72 Correct 69 ms 39704 KB Output is correct
73 Correct 82 ms 49872 KB Output is correct
74 Correct 87 ms 50636 KB Output is correct
75 Correct 98 ms 51044 KB Output is correct
76 Correct 51 ms 28444 KB Output is correct
77 Correct 68 ms 42412 KB Output is correct
78 Correct 58 ms 30292 KB Output is correct
79 Correct 59 ms 32080 KB Output is correct
80 Correct 126 ms 127824 KB Output is correct
81 Correct 195 ms 34996 KB Output is correct
82 Correct 188 ms 36436 KB Output is correct
83 Correct 203 ms 38736 KB Output is correct
84 Correct 180 ms 37712 KB Output is correct
85 Correct 182 ms 34768 KB Output is correct
86 Correct 192 ms 33404 KB Output is correct
87 Correct 97 ms 38996 KB Output is correct
88 Correct 237 ms 39348 KB Output is correct
89 Correct 259 ms 37896 KB Output is correct
90 Correct 205 ms 34080 KB Output is correct
91 Correct 86 ms 32580 KB Output is correct
92 Correct 134 ms 37640 KB Output is correct
93 Correct 125 ms 39616 KB Output is correct
94 Correct 126 ms 42956 KB Output is correct
95 Correct 125 ms 40860 KB Output is correct
96 Correct 133 ms 38344 KB Output is correct
97 Correct 432 ms 353076 KB Output is correct
98 Correct 263 ms 48480 KB Output is correct
99 Correct 223 ms 48112 KB Output is correct
100 Correct 1136 ms 856572 KB Output is correct
101 Correct 724 ms 609268 KB Output is correct
102 Correct 140 ms 54424 KB Output is correct
103 Correct 132 ms 46424 KB Output is correct
104 Correct 145 ms 43836 KB Output is correct
105 Correct 113 ms 33916 KB Output is correct
106 Correct 139 ms 61196 KB Output is correct
107 Correct 161 ms 34048 KB Output is correct
108 Correct 140 ms 37168 KB Output is correct
109 Correct 357 ms 320908 KB Output is correct