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답안 #1108724

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
1108724 2024-11-04T20:44:23 Z vladilius Escape Route 2 (JOI24_escape2) C++17
100 / 100
 2341 ms 191560 KB 
#include <bits/stdc++.h>
using namespace std;
using ll = long long;
using pii = pair<int, int>;
#define pb push_back
#define ff first
#define ss second
const ll inf = numeric_limits<ll> :: max();
const int M = 1e5;

int main(){
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    cout.tie(0);
    
    int n, D; cin>>n>>D;
    vector<int> x(n);
    vector<pii> t[n];
    for (int i = 1; i < n; i++){
        cin>>x[i];
        for (int j = 0; j < x[i]; j++){
            int a, b; cin>>a>>b;
            t[i].pb({a, b});
        }
    }
    
    for (int i = 1; i < n; i++){
        sort(t[i].begin(), t[i].end());
        vector<pii> nw;
        for (int j = 0; j < x[i]; j++){
            while (!nw.empty() && nw.back().ss >= t[i][j].ss){
                nw.pop_back();
            }
            if (nw.empty() || nw.back().ff != t[i][j].ff){
                nw.pb(t[i][j]);
            }
        }
        
        t[i] = nw;
        x[i] = (int) t[i].size();
    }
    
    vector<int> p(n);
    for (int i = 1; i < n; i++){
        p[i] = p[i - 1] + x[i];
    }
    int S = p.back();
    vector<int> g(S);
    vector<bool> e(S);
    for (int i = 1; i + 1 < n; i++){
        int k = x[i + 1] - 1, mn = 0;
        for (int j = x[i] - 1; j >= 0; j--){
            while (k >= 0 && t[i + 1][k].ff >= t[i][j].ss){
                mn = k--;
            }
            g[p[i - 1] + j] = p[i] + mn;
            e[p[i - 1] + j] = (t[i][j].ss > t[i + 1][mn].ff);
        }
    }
    
    const int lg = log2(S);
    vector<vector<pii>> sp(S, vector<pii>(lg + 1));
    for (int i = 0; i < S; i++) sp[i][0] = {g[i], e[i]};
    for (int j = 1; j <= lg; j++){
        for (int i = 0; i + (1 << j) <= S; i++){
            sp[i][j] = {sp[sp[i][j - 1].ff][j - 1].ff, sp[i][j - 1].ss + sp[sp[i][j - 1].ff][j - 1].ss};
        }
    }
    
    auto get = [&](int l, int r){
        ll out = inf;
        for (int i = 0; i < x[l]; i++){
            int tt = r - l - 1, f = p[l - 1] + i, cc = 0;
            for (int j = lg; j >= 0; j--){
                int k = (1 << j);
                if (tt >= k){
                    cc += sp[f][j].ss;
                    f = sp[f][j].ff;
                    tt -= k;
                }
            }
            out = min(out, 1LL * D * cc + (t[r - 1][f - p[r - 2]].ss - t[l][i].ff));
        }
        return out;
    };
    
    const int A = 500;
    vector<int> all;
    pair<int, ll> st[M], nw[M];
    ll out[M / A + 5][n + 1];
    int s1 = 0, s2 = 0, cc = 0;
    ll mn;
    for (int i = 1; i < n; i++){
        if (x[i] <= A) continue;
        all.pb(i);
        s1 = s2 = 0;
        for (int j = 0; j < x[i]; j++){
            st[s1++] = {p[i - 1] + j, t[i][j].ss - t[i][j].ff};
        }
        for (int j = i + 1; j <= n; j++){
            mn = inf;
            for (int k = 0; k < s1; k++){
                mn = min(mn, st[k].ss);
            }
            out[cc][j] = mn;
            if (j == n) break;
            for (int k = 0; k < s1; k++){
                auto &[x, y] = st[k];
                y += D * e[x] + (t[j][g[x] - p[j - 1]].ss - t[j - 1][x - p[j - 2]].ss);
                x = g[x];
            }
            s2 = 0;
            int k = 0;
            while (k < s1){
                int h = k; mn = inf;
                while (h < s1 && st[k].ff == st[h].ff){
                    mn = min(mn, st[h].ss);
                    h++;
                }
                nw[s2++] = {st[k].ff, mn};
                k = h;
            }
            s1 = s2;
            for (int i = 0; i < s1; i++){
                st[i] = nw[i];
            }
        }
        cc++;
    }
    
    vector<int> :: iterator it;
    int q; cin>>q;
    for (int i = 1; i <= q; i++){
        int l, r; cin>>l>>r;
        if (x[l] <= A){
            cout<<get(l, r)<<"\n";
        }
        else {
            it = lower_bound(all.begin(), all.end(), l);
            int j = (int) (it - all.begin());
            cout<<out[j][r]<<"\n";
        }
    }
}

Subtask #1
6.0 / 6.0

# 결과 실행 시간 메모리 Grader output
1 Correct 3 ms 3408 KB Output is correct
2 Correct 41 ms 6396 KB Output is correct
3 Correct 57 ms 8940 KB Output is correct
4 Correct 85 ms 11080 KB Output is correct
5 Correct 67 ms 10120 KB Output is correct
6 Correct 82 ms 11080 KB Output is correct
7 Correct 83 ms 11080 KB Output is correct
8 Correct 63 ms 9032 KB Output is correct
9 Correct 86 ms 11080 KB Output is correct

Subtask #2
8.0 / 8.0

# 결과 실행 시간 메모리 Grader output
1 Correct 3 ms 3408 KB Output is correct
2 Correct 41 ms 6396 KB Output is correct
3 Correct 57 ms 8940 KB Output is correct
4 Correct 85 ms 11080 KB Output is correct
5 Correct 67 ms 10120 KB Output is correct
6 Correct 82 ms 11080 KB Output is correct
7 Correct 83 ms 11080 KB Output is correct
8 Correct 63 ms 9032 KB Output is correct
9 Correct 86 ms 11080 KB Output is correct
10 Correct 4 ms 3408 KB Output is correct
11 Correct 88 ms 8008 KB Output is correct
12 Correct 90 ms 7752 KB Output is correct
13 Correct 92 ms 7852 KB Output is correct
14 Correct 84 ms 7860 KB Output is correct
15 Correct 83 ms 8520 KB Output is correct
16 Correct 48 ms 6428 KB Output is correct
17 Correct 84 ms 9804 KB Output is correct
18 Correct 78 ms 8532 KB Output is correct
19 Correct 74 ms 9800 KB Output is correct
20 Correct 73 ms 8520 KB Output is correct

Subtask #3
17.0 / 17.0

# 결과 실행 시간 메모리 Grader output
1 Correct 3 ms 3408 KB Output is correct
2 Correct 41 ms 6396 KB Output is correct
3 Correct 57 ms 8940 KB Output is correct
4 Correct 85 ms 11080 KB Output is correct
5 Correct 67 ms 10120 KB Output is correct
6 Correct 82 ms 11080 KB Output is correct
7 Correct 83 ms 11080 KB Output is correct
8 Correct 63 ms 9032 KB Output is correct
9 Correct 86 ms 11080 KB Output is correct
10 Correct 333 ms 151476 KB Output is correct
11 Correct 426 ms 191420 KB Output is correct
12 Correct 439 ms 191560 KB Output is correct
13 Correct 349 ms 190428 KB Output is correct
14 Correct 403 ms 191560 KB Output is correct
15 Correct 394 ms 191560 KB Output is correct
16 Correct 276 ms 151400 KB Output is correct
17 Correct 370 ms 191560 KB Output is correct
18 Correct 274 ms 170056 KB Output is correct
19 Correct 271 ms 169800 KB Output is correct
20 Correct 238 ms 170056 KB Output is correct
21 Correct 232 ms 170088 KB Output is correct

Subtask #4
23.0 / 23.0

# 결과 실행 시간 메모리 Grader output
1 Correct 3 ms 3408 KB Output is correct
2 Correct 41 ms 6396 KB Output is correct
3 Correct 57 ms 8940 KB Output is correct
4 Correct 85 ms 11080 KB Output is correct
5 Correct 67 ms 10120 KB Output is correct
6 Correct 82 ms 11080 KB Output is correct
7 Correct 83 ms 11080 KB Output is correct
8 Correct 63 ms 9032 KB Output is correct
9 Correct 86 ms 11080 KB Output is correct
10 Correct 4 ms 3408 KB Output is correct
11 Correct 88 ms 8008 KB Output is correct
12 Correct 90 ms 7752 KB Output is correct
13 Correct 92 ms 7852 KB Output is correct
14 Correct 84 ms 7860 KB Output is correct
15 Correct 83 ms 8520 KB Output is correct
16 Correct 48 ms 6428 KB Output is correct
17 Correct 84 ms 9804 KB Output is correct
18 Correct 78 ms 8532 KB Output is correct
19 Correct 74 ms 9800 KB Output is correct
20 Correct 73 ms 8520 KB Output is correct
21 Correct 333 ms 151476 KB Output is correct
22 Correct 426 ms 191420 KB Output is correct
23 Correct 439 ms 191560 KB Output is correct
24 Correct 349 ms 190428 KB Output is correct
25 Correct 403 ms 191560 KB Output is correct
26 Correct 394 ms 191560 KB Output is correct
27 Correct 276 ms 151400 KB Output is correct
28 Correct 370 ms 191560 KB Output is correct
29 Correct 274 ms 170056 KB Output is correct
30 Correct 271 ms 169800 KB Output is correct
31 Correct 238 ms 170056 KB Output is correct
32 Correct 232 ms 170088 KB Output is correct
33 Correct 280 ms 58720 KB Output is correct
34 Correct 305 ms 58428 KB Output is correct
35 Correct 287 ms 56648 KB Output is correct
36 Correct 312 ms 56500 KB Output is correct
37 Correct 294 ms 73552 KB Output is correct
38 Correct 314 ms 107340 KB Output is correct
39 Correct 380 ms 135868 KB Output is correct
40 Correct 265 ms 56592 KB Output is correct
41 Correct 257 ms 100936 KB Output is correct
42 Correct 325 ms 133704 KB Output is correct
43 Correct 232 ms 73800 KB Output is correct
44 Correct 281 ms 75852 KB Output is correct
45 Correct 207 ms 120228 KB Output is correct
46 Correct 147 ms 70472 KB Output is correct

Subtask #5
36.0 / 36.0

# 결과 실행 시간 메모리 Grader output
1 Correct 3 ms 3408 KB Output is correct
2 Correct 4 ms 3408 KB Output is correct
3 Correct 783 ms 21068 KB Output is correct
4 Correct 738 ms 21124 KB Output is correct
5 Correct 806 ms 21288 KB Output is correct
6 Correct 823 ms 21176 KB Output is correct
7 Correct 773 ms 21028 KB Output is correct
8 Correct 332 ms 13684 KB Output is correct
9 Correct 56 ms 21512 KB Output is correct
10 Correct 46 ms 12260 KB Output is correct
11 Correct 268 ms 170056 KB Output is correct
12 Correct 202 ms 120416 KB Output is correct
13 Correct 178 ms 70500 KB Output is correct
14 Correct 106 ms 52040 KB Output is correct
15 Correct 111 ms 51976 KB Output is correct
16 Correct 111 ms 52552 KB Output is correct
17 Correct 118 ms 52004 KB Output is correct
18 Correct 114 ms 22984 KB Output is correct
19 Correct 516 ms 21496 KB Output is correct
20 Correct 573 ms 129608 KB Output is correct
21 Correct 503 ms 129448 KB Output is correct
22 Correct 701 ms 75080 KB Output is correct
23 Correct 523 ms 74968 KB Output is correct
24 Correct 110 ms 75036 KB Output is correct
25 Correct 99 ms 74876 KB Output is correct
26 Correct 124 ms 75084 KB Output is correct
27 Correct 219 ms 169860 KB Output is correct
28 Correct 234 ms 169928 KB Output is correct
29 Correct 242 ms 170036 KB Output is correct
30 Correct 64 ms 16228 KB Output is correct
31 Correct 117 ms 5384 KB Output is correct
32 Correct 76 ms 12360 KB Output is correct
33 Correct 56 ms 5828 KB Output is correct
34 Correct 85 ms 7752 KB Output is correct

Subtask #6
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 3 ms 3408 KB Output is correct
2 Correct 41 ms 6396 KB Output is correct
3 Correct 57 ms 8940 KB Output is correct
4 Correct 85 ms 11080 KB Output is correct
5 Correct 67 ms 10120 KB Output is correct
6 Correct 82 ms 11080 KB Output is correct
7 Correct 83 ms 11080 KB Output is correct
8 Correct 63 ms 9032 KB Output is correct
9 Correct 86 ms 11080 KB Output is correct
10 Correct 4 ms 3408 KB Output is correct
11 Correct 88 ms 8008 KB Output is correct
12 Correct 90 ms 7752 KB Output is correct
13 Correct 92 ms 7852 KB Output is correct
14 Correct 84 ms 7860 KB Output is correct
15 Correct 83 ms 8520 KB Output is correct
16 Correct 48 ms 6428 KB Output is correct
17 Correct 84 ms 9804 KB Output is correct
18 Correct 78 ms 8532 KB Output is correct
19 Correct 74 ms 9800 KB Output is correct
20 Correct 73 ms 8520 KB Output is correct
21 Correct 333 ms 151476 KB Output is correct
22 Correct 426 ms 191420 KB Output is correct
23 Correct 439 ms 191560 KB Output is correct
24 Correct 349 ms 190428 KB Output is correct
25 Correct 403 ms 191560 KB Output is correct
26 Correct 394 ms 191560 KB Output is correct
27 Correct 276 ms 151400 KB Output is correct
28 Correct 370 ms 191560 KB Output is correct
29 Correct 274 ms 170056 KB Output is correct
30 Correct 271 ms 169800 KB Output is correct
31 Correct 238 ms 170056 KB Output is correct
32 Correct 232 ms 170088 KB Output is correct
33 Correct 280 ms 58720 KB Output is correct
34 Correct 305 ms 58428 KB Output is correct
35 Correct 287 ms 56648 KB Output is correct
36 Correct 312 ms 56500 KB Output is correct
37 Correct 294 ms 73552 KB Output is correct
38 Correct 314 ms 107340 KB Output is correct
39 Correct 380 ms 135868 KB Output is correct
40 Correct 265 ms 56592 KB Output is correct
41 Correct 257 ms 100936 KB Output is correct
42 Correct 325 ms 133704 KB Output is correct
43 Correct 232 ms 73800 KB Output is correct
44 Correct 281 ms 75852 KB Output is correct
45 Correct 207 ms 120228 KB Output is correct
46 Correct 147 ms 70472 KB Output is correct
47 Correct 3 ms 3408 KB Output is correct
48 Correct 4 ms 3408 KB Output is correct
49 Correct 783 ms 21068 KB Output is correct
50 Correct 738 ms 21124 KB Output is correct
51 Correct 806 ms 21288 KB Output is correct
52 Correct 823 ms 21176 KB Output is correct
53 Correct 773 ms 21028 KB Output is correct
54 Correct 332 ms 13684 KB Output is correct
55 Correct 56 ms 21512 KB Output is correct
56 Correct 46 ms 12260 KB Output is correct
57 Correct 268 ms 170056 KB Output is correct
58 Correct 202 ms 120416 KB Output is correct
59 Correct 178 ms 70500 KB Output is correct
60 Correct 106 ms 52040 KB Output is correct
61 Correct 111 ms 51976 KB Output is correct
62 Correct 111 ms 52552 KB Output is correct
63 Correct 118 ms 52004 KB Output is correct
64 Correct 114 ms 22984 KB Output is correct
65 Correct 516 ms 21496 KB Output is correct
66 Correct 573 ms 129608 KB Output is correct
67 Correct 503 ms 129448 KB Output is correct
68 Correct 701 ms 75080 KB Output is correct
69 Correct 523 ms 74968 KB Output is correct
70 Correct 110 ms 75036 KB Output is correct
71 Correct 99 ms 74876 KB Output is correct
72 Correct 124 ms 75084 KB Output is correct
73 Correct 219 ms 169860 KB Output is correct
74 Correct 234 ms 169928 KB Output is correct
75 Correct 242 ms 170036 KB Output is correct
76 Correct 64 ms 16228 KB Output is correct
77 Correct 117 ms 5384 KB Output is correct
78 Correct 76 ms 12360 KB Output is correct
79 Correct 56 ms 5828 KB Output is correct
80 Correct 85 ms 7752 KB Output is correct
81 Correct 1725 ms 25216 KB Output is correct
82 Correct 1885 ms 25400 KB Output is correct
83 Correct 2021 ms 25236 KB Output is correct
84 Correct 1985 ms 25228 KB Output is correct
85 Correct 1899 ms 25160 KB Output is correct
86 Correct 682 ms 17140 KB Output is correct
87 Correct 1350 ms 25928 KB Output is correct
88 Correct 1417 ms 26384 KB Output is correct
89 Correct 1473 ms 26308 KB Output is correct
90 Correct 535 ms 18248 KB Output is correct
91 Correct 70 ms 13756 KB Output is correct
92 Correct 237 ms 61700 KB Output is correct
93 Correct 233 ms 60388 KB Output is correct
94 Correct 232 ms 60744 KB Output is correct
95 Correct 256 ms 60348 KB Output is correct
96 Correct 348 ms 27720 KB Output is correct
97 Correct 1683 ms 25916 KB Output is correct
98 Correct 1795 ms 134472 KB Output is correct
99 Correct 1341 ms 134472 KB Output is correct
100 Correct 2341 ms 80076 KB Output is correct
101 Correct 1682 ms 79840 KB Output is correct
102 Correct 183 ms 79772 KB Output is correct
103 Correct 161 ms 80008 KB Output is correct
104 Correct 184 ms 79944 KB Output is correct
105 Correct 123 ms 11392 KB Output is correct
106 Correct 229 ms 7568 KB Output is correct
107 Correct 193 ms 16200 KB Output is correct
108 Correct 156 ms 8580 KB Output is correct
109 Correct 232 ms 10660 KB Output is correct