oj.uz

답안 #1115480

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
1115480 2024-11-20T14:01:43 Z elush Bitaro, who Leaps through Time (JOI19_timeleap) C++14
100 / 100
 2461 ms 44636 KB 
#include <bits/stdc++.h>
#define x first
#define y second
#define all(v) v.begin(), v.end()
#define chkmax(a, b) a = max(a, b)
#define chkmin(a, b) a = min(a, b)
//#define int ll
using namespace std;
typedef long long ll;
typedef vector<ll> vi;
typedef vector<vi> vvi;
typedef pair<ll, ll> pii;
typedef vector<pii> vii;

const int block = 200;
const int MAX_N = 3e5 + 5;

int nx[MAX_N][2];
pair<ll, int> dp[MAX_N][2];
pair<int, int> dq[2 * block + 1];
int rangesl[MAX_N / block + 1][block];
int rangesr[MAX_N / block + 1][block];
int ran[MAX_N][2];
int sz[MAX_N / block + 1];

void Update(int a, int b) {
    int dl = block, dr = block;
    for (int i = a; i < b; i++) {
        while (dl < dr) {
            if (ran[dq[dl].x][dq[dl].y] < ran[i][0]) {
                nx[dq[dl].x][dq[dl].y] = i;
                dl++;
            } else if (ran[dq[dr - 1].x][dq[dr - 1].y] > ran[i][1]) {
                nx[dq[dr - 1].x][dq[dr - 1].y] = i;
                dr--;
            } else break;
        }
        dq[--dl] = {i, 0}, dq[dr++] = {i, 1};
    }
    while (dl < dr) {
        nx[dq[dl].x][dq[dl].y] = b;
        dl++;
    }
    for (int i = b - 1; i >= a; i--) {
        for (int j = 0; j < 2; j++) {
            int x = nx[i][j];
            if (x == b) {
                dp[i][j] = {0, ran[i][j]};
            } else {
                if (ran[i][j] > ran[x][1]) {
                    dp[i][j] = {dp[x][1].x + ran[i][j] - ran[x][1], dp[x][1].y};
                } else {
                    dp[i][j] = {dp[x][0].x, dp[x][0].y};
                }
            }
        }
    }
    int bl = a / block;
    sz[bl] = b - a;
    rangesl[bl][0] = ran[a][0];
    rangesr[bl][0] = ran[a][1];
    for (int i = a + 1; i < b; i++) {
        rangesl[bl][i - a] = max(rangesl[bl][i - a - 1], ran[i][0]);
        rangesr[bl][i - a] = min(rangesr[bl][i - a - 1], ran[i][1]);
        if (rangesl[bl][i - a] > rangesr[bl][i - a]) {
            chkmin(sz[bl], i - a);
        }
    }
//    sz[bl]--;
}

ll Query(int a, int b, int c, int d) {
    ll ans = 0;
    while (a < c && a % block) {
        if (b < ran[a][0]) b = ran[a][0], a = nx[a][0];
        else if (b > ran[a][1]) ans += b - ran[a][1], b = ran[a][1], a = nx[a][1];
        else a++;
    }
    while (a + block < c) {
        int bl = a / block;
        if (b > rangesr[bl][sz[bl] - 1]) {
            ans += b - rangesr[bl][sz[bl] - 1];
            b = rangesr[bl][sz[bl] - 1];
        } else if (b < rangesl[bl][sz[bl] - 1]) {
            b = rangesl[bl][sz[bl] - 1];
        }
        int i = a + sz[bl];
        if (i < a + block) {
            if (b <= ran[i][0]) {
                ans += dp[i][0].x;
                b = dp[i][0].y;
            } else if (b >= ran[i][1]) {
                ans += dp[i][1].x;
                ans += b - ran[i][1];
                b = dp[i][1].y;
            }
        }
//        int i = min(lower_bound(rangesl[bl], rangesl[bl] + sz[bl], b) - rangesl[bl],
//             lower_bound(rangesr[bl], rangesr[bl] + sz[bl], b, greater<int>()) - rangesr[bl]) + a;
        a += block;
    }
    while (a < c) {
        if (b < ran[a][0]) b = ran[a][0], a = nx[a][0];
        else if (b > ran[a][1]) ans += b - ran[a][1], b = ran[a][1], a = nx[a][1];
        else a++;
    }
    return ans + max<ll>(0, b - d);
}

int L[MAX_N], R[MAX_N], t[MAX_N], a[MAX_N], b[MAX_N], c[MAX_N], d[MAX_N];

ll ans[MAX_N];

int32_t main() {
    ios_base::sync_with_stdio(false);
    cin.tie(0);
    int n, q;
    cin >> n >> q;
    for (int i = 0; i + 1 < n; i++) cin >> L[i] >> R[i];
    for (int i = 0; i < q; i++) {
        cin >> t[i] >> a[i] >> b[i] >> c[i];
        if (t[i] == 2) cin >> d[i];
    }
    for (int i = 0; i < q; i++) a[i]--, c[i]--;
    for (int i = 0; i + 1 < n; i++) R[i]--;
    for (int ti = 0; ti < 2; ti++) {
        for (int i = 0; i + 1 < n; i++) {
            ran[i][0] = L[i] - i, ran[i][1] = R[i] - i;
        }
        for (int i = 0; i + 1 < n; i += block) {
            Update(i, min(i + block, n - 1));
        }
        for (int i = 0; i < q; i++) {
            if (t[i] == 1) {
                ran[a[i]][0] = b[i] - a[i], ran[a[i]][1] = c[i] - a[i];
                Update(a[i] / block * block, min(n - 1, a[i] / block * block + block));
            } else {
                if (a[i] <= c[i]) ans[i] = Query(a[i], b[i] - a[i], c[i], d[i] - c[i]);
            }
        }
        reverse(L, L + n - 1), reverse(R, R + n - 1);
        for (int i = 0; i < q; i++) {
            if (t[i] == 1) a[i] = n - 2 - a[i];
            else a[i] = n - 1 - a[i], c[i] = n - 1 - c[i];
        }
    }
    for (int i = 0; i < q; i++) {
        if (t[i] == 2) cout << ans[i] << '\n';
    }
}

Subtask #1
4.0 / 4.0

# 결과 실행 시간 메모리 Grader output
1 Correct 3 ms 16720 KB Output is correct
2 Correct 3 ms 16720 KB Output is correct
3 Correct 2 ms 16720 KB Output is correct
4 Correct 3 ms 16720 KB Output is correct
5 Correct 3 ms 16732 KB Output is correct
6 Correct 2 ms 16720 KB Output is correct
7 Correct 3 ms 16720 KB Output is correct
8 Correct 2 ms 16720 KB Output is correct
9 Correct 2 ms 16720 KB Output is correct
10 Correct 2 ms 16720 KB Output is correct
11 Correct 5 ms 16896 KB Output is correct
12 Correct 5 ms 16732 KB Output is correct
13 Correct 5 ms 16888 KB Output is correct
14 Correct 5 ms 16720 KB Output is correct
15 Correct 5 ms 16720 KB Output is correct
16 Correct 5 ms 16720 KB Output is correct
17 Correct 5 ms 17056 KB Output is correct
18 Correct 5 ms 16720 KB Output is correct
19 Correct 5 ms 16892 KB Output is correct
20 Correct 5 ms 16720 KB Output is correct
21 Correct 5 ms 16880 KB Output is correct
22 Correct 5 ms 16720 KB Output is correct
23 Correct 5 ms 16720 KB Output is correct
24 Correct 6 ms 16720 KB Output is correct
25 Correct 5 ms 16720 KB Output is correct
26 Correct 4 ms 16720 KB Output is correct
27 Correct 5 ms 16884 KB Output is correct
28 Correct 7 ms 16720 KB Output is correct
29 Correct 5 ms 16720 KB Output is correct
30 Correct 5 ms 16720 KB Output is correct
31 Correct 5 ms 16880 KB Output is correct
32 Correct 7 ms 16720 KB Output is correct
33 Correct 5 ms 16720 KB Output is correct
34 Correct 7 ms 16888 KB Output is correct
35 Correct 5 ms 16720 KB Output is correct
36 Correct 5 ms 16720 KB Output is correct
37 Correct 5 ms 16720 KB Output is correct
38 Correct 5 ms 16720 KB Output is correct
39 Correct 5 ms 16720 KB Output is correct
40 Correct 5 ms 16720 KB Output is correct
41 Correct 2 ms 6480 KB Output is correct

Subtask #2
30.0 / 30.0

# 결과 실행 시간 메모리 Grader output
1 Correct 991 ms 31452 KB Output is correct
2 Correct 938 ms 31408 KB Output is correct
3 Correct 948 ms 31560 KB Output is correct
4 Correct 889 ms 31300 KB Output is correct
5 Correct 924 ms 31404 KB Output is correct
6 Correct 879 ms 31440 KB Output is correct
7 Correct 1189 ms 31440 KB Output is correct
8 Correct 1244 ms 31560 KB Output is correct
9 Correct 1035 ms 31444 KB Output is correct
10 Correct 887 ms 31404 KB Output is correct
11 Correct 909 ms 31304 KB Output is correct
12 Correct 967 ms 31448 KB Output is correct
13 Correct 1012 ms 31560 KB Output is correct
14 Correct 2 ms 6480 KB Output is correct

Subtask #3
66.0 / 66.0

# 결과 실행 시간 메모리 Grader output
1 Correct 3 ms 16720 KB Output is correct
2 Correct 3 ms 16720 KB Output is correct
3 Correct 2 ms 16720 KB Output is correct
4 Correct 3 ms 16720 KB Output is correct
5 Correct 3 ms 16732 KB Output is correct
6 Correct 2 ms 16720 KB Output is correct
7 Correct 3 ms 16720 KB Output is correct
8 Correct 2 ms 16720 KB Output is correct
9 Correct 2 ms 16720 KB Output is correct
10 Correct 2 ms 16720 KB Output is correct
11 Correct 5 ms 16896 KB Output is correct
12 Correct 5 ms 16732 KB Output is correct
13 Correct 5 ms 16888 KB Output is correct
14 Correct 5 ms 16720 KB Output is correct
15 Correct 5 ms 16720 KB Output is correct
16 Correct 5 ms 16720 KB Output is correct
17 Correct 5 ms 17056 KB Output is correct
18 Correct 5 ms 16720 KB Output is correct
19 Correct 5 ms 16892 KB Output is correct
20 Correct 5 ms 16720 KB Output is correct
21 Correct 5 ms 16880 KB Output is correct
22 Correct 5 ms 16720 KB Output is correct
23 Correct 5 ms 16720 KB Output is correct
24 Correct 6 ms 16720 KB Output is correct
25 Correct 5 ms 16720 KB Output is correct
26 Correct 4 ms 16720 KB Output is correct
27 Correct 5 ms 16884 KB Output is correct
28 Correct 7 ms 16720 KB Output is correct
29 Correct 5 ms 16720 KB Output is correct
30 Correct 5 ms 16720 KB Output is correct
31 Correct 5 ms 16880 KB Output is correct
32 Correct 7 ms 16720 KB Output is correct
33 Correct 5 ms 16720 KB Output is correct
34 Correct 7 ms 16888 KB Output is correct
35 Correct 5 ms 16720 KB Output is correct
36 Correct 5 ms 16720 KB Output is correct
37 Correct 5 ms 16720 KB Output is correct
38 Correct 5 ms 16720 KB Output is correct
39 Correct 5 ms 16720 KB Output is correct
40 Correct 5 ms 16720 KB Output is correct
41 Correct 2 ms 6480 KB Output is correct
42 Correct 991 ms 31452 KB Output is correct
43 Correct 938 ms 31408 KB Output is correct
44 Correct 948 ms 31560 KB Output is correct
45 Correct 889 ms 31300 KB Output is correct
46 Correct 924 ms 31404 KB Output is correct
47 Correct 879 ms 31440 KB Output is correct
48 Correct 1189 ms 31440 KB Output is correct
49 Correct 1244 ms 31560 KB Output is correct
50 Correct 1035 ms 31444 KB Output is correct
51 Correct 887 ms 31404 KB Output is correct
52 Correct 909 ms 31304 KB Output is correct
53 Correct 967 ms 31448 KB Output is correct
54 Correct 1012 ms 31560 KB Output is correct
55 Correct 2 ms 6480 KB Output is correct
56 Correct 2375 ms 29356 KB Output is correct
57 Correct 2310 ms 43336 KB Output is correct
58 Correct 2335 ms 44064 KB Output is correct
59 Correct 2274 ms 44104 KB Output is correct
60 Correct 2312 ms 43680 KB Output is correct
61 Correct 2374 ms 44376 KB Output is correct
62 Correct 2382 ms 44332 KB Output is correct
63 Correct 2190 ms 44236 KB Output is correct
64 Correct 2461 ms 44392 KB Output is correct
65 Correct 2326 ms 43980 KB Output is correct
66 Correct 1802 ms 43848 KB Output is correct
67 Correct 1849 ms 44188 KB Output is correct
68 Correct 1745 ms 43348 KB Output is correct
69 Correct 1783 ms 44380 KB Output is correct
70 Correct 1841 ms 43620 KB Output is correct
71 Correct 2279 ms 42948 KB Output is correct
72 Correct 2263 ms 43192 KB Output is correct
73 Correct 2260 ms 43876 KB Output is correct
74 Correct 2413 ms 43908 KB Output is correct
75 Correct 2424 ms 44052 KB Output is correct
76 Correct 2455 ms 44636 KB Output is correct
77 Correct 2 ms 6480 KB Output is correct