oj.uz

답안 #1115464

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
1115464 2024-11-20T13:25:35 Z elush Bitaro, who Leaps through Time (JOI19_timeleap) C++14
4 / 100
 3000 ms 31736 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 = 330;
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]);
    }
}

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];
        else if (b > ran[a][1]) ans += b - ran[a][1], b = ran[a][1];
        a++;
    }
    while (a + block < c) {
        int bl = a / block;
        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;
        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;
            }
        }
        a += block;
    }
    while (a < c) {
        if (b < ran[a][0]) b = ran[a][0];
        else if (b > ran[a][1]) ans += b - ran[a][1], b = ran[a][1];
        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 2 ms 16720 KB Output is correct
2 Correct 2 ms 16720 KB Output is correct
3 Correct 2 ms 16720 KB Output is correct
4 Correct 2 ms 16720 KB Output is correct
5 Correct 2 ms 16888 KB Output is correct
6 Correct 2 ms 16888 KB Output is correct
7 Correct 2 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 6 ms 16720 KB Output is correct
12 Correct 6 ms 16892 KB Output is correct
13 Correct 6 ms 16892 KB Output is correct
14 Correct 6 ms 16896 KB Output is correct
15 Correct 6 ms 16720 KB Output is correct
16 Correct 6 ms 16720 KB Output is correct
17 Correct 7 ms 16856 KB Output is correct
18 Correct 6 ms 16720 KB Output is correct
19 Correct 8 ms 16720 KB Output is correct
20 Correct 6 ms 16720 KB Output is correct
21 Correct 6 ms 16720 KB Output is correct
22 Correct 6 ms 16720 KB Output is correct
23 Correct 5 ms 16720 KB Output is correct
24 Correct 5 ms 16880 KB Output is correct
25 Correct 6 ms 16720 KB Output is correct
26 Correct 6 ms 16856 KB Output is correct
27 Correct 6 ms 16720 KB Output is correct
28 Correct 6 ms 16720 KB Output is correct
29 Correct 6 ms 16888 KB Output is correct
30 Correct 6 ms 16720 KB Output is correct
31 Correct 7 ms 16720 KB Output is correct
32 Correct 6 ms 16720 KB Output is correct
33 Correct 6 ms 16892 KB Output is correct
34 Correct 6 ms 16720 KB Output is correct
35 Correct 6 ms 16720 KB Output is correct
36 Correct 6 ms 16720 KB Output is correct
37 Correct 6 ms 16720 KB Output is correct
38 Correct 6 ms 16720 KB Output is correct
39 Correct 6 ms 16720 KB Output is correct
40 Correct 6 ms 16720 KB Output is correct
41 Correct 2 ms 6480 KB Output is correct

Subtask #2
0 / 30.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2764 ms 31404 KB Output is correct
2 Correct 2556 ms 31404 KB Output is correct
3 Correct 2350 ms 31400 KB Output is correct
4 Correct 2548 ms 31400 KB Output is correct
5 Correct 2699 ms 31404 KB Output is correct
6 Correct 2566 ms 31408 KB Output is correct
7 Correct 2738 ms 31408 KB Output is correct
8 Correct 2918 ms 31736 KB Output is correct
9 Correct 2394 ms 31400 KB Output is correct
10 Correct 2591 ms 31400 KB Output is correct
11 Correct 2861 ms 31404 KB Output is correct
12 Execution timed out 3065 ms 27948 KB Time limit exceeded
13 Halted 0 ms 0 KB -

Subtask #3
0 / 66.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 16720 KB Output is correct
2 Correct 2 ms 16720 KB Output is correct
3 Correct 2 ms 16720 KB Output is correct
4 Correct 2 ms 16720 KB Output is correct
5 Correct 2 ms 16888 KB Output is correct
6 Correct 2 ms 16888 KB Output is correct
7 Correct 2 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 6 ms 16720 KB Output is correct
12 Correct 6 ms 16892 KB Output is correct
13 Correct 6 ms 16892 KB Output is correct
14 Correct 6 ms 16896 KB Output is correct
15 Correct 6 ms 16720 KB Output is correct
16 Correct 6 ms 16720 KB Output is correct
17 Correct 7 ms 16856 KB Output is correct
18 Correct 6 ms 16720 KB Output is correct
19 Correct 8 ms 16720 KB Output is correct
20 Correct 6 ms 16720 KB Output is correct
21 Correct 6 ms 16720 KB Output is correct
22 Correct 6 ms 16720 KB Output is correct
23 Correct 5 ms 16720 KB Output is correct
24 Correct 5 ms 16880 KB Output is correct
25 Correct 6 ms 16720 KB Output is correct
26 Correct 6 ms 16856 KB Output is correct
27 Correct 6 ms 16720 KB Output is correct
28 Correct 6 ms 16720 KB Output is correct
29 Correct 6 ms 16888 KB Output is correct
30 Correct 6 ms 16720 KB Output is correct
31 Correct 7 ms 16720 KB Output is correct
32 Correct 6 ms 16720 KB Output is correct
33 Correct 6 ms 16892 KB Output is correct
34 Correct 6 ms 16720 KB Output is correct
35 Correct 6 ms 16720 KB Output is correct
36 Correct 6 ms 16720 KB Output is correct
37 Correct 6 ms 16720 KB Output is correct
38 Correct 6 ms 16720 KB Output is correct
39 Correct 6 ms 16720 KB Output is correct
40 Correct 6 ms 16720 KB Output is correct
41 Correct 2 ms 6480 KB Output is correct
42 Correct 2764 ms 31404 KB Output is correct
43 Correct 2556 ms 31404 KB Output is correct
44 Correct 2350 ms 31400 KB Output is correct
45 Correct 2548 ms 31400 KB Output is correct
46 Correct 2699 ms 31404 KB Output is correct
47 Correct 2566 ms 31408 KB Output is correct
48 Correct 2738 ms 31408 KB Output is correct
49 Correct 2918 ms 31736 KB Output is correct
50 Correct 2394 ms 31400 KB Output is correct
51 Correct 2591 ms 31400 KB Output is correct
52 Correct 2861 ms 31404 KB Output is correct
53 Execution timed out 3065 ms 27948 KB Time limit exceeded
54 Halted 0 ms 0 KB -