CSES - Datatähti 2021 alku

CSES - Datatähti 2021 alku - Results

Submission details
Task:	Alitaulukot
Sender:	nireo
Submission time:	2020-10-03 02:26:41 +0300
Language:	C++ (C++17)
Status:	READY
Result:	37

Feedback
group	verdict	score
#1	ACCEPTED	11
#2	ACCEPTED	26
#3	WRONG ANSWER	0

Test results
test	verdict	time	group
#1	ACCEPTED	0.01 s	1, 2, 3	details
#2	ACCEPTED	0.01 s	1, 2, 3	details
#3	ACCEPTED	0.01 s	1, 2, 3	details
#4	ACCEPTED	0.01 s	1, 2, 3	details
#5	ACCEPTED	0.01 s	1, 2, 3	details
#6	ACCEPTED	0.01 s	2, 3	details
#7	ACCEPTED	0.01 s	2, 3	details
#8	ACCEPTED	0.01 s	2, 3	details
#9	ACCEPTED	0.01 s	2, 3	details
#10	ACCEPTED	0.01 s	2, 3	details
#11	WRONG ANSWER	0.05 s	3	details
#12	ACCEPTED	0.04 s	3	details
#13	ACCEPTED	0.04 s	3	details
#14	WRONG ANSWER	0.09 s	3	details
#15	WRONG ANSWER	0.07 s	3	details
#16	WRONG ANSWER	0.08 s	3	details
#17	WRONG ANSWER	0.08 s	3	details

Code

#include <bits/stdc++.h>

#include <climits>
using namespace std;
typedef long long ll;

const ll mod = 1e12;

template <class T, int SZ>
struct MinSeg {
    T seg[2 * SZ], ID = mod;
    MinSeg() { memset(seg, 0, sizeof seg); }
    T comb(T a, T b) { return min(a, b); }
    void build() {
        for (int i = (SZ)-1; i >= 0; i--) {
            seg[i] = comb(seg[2 * i], seg[2 * i + 1]);
        }
    }

    void upd(int p, T value) {
        for (seg[p += SZ] = value; p > 1; p >>= 1)
            seg[p >> 1] = comb(seg[(p | 1) ^ 1], seg[p | 1]);
    }

    T query(int l, int r) {
        T res1 = ID, res2 = ID;
        r++;
        for (l += SZ, r += SZ; l < r; l >>= 1, r >>= 1) {
            if (l & 1)
                res1 = comb(res1, seg[l++]);
            if (r & 1)
                res2 = comb(seg[--r], res2);
        }
        return comb(res1, res2);
    }
};

template <class T, int SZ>
struct MaxSeg {
    T seg[2 * SZ], ID = 0;
    MaxSeg() { memset(seg, 0, sizeof seg); }
    T comb(T a, T b) { return max(a, b); }

    void build() {
        for (int i = (SZ)-1; i >= 0; i--) {
            seg[i] = comb(seg[2 * i], seg[2 * i + 1]);
        }
    }

    void upd(int p, T value) {  // set value at position p
        for (seg[p += SZ] = value; p > 1; p >>= 1)
            seg[p >> 1] = comb(seg[(p | 1) ^ 1], seg[p | 1]);
    }

    T query(int l, int r) {
        T res1 = ID, res2 = ID;
        r++;
        for (l += SZ, r += SZ; l < r; l >>= 1, r >>= 1) {
            if (l & 1)
                res1 = comb(res1, seg[l++]);
            if (r & 1)
                res2 = comb(seg[--r], res2);
        }
        return comb(res1, res2);
    }
};

MinSeg<ll, 1 << 18> s_min;
MaxSeg<ll, 1 << 18> s_max;

int main() {
    int n, k, ans = 0;
    cin >> n >> k;
    for (int i = 1; i < n + 1; ++i) {
        int x;
        cin >> x;
        s_max.upd(i, x);
        s_min.upd(i, x);
    }

    int start = 0, end = 0;
    while (end < n) {
        int max_value = s_max.query(start + 1, end + 1);
        int min_value = s_min.query(start + 1, end + 1);

        if (max_value - min_value <= k) {
            end++;

            if (end >= start)
                ans += end - start;
        } else {
            while (start < end) {
                start++;
                max_value = s_max.query(start + 1, end + 1);
                min_value = s_min.query(start + 1, end + 1);

                if (max_value - min_value <= k) {
                    break;
                }
            }
        }
    }

    cout << ans << "\n";
}

Test details

Test 1

Group: 1, 2, 3

Verdict: ACCEPTED

input
`100 0 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 ...` view save

correct output
`5050` view save

user output
`5050` view save

Test 2

Group: 1, 2, 3

Verdict: ACCEPTED

input
`100 2 5 5 2 4 3 5 3 4 3 2 3 4 5 4 4 ...` view save

correct output
`317` view save

user output
`317` view save

Test 3

Group: 1, 2, 3

Verdict: ACCEPTED

input
`100 10 71 60 61 96 25 10 10 9 84 85 1...` view save

correct output
`119` view save

user output
`119` view save

Test 4

Group: 1, 2, 3

Verdict: ACCEPTED

input
`100 990000000 111122929 961821360 578238211 ...` view save

correct output
`4006` view save

user output
`4006` view save

Test 5

Group: 1, 2, 3

Verdict: ACCEPTED

input
`100 1000000000 553190572 453407680 667300705 ...` view save

correct output
`5050` view save

user output
`5050` view save

Test 6

Group: 2, 3

Verdict: ACCEPTED

input
`2000 0 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 ...` view save

correct output
`2001000` view save

user output
`2001000` view save

Test 7

Group: 2, 3

Verdict: ACCEPTED

input
`2000 2 4 4 1 4 2 3 1 2 1 3 5 2 2 4 4 ...` view save

correct output
`6340` view save

user output
`6340` view save

Test 8

Group: 2, 3

Verdict: ACCEPTED

input
`2000 10 65 88 33 88 41 10 17 38 22 3 8...` view save

correct output
`2413` view save

user output
`2413` view save

Test 9

Group: 2, 3

Verdict: ACCEPTED

input
`2000 999000000 746120950 772769620 721488968 ...` view save

correct output
`1287776` view save

user output
`1287776` view save

Test 10

Group: 2, 3

Verdict: ACCEPTED

input
`2000 1000000000 621947980 510355354 756705418 ...` view save

correct output
`2001000` view save

user output
`2001000` view save

Test 11

Group: 3

Verdict: WRONG ANSWER

input
`100000 0 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 ...` view save

correct output
`5000050000` view save

user output
`705082704` view save

Test 12

Group: 3

Verdict: ACCEPTED

input
`100000 2 3 3 1 3 3 1 1 5 1 2 5 4 1 3 1 ...` view save

correct output
`317066` view save

user output
`317066` view save

Test 13

Group: 3

Verdict: ACCEPTED

input
`100000 10 10 3 6 3 43 60 5 48 15 27 86 4...` view save

correct output
`123292` view save

user output
`123292` view save

Test 14

Group: 3

Verdict: WRONG ANSWER

input
`100000 999990000 460235639 963048588 47270983 3...` view save

correct output
`4946886742` view save

user output
`651919446` view save

Test 15

Group: 3

Verdict: WRONG ANSWER

input
`100000 1000000000 885457070 18257718 927615960 3...` view save

correct output
`5000050000` view save

user output
`705082704` view save

Test 16

Group: 3

Verdict: WRONG ANSWER

input
`100000 50000 1 2 3 4 5 6 7 8 9 10 11 12 13 ...` view save

correct output
`3750075000` view save

user output
`-544892296` view save

Test 17

Group: 3

Verdict: WRONG ANSWER

input
`100000 50000 100000 99999 99998 99997 99996...` view save

correct output
`3750075000` view save

user output
`-544892296` view save

Datatähti 2021 alku

Alitaulukot

Code

Test details

Test 1

Test 2

Test 3

Test 4

Test 5

Test 6

Test 7

Test 8

Test 9

Test 10

Test 11

Test 12

Test 13

Test 14

Test 15

Test 16

Test 17

Tasks

Submissions (nireo)