답안 #172767

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
172767	2020-01-02T14:45:53 Z	VEGAnn	Money (IZhO17_money)	C++14	100 / 100	608 ms	112900 KB

money

#include <bits/stdc++.h>
#define sz(x) ((int)x.size())
#define PB push_back
#define all(x) x.begin(),x.end()
using namespace std;
const int N = 1000100;
const int PW = 20;
const int oo = 2e9;
int a[N], n, f[N], kol[N], pref[N], vl, sp[N][PW], prec[N], pr[N], nt[N];
vector<int> vc;

bool ok(int l, int r){
    int kl = pref[r] - pref[l];
    if (kl > 0) return 0;
    return (a[r] <= vl);
}

int Min(int l, int r){
    int len = r - l + 1;
    return min(sp[l][prec[len]], sp[r - (1 << prec[len]) + 1][prec[len]]);
}

void update(int ps){
    sp[ps][0] = f[ps];
    for (int po = 1; po < PW; po++){
        if (ps + (1 << po) - 1 >= n) break;
        sp[ps][po] = min(sp[ps][po - 1], sp[ps + (1 << (po - 1))][po - 1]);
    }
}

int main(){
    ios_base::sync_with_stdio(0); cin.tie(0);
//    freopen("in.txt","r",stdin);
    cin >> n;
    for (int i = 0; i < n; i++) {
        cin >> a[i];
        kol[a[i]]++;
    }

    int pre = 0;
    for (int i = 1; i < N; i++){
        pr[i] = pre;
        if (kol[i] > 0)
            pre = i;
    }
    pre = N - 1;
    for (int i = pre - 1; i > 0; i--){
        nt[i] = pre;
        if (kol[i] > 0)
            pre = i;
    }

    pref[0] = 0;
    for (int i = 1; i < n; i++)
        pref[i] = pref[i - 1] + bool(a[i] < a[i - 1]);

    prec[0] = -1;
    for (int i = 1; i <= n; i++)
        prec[i] = prec[i >> 1] + 1;

    f[n] = 0;
    for (int it = n - 1; it >= 0; it--){
        kol[a[it]]--;
        if (kol[a[it]] == 0){
            pr[nt[a[it]]] = pr[a[it]];
            nt[pr[a[it]]] = nt[a[it]];
        }
        vl = nt[a[it]];

        int l = it, r = n - 1;
        while (l < r){
            int md = (l + r + 1) >> 1;
            if (ok(l, md))
                l = md;
            else r = md - 1;
        }
        f[it] = Min(it + 1, l + 1) + 1;
        update(it);
    }
    cout << f[0];
    return 0;
}

Subtask #1
9.0 / 9.0

#	결과	실행 시간	메모리	Grader output
1	Correct	11 ms	8184 KB	Output is correct
2	Correct	11 ms	8184 KB	Output is correct
3	Correct	11 ms	8184 KB	Output is correct
4	Correct	11 ms	8184 KB	Output is correct
5	Correct	10 ms	8184 KB	Output is correct
6	Correct	11 ms	8184 KB	Output is correct
7	Correct	10 ms	8184 KB	Output is correct
8	Correct	10 ms	8312 KB	Output is correct
9	Correct	10 ms	8184 KB	Output is correct
10	Correct	10 ms	8184 KB	Output is correct
11	Correct	10 ms	8184 KB	Output is correct
12	Correct	10 ms	8184 KB	Output is correct
13	Correct	10 ms	8184 KB	Output is correct
14	Correct	10 ms	8184 KB	Output is correct
15	Correct	10 ms	8360 KB	Output is correct
16	Correct	10 ms	8284 KB	Output is correct

Subtask #2
16.0 / 16.0

#	결과	실행 시간	메모리	Grader output
1	Correct	11 ms	8184 KB	Output is correct
2	Correct	11 ms	8184 KB	Output is correct
3	Correct	11 ms	8184 KB	Output is correct
4	Correct	11 ms	8184 KB	Output is correct
5	Correct	10 ms	8184 KB	Output is correct
6	Correct	11 ms	8184 KB	Output is correct
7	Correct	10 ms	8184 KB	Output is correct
8	Correct	10 ms	8312 KB	Output is correct
9	Correct	10 ms	8184 KB	Output is correct
10	Correct	10 ms	8184 KB	Output is correct
11	Correct	10 ms	8184 KB	Output is correct
12	Correct	10 ms	8184 KB	Output is correct
13	Correct	10 ms	8184 KB	Output is correct
14	Correct	10 ms	8184 KB	Output is correct
15	Correct	10 ms	8360 KB	Output is correct
16	Correct	10 ms	8284 KB	Output is correct
17	Correct	11 ms	8312 KB	Output is correct
18	Correct	11 ms	8312 KB	Output is correct
19	Correct	10 ms	8312 KB	Output is correct
20	Correct	10 ms	8184 KB	Output is correct
21	Correct	11 ms	8312 KB	Output is correct
22	Correct	11 ms	8312 KB	Output is correct
23	Correct	11 ms	8184 KB	Output is correct
24	Correct	10 ms	8184 KB	Output is correct
25	Correct	11 ms	8228 KB	Output is correct
26	Correct	10 ms	8184 KB	Output is correct

Subtask #3
20.0 / 20.0

#	결과	실행 시간	메모리	Grader output
1	Correct	11 ms	8184 KB	Output is correct
2	Correct	11 ms	8184 KB	Output is correct
3	Correct	11 ms	8184 KB	Output is correct
4	Correct	11 ms	8184 KB	Output is correct
5	Correct	10 ms	8184 KB	Output is correct
6	Correct	11 ms	8184 KB	Output is correct
7	Correct	10 ms	8184 KB	Output is correct
8	Correct	10 ms	8312 KB	Output is correct
9	Correct	10 ms	8184 KB	Output is correct
10	Correct	10 ms	8184 KB	Output is correct
11	Correct	10 ms	8184 KB	Output is correct
12	Correct	10 ms	8184 KB	Output is correct
13	Correct	10 ms	8184 KB	Output is correct
14	Correct	10 ms	8184 KB	Output is correct
15	Correct	10 ms	8360 KB	Output is correct
16	Correct	10 ms	8284 KB	Output is correct
17	Correct	11 ms	8312 KB	Output is correct
18	Correct	11 ms	8312 KB	Output is correct
19	Correct	10 ms	8312 KB	Output is correct
20	Correct	10 ms	8184 KB	Output is correct
21	Correct	11 ms	8312 KB	Output is correct
22	Correct	11 ms	8312 KB	Output is correct
23	Correct	11 ms	8184 KB	Output is correct
24	Correct	10 ms	8184 KB	Output is correct
25	Correct	11 ms	8228 KB	Output is correct
26	Correct	10 ms	8184 KB	Output is correct
27	Correct	11 ms	8184 KB	Output is correct
28	Correct	10 ms	8184 KB	Output is correct
29	Correct	10 ms	8184 KB	Output is correct
30	Correct	11 ms	8184 KB	Output is correct
31	Correct	11 ms	8184 KB	Output is correct
32	Correct	11 ms	8312 KB	Output is correct
33	Correct	11 ms	8312 KB	Output is correct
34	Correct	11 ms	8312 KB	Output is correct
35	Correct	11 ms	8312 KB	Output is correct
36	Correct	10 ms	8184 KB	Output is correct
37	Correct	11 ms	8824 KB	Output is correct
38	Correct	11 ms	8824 KB	Output is correct

Subtask #4
55.0 / 55.0

#	결과	실행 시간	메모리	Grader output
1	Correct	11 ms	8184 KB	Output is correct
2	Correct	11 ms	8184 KB	Output is correct
3	Correct	11 ms	8184 KB	Output is correct
4	Correct	11 ms	8184 KB	Output is correct
5	Correct	10 ms	8184 KB	Output is correct
6	Correct	11 ms	8184 KB	Output is correct
7	Correct	10 ms	8184 KB	Output is correct
8	Correct	10 ms	8312 KB	Output is correct
9	Correct	10 ms	8184 KB	Output is correct
10	Correct	10 ms	8184 KB	Output is correct
11	Correct	10 ms	8184 KB	Output is correct
12	Correct	10 ms	8184 KB	Output is correct
13	Correct	10 ms	8184 KB	Output is correct
14	Correct	10 ms	8184 KB	Output is correct
15	Correct	10 ms	8360 KB	Output is correct
16	Correct	10 ms	8284 KB	Output is correct
17	Correct	11 ms	8312 KB	Output is correct
18	Correct	11 ms	8312 KB	Output is correct
19	Correct	10 ms	8312 KB	Output is correct
20	Correct	10 ms	8184 KB	Output is correct
21	Correct	11 ms	8312 KB	Output is correct
22	Correct	11 ms	8312 KB	Output is correct
23	Correct	11 ms	8184 KB	Output is correct
24	Correct	10 ms	8184 KB	Output is correct
25	Correct	11 ms	8228 KB	Output is correct
26	Correct	10 ms	8184 KB	Output is correct
27	Correct	11 ms	8184 KB	Output is correct
28	Correct	10 ms	8184 KB	Output is correct
29	Correct	10 ms	8184 KB	Output is correct
30	Correct	11 ms	8184 KB	Output is correct
31	Correct	11 ms	8184 KB	Output is correct
32	Correct	11 ms	8312 KB	Output is correct
33	Correct	11 ms	8312 KB	Output is correct
34	Correct	11 ms	8312 KB	Output is correct
35	Correct	11 ms	8312 KB	Output is correct
36	Correct	10 ms	8184 KB	Output is correct
37	Correct	11 ms	8824 KB	Output is correct
38	Correct	11 ms	8824 KB	Output is correct
39	Correct	158 ms	53624 KB	Output is correct
40	Correct	256 ms	82552 KB	Output is correct
41	Correct	131 ms	44924 KB	Output is correct
42	Correct	114 ms	40920 KB	Output is correct
43	Correct	82 ms	31352 KB	Output is correct
44	Correct	327 ms	102468 KB	Output is correct
45	Correct	330 ms	102352 KB	Output is correct
46	Correct	327 ms	102392 KB	Output is correct
47	Correct	325 ms	102652 KB	Output is correct
48	Correct	328 ms	102520 KB	Output is correct
49	Correct	456 ms	106356 KB	Output is correct
50	Correct	478 ms	106480 KB	Output is correct
51	Correct	448 ms	106364 KB	Output is correct
52	Correct	450 ms	106388 KB	Output is correct
53	Correct	520 ms	106360 KB	Output is correct
54	Correct	452 ms	106360 KB	Output is correct
55	Correct	589 ms	106360 KB	Output is correct
56	Correct	562 ms	112880 KB	Output is correct
57	Correct	561 ms	112816 KB	Output is correct
58	Correct	566 ms	112704 KB	Output is correct
59	Correct	584 ms	112860 KB	Output is correct
60	Correct	572 ms	112816 KB	Output is correct
61	Correct	608 ms	112888 KB	Output is correct
62	Correct	567 ms	112900 KB	Output is correct

답안 #172767

Compilation message

Subtask #1 9.0 / 9.0

Subtask #2 16.0 / 16.0

Subtask #3 20.0 / 20.0

Subtask #4 55.0 / 55.0

Subtask #1
9.0 / 9.0

Subtask #2
16.0 / 16.0

Subtask #3
20.0 / 20.0

Subtask #4
55.0 / 55.0