Submission #665887

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
665887	2022-11-27T13:58:11 Z	Astrayt	Money (IZhO17_money)	C++17	100 / 100	221 ms	43468 KB

money

//君の手を握ってしまったら
//孤独を知らないこの街には
//もう二度と帰ってくることはできないのでしょう
//君が手を差し伸べた 光で影が生まれる
//歌って聞かせて この話の続き
//連れて行って見たことない星まで
//さユリ - 花の塔
#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
#define int ll
#define starburst ios::sync_with_stdio(0); cin.tie(0); cout.tie(0);
#define pii pair<int,int>
#define pb push_back
#define ff first
#define ss second
#define mp make_pair
#define maxn 1000005
#define mod 1000000007

struct DisjointSetUnion{
    int par[maxn];
    void init(){
        for(int i = 1; i <= maxn - 1; ++i) par[i] = i;
    }
    int qry(int u){
        return (u == par[u] ? u : par[u] = qry(par[u]));
    }
    void uni(int u, int v){
        u = qry(u), v = qry(v);
        par[u] = v;
    }
}dsu;

void solve(){
    int n, ans = 0; cin >> n;
    vector<int> v(n), cnt(maxn, 0);
    for(auto &x:v) cin >> x, cnt[x]++;
    dsu.init();
    for(int i = maxn - 1; i >= 1; --i) if(cnt[i] == 0) dsu.uni(i, i - 1);
    for(int i = n - 1, j = n - 1; i >= 0; i = j){
        ans++;
        while(j >= 0 && v[i] == v[j]) cnt[v[j]]--, j--;
        if(cnt[v[i]] == 0) dsu.uni(v[i], v[i] - 1);
        int x = dsu.qry(v[i] - 1);
        while(j >= 0){
            if(x != v[j]) break;
            cnt[v[j]]--, j--;
            if(cnt[x] == 0){
                dsu.uni(x, x - 1);
                x = dsu.qry(x);
            }
        }
    }
    cout << ans << '\n';
}

signed main(){
    starburst
    int t = 1; //cin >> t;
    while(t--) solve();
}

Subtask #1
9.0 / 9.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	10 ms	15984 KB	Output is correct
2	Correct	9 ms	15860 KB	Output is correct
3	Correct	9 ms	15956 KB	Output is correct
4	Correct	9 ms	15860 KB	Output is correct
5	Correct	9 ms	15956 KB	Output is correct
6	Correct	8 ms	15956 KB	Output is correct
7	Correct	14 ms	20720 KB	Output is correct
8	Correct	17 ms	27220 KB	Output is correct
9	Correct	13 ms	22376 KB	Output is correct
10	Correct	14 ms	20308 KB	Output is correct
11	Correct	15 ms	25056 KB	Output is correct
12	Correct	13 ms	20820 KB	Output is correct
13	Correct	16 ms	25092 KB	Output is correct
14	Correct	14 ms	23624 KB	Output is correct
15	Correct	15 ms	21588 KB	Output is correct
16	Correct	15 ms	21492 KB	Output is correct

Subtask #2
16.0 / 16.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	10 ms	15984 KB	Output is correct
2	Correct	9 ms	15860 KB	Output is correct
3	Correct	9 ms	15956 KB	Output is correct
4	Correct	9 ms	15860 KB	Output is correct
5	Correct	9 ms	15956 KB	Output is correct
6	Correct	8 ms	15956 KB	Output is correct
7	Correct	14 ms	20720 KB	Output is correct
8	Correct	17 ms	27220 KB	Output is correct
9	Correct	13 ms	22376 KB	Output is correct
10	Correct	14 ms	20308 KB	Output is correct
11	Correct	15 ms	25056 KB	Output is correct
12	Correct	13 ms	20820 KB	Output is correct
13	Correct	16 ms	25092 KB	Output is correct
14	Correct	14 ms	23624 KB	Output is correct
15	Correct	15 ms	21588 KB	Output is correct
16	Correct	15 ms	21492 KB	Output is correct
17	Correct	17 ms	21972 KB	Output is correct
18	Correct	15 ms	22800 KB	Output is correct
19	Correct	13 ms	19912 KB	Output is correct
20	Correct	17 ms	23360 KB	Output is correct
21	Correct	12 ms	19508 KB	Output is correct
22	Correct	17 ms	23884 KB	Output is correct
23	Correct	16 ms	26052 KB	Output is correct
24	Correct	20 ms	21496 KB	Output is correct
25	Correct	15 ms	19960 KB	Output is correct
26	Correct	15 ms	20296 KB	Output is correct

Subtask #3
20.0 / 20.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	10 ms	15984 KB	Output is correct
2	Correct	9 ms	15860 KB	Output is correct
3	Correct	9 ms	15956 KB	Output is correct
4	Correct	9 ms	15860 KB	Output is correct
5	Correct	9 ms	15956 KB	Output is correct
6	Correct	8 ms	15956 KB	Output is correct
7	Correct	14 ms	20720 KB	Output is correct
8	Correct	17 ms	27220 KB	Output is correct
9	Correct	13 ms	22376 KB	Output is correct
10	Correct	14 ms	20308 KB	Output is correct
11	Correct	15 ms	25056 KB	Output is correct
12	Correct	13 ms	20820 KB	Output is correct
13	Correct	16 ms	25092 KB	Output is correct
14	Correct	14 ms	23624 KB	Output is correct
15	Correct	15 ms	21588 KB	Output is correct
16	Correct	15 ms	21492 KB	Output is correct
17	Correct	17 ms	21972 KB	Output is correct
18	Correct	15 ms	22800 KB	Output is correct
19	Correct	13 ms	19912 KB	Output is correct
20	Correct	17 ms	23360 KB	Output is correct
21	Correct	12 ms	19508 KB	Output is correct
22	Correct	17 ms	23884 KB	Output is correct
23	Correct	16 ms	26052 KB	Output is correct
24	Correct	20 ms	21496 KB	Output is correct
25	Correct	15 ms	19960 KB	Output is correct
26	Correct	15 ms	20296 KB	Output is correct
27	Correct	11 ms	15956 KB	Output is correct
28	Correct	8 ms	15956 KB	Output is correct
29	Correct	10 ms	15956 KB	Output is correct
30	Correct	11 ms	15956 KB	Output is correct
31	Correct	10 ms	15944 KB	Output is correct
32	Correct	14 ms	21244 KB	Output is correct
33	Correct	14 ms	20564 KB	Output is correct
34	Correct	15 ms	20552 KB	Output is correct
35	Correct	14 ms	21864 KB	Output is correct
36	Correct	15 ms	24404 KB	Output is correct
37	Correct	12 ms	16468 KB	Output is correct
38	Correct	12 ms	16852 KB	Output is correct

Subtask #4
55.0 / 55.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	10 ms	15984 KB	Output is correct
2	Correct	9 ms	15860 KB	Output is correct
3	Correct	9 ms	15956 KB	Output is correct
4	Correct	9 ms	15860 KB	Output is correct
5	Correct	9 ms	15956 KB	Output is correct
6	Correct	8 ms	15956 KB	Output is correct
7	Correct	14 ms	20720 KB	Output is correct
8	Correct	17 ms	27220 KB	Output is correct
9	Correct	13 ms	22376 KB	Output is correct
10	Correct	14 ms	20308 KB	Output is correct
11	Correct	15 ms	25056 KB	Output is correct
12	Correct	13 ms	20820 KB	Output is correct
13	Correct	16 ms	25092 KB	Output is correct
14	Correct	14 ms	23624 KB	Output is correct
15	Correct	15 ms	21588 KB	Output is correct
16	Correct	15 ms	21492 KB	Output is correct
17	Correct	17 ms	21972 KB	Output is correct
18	Correct	15 ms	22800 KB	Output is correct
19	Correct	13 ms	19912 KB	Output is correct
20	Correct	17 ms	23360 KB	Output is correct
21	Correct	12 ms	19508 KB	Output is correct
22	Correct	17 ms	23884 KB	Output is correct
23	Correct	16 ms	26052 KB	Output is correct
24	Correct	20 ms	21496 KB	Output is correct
25	Correct	15 ms	19960 KB	Output is correct
26	Correct	15 ms	20296 KB	Output is correct
27	Correct	11 ms	15956 KB	Output is correct
28	Correct	8 ms	15956 KB	Output is correct
29	Correct	10 ms	15956 KB	Output is correct
30	Correct	11 ms	15956 KB	Output is correct
31	Correct	10 ms	15944 KB	Output is correct
32	Correct	14 ms	21244 KB	Output is correct
33	Correct	14 ms	20564 KB	Output is correct
34	Correct	15 ms	20552 KB	Output is correct
35	Correct	14 ms	21864 KB	Output is correct
36	Correct	15 ms	24404 KB	Output is correct
37	Correct	12 ms	16468 KB	Output is correct
38	Correct	12 ms	16852 KB	Output is correct
39	Correct	65 ms	31104 KB	Output is correct
40	Correct	151 ms	33100 KB	Output is correct
41	Correct	50 ms	31280 KB	Output is correct
42	Correct	46 ms	23892 KB	Output is correct
43	Correct	33 ms	22212 KB	Output is correct
44	Correct	103 ms	34408 KB	Output is correct
45	Correct	127 ms	36304 KB	Output is correct
46	Correct	138 ms	35524 KB	Output is correct
47	Correct	128 ms	43468 KB	Output is correct
48	Correct	110 ms	37864 KB	Output is correct
49	Correct	211 ms	30608 KB	Output is correct
50	Correct	171 ms	30564 KB	Output is correct
51	Correct	199 ms	30440 KB	Output is correct
52	Correct	197 ms	30596 KB	Output is correct
53	Correct	170 ms	30604 KB	Output is correct
54	Correct	170 ms	30312 KB	Output is correct
55	Correct	213 ms	30652 KB	Output is correct
56	Correct	221 ms	30544 KB	Output is correct
57	Correct	219 ms	30432 KB	Output is correct
58	Correct	209 ms	30436 KB	Output is correct
59	Correct	195 ms	30540 KB	Output is correct
60	Correct	200 ms	30428 KB	Output is correct
61	Correct	204 ms	30432 KB	Output is correct
62	Correct	198 ms	30548 KB	Output is correct

Submission #665887

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