Submission #573409

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
573409	2022-06-06T14:37:04 Z	MohammadAghil	Money (IZhO17_money)	C++14	100 / 100	171 ms	16064 KB

money

      #include <bits/stdc++.h>
  #pragma GCC optimize ("Ofast,unroll-loops")
// #pragma GCC target ("avx2")
    using namespace std;
  typedef long long ll;
   typedef pair<int, int> pp;
    #define er(args ...) cerr << __LINE__ << ": ", err(new istringstream(string(#args)), args), cerr << endl
      #define per(i,r,l) for(int i = (r); i >= (l); i--)
        #define rep(i,l,r) for(int i = (l); i < (r); i++)
           #define all(x) x.begin(), x.end()
              #define sz(x) (int)(x).size()
                  #define pb push_back
                      #define ss second
                           #define ff first
                                   void err(istringstream *iss){}template<typename T,typename ...Args> void err(istringstream *iss,const T &_val, const Args&...args){string _name;*iss>>_name;if(_name.back()==',')_name.pop_back();cerr<<_name<<" = "<<_val<<", ",err(iss,args...);}
mt19937 rng(chrono::steady_clock::now().time_since_epoch().count());
const ll mod = 1e9 + 7, maxn = 1e6 + 5, lg = 22, lng = 26, inf = ll(1e9) + 5;
ll pw(ll a,ll b,ll md=mod){if(!b)return 1;ll k=pw(a,b>>1ll);return k*k%md*(b&1ll?a:1)%md;}

int prv[maxn], nxt[maxn], cnt[maxn];

void del(int x){
     prv[nxt[x]] = prv[x], nxt[prv[x]] = nxt[x];
}

int main(){
     cin.tie(0) -> sync_with_stdio(0);
     int n; cin >> n;
     vector<int> a(n);
     rep(i,0,n) cin >> a[i], cnt[a[i]]++;
     iota(nxt, nxt + maxn, 1), iota(prv, prv + maxn, -1);
     rep(i,1,maxn-1) if(!cnt[i]) del(i);
     int ans = 0, bl = 0;
     per(i,n-1,0){
          if(i == n-1 || (bl > 1 && a[i] != a[i+1] && cnt[a[i+1]]) || (a[i] != a[i+1] && prv[a[i+1]] != a[i])) bl = 0, ans++;
          if(i == n-1 || a[i] != a[i+1]) bl++;
          cnt[a[i]]--;
          if(!cnt[a[i]]) del(a[i]);
     }
     cout << ans << '\n';
     return 0; 
}

Subtask #1
9.0 / 9.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	8 ms	8148 KB	Output is correct
2	Correct	8 ms	8148 KB	Output is correct
3	Correct	9 ms	8148 KB	Output is correct
4	Correct	8 ms	8148 KB	Output is correct
5	Correct	8 ms	8148 KB	Output is correct
6	Correct	8 ms	8148 KB	Output is correct
7	Correct	8 ms	8148 KB	Output is correct
8	Correct	9 ms	8168 KB	Output is correct
9	Correct	7 ms	8148 KB	Output is correct
10	Correct	9 ms	8180 KB	Output is correct
11	Correct	8 ms	8148 KB	Output is correct
12	Correct	8 ms	8180 KB	Output is correct
13	Correct	9 ms	8064 KB	Output is correct
14	Correct	8 ms	8148 KB	Output is correct
15	Correct	8 ms	8184 KB	Output is correct
16	Correct	8 ms	8192 KB	Output is correct

Subtask #2
16.0 / 16.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	8 ms	8148 KB	Output is correct
2	Correct	8 ms	8148 KB	Output is correct
3	Correct	9 ms	8148 KB	Output is correct
4	Correct	8 ms	8148 KB	Output is correct
5	Correct	8 ms	8148 KB	Output is correct
6	Correct	8 ms	8148 KB	Output is correct
7	Correct	8 ms	8148 KB	Output is correct
8	Correct	9 ms	8168 KB	Output is correct
9	Correct	7 ms	8148 KB	Output is correct
10	Correct	9 ms	8180 KB	Output is correct
11	Correct	8 ms	8148 KB	Output is correct
12	Correct	8 ms	8180 KB	Output is correct
13	Correct	9 ms	8064 KB	Output is correct
14	Correct	8 ms	8148 KB	Output is correct
15	Correct	8 ms	8184 KB	Output is correct
16	Correct	8 ms	8192 KB	Output is correct
17	Correct	8 ms	8132 KB	Output is correct
18	Correct	8 ms	8148 KB	Output is correct
19	Correct	9 ms	8148 KB	Output is correct
20	Correct	9 ms	8184 KB	Output is correct
21	Correct	8 ms	8148 KB	Output is correct
22	Correct	8 ms	8176 KB	Output is correct
23	Correct	9 ms	8176 KB	Output is correct
24	Correct	8 ms	8148 KB	Output is correct
25	Correct	8 ms	8148 KB	Output is correct
26	Correct	8 ms	8148 KB	Output is correct

Subtask #3
20.0 / 20.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	8 ms	8148 KB	Output is correct
2	Correct	8 ms	8148 KB	Output is correct
3	Correct	9 ms	8148 KB	Output is correct
4	Correct	8 ms	8148 KB	Output is correct
5	Correct	8 ms	8148 KB	Output is correct
6	Correct	8 ms	8148 KB	Output is correct
7	Correct	8 ms	8148 KB	Output is correct
8	Correct	9 ms	8168 KB	Output is correct
9	Correct	7 ms	8148 KB	Output is correct
10	Correct	9 ms	8180 KB	Output is correct
11	Correct	8 ms	8148 KB	Output is correct
12	Correct	8 ms	8180 KB	Output is correct
13	Correct	9 ms	8064 KB	Output is correct
14	Correct	8 ms	8148 KB	Output is correct
15	Correct	8 ms	8184 KB	Output is correct
16	Correct	8 ms	8192 KB	Output is correct
17	Correct	8 ms	8132 KB	Output is correct
18	Correct	8 ms	8148 KB	Output is correct
19	Correct	9 ms	8148 KB	Output is correct
20	Correct	9 ms	8184 KB	Output is correct
21	Correct	8 ms	8148 KB	Output is correct
22	Correct	8 ms	8176 KB	Output is correct
23	Correct	9 ms	8176 KB	Output is correct
24	Correct	8 ms	8148 KB	Output is correct
25	Correct	8 ms	8148 KB	Output is correct
26	Correct	8 ms	8148 KB	Output is correct
27	Correct	8 ms	8148 KB	Output is correct
28	Correct	7 ms	8148 KB	Output is correct
29	Correct	8 ms	8164 KB	Output is correct
30	Correct	8 ms	8148 KB	Output is correct
31	Correct	8 ms	8164 KB	Output is correct
32	Correct	9 ms	8148 KB	Output is correct
33	Correct	8 ms	8188 KB	Output is correct
34	Correct	8 ms	8148 KB	Output is correct
35	Correct	8 ms	8180 KB	Output is correct
36	Correct	8 ms	8148 KB	Output is correct
37	Correct	8 ms	8660 KB	Output is correct
38	Correct	8 ms	8760 KB	Output is correct

Subtask #4
55.0 / 55.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	8 ms	8148 KB	Output is correct
2	Correct	8 ms	8148 KB	Output is correct
3	Correct	9 ms	8148 KB	Output is correct
4	Correct	8 ms	8148 KB	Output is correct
5	Correct	8 ms	8148 KB	Output is correct
6	Correct	8 ms	8148 KB	Output is correct
7	Correct	8 ms	8148 KB	Output is correct
8	Correct	9 ms	8168 KB	Output is correct
9	Correct	7 ms	8148 KB	Output is correct
10	Correct	9 ms	8180 KB	Output is correct
11	Correct	8 ms	8148 KB	Output is correct
12	Correct	8 ms	8180 KB	Output is correct
13	Correct	9 ms	8064 KB	Output is correct
14	Correct	8 ms	8148 KB	Output is correct
15	Correct	8 ms	8184 KB	Output is correct
16	Correct	8 ms	8192 KB	Output is correct
17	Correct	8 ms	8132 KB	Output is correct
18	Correct	8 ms	8148 KB	Output is correct
19	Correct	9 ms	8148 KB	Output is correct
20	Correct	9 ms	8184 KB	Output is correct
21	Correct	8 ms	8148 KB	Output is correct
22	Correct	8 ms	8176 KB	Output is correct
23	Correct	9 ms	8176 KB	Output is correct
24	Correct	8 ms	8148 KB	Output is correct
25	Correct	8 ms	8148 KB	Output is correct
26	Correct	8 ms	8148 KB	Output is correct
27	Correct	8 ms	8148 KB	Output is correct
28	Correct	7 ms	8148 KB	Output is correct
29	Correct	8 ms	8164 KB	Output is correct
30	Correct	8 ms	8148 KB	Output is correct
31	Correct	8 ms	8164 KB	Output is correct
32	Correct	9 ms	8148 KB	Output is correct
33	Correct	8 ms	8188 KB	Output is correct
34	Correct	8 ms	8148 KB	Output is correct
35	Correct	8 ms	8180 KB	Output is correct
36	Correct	8 ms	8148 KB	Output is correct
37	Correct	8 ms	8660 KB	Output is correct
38	Correct	8 ms	8760 KB	Output is correct
39	Correct	48 ms	10048 KB	Output is correct
40	Correct	70 ms	11212 KB	Output is correct
41	Correct	39 ms	9676 KB	Output is correct
42	Correct	35 ms	9560 KB	Output is correct
43	Correct	28 ms	9164 KB	Output is correct
44	Correct	85 ms	12100 KB	Output is correct
45	Correct	87 ms	11980 KB	Output is correct
46	Correct	86 ms	12096 KB	Output is correct
47	Correct	87 ms	12060 KB	Output is correct
48	Correct	88 ms	12068 KB	Output is correct
49	Correct	126 ms	15924 KB	Output is correct
50	Correct	130 ms	15956 KB	Output is correct
51	Correct	133 ms	16064 KB	Output is correct
52	Correct	130 ms	15976 KB	Output is correct
53	Correct	127 ms	15928 KB	Output is correct
54	Correct	133 ms	15924 KB	Output is correct
55	Correct	171 ms	15948 KB	Output is correct
56	Correct	165 ms	15908 KB	Output is correct
57	Correct	170 ms	15948 KB	Output is correct
58	Correct	156 ms	15960 KB	Output is correct
59	Correct	159 ms	15972 KB	Output is correct
60	Correct	163 ms	15964 KB	Output is correct
61	Correct	155 ms	15948 KB	Output is correct
62	Correct	157 ms	15956 KB	Output is correct

Submission #573409

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