Submission #667055

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
667055	2022-11-30T09:21:11 Z	Kaztaev_Alisher	Money (IZhO17_money)	C++17	45 / 100	189 ms	22824 KB

money

//#pragma GCC optomize ("Ofast")
//#pragma GCC optomize ("unroll-loops")
//#pragma GCC target ("avx,avx2,fma")
 
#include <bits/stdc++.h>
#define F first
#define S second
#define pb push_back
#define sz size
#define cl clear
#define ins insert
#define ers erase
#define pii pair < int , int >
#define pll pair< long long  , long long >
#define all(x) x.begin() , x.end()
#define ios ios_base::sync_with_stdio(0);cin.tie(0);cout.tie(0);
#define file(s) if (fopen(s".in", "r")) freopen(s".in", "r", stdin), freopen(s".out", "w", stdout)
#define tostr(x) to_string(x)
#define tonum(s) atoi(s.c_str())
#define seon(x) setprecision(x)
#define bpop(x) __builtin_popcount(x)
#define deb(x) cerr << #x  << " = " << x << endl;
 
typedef long long ll;
typedef unsigned long long ull;
typedef double db;
typedef long double ldb;
const double PI = 3.14159265;
 
const ll N = 1e6+5;
const ll mod = 1e9+7;
const ll inf = 1e9;
const ll INF = 1e18;
 
using namespace std;
 
ll a[N] , l[N] , r[N] , cnt[N];
pii p[N];
void solve(){
	int n;
	cin >> n;
	for(int i = 1; i <= n; i++){
		cin >> a[i];
		p[i] = {a[i] , i};
		cnt[a[i]]++;
	}
	sort(p+1,p+1+n);
	for(int i = 1; i <= n; i++){
		if(a[p[i-1].S] != a[p[i].S]) l[a[p[i].S]] = a[p[i-1].S];
		if(a[p[i+1].S] != a[p[i].S]) r[a[p[i].S]] = a[p[i+1].S];
	}
	ll ans = 0;
	for(int i = n; i >= 1; i--){
		int j = i , b = a[i];
		bool ok = 0;
		while(j-1 >= 1){
			if(a[j-1] == l[b] && (b == a[i] || cnt[b] == 1)) b = l[b];
			else if(a[j-1] != b) break; 
			cnt[a[j]]--;
			j--;
		}
		cnt[a[j]]--;
		if(cnt[a[i]] == 0 && cnt[a[j]] == 0) r[l[a[j]]] = r[a[i]] , l[r[a[i]]] = l[a[j]];
		else if(cnt[a[i]] == 0) r[a[j]] = r[a[i]];
		else if(cnt[a[j]] == 0) l[a[i]] = l[a[j]];
//		cout << i <<" " << j <<"\n";
		i = j;
		ans++;
	}
	cout << ans << "\n";
}
signed main(){
	ios;
	solve();
	return 0;
}
/*
 
8
710010 
388188 
309143 
388188 710010 
388188 710010 
484815
*/

Compilation message

money.cpp: In function 'void solve()':
money.cpp:55:8: warning: unused variable 'ok' [-Wunused-variable]
   55 |   bool ok = 0;
      |        ^~

Subtask #1
9.0 / 9.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	0 ms	340 KB	Output is correct
2	Correct	0 ms	324 KB	Output is correct
3	Correct	0 ms	340 KB	Output is correct
4	Correct	1 ms	324 KB	Output is correct
5	Correct	1 ms	328 KB	Output is correct
6	Correct	1 ms	328 KB	Output is correct
7	Correct	1 ms	340 KB	Output is correct
8	Correct	1 ms	328 KB	Output is correct
9	Correct	1 ms	340 KB	Output is correct
10	Correct	1 ms	340 KB	Output is correct
11	Correct	1 ms	328 KB	Output is correct
12	Correct	1 ms	340 KB	Output is correct
13	Correct	0 ms	340 KB	Output is correct
14	Correct	0 ms	340 KB	Output is correct
15	Correct	0 ms	340 KB	Output is correct
16	Correct	0 ms	452 KB	Output is correct

Subtask #2
16.0 / 16.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	0 ms	340 KB	Output is correct
2	Correct	0 ms	324 KB	Output is correct
3	Correct	0 ms	340 KB	Output is correct
4	Correct	1 ms	324 KB	Output is correct
5	Correct	1 ms	328 KB	Output is correct
6	Correct	1 ms	328 KB	Output is correct
7	Correct	1 ms	340 KB	Output is correct
8	Correct	1 ms	328 KB	Output is correct
9	Correct	1 ms	340 KB	Output is correct
10	Correct	1 ms	340 KB	Output is correct
11	Correct	1 ms	328 KB	Output is correct
12	Correct	1 ms	340 KB	Output is correct
13	Correct	0 ms	340 KB	Output is correct
14	Correct	0 ms	340 KB	Output is correct
15	Correct	0 ms	340 KB	Output is correct
16	Correct	0 ms	452 KB	Output is correct
17	Correct	1 ms	328 KB	Output is correct
18	Correct	1 ms	340 KB	Output is correct
19	Correct	1 ms	384 KB	Output is correct
20	Correct	1 ms	328 KB	Output is correct
21	Correct	1 ms	340 KB	Output is correct
22	Correct	1 ms	340 KB	Output is correct
23	Correct	1 ms	332 KB	Output is correct
24	Correct	1 ms	340 KB	Output is correct
25	Correct	1 ms	468 KB	Output is correct
26	Correct	1 ms	468 KB	Output is correct

Subtask #3
20.0 / 20.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	0 ms	340 KB	Output is correct
2	Correct	0 ms	324 KB	Output is correct
3	Correct	0 ms	340 KB	Output is correct
4	Correct	1 ms	324 KB	Output is correct
5	Correct	1 ms	328 KB	Output is correct
6	Correct	1 ms	328 KB	Output is correct
7	Correct	1 ms	340 KB	Output is correct
8	Correct	1 ms	328 KB	Output is correct
9	Correct	1 ms	340 KB	Output is correct
10	Correct	1 ms	340 KB	Output is correct
11	Correct	1 ms	328 KB	Output is correct
12	Correct	1 ms	340 KB	Output is correct
13	Correct	0 ms	340 KB	Output is correct
14	Correct	0 ms	340 KB	Output is correct
15	Correct	0 ms	340 KB	Output is correct
16	Correct	0 ms	452 KB	Output is correct
17	Correct	1 ms	328 KB	Output is correct
18	Correct	1 ms	340 KB	Output is correct
19	Correct	1 ms	384 KB	Output is correct
20	Correct	1 ms	328 KB	Output is correct
21	Correct	1 ms	340 KB	Output is correct
22	Correct	1 ms	340 KB	Output is correct
23	Correct	1 ms	332 KB	Output is correct
24	Correct	1 ms	340 KB	Output is correct
25	Correct	1 ms	468 KB	Output is correct
26	Correct	1 ms	468 KB	Output is correct
27	Correct	1 ms	340 KB	Output is correct
28	Correct	1 ms	328 KB	Output is correct
29	Correct	1 ms	340 KB	Output is correct
30	Correct	1 ms	340 KB	Output is correct
31	Correct	1 ms	340 KB	Output is correct
32	Correct	1 ms	456 KB	Output is correct
33	Correct	1 ms	340 KB	Output is correct
34	Correct	1 ms	468 KB	Output is correct
35	Correct	1 ms	328 KB	Output is correct
36	Correct	1 ms	340 KB	Output is correct
37	Correct	1 ms	2132 KB	Output is correct
38	Correct	1 ms	2132 KB	Output is correct

Subtask #4
0 / 55.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	0 ms	340 KB	Output is correct
2	Correct	0 ms	324 KB	Output is correct
3	Correct	0 ms	340 KB	Output is correct
4	Correct	1 ms	324 KB	Output is correct
5	Correct	1 ms	328 KB	Output is correct
6	Correct	1 ms	328 KB	Output is correct
7	Correct	1 ms	340 KB	Output is correct
8	Correct	1 ms	328 KB	Output is correct
9	Correct	1 ms	340 KB	Output is correct
10	Correct	1 ms	340 KB	Output is correct
11	Correct	1 ms	328 KB	Output is correct
12	Correct	1 ms	340 KB	Output is correct
13	Correct	0 ms	340 KB	Output is correct
14	Correct	0 ms	340 KB	Output is correct
15	Correct	0 ms	340 KB	Output is correct
16	Correct	0 ms	452 KB	Output is correct
17	Correct	1 ms	328 KB	Output is correct
18	Correct	1 ms	340 KB	Output is correct
19	Correct	1 ms	384 KB	Output is correct
20	Correct	1 ms	328 KB	Output is correct
21	Correct	1 ms	340 KB	Output is correct
22	Correct	1 ms	340 KB	Output is correct
23	Correct	1 ms	332 KB	Output is correct
24	Correct	1 ms	340 KB	Output is correct
25	Correct	1 ms	468 KB	Output is correct
26	Correct	1 ms	468 KB	Output is correct
27	Correct	1 ms	340 KB	Output is correct
28	Correct	1 ms	328 KB	Output is correct
29	Correct	1 ms	340 KB	Output is correct
30	Correct	1 ms	340 KB	Output is correct
31	Correct	1 ms	340 KB	Output is correct
32	Correct	1 ms	456 KB	Output is correct
33	Correct	1 ms	340 KB	Output is correct
34	Correct	1 ms	468 KB	Output is correct
35	Correct	1 ms	328 KB	Output is correct
36	Correct	1 ms	340 KB	Output is correct
37	Correct	1 ms	2132 KB	Output is correct
38	Correct	1 ms	2132 KB	Output is correct
39	Correct	95 ms	11044 KB	Output is correct
40	Correct	146 ms	18156 KB	Output is correct
41	Correct	70 ms	8992 KB	Output is correct
42	Correct	65 ms	8140 KB	Output is correct
43	Correct	48 ms	6056 KB	Output is correct
44	Incorrect	189 ms	22824 KB	Output isn't correct
45	Halted	0 ms	0 KB	-

Submission #667055

Compilation message

Subtask #1 9.0 / 9.0

Subtask #2 16.0 / 16.0

Subtask #3 20.0 / 20.0

Subtask #4 0 / 55.0

Subtask #1
9.0 / 9.0

Subtask #2
16.0 / 16.0

Subtask #3
20.0 / 20.0

Subtask #4
0 / 55.0