oj.uz

Submission #917690

# Submission time Handle Problem Language Result Execution time Memory
917690 2024-01-28T15:03:58 Z KiaRez Candies (JOI18_candies) C++17
100 / 100
 553 ms 31324 KB 
/*
    IN THE NAME OF GOD
*/
#include <bits/stdc++.h>

// #pragma GCC target("avx2,bmi,bmi2,lzcnt,popcnt")
// #pragma GCC optimize("O3")
// #pragma GCC optimize("unroll-loops")

using namespace std;

typedef long long ll;
typedef pair<ll, ll> pll;
typedef pair<int, int> pii;
typedef long double ld;

#define F                                      first
#define S                                      second
#define Mp                                     make_pair
#define pb                                     push_back
#define pf                                     push_front
#define size(x)                                ((ll)x.size())
#define all(x)                                 (x).begin(),(x).end()
#define kill(x)		                           cout << x << '\n', exit(0);
#define fuck(x)                                cout << "(" << #x << " , " << x << ")" << endl
#define endl                                   '\n'

const int N = 1e6+23, lg = 18;
ll Mod = 1e9+7; //998244353;

inline ll MOD(ll a, ll mod=Mod) {a%=mod; (a<0)&&(a+=mod); return a;}
inline ll poww(ll a, ll b, ll mod=Mod) {
    ll ans = 1;
    a=MOD(a, mod);
    while (b) {
        if (b & 1) ans = MOD(ans*a, mod);
        b >>= 1;
        a = MOD(a*a, mod);
    }
    return ans;
}

ll n, a[N], ans;
set<pll> st, rst;
int main () {
	ios_base::sync_with_stdio(false), cin.tie(0);

	cin>>n;
	for(int i=1; i<=n; i++) {
		cin>>a[i];
		st.insert({a[i], i});
		rst.insert({i, a[i]});
	}

	while(size(st) > 0) {
		auto tmp = st.end(); tmp--;
		pll it = (*tmp);
		ans += (it.F);
		cout<<ans<<endl;

		if(size(st) == 1) break;
		if(it.S == (rst.rbegin()->F)) {
			st.erase(it);
			rst.erase({it.S, it.F});
			it = (*rst.rbegin());
			st.erase({it.S, it.F});
			rst.erase(it);
			continue;
		} else if (it.S == (rst.begin()->F)) {
			st.erase(it);
			rst.erase({it.S, it.F});
			it = (*rst.begin());
			st.erase({it.S, it.F});
			rst.erase(it);
			continue;
		}
		auto tmp2 = rst.upper_bound({it.S, it.F});
		auto nxt2 = (*tmp2); tmp2--; tmp2--;
		auto prev2 = (*tmp2);
		ll sztmp = size(rst);
		rst.erase(nxt2);
		rst.erase(prev2);
		rst.erase({it.S, it.F});
		st.erase(it);
		st.erase({nxt2.S, nxt2.F});
		st.erase({prev2.S, prev2.F});

		st.insert({nxt2.S+prev2.S-it.F, it.S});
		rst.insert({it.S, nxt2.S+prev2.S-it.F});
	}

	return 0;
}

Compilation message

candies.cpp: In function 'int main()':
candies.cpp:80:6: warning: unused variable 'sztmp' [-Wunused-variable]
   80 |   ll sztmp = size(rst);
      |      ^~~~~

Subtask #1
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 604 KB Output is correct
2 Correct 2 ms 604 KB Output is correct
3 Correct 2 ms 604 KB Output is correct
4 Correct 2 ms 604 KB Output is correct
5 Correct 2 ms 604 KB Output is correct
6 Correct 2 ms 604 KB Output is correct
7 Correct 2 ms 768 KB Output is correct
8 Correct 2 ms 604 KB Output is correct
9 Correct 2 ms 604 KB Output is correct
10 Correct 2 ms 720 KB Output is correct
11 Correct 3 ms 604 KB Output is correct
12 Correct 2 ms 604 KB Output is correct
13 Correct 2 ms 604 KB Output is correct
14 Correct 2 ms 604 KB Output is correct
15 Correct 2 ms 604 KB Output is correct
16 Correct 2 ms 604 KB Output is correct
17 Correct 2 ms 604 KB Output is correct
18 Correct 2 ms 604 KB Output is correct
19 Correct 2 ms 604 KB Output is correct
20 Correct 2 ms 604 KB Output is correct

Subtask #2
92.0 / 92.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 604 KB Output is correct
2 Correct 2 ms 604 KB Output is correct
3 Correct 2 ms 604 KB Output is correct
4 Correct 2 ms 604 KB Output is correct
5 Correct 2 ms 604 KB Output is correct
6 Correct 2 ms 604 KB Output is correct
7 Correct 2 ms 768 KB Output is correct
8 Correct 2 ms 604 KB Output is correct
9 Correct 2 ms 604 KB Output is correct
10 Correct 2 ms 720 KB Output is correct
11 Correct 3 ms 604 KB Output is correct
12 Correct 2 ms 604 KB Output is correct
13 Correct 2 ms 604 KB Output is correct
14 Correct 2 ms 604 KB Output is correct
15 Correct 2 ms 604 KB Output is correct
16 Correct 2 ms 604 KB Output is correct
17 Correct 2 ms 604 KB Output is correct
18 Correct 2 ms 604 KB Output is correct
19 Correct 2 ms 604 KB Output is correct
20 Correct 2 ms 604 KB Output is correct
21 Correct 553 ms 31108 KB Output is correct
22 Correct 537 ms 31140 KB Output is correct
23 Correct 509 ms 30976 KB Output is correct
24 Correct 229 ms 30860 KB Output is correct
25 Correct 233 ms 30960 KB Output is correct
26 Correct 214 ms 30796 KB Output is correct
27 Correct 228 ms 31120 KB Output is correct
28 Correct 242 ms 31240 KB Output is correct
29 Correct 218 ms 30908 KB Output is correct
30 Correct 245 ms 31148 KB Output is correct
31 Correct 246 ms 30960 KB Output is correct
32 Correct 315 ms 31224 KB Output is correct
33 Correct 321 ms 30844 KB Output is correct
34 Correct 338 ms 31104 KB Output is correct
35 Correct 316 ms 30756 KB Output is correct
36 Correct 451 ms 31188 KB Output is correct
37 Correct 456 ms 30952 KB Output is correct
38 Correct 431 ms 30940 KB Output is correct
39 Correct 201 ms 30908 KB Output is correct
40 Correct 202 ms 30804 KB Output is correct
41 Correct 215 ms 30804 KB Output is correct
42 Correct 238 ms 31320 KB Output is correct
43 Correct 221 ms 31056 KB Output is correct
44 Correct 241 ms 31172 KB Output is correct
45 Correct 251 ms 30956 KB Output is correct
46 Correct 242 ms 31040 KB Output is correct
47 Correct 251 ms 31052 KB Output is correct
48 Correct 365 ms 30716 KB Output is correct
49 Correct 359 ms 31324 KB Output is correct
50 Correct 349 ms 30752 KB Output is correct