oj.uz

Submission #476949

# Submission time Handle Problem Language Result Execution time Memory
476949 2021-09-29T09:43:09 Z MetalPower Diversity (CEOI21_diversity) C++14
38 / 100
 126 ms 4700 KB 
#include <bits/stdc++.h>
using namespace std;

#define ll long long
#define pii pair<int, int>
#define fi first
#define se second

const int MX = 3e5 + 10;
const int SQ = 605;

struct queries{
	int l, r, id;

	bool operator < (queries& b) const{
		int _a = l / SQ, _b = b.l / SQ;
		return (_a < _b) || (_a == _b && r < b.r);
	}
};

vector<queries> q;

int N, Q, arr[MX];
int cnt[MX]; // number of values with freq i
int freq[MX];

ll ans[MX];

void upd(int p, int v){
	if(freq[p] < SQ) cnt[freq[p]]--;
	freq[p] += v;
	if(freq[p] < SQ) cnt[freq[p]]++;
}

vector<int> lg;
vector<pii> val;

void init(){

	val.clear();

	for(int j = 1; j < SQ; j++)
		val.push_back({j, cnt[j]});

	vector<int> temp;

	for(auto j : lg){
		if(freq[j] >= SQ){
			cnt[freq[j]]++;
			temp.push_back(freq[j]);
		}
	}

	sort(temp.begin(), temp.end());
	temp.resize(unique(temp.begin(), temp.end()) - temp.begin());

	for(auto j : temp){
		val.push_back({j, cnt[j]});
		cnt[j] = 0;
	}
}

ll sum(int a, int r, int n){ // a^2 + (a + r)^2 + (a + 2r)^2 + ... (a + nr)^2
	if(n < 0) return 0;
	return 1ll * a * a * (n + 1) + a * r * n * (n + 1) + r * r * (n * (n + 1) * (n + n + 1) / 6);
}

ll solve(){

	int st = 1, _N = 0, _K = 0;
	int suml = 0, sumr = 0; 

	ll curr = 0;

	for(auto p : val){
		_N += p.fi * p.se;
		_K += p.se;
	}

	for(auto p : val){

		int l = (p.se + st) >> 1;
		int r = (p.se + 1 - st) >> 1;

		curr += sum(suml, p.fi, l - 1);
		curr += sum(_N - suml - p.fi, -p.fi, l - 1);

		curr += sum(sumr, p.fi, r - 1);
		curr += sum(_N - sumr - p.fi, -p.fi, r - 1);

		suml += p.fi * l;
		sumr += p.fi * r;

		st ^= p.se & 1;
	}

	return (1ll * _K * _N * (_N + 1) - 1ll * _N * (_K - 1) - curr) >> 1;
}

void answer(){

	int l = 0, r = -1;

	for(auto p : q){
		while(r < p.r) upd(arr[++r], 1);
		while(r > p.r) upd(arr[r--], -1);
		while(l < p.l) upd(arr[l++], -1);
		while(l > p.l) upd(arr[--l], 1);
		init();
		ans[p.id] = solve();
	}
}

int tfreq[MX];

int main(){
	scanf("%d %d", &N, &Q);

	vector<int> cd;

	for(int i = 0; i < N; i++){
		cin >> arr[i];
		cd.push_back(arr[i]);
	}

	sort(cd.begin(), cd.end());
	cd.resize(unique(cd.begin(), cd.end()) - cd.begin());

	for(int i = 0; i < N; i++){
		arr[i] = lower_bound(cd.begin(), cd.end(), arr[i]) - cd.begin();
		tfreq[arr[i]]++;
	}

	for(int i = 0; i < N; i++){
		if(tfreq[i] >= SQ) 
			lg.push_back(i);
	}

	for(int i = 0; i < Q; i++){
		int l, r; cin >> l >> r;
		l--; r--;
		q.push_back({l, r, i});
	}

	sort(q.begin(), q.end());

	answer();

	for(int i = 0; i < Q; i++)
		cout << ans[i] << '\n';
}

Compilation message

diversity.cpp: In function 'int main()':
diversity.cpp:117:7: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
  117 |  scanf("%d %d", &N, &Q);
      |  ~~~~~^~~~~~~~~~~~~~~~~

Subtask #1
4.0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 332 KB Output is correct
2 Correct 0 ms 332 KB Output is correct
3 Correct 0 ms 332 KB Output is correct
4 Correct 0 ms 332 KB Output is correct
5 Correct 1 ms 332 KB Output is correct
6 Correct 1 ms 332 KB Output is correct
7 Correct 0 ms 332 KB Output is correct
8 Correct 0 ms 332 KB Output is correct
9 Correct 1 ms 332 KB Output is correct
10 Correct 0 ms 332 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 332 KB Output is correct
2 Correct 1 ms 332 KB Output is correct
3 Correct 3 ms 460 KB Output is correct
4 Correct 22 ms 1228 KB Output is correct
5 Correct 48 ms 2396 KB Output is correct
6 Correct 70 ms 4084 KB Output is correct
7 Correct 64 ms 4100 KB Output is correct
8 Correct 67 ms 4020 KB Output is correct
9 Correct 92 ms 4172 KB Output is correct
10 Correct 89 ms 4136 KB Output is correct
11 Correct 71 ms 4152 KB Output is correct
12 Correct 67 ms 4068 KB Output is correct
13 Correct 73 ms 4132 KB Output is correct
14 Correct 67 ms 4024 KB Output is correct
15 Correct 78 ms 4032 KB Output is correct

Subtask #3
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 332 KB Output is correct
2 Correct 1 ms 332 KB Output is correct
3 Correct 3 ms 460 KB Output is correct
4 Correct 22 ms 1228 KB Output is correct
5 Correct 48 ms 2396 KB Output is correct
6 Correct 70 ms 4084 KB Output is correct
7 Correct 64 ms 4100 KB Output is correct
8 Correct 67 ms 4020 KB Output is correct
9 Correct 92 ms 4172 KB Output is correct
10 Correct 89 ms 4136 KB Output is correct
11 Correct 71 ms 4152 KB Output is correct
12 Correct 67 ms 4068 KB Output is correct
13 Correct 73 ms 4132 KB Output is correct
14 Correct 67 ms 4024 KB Output is correct
15 Correct 78 ms 4032 KB Output is correct
16 Correct 1 ms 332 KB Output is correct
17 Correct 1 ms 332 KB Output is correct
18 Correct 3 ms 372 KB Output is correct
19 Correct 24 ms 1504 KB Output is correct
20 Correct 52 ms 2520 KB Output is correct
21 Correct 76 ms 4280 KB Output is correct
22 Correct 76 ms 4256 KB Output is correct
23 Correct 84 ms 4236 KB Output is correct
24 Correct 97 ms 4280 KB Output is correct
25 Correct 72 ms 4272 KB Output is correct
26 Correct 97 ms 4252 KB Output is correct
27 Correct 87 ms 4280 KB Output is correct
28 Correct 72 ms 4204 KB Output is correct
29 Correct 82 ms 4168 KB Output is correct
30 Correct 73 ms 4280 KB Output is correct

Subtask #4
16.0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 332 KB Output is correct
2 Correct 1 ms 332 KB Output is correct
3 Correct 3 ms 460 KB Output is correct
4 Correct 22 ms 1228 KB Output is correct
5 Correct 48 ms 2396 KB Output is correct
6 Correct 70 ms 4084 KB Output is correct
7 Correct 64 ms 4100 KB Output is correct
8 Correct 67 ms 4020 KB Output is correct
9 Correct 92 ms 4172 KB Output is correct
10 Correct 89 ms 4136 KB Output is correct
11 Correct 71 ms 4152 KB Output is correct
12 Correct 67 ms 4068 KB Output is correct
13 Correct 73 ms 4132 KB Output is correct
14 Correct 67 ms 4024 KB Output is correct
15 Correct 78 ms 4032 KB Output is correct
16 Correct 1 ms 332 KB Output is correct
17 Correct 1 ms 332 KB Output is correct
18 Correct 3 ms 372 KB Output is correct
19 Correct 24 ms 1504 KB Output is correct
20 Correct 52 ms 2520 KB Output is correct
21 Correct 76 ms 4280 KB Output is correct
22 Correct 76 ms 4256 KB Output is correct
23 Correct 84 ms 4236 KB Output is correct
24 Correct 97 ms 4280 KB Output is correct
25 Correct 72 ms 4272 KB Output is correct
26 Correct 97 ms 4252 KB Output is correct
27 Correct 87 ms 4280 KB Output is correct
28 Correct 72 ms 4204 KB Output is correct
29 Correct 82 ms 4168 KB Output is correct
30 Correct 73 ms 4280 KB Output is correct
31 Correct 1 ms 332 KB Output is correct
32 Correct 1 ms 332 KB Output is correct
33 Correct 1 ms 332 KB Output is correct
34 Correct 3 ms 372 KB Output is correct
35 Correct 4 ms 460 KB Output is correct
36 Correct 4 ms 460 KB Output is correct
37 Correct 18 ms 940 KB Output is correct
38 Correct 21 ms 1032 KB Output is correct
39 Correct 36 ms 1596 KB Output is correct
40 Correct 80 ms 2732 KB Output is correct
41 Correct 109 ms 4560 KB Output is correct
42 Correct 112 ms 4536 KB Output is correct
43 Correct 107 ms 4532 KB Output is correct
44 Correct 126 ms 4600 KB Output is correct
45 Correct 110 ms 4592 KB Output is correct
46 Correct 111 ms 4524 KB Output is correct
47 Correct 108 ms 4592 KB Output is correct
48 Correct 107 ms 4632 KB Output is correct
49 Correct 116 ms 4528 KB Output is correct
50 Correct 111 ms 4536 KB Output is correct
51 Correct 107 ms 4604 KB Output is correct
52 Correct 122 ms 4640 KB Output is correct
53 Correct 106 ms 4628 KB Output is correct
54 Correct 111 ms 4532 KB Output is correct
55 Correct 111 ms 4632 KB Output is correct
56 Correct 111 ms 4616 KB Output is correct
57 Correct 113 ms 4664 KB Output is correct
58 Correct 116 ms 4648 KB Output is correct
59 Correct 110 ms 4700 KB Output is correct
60 Correct 114 ms 4588 KB Output is correct

Subtask #5
0 / 26.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 332 KB Output is correct
2 Correct 0 ms 332 KB Output is correct
3 Correct 0 ms 332 KB Output is correct
4 Correct 0 ms 332 KB Output is correct
5 Correct 1 ms 332 KB Output is correct
6 Correct 1 ms 332 KB Output is correct
7 Correct 0 ms 332 KB Output is correct
8 Correct 0 ms 332 KB Output is correct
9 Correct 1 ms 332 KB Output is correct
10 Correct 0 ms 332 KB Output is correct
11 Correct 0 ms 332 KB Output is correct
12 Correct 1 ms 332 KB Output is correct
13 Correct 3 ms 460 KB Output is correct
14 Correct 22 ms 1228 KB Output is correct
15 Correct 48 ms 2396 KB Output is correct
16 Correct 70 ms 4084 KB Output is correct
17 Correct 64 ms 4100 KB Output is correct
18 Correct 67 ms 4020 KB Output is correct
19 Correct 92 ms 4172 KB Output is correct
20 Correct 89 ms 4136 KB Output is correct
21 Correct 71 ms 4152 KB Output is correct
22 Correct 67 ms 4068 KB Output is correct
23 Correct 73 ms 4132 KB Output is correct
24 Correct 67 ms 4024 KB Output is correct
25 Correct 78 ms 4032 KB Output is correct
26 Correct 1 ms 332 KB Output is correct
27 Correct 1 ms 332 KB Output is correct
28 Correct 3 ms 372 KB Output is correct
29 Correct 24 ms 1504 KB Output is correct
30 Correct 52 ms 2520 KB Output is correct
31 Correct 76 ms 4280 KB Output is correct
32 Correct 76 ms 4256 KB Output is correct
33 Correct 84 ms 4236 KB Output is correct
34 Correct 97 ms 4280 KB Output is correct
35 Correct 72 ms 4272 KB Output is correct
36 Correct 97 ms 4252 KB Output is correct
37 Correct 87 ms 4280 KB Output is correct
38 Correct 72 ms 4204 KB Output is correct
39 Correct 82 ms 4168 KB Output is correct
40 Correct 73 ms 4280 KB Output is correct
41 Correct 1 ms 332 KB Output is correct
42 Correct 1 ms 332 KB Output is correct
43 Correct 1 ms 332 KB Output is correct
44 Correct 3 ms 372 KB Output is correct
45 Correct 4 ms 460 KB Output is correct
46 Correct 4 ms 460 KB Output is correct
47 Correct 18 ms 940 KB Output is correct
48 Correct 21 ms 1032 KB Output is correct
49 Correct 36 ms 1596 KB Output is correct
50 Correct 80 ms 2732 KB Output is correct
51 Correct 109 ms 4560 KB Output is correct
52 Correct 112 ms 4536 KB Output is correct
53 Correct 107 ms 4532 KB Output is correct
54 Correct 126 ms 4600 KB Output is correct
55 Correct 110 ms 4592 KB Output is correct
56 Correct 111 ms 4524 KB Output is correct
57 Correct 108 ms 4592 KB Output is correct
58 Correct 107 ms 4632 KB Output is correct
59 Correct 116 ms 4528 KB Output is correct
60 Correct 111 ms 4536 KB Output is correct
61 Correct 107 ms 4604 KB Output is correct
62 Correct 122 ms 4640 KB Output is correct
63 Correct 106 ms 4628 KB Output is correct
64 Correct 111 ms 4532 KB Output is correct
65 Correct 111 ms 4632 KB Output is correct
66 Correct 111 ms 4616 KB Output is correct
67 Correct 113 ms 4664 KB Output is correct
68 Correct 116 ms 4648 KB Output is correct
69 Correct 110 ms 4700 KB Output is correct
70 Correct 114 ms 4588 KB Output is correct
71 Correct 20 ms 972 KB Output is correct
72 Correct 21 ms 1052 KB Output is correct
73 Correct 22 ms 972 KB Output is correct
74 Correct 21 ms 1040 KB Output is correct
75 Correct 20 ms 1040 KB Output is correct
76 Incorrect 44 ms 1640 KB Output isn't correct
77 Halted 0 ms 0 KB -

Subtask #6
0 / 36.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 332 KB Output is correct
2 Correct 0 ms 332 KB Output is correct
3 Correct 0 ms 332 KB Output is correct
4 Correct 0 ms 332 KB Output is correct
5 Correct 1 ms 332 KB Output is correct
6 Correct 1 ms 332 KB Output is correct
7 Correct 0 ms 332 KB Output is correct
8 Correct 0 ms 332 KB Output is correct
9 Correct 1 ms 332 KB Output is correct
10 Correct 0 ms 332 KB Output is correct
11 Correct 0 ms 332 KB Output is correct
12 Correct 1 ms 332 KB Output is correct
13 Correct 3 ms 460 KB Output is correct
14 Correct 22 ms 1228 KB Output is correct
15 Correct 48 ms 2396 KB Output is correct
16 Correct 70 ms 4084 KB Output is correct
17 Correct 64 ms 4100 KB Output is correct
18 Correct 67 ms 4020 KB Output is correct
19 Correct 92 ms 4172 KB Output is correct
20 Correct 89 ms 4136 KB Output is correct
21 Correct 71 ms 4152 KB Output is correct
22 Correct 67 ms 4068 KB Output is correct
23 Correct 73 ms 4132 KB Output is correct
24 Correct 67 ms 4024 KB Output is correct
25 Correct 78 ms 4032 KB Output is correct
26 Correct 1 ms 332 KB Output is correct
27 Correct 1 ms 332 KB Output is correct
28 Correct 3 ms 372 KB Output is correct
29 Correct 24 ms 1504 KB Output is correct
30 Correct 52 ms 2520 KB Output is correct
31 Correct 76 ms 4280 KB Output is correct
32 Correct 76 ms 4256 KB Output is correct
33 Correct 84 ms 4236 KB Output is correct
34 Correct 97 ms 4280 KB Output is correct
35 Correct 72 ms 4272 KB Output is correct
36 Correct 97 ms 4252 KB Output is correct
37 Correct 87 ms 4280 KB Output is correct
38 Correct 72 ms 4204 KB Output is correct
39 Correct 82 ms 4168 KB Output is correct
40 Correct 73 ms 4280 KB Output is correct
41 Correct 1 ms 332 KB Output is correct
42 Correct 1 ms 332 KB Output is correct
43 Correct 1 ms 332 KB Output is correct
44 Correct 3 ms 372 KB Output is correct
45 Correct 4 ms 460 KB Output is correct
46 Correct 4 ms 460 KB Output is correct
47 Correct 18 ms 940 KB Output is correct
48 Correct 21 ms 1032 KB Output is correct
49 Correct 36 ms 1596 KB Output is correct
50 Correct 80 ms 2732 KB Output is correct
51 Correct 109 ms 4560 KB Output is correct
52 Correct 112 ms 4536 KB Output is correct
53 Correct 107 ms 4532 KB Output is correct
54 Correct 126 ms 4600 KB Output is correct
55 Correct 110 ms 4592 KB Output is correct
56 Correct 111 ms 4524 KB Output is correct
57 Correct 108 ms 4592 KB Output is correct
58 Correct 107 ms 4632 KB Output is correct
59 Correct 116 ms 4528 KB Output is correct
60 Correct 111 ms 4536 KB Output is correct
61 Correct 107 ms 4604 KB Output is correct
62 Correct 122 ms 4640 KB Output is correct
63 Correct 106 ms 4628 KB Output is correct
64 Correct 111 ms 4532 KB Output is correct
65 Correct 111 ms 4632 KB Output is correct
66 Correct 111 ms 4616 KB Output is correct
67 Correct 113 ms 4664 KB Output is correct
68 Correct 116 ms 4648 KB Output is correct
69 Correct 110 ms 4700 KB Output is correct
70 Correct 114 ms 4588 KB Output is correct
71 Correct 20 ms 972 KB Output is correct
72 Correct 21 ms 1052 KB Output is correct
73 Correct 22 ms 972 KB Output is correct
74 Correct 21 ms 1040 KB Output is correct
75 Correct 20 ms 1040 KB Output is correct
76 Incorrect 44 ms 1640 KB Output isn't correct
77 Halted 0 ms 0 KB -