답안 #718067

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
718067	2023-04-03T09:30:57 Z	Kalashnikov	Group Photo (JOI21_ho_t3)	C++17	100 / 100	636 ms	67552 KB

Main

#include <bits/stdc++.h>
 
#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 all(a) a.begin() , a.end()
#define F first
#define S second
 
using namespace std;
using ll = long long;
 
const int N = 5000+5 , inf = 2e9 + 7;
const ll INF = 1e18 ,   mod = 1e9+7 , P = 6547;

int dp[N], pos[N], a[N], res[N][N];


int f[N];

int get(int x) {
	int res = 0;
	for(; x > 0; x&=x+1, x--) {
		res += f[x];
	}
	return res;
}

void upd(int pos, int val = 1) {
	for(; pos < N; pos |= pos+1) {
		f[pos] += val;
	}
}

int f1[N], db[N];

int get1(int x) {
	int res = 0;
	for(; x > 0; x&=x+1, x--) {
		res += f1[x];
	}
	return res;
}

void upd1(int pos, int val = 1) {
	for(; pos < N; pos |= pos+1) {
		f1[pos] += val;
	}
}

void solve(int tc) {
	int n;
	cin >> n;
	for(int i = 1; i <= n; i ++) {
		cin >> a[i];
		pos[a[i]] = i;
	}
	for(int r = 1; r <= n; r ++) {
		fill(f1, f1+n+1, 0);
		for(int i = r; i >= 1; i --) {
			db[i] = get1(pos[i]);
			upd1(pos[i]);
		}
		upd(pos[r]);
		for(int l = r; l >= 1; l --) {
			if(l == r) {
				res[l][r] = r-get(pos[r]);
			}
			else {
				res[l][r] = res[l+1][r];
				res[l][r] += r-get(pos[l]);
				res[l][r] -= db[l];
			}
		}
	}
	for(int i = 1; i <= n; i ++) {
		dp[i] = inf;
		for(int j = i; j >= 1; j --) {
			dp[i] = min(dp[i], res[j][i] + dp[j-1]);
		}
	}
	cout << dp[n];
}
/*
*/
main() {
    ios;
    int tt = 1 , tc = 0;
    // cin >> tt;
    while(tt --) {
        solve(++tc);
    }
    return 0;
}

Compilation message

Main.cpp:85:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
   85 | main() {
      | ^~~~

Subtask #1
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	340 KB	Output is correct
2	Correct	1 ms	340 KB	Output is correct
3	Correct	1 ms	324 KB	Output is correct
4	Correct	1 ms	340 KB	Output is correct
5	Correct	1 ms	340 KB	Output is correct
6	Correct	1 ms	340 KB	Output is correct
7	Correct	1 ms	340 KB	Output is correct
8	Correct	1 ms	332 KB	Output is correct
9	Correct	1 ms	340 KB	Output is correct
10	Correct	1 ms	328 KB	Output is correct

Subtask #2
7.0 / 7.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	340 KB	Output is correct
2	Correct	1 ms	340 KB	Output is correct
3	Correct	1 ms	324 KB	Output is correct
4	Correct	1 ms	340 KB	Output is correct
5	Correct	1 ms	340 KB	Output is correct
6	Correct	1 ms	340 KB	Output is correct
7	Correct	1 ms	340 KB	Output is correct
8	Correct	1 ms	332 KB	Output is correct
9	Correct	1 ms	340 KB	Output is correct
10	Correct	1 ms	328 KB	Output is correct
11	Correct	1 ms	340 KB	Output is correct
12	Correct	1 ms	340 KB	Output is correct
13	Correct	1 ms	340 KB	Output is correct
14	Correct	1 ms	340 KB	Output is correct
15	Correct	1 ms	340 KB	Output is correct
16	Correct	1 ms	340 KB	Output is correct
17	Correct	1 ms	340 KB	Output is correct
18	Correct	1 ms	340 KB	Output is correct
19	Correct	1 ms	340 KB	Output is correct
20	Correct	1 ms	340 KB	Output is correct

Subtask #3
32.0 / 32.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	340 KB	Output is correct
2	Correct	1 ms	340 KB	Output is correct
3	Correct	1 ms	324 KB	Output is correct
4	Correct	1 ms	340 KB	Output is correct
5	Correct	1 ms	340 KB	Output is correct
6	Correct	1 ms	340 KB	Output is correct
7	Correct	1 ms	340 KB	Output is correct
8	Correct	1 ms	332 KB	Output is correct
9	Correct	1 ms	340 KB	Output is correct
10	Correct	1 ms	328 KB	Output is correct
11	Correct	1 ms	340 KB	Output is correct
12	Correct	1 ms	340 KB	Output is correct
13	Correct	1 ms	340 KB	Output is correct
14	Correct	1 ms	340 KB	Output is correct
15	Correct	1 ms	340 KB	Output is correct
16	Correct	1 ms	340 KB	Output is correct
17	Correct	1 ms	340 KB	Output is correct
18	Correct	1 ms	340 KB	Output is correct
19	Correct	1 ms	340 KB	Output is correct
20	Correct	1 ms	340 KB	Output is correct
21	Correct	1 ms	1220 KB	Output is correct
22	Correct	1 ms	1236 KB	Output is correct
23	Correct	1 ms	1236 KB	Output is correct
24	Correct	2 ms	1236 KB	Output is correct
25	Correct	1 ms	1236 KB	Output is correct
26	Correct	1 ms	1224 KB	Output is correct
27	Correct	1 ms	1220 KB	Output is correct
28	Correct	2 ms	1236 KB	Output is correct
29	Correct	1 ms	1236 KB	Output is correct
30	Correct	2 ms	1220 KB	Output is correct

Subtask #4
20.0 / 20.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	340 KB	Output is correct
2	Correct	1 ms	340 KB	Output is correct
3	Correct	1 ms	324 KB	Output is correct
4	Correct	1 ms	340 KB	Output is correct
5	Correct	1 ms	340 KB	Output is correct
6	Correct	1 ms	340 KB	Output is correct
7	Correct	1 ms	340 KB	Output is correct
8	Correct	1 ms	332 KB	Output is correct
9	Correct	1 ms	340 KB	Output is correct
10	Correct	1 ms	328 KB	Output is correct
11	Correct	1 ms	340 KB	Output is correct
12	Correct	1 ms	340 KB	Output is correct
13	Correct	1 ms	340 KB	Output is correct
14	Correct	1 ms	340 KB	Output is correct
15	Correct	1 ms	340 KB	Output is correct
16	Correct	1 ms	340 KB	Output is correct
17	Correct	1 ms	340 KB	Output is correct
18	Correct	1 ms	340 KB	Output is correct
19	Correct	1 ms	340 KB	Output is correct
20	Correct	1 ms	340 KB	Output is correct
21	Correct	1 ms	1220 KB	Output is correct
22	Correct	1 ms	1236 KB	Output is correct
23	Correct	1 ms	1236 KB	Output is correct
24	Correct	2 ms	1236 KB	Output is correct
25	Correct	1 ms	1236 KB	Output is correct
26	Correct	1 ms	1224 KB	Output is correct
27	Correct	1 ms	1220 KB	Output is correct
28	Correct	2 ms	1236 KB	Output is correct
29	Correct	1 ms	1236 KB	Output is correct
30	Correct	2 ms	1220 KB	Output is correct
31	Correct	12 ms	4748 KB	Output is correct
32	Correct	12 ms	4820 KB	Output is correct
33	Correct	12 ms	4860 KB	Output is correct
34	Correct	13 ms	4820 KB	Output is correct
35	Correct	13 ms	4820 KB	Output is correct
36	Correct	15 ms	4808 KB	Output is correct
37	Correct	13 ms	4820 KB	Output is correct
38	Correct	13 ms	4808 KB	Output is correct
39	Correct	16 ms	4820 KB	Output is correct
40	Correct	13 ms	4880 KB	Output is correct

Subtask #5
36.0 / 36.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	340 KB	Output is correct
2	Correct	1 ms	340 KB	Output is correct
3	Correct	1 ms	324 KB	Output is correct
4	Correct	1 ms	340 KB	Output is correct
5	Correct	1 ms	340 KB	Output is correct
6	Correct	1 ms	340 KB	Output is correct
7	Correct	1 ms	340 KB	Output is correct
8	Correct	1 ms	332 KB	Output is correct
9	Correct	1 ms	340 KB	Output is correct
10	Correct	1 ms	328 KB	Output is correct
11	Correct	1 ms	340 KB	Output is correct
12	Correct	1 ms	340 KB	Output is correct
13	Correct	1 ms	340 KB	Output is correct
14	Correct	1 ms	340 KB	Output is correct
15	Correct	1 ms	340 KB	Output is correct
16	Correct	1 ms	340 KB	Output is correct
17	Correct	1 ms	340 KB	Output is correct
18	Correct	1 ms	340 KB	Output is correct
19	Correct	1 ms	340 KB	Output is correct
20	Correct	1 ms	340 KB	Output is correct
21	Correct	1 ms	1220 KB	Output is correct
22	Correct	1 ms	1236 KB	Output is correct
23	Correct	1 ms	1236 KB	Output is correct
24	Correct	2 ms	1236 KB	Output is correct
25	Correct	1 ms	1236 KB	Output is correct
26	Correct	1 ms	1224 KB	Output is correct
27	Correct	1 ms	1220 KB	Output is correct
28	Correct	2 ms	1236 KB	Output is correct
29	Correct	1 ms	1236 KB	Output is correct
30	Correct	2 ms	1220 KB	Output is correct
31	Correct	12 ms	4748 KB	Output is correct
32	Correct	12 ms	4820 KB	Output is correct
33	Correct	12 ms	4860 KB	Output is correct
34	Correct	13 ms	4820 KB	Output is correct
35	Correct	13 ms	4820 KB	Output is correct
36	Correct	15 ms	4808 KB	Output is correct
37	Correct	13 ms	4820 KB	Output is correct
38	Correct	13 ms	4808 KB	Output is correct
39	Correct	16 ms	4820 KB	Output is correct
40	Correct	13 ms	4880 KB	Output is correct
41	Correct	609 ms	67336 KB	Output is correct
42	Correct	624 ms	67432 KB	Output is correct
43	Correct	593 ms	67512 KB	Output is correct
44	Correct	603 ms	67308 KB	Output is correct
45	Correct	616 ms	67400 KB	Output is correct
46	Correct	621 ms	67432 KB	Output is correct
47	Correct	607 ms	67436 KB	Output is correct
48	Correct	623 ms	67468 KB	Output is correct
49	Correct	618 ms	67552 KB	Output is correct
50	Correct	610 ms	67516 KB	Output is correct
51	Correct	622 ms	67452 KB	Output is correct
52	Correct	607 ms	67508 KB	Output is correct
53	Correct	630 ms	67420 KB	Output is correct
54	Correct	636 ms	67496 KB	Output is correct
55	Correct	630 ms	67316 KB	Output is correct

답안 #718067

Compilation message

Subtask #1 5.0 / 5.0

Subtask #2 7.0 / 7.0

Subtask #3 32.0 / 32.0

Subtask #4 20.0 / 20.0

Subtask #5 36.0 / 36.0

Subtask #1
5.0 / 5.0

Subtask #2
7.0 / 7.0

Subtask #3
32.0 / 32.0

Subtask #4
20.0 / 20.0

Subtask #5
36.0 / 36.0