답안 #718058

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
718058	2023-04-03T09:14:07 Z	Kalashnikov	Group Photo (JOI21_ho_t3)	C++17	44 / 100	5000 ms	340 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 = 2e5+5 , inf = 2e9 + 7;
const ll INF = 1e18 ,   mod = 1e9+7 , P = 6547;

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

int get(int l, int r) {
	int cnt = 0;
	for(int i = r; i >= l; i --) {
		for(int j = i+1; j <= r; j ++) {
			if(pos[i] < pos[j]) cnt ++;
		}
		for(int j = l-1; j >= 1; j --) {
			if(pos[i] < pos[j]) cnt ++;
		}
	}
	return cnt;
}

void solve(int tc) {
	int n;
	cin >> n;
	for(int i = 1; i <= n; i ++) {
		cin >> a[i];
		pos[a[i]] = i;
	}
	for(int i = 1; i <= n; i ++) {
		dp[i] = inf;
		for(int j = i; j >= 1; j --) {
			dp[i] = min(dp[i], get(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:47:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
   47 | main() {
      | ^~~~

Subtask #1

5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	212 KB	Output is correct
2	Correct	0 ms	212 KB	Output is correct
3	Correct	0 ms	212 KB	Output is correct
4	Correct	0 ms	340 KB	Output is correct
5	Correct	0 ms	212 KB	Output is correct
6	Correct	0 ms	212 KB	Output is correct
7	Correct	1 ms	212 KB	Output is correct
8	Correct	1 ms	212 KB	Output is correct
9	Correct	1 ms	340 KB	Output is correct
10	Correct	0 ms	340 KB	Output is correct

Subtask #2

7.0 / 7.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	212 KB	Output is correct
2	Correct	0 ms	212 KB	Output is correct
3	Correct	0 ms	212 KB	Output is correct
4	Correct	0 ms	340 KB	Output is correct
5	Correct	0 ms	212 KB	Output is correct
6	Correct	0 ms	212 KB	Output is correct
7	Correct	1 ms	212 KB	Output is correct
8	Correct	1 ms	212 KB	Output is correct
9	Correct	1 ms	340 KB	Output is correct
10	Correct	0 ms	340 KB	Output is correct
11	Correct	0 ms	212 KB	Output is correct
12	Correct	1 ms	340 KB	Output is correct
13	Correct	1 ms	340 KB	Output is correct
14	Correct	0 ms	212 KB	Output is correct
15	Correct	0 ms	212 KB	Output is correct
16	Correct	0 ms	212 KB	Output is correct
17	Correct	0 ms	212 KB	Output is correct
18	Correct	0 ms	212 KB	Output is correct
19	Correct	0 ms	340 KB	Output is correct
20	Correct	1 ms	212 KB	Output is correct

Subtask #3

32.0 / 32.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	212 KB	Output is correct
2	Correct	0 ms	212 KB	Output is correct
3	Correct	0 ms	212 KB	Output is correct
4	Correct	0 ms	340 KB	Output is correct
5	Correct	0 ms	212 KB	Output is correct
6	Correct	0 ms	212 KB	Output is correct
7	Correct	1 ms	212 KB	Output is correct
8	Correct	1 ms	212 KB	Output is correct
9	Correct	1 ms	340 KB	Output is correct
10	Correct	0 ms	340 KB	Output is correct
11	Correct	0 ms	212 KB	Output is correct
12	Correct	1 ms	340 KB	Output is correct
13	Correct	1 ms	340 KB	Output is correct
14	Correct	0 ms	212 KB	Output is correct
15	Correct	0 ms	212 KB	Output is correct
16	Correct	0 ms	212 KB	Output is correct
17	Correct	0 ms	212 KB	Output is correct
18	Correct	0 ms	212 KB	Output is correct
19	Correct	0 ms	340 KB	Output is correct
20	Correct	1 ms	212 KB	Output is correct
21	Correct	102 ms	332 KB	Output is correct
22	Correct	104 ms	328 KB	Output is correct
23	Correct	101 ms	316 KB	Output is correct
24	Correct	107 ms	312 KB	Output is correct
25	Correct	110 ms	212 KB	Output is correct
26	Correct	106 ms	316 KB	Output is correct
27	Correct	105 ms	212 KB	Output is correct
28	Correct	107 ms	212 KB	Output is correct
29	Correct	113 ms	212 KB	Output is correct
30	Correct	103 ms	212 KB	Output is correct

Subtask #4

0 / 20.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	212 KB	Output is correct
2	Correct	0 ms	212 KB	Output is correct
3	Correct	0 ms	212 KB	Output is correct
4	Correct	0 ms	340 KB	Output is correct
5	Correct	0 ms	212 KB	Output is correct
6	Correct	0 ms	212 KB	Output is correct
7	Correct	1 ms	212 KB	Output is correct
8	Correct	1 ms	212 KB	Output is correct
9	Correct	1 ms	340 KB	Output is correct
10	Correct	0 ms	340 KB	Output is correct
11	Correct	0 ms	212 KB	Output is correct
12	Correct	1 ms	340 KB	Output is correct
13	Correct	1 ms	340 KB	Output is correct
14	Correct	0 ms	212 KB	Output is correct
15	Correct	0 ms	212 KB	Output is correct
16	Correct	0 ms	212 KB	Output is correct
17	Correct	0 ms	212 KB	Output is correct
18	Correct	0 ms	212 KB	Output is correct
19	Correct	0 ms	340 KB	Output is correct
20	Correct	1 ms	212 KB	Output is correct
21	Correct	102 ms	332 KB	Output is correct
22	Correct	104 ms	328 KB	Output is correct
23	Correct	101 ms	316 KB	Output is correct
24	Correct	107 ms	312 KB	Output is correct
25	Correct	110 ms	212 KB	Output is correct
26	Correct	106 ms	316 KB	Output is correct
27	Correct	105 ms	212 KB	Output is correct
28	Correct	107 ms	212 KB	Output is correct
29	Correct	113 ms	212 KB	Output is correct
30	Correct	103 ms	212 KB	Output is correct
31	Execution timed out	5044 ms	212 KB	Time limit exceeded
32	Halted	0 ms	0 KB	-

Subtask #5

0 / 36.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	212 KB	Output is correct
2	Correct	0 ms	212 KB	Output is correct
3	Correct	0 ms	212 KB	Output is correct
4	Correct	0 ms	340 KB	Output is correct
5	Correct	0 ms	212 KB	Output is correct
6	Correct	0 ms	212 KB	Output is correct
7	Correct	1 ms	212 KB	Output is correct
8	Correct	1 ms	212 KB	Output is correct
9	Correct	1 ms	340 KB	Output is correct
10	Correct	0 ms	340 KB	Output is correct
11	Correct	0 ms	212 KB	Output is correct
12	Correct	1 ms	340 KB	Output is correct
13	Correct	1 ms	340 KB	Output is correct
14	Correct	0 ms	212 KB	Output is correct
15	Correct	0 ms	212 KB	Output is correct
16	Correct	0 ms	212 KB	Output is correct
17	Correct	0 ms	212 KB	Output is correct
18	Correct	0 ms	212 KB	Output is correct
19	Correct	0 ms	340 KB	Output is correct
20	Correct	1 ms	212 KB	Output is correct
21	Correct	102 ms	332 KB	Output is correct
22	Correct	104 ms	328 KB	Output is correct
23	Correct	101 ms	316 KB	Output is correct
24	Correct	107 ms	312 KB	Output is correct
25	Correct	110 ms	212 KB	Output is correct
26	Correct	106 ms	316 KB	Output is correct
27	Correct	105 ms	212 KB	Output is correct
28	Correct	107 ms	212 KB	Output is correct
29	Correct	113 ms	212 KB	Output is correct
30	Correct	103 ms	212 KB	Output is correct
31	Execution timed out	5044 ms	212 KB	Time limit exceeded
32	Halted	0 ms	0 KB	-