답안 #974336

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
974336	2024-05-03T08:44:08 Z	berr	Group Photo (JOI21_ho_t3)	C++17	100 / 100	656 ms	392828 KB

Main

#include <bits/stdc++.h>
using namespace std; 
#define int long long
const int N=5005;
int ar[N][N], p[N][N],b[N], dp[N];
signed main(){
    ios_base::sync_with_stdio(false);
    cin.tie(0);
   
    int n; cin >> n;

    vector<int> a(n);

    for(auto &i: a) cin >> i;

    for(int i=1; i<=n; i++) dp[i]=1e9;
    for(int i=0; i<n; i++){
        for(int l=0; l<i; l++){
            ar[a[i]][a[l]]++;
        }

        for(int l=n-1; l>=0; l--){
            ar[a[i]][l]+=ar[a[i]][l+1];
        }
    }

    //her i l için bir prefix sum
    for(int i=0; i<=n; i++){
        for(int l=0; l<=n; l++){
            p[i][l]=ar[l][i];
            if(l!=0) p[i][l]+=p[i][l-1];
        }
        b[i]+=ar[i][i];
        if(i!=0) b[i]+=b[i-1];
    }
    for(int i=1; i<=n; i++){
        int v=0;
        for(int l=i-1; l>=0; l--){
            int v=0;

            v+=p[i+1][i]-p[i+1][l];
            v+=p[l+1][i]-p[l+1][l];
            v-=b[i]-b[l];
      
            dp[i]=min(dp[i], dp[l]+v);
        }
       // cout<<"-----"<<dp[i]<<"\n";
    }

    cout<<dp[n];
}

Compilation message

Main.cpp: In function 'int main()':
Main.cpp:37:13: warning: unused variable 'v' [-Wunused-variable]
   37 |         int v=0;
      |             ^

Subtask #1
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	2392 KB	Output is correct
2	Correct	0 ms	2396 KB	Output is correct
3	Correct	0 ms	2396 KB	Output is correct
4	Correct	1 ms	2392 KB	Output is correct
5	Correct	1 ms	2396 KB	Output is correct
6	Correct	1 ms	2396 KB	Output is correct
7	Correct	1 ms	2396 KB	Output is correct
8	Correct	1 ms	2396 KB	Output is correct
9	Correct	1 ms	2396 KB	Output is correct
10	Correct	1 ms	2396 KB	Output is correct

Subtask #2
7.0 / 7.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	2392 KB	Output is correct
2	Correct	0 ms	2396 KB	Output is correct
3	Correct	0 ms	2396 KB	Output is correct
4	Correct	1 ms	2392 KB	Output is correct
5	Correct	1 ms	2396 KB	Output is correct
6	Correct	1 ms	2396 KB	Output is correct
7	Correct	1 ms	2396 KB	Output is correct
8	Correct	1 ms	2396 KB	Output is correct
9	Correct	1 ms	2396 KB	Output is correct
10	Correct	1 ms	2396 KB	Output is correct
11	Correct	1 ms	2392 KB	Output is correct
12	Correct	1 ms	2396 KB	Output is correct
13	Correct	1 ms	2408 KB	Output is correct
14	Correct	1 ms	2396 KB	Output is correct
15	Correct	1 ms	2396 KB	Output is correct
16	Correct	1 ms	2396 KB	Output is correct
17	Correct	1 ms	2396 KB	Output is correct
18	Correct	1 ms	2396 KB	Output is correct
19	Correct	1 ms	2648 KB	Output is correct
20	Correct	1 ms	2396 KB	Output is correct

Subtask #3
32.0 / 32.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	2392 KB	Output is correct
2	Correct	0 ms	2396 KB	Output is correct
3	Correct	0 ms	2396 KB	Output is correct
4	Correct	1 ms	2392 KB	Output is correct
5	Correct	1 ms	2396 KB	Output is correct
6	Correct	1 ms	2396 KB	Output is correct
7	Correct	1 ms	2396 KB	Output is correct
8	Correct	1 ms	2396 KB	Output is correct
9	Correct	1 ms	2396 KB	Output is correct
10	Correct	1 ms	2396 KB	Output is correct
11	Correct	1 ms	2392 KB	Output is correct
12	Correct	1 ms	2396 KB	Output is correct
13	Correct	1 ms	2408 KB	Output is correct
14	Correct	1 ms	2396 KB	Output is correct
15	Correct	1 ms	2396 KB	Output is correct
16	Correct	1 ms	2396 KB	Output is correct
17	Correct	1 ms	2396 KB	Output is correct
18	Correct	1 ms	2396 KB	Output is correct
19	Correct	1 ms	2648 KB	Output is correct
20	Correct	1 ms	2396 KB	Output is correct
21	Correct	3 ms	16984 KB	Output is correct
22	Correct	2 ms	16988 KB	Output is correct
23	Correct	3 ms	16988 KB	Output is correct
24	Correct	2 ms	16984 KB	Output is correct
25	Correct	2 ms	17240 KB	Output is correct
26	Correct	2 ms	16988 KB	Output is correct
27	Correct	3 ms	16988 KB	Output is correct
28	Correct	3 ms	16988 KB	Output is correct
29	Correct	3 ms	16988 KB	Output is correct
30	Correct	2 ms	16988 KB	Output is correct

Subtask #4
20.0 / 20.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	2392 KB	Output is correct
2	Correct	0 ms	2396 KB	Output is correct
3	Correct	0 ms	2396 KB	Output is correct
4	Correct	1 ms	2392 KB	Output is correct
5	Correct	1 ms	2396 KB	Output is correct
6	Correct	1 ms	2396 KB	Output is correct
7	Correct	1 ms	2396 KB	Output is correct
8	Correct	1 ms	2396 KB	Output is correct
9	Correct	1 ms	2396 KB	Output is correct
10	Correct	1 ms	2396 KB	Output is correct
11	Correct	1 ms	2392 KB	Output is correct
12	Correct	1 ms	2396 KB	Output is correct
13	Correct	1 ms	2408 KB	Output is correct
14	Correct	1 ms	2396 KB	Output is correct
15	Correct	1 ms	2396 KB	Output is correct
16	Correct	1 ms	2396 KB	Output is correct
17	Correct	1 ms	2396 KB	Output is correct
18	Correct	1 ms	2396 KB	Output is correct
19	Correct	1 ms	2648 KB	Output is correct
20	Correct	1 ms	2396 KB	Output is correct
21	Correct	3 ms	16984 KB	Output is correct
22	Correct	2 ms	16988 KB	Output is correct
23	Correct	3 ms	16988 KB	Output is correct
24	Correct	2 ms	16984 KB	Output is correct
25	Correct	2 ms	17240 KB	Output is correct
26	Correct	2 ms	16988 KB	Output is correct
27	Correct	3 ms	16988 KB	Output is correct
28	Correct	3 ms	16988 KB	Output is correct
29	Correct	3 ms	16988 KB	Output is correct
30	Correct	2 ms	16988 KB	Output is correct
31	Correct	33 ms	64600 KB	Output is correct
32	Correct	15 ms	64348 KB	Output is correct
33	Correct	14 ms	64544 KB	Output is correct
34	Correct	15 ms	64604 KB	Output is correct
35	Correct	14 ms	64604 KB	Output is correct
36	Correct	14 ms	64664 KB	Output is correct
37	Correct	14 ms	64600 KB	Output is correct
38	Correct	13 ms	64608 KB	Output is correct
39	Correct	15 ms	64672 KB	Output is correct
40	Correct	14 ms	64672 KB	Output is correct

Subtask #5
36.0 / 36.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	2392 KB	Output is correct
2	Correct	0 ms	2396 KB	Output is correct
3	Correct	0 ms	2396 KB	Output is correct
4	Correct	1 ms	2392 KB	Output is correct
5	Correct	1 ms	2396 KB	Output is correct
6	Correct	1 ms	2396 KB	Output is correct
7	Correct	1 ms	2396 KB	Output is correct
8	Correct	1 ms	2396 KB	Output is correct
9	Correct	1 ms	2396 KB	Output is correct
10	Correct	1 ms	2396 KB	Output is correct
11	Correct	1 ms	2392 KB	Output is correct
12	Correct	1 ms	2396 KB	Output is correct
13	Correct	1 ms	2408 KB	Output is correct
14	Correct	1 ms	2396 KB	Output is correct
15	Correct	1 ms	2396 KB	Output is correct
16	Correct	1 ms	2396 KB	Output is correct
17	Correct	1 ms	2396 KB	Output is correct
18	Correct	1 ms	2396 KB	Output is correct
19	Correct	1 ms	2648 KB	Output is correct
20	Correct	1 ms	2396 KB	Output is correct
21	Correct	3 ms	16984 KB	Output is correct
22	Correct	2 ms	16988 KB	Output is correct
23	Correct	3 ms	16988 KB	Output is correct
24	Correct	2 ms	16984 KB	Output is correct
25	Correct	2 ms	17240 KB	Output is correct
26	Correct	2 ms	16988 KB	Output is correct
27	Correct	3 ms	16988 KB	Output is correct
28	Correct	3 ms	16988 KB	Output is correct
29	Correct	3 ms	16988 KB	Output is correct
30	Correct	2 ms	16988 KB	Output is correct
31	Correct	33 ms	64600 KB	Output is correct
32	Correct	15 ms	64348 KB	Output is correct
33	Correct	14 ms	64544 KB	Output is correct
34	Correct	15 ms	64604 KB	Output is correct
35	Correct	14 ms	64604 KB	Output is correct
36	Correct	14 ms	64664 KB	Output is correct
37	Correct	14 ms	64600 KB	Output is correct
38	Correct	13 ms	64608 KB	Output is correct
39	Correct	15 ms	64672 KB	Output is correct
40	Correct	14 ms	64672 KB	Output is correct
41	Correct	656 ms	392588 KB	Output is correct
42	Correct	587 ms	392568 KB	Output is correct
43	Correct	554 ms	392828 KB	Output is correct
44	Correct	563 ms	392732 KB	Output is correct
45	Correct	557 ms	392744 KB	Output is correct
46	Correct	551 ms	392532 KB	Output is correct
47	Correct	557 ms	392528 KB	Output is correct
48	Correct	568 ms	392660 KB	Output is correct
49	Correct	552 ms	392436 KB	Output is correct
50	Correct	559 ms	392612 KB	Output is correct
51	Correct	555 ms	392752 KB	Output is correct
52	Correct	561 ms	392532 KB	Output is correct
53	Correct	559 ms	392500 KB	Output is correct
54	Correct	572 ms	392820 KB	Output is correct
55	Correct	575 ms	392784 KB	Output is correct

답안 #974336

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