답안 #493788

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
493788	2021-12-13T01:53:44 Z	i_am_noob	Group Photo (JOI21_ho_t3)	C++17	100 / 100	486 ms	892 KB

Main

#include<bits/stdc++.h>
using namespace std;

#define ll long long
#define int ll
#define rep(n) rep1(i,n)
#define rep1(i,n) rep2(i,0,n)
#define rep2(i,a,b) for(int i=a; i<(b); ++i)
#define rep3(i,a,b) for(int i=a; i>=(b); --i)
#define pii pair<int,int>
#define pb push_back
#define all(a) a.begin(),a.end()
#define sz(a) ((int)a.size())
#define pow2(x) (1ll<<(x))
#define inf 1000'000'000'000'000'000
#ifdef i_am_noob
#define bug(...) cerr << "#" << __LINE__ << ": " << #__VA_ARGS__ << "- ",_do(__VA_ARGS__)
template<typename T> void _do(T x){cerr << x << endl;}
template<typename T, typename ... S> void _do(T x, S ...y){cerr << x << ", ";_do(y...);}
#else
#define bug(...) 49
#endif

const int maxn=5005;

int n,a[maxn],dp[maxn],pos[maxn];

int bit[maxn];
void modify(int p, int x){for(int i=p+1; i<maxn; i+=i&-i) bit[i]+=x;}
int query(int r){
    int res=0;
    for(int i=r+1; i; i-=i&-i) res+=bit[i];
    return res;
}

signed main(){
    ios_base::sync_with_stdio(0),cin.tie(0);
    cin >> n;
    rep(n) cin >> a[i];
    rep(n) a[i]--;
    rep2(i,2,n+1){
        vector<int> vec;
        rep1(j,n) if(a[j]<i) vec.pb(j);
        rep1(j,sz(vec)) pos[a[vec[j]]]=j;
        //rep1(j,sz(vec)) bug(vec[j]);
        memset(bit,0,sizeof bit);
        int cur=0,sum=0;
        dp[i]=inf;
        rep3(j,i-1,0){
            cur+=i-j-1-query(pos[j]);
            sum+=pos[j]+1;
            dp[i]=min(dp[i],dp[j]+cur+(i*(i+1)/2-j*(j+1)/2-sum));
            modify(pos[j],1);
        }
        bug(dp[i]);
    }
    cout << dp[n] << endl;
}

Compilation message

Main.cpp: In function 'int main()':
Main.cpp:21:18: warning: statement has no effect [-Wunused-value]
   21 | #define bug(...) 49
      |                  ^~
Main.cpp:55:9: note: in expansion of macro 'bug'
   55 |         bug(dp[i]);
      |         ^~~

Subtask #1
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 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	1 ms	332 KB	Output is correct
5	Correct	1 ms	332 KB	Output is correct
6	Correct	0 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	0 ms	332 KB	Output is correct
10	Correct	0 ms	332 KB	Output is correct

Subtask #2
7.0 / 7.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 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	1 ms	332 KB	Output is correct
5	Correct	1 ms	332 KB	Output is correct
6	Correct	0 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	0 ms	332 KB	Output is correct
10	Correct	0 ms	332 KB	Output is correct
11	Correct	1 ms	316 KB	Output is correct
12	Correct	0 ms	332 KB	Output is correct
13	Correct	0 ms	332 KB	Output is correct
14	Correct	0 ms	332 KB	Output is correct
15	Correct	1 ms	332 KB	Output is correct
16	Correct	1 ms	332 KB	Output is correct
17	Correct	1 ms	332 KB	Output is correct
18	Correct	0 ms	332 KB	Output is correct
19	Correct	0 ms	332 KB	Output is correct
20	Correct	1 ms	332 KB	Output is correct

Subtask #3
32.0 / 32.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 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	1 ms	332 KB	Output is correct
5	Correct	1 ms	332 KB	Output is correct
6	Correct	0 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	0 ms	332 KB	Output is correct
10	Correct	0 ms	332 KB	Output is correct
11	Correct	1 ms	316 KB	Output is correct
12	Correct	0 ms	332 KB	Output is correct
13	Correct	0 ms	332 KB	Output is correct
14	Correct	0 ms	332 KB	Output is correct
15	Correct	1 ms	332 KB	Output is correct
16	Correct	1 ms	332 KB	Output is correct
17	Correct	1 ms	332 KB	Output is correct
18	Correct	0 ms	332 KB	Output is correct
19	Correct	0 ms	332 KB	Output is correct
20	Correct	1 ms	332 KB	Output is correct
21	Correct	1 ms	332 KB	Output is correct
22	Correct	2 ms	332 KB	Output is correct
23	Correct	2 ms	332 KB	Output is correct
24	Correct	2 ms	332 KB	Output is correct
25	Correct	2 ms	316 KB	Output is correct
26	Correct	1 ms	332 KB	Output is correct
27	Correct	2 ms	332 KB	Output is correct
28	Correct	2 ms	332 KB	Output is correct
29	Correct	2 ms	312 KB	Output is correct
30	Correct	2 ms	372 KB	Output is correct

Subtask #4
20.0 / 20.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 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	1 ms	332 KB	Output is correct
5	Correct	1 ms	332 KB	Output is correct
6	Correct	0 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	0 ms	332 KB	Output is correct
10	Correct	0 ms	332 KB	Output is correct
11	Correct	1 ms	316 KB	Output is correct
12	Correct	0 ms	332 KB	Output is correct
13	Correct	0 ms	332 KB	Output is correct
14	Correct	0 ms	332 KB	Output is correct
15	Correct	1 ms	332 KB	Output is correct
16	Correct	1 ms	332 KB	Output is correct
17	Correct	1 ms	332 KB	Output is correct
18	Correct	0 ms	332 KB	Output is correct
19	Correct	0 ms	332 KB	Output is correct
20	Correct	1 ms	332 KB	Output is correct
21	Correct	1 ms	332 KB	Output is correct
22	Correct	2 ms	332 KB	Output is correct
23	Correct	2 ms	332 KB	Output is correct
24	Correct	2 ms	332 KB	Output is correct
25	Correct	2 ms	316 KB	Output is correct
26	Correct	1 ms	332 KB	Output is correct
27	Correct	2 ms	332 KB	Output is correct
28	Correct	2 ms	332 KB	Output is correct
29	Correct	2 ms	312 KB	Output is correct
30	Correct	2 ms	372 KB	Output is correct
31	Correct	12 ms	332 KB	Output is correct
32	Correct	13 ms	400 KB	Output is correct
33	Correct	13 ms	388 KB	Output is correct
34	Correct	13 ms	316 KB	Output is correct
35	Correct	14 ms	500 KB	Output is correct
36	Correct	15 ms	404 KB	Output is correct
37	Correct	16 ms	460 KB	Output is correct
38	Correct	13 ms	332 KB	Output is correct
39	Correct	13 ms	404 KB	Output is correct
40	Correct	14 ms	332 KB	Output is correct

Subtask #5
36.0 / 36.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 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	1 ms	332 KB	Output is correct
5	Correct	1 ms	332 KB	Output is correct
6	Correct	0 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	0 ms	332 KB	Output is correct
10	Correct	0 ms	332 KB	Output is correct
11	Correct	1 ms	316 KB	Output is correct
12	Correct	0 ms	332 KB	Output is correct
13	Correct	0 ms	332 KB	Output is correct
14	Correct	0 ms	332 KB	Output is correct
15	Correct	1 ms	332 KB	Output is correct
16	Correct	1 ms	332 KB	Output is correct
17	Correct	1 ms	332 KB	Output is correct
18	Correct	0 ms	332 KB	Output is correct
19	Correct	0 ms	332 KB	Output is correct
20	Correct	1 ms	332 KB	Output is correct
21	Correct	1 ms	332 KB	Output is correct
22	Correct	2 ms	332 KB	Output is correct
23	Correct	2 ms	332 KB	Output is correct
24	Correct	2 ms	332 KB	Output is correct
25	Correct	2 ms	316 KB	Output is correct
26	Correct	1 ms	332 KB	Output is correct
27	Correct	2 ms	332 KB	Output is correct
28	Correct	2 ms	332 KB	Output is correct
29	Correct	2 ms	312 KB	Output is correct
30	Correct	2 ms	372 KB	Output is correct
31	Correct	12 ms	332 KB	Output is correct
32	Correct	13 ms	400 KB	Output is correct
33	Correct	13 ms	388 KB	Output is correct
34	Correct	13 ms	316 KB	Output is correct
35	Correct	14 ms	500 KB	Output is correct
36	Correct	15 ms	404 KB	Output is correct
37	Correct	16 ms	460 KB	Output is correct
38	Correct	13 ms	332 KB	Output is correct
39	Correct	13 ms	404 KB	Output is correct
40	Correct	14 ms	332 KB	Output is correct
41	Correct	476 ms	656 KB	Output is correct
42	Correct	458 ms	700 KB	Output is correct
43	Correct	457 ms	748 KB	Output is correct
44	Correct	457 ms	580 KB	Output is correct
45	Correct	480 ms	892 KB	Output is correct
46	Correct	467 ms	452 KB	Output is correct
47	Correct	481 ms	744 KB	Output is correct
48	Correct	480 ms	580 KB	Output is correct
49	Correct	466 ms	572 KB	Output is correct
50	Correct	486 ms	524 KB	Output is correct
51	Correct	462 ms	576 KB	Output is correct
52	Correct	470 ms	580 KB	Output is correct
53	Correct	461 ms	580 KB	Output is correct
54	Correct	462 ms	684 KB	Output is correct
55	Correct	452 ms	572 KB	Output is correct

답안 #493788

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