답안 #803259

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
803259	2023-08-03T02:36:10 Z	guagua0407	Group Photo (JOI21_ho_t3)	C++17	100 / 100	530 ms	564 KB

Main

//#pragma GCC optimize("O3")
#include <bits/stdc++.h>
using namespace std;
#define ll long long
#define pii pair<int,int>
#define f first
#define s second
#define all(x) x.begin(),x.end()
#define _ ios::sync_with_stdio(0); cin.tie(0); cout.tie(0);

void setIO(string s) {
    freopen((s + ".in").c_str(), "r", stdin);
    freopen((s + ".out").c_str(), "w", stdout);
}

const int mxn=5005;
int pos[mxn];
int num[mxn];
ll dp[mxn];
int bit[2][mxn];

void update(int id,int pos,int val){
    for(;pos<mxn;pos+=(pos&-pos)){
        bit[id][pos]+=val;
    }
}

int query(int id,int pos){
    int ans=0;
    for(;pos;pos-=(pos&-pos)){
        ans+=bit[id][pos];
    }
    return ans;
}

int main() {_
    int n;
    cin>>n;
    for(int i=1;i<=n;i++){
        cin>>num[i];
        pos[num[i]]=i;
    }
    for(int i=1;i<=n;i++){
        memset(bit[0],0,sizeof(bit[0]));
        memset(bit[1],0,sizeof(bit[1]));
        ll cur=0;
        dp[i]=(ll)1e18;
        for(int j=n;j>i;j--){
            update(0,pos[j],1);
        }
        for(int j=i;j>=1;j--){
            cur+=query(0,pos[j]);
            cur+=query(1,n)-query(1,pos[j]);
            //cout<<j<<' '<<i<<' '<<cur<<'\n';
            dp[i]=min(dp[i],dp[j-1]+cur);
            update(1,pos[j],1);
        }
    }
    cout<<dp[n]<<'\n';
    return 0;
}
//maybe its multiset not set

Compilation message

Main.cpp: In function 'void setIO(std::string)':
Main.cpp:12:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   12 |     freopen((s + ".in").c_str(), "r", stdin);
      |     ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Main.cpp:13:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   13 |     freopen((s + ".out").c_str(), "w", stdout);
      |     ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

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	340 KB	Output is correct
4	Correct	1 ms	340 KB	Output is correct
5	Correct	1 ms	328 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	340 KB	Output is correct
9	Correct	0 ms	328 KB	Output is correct
10	Correct	1 ms	340 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	340 KB	Output is correct
4	Correct	1 ms	340 KB	Output is correct
5	Correct	1 ms	328 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	340 KB	Output is correct
9	Correct	0 ms	328 KB	Output is correct
10	Correct	1 ms	340 KB	Output is correct
11	Correct	1 ms	328 KB	Output is correct
12	Correct	0 ms	340 KB	Output is correct
13	Correct	0 ms	328 KB	Output is correct
14	Correct	0 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	0 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	340 KB	Output is correct
4	Correct	1 ms	340 KB	Output is correct
5	Correct	1 ms	328 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	340 KB	Output is correct
9	Correct	0 ms	328 KB	Output is correct
10	Correct	1 ms	340 KB	Output is correct
11	Correct	1 ms	328 KB	Output is correct
12	Correct	0 ms	340 KB	Output is correct
13	Correct	0 ms	328 KB	Output is correct
14	Correct	0 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	0 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	340 KB	Output is correct
22	Correct	2 ms	332 KB	Output is correct
23	Correct	1 ms	340 KB	Output is correct
24	Correct	1 ms	340 KB	Output is correct
25	Correct	1 ms	340 KB	Output is correct
26	Correct	1 ms	340 KB	Output is correct
27	Correct	1 ms	280 KB	Output is correct
28	Correct	1 ms	340 KB	Output is correct
29	Correct	2 ms	340 KB	Output is correct
30	Correct	2 ms	340 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	340 KB	Output is correct
4	Correct	1 ms	340 KB	Output is correct
5	Correct	1 ms	328 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	340 KB	Output is correct
9	Correct	0 ms	328 KB	Output is correct
10	Correct	1 ms	340 KB	Output is correct
11	Correct	1 ms	328 KB	Output is correct
12	Correct	0 ms	340 KB	Output is correct
13	Correct	0 ms	328 KB	Output is correct
14	Correct	0 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	0 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	340 KB	Output is correct
22	Correct	2 ms	332 KB	Output is correct
23	Correct	1 ms	340 KB	Output is correct
24	Correct	1 ms	340 KB	Output is correct
25	Correct	1 ms	340 KB	Output is correct
26	Correct	1 ms	340 KB	Output is correct
27	Correct	1 ms	280 KB	Output is correct
28	Correct	1 ms	340 KB	Output is correct
29	Correct	2 ms	340 KB	Output is correct
30	Correct	2 ms	340 KB	Output is correct
31	Correct	9 ms	392 KB	Output is correct
32	Correct	10 ms	340 KB	Output is correct
33	Correct	10 ms	392 KB	Output is correct
34	Correct	8 ms	324 KB	Output is correct
35	Correct	8 ms	392 KB	Output is correct
36	Correct	8 ms	340 KB	Output is correct
37	Correct	8 ms	388 KB	Output is correct
38	Correct	8 ms	396 KB	Output is correct
39	Correct	9 ms	328 KB	Output is correct
40	Correct	8 ms	340 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	340 KB	Output is correct
4	Correct	1 ms	340 KB	Output is correct
5	Correct	1 ms	328 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	340 KB	Output is correct
9	Correct	0 ms	328 KB	Output is correct
10	Correct	1 ms	340 KB	Output is correct
11	Correct	1 ms	328 KB	Output is correct
12	Correct	0 ms	340 KB	Output is correct
13	Correct	0 ms	328 KB	Output is correct
14	Correct	0 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	0 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	340 KB	Output is correct
22	Correct	2 ms	332 KB	Output is correct
23	Correct	1 ms	340 KB	Output is correct
24	Correct	1 ms	340 KB	Output is correct
25	Correct	1 ms	340 KB	Output is correct
26	Correct	1 ms	340 KB	Output is correct
27	Correct	1 ms	280 KB	Output is correct
28	Correct	1 ms	340 KB	Output is correct
29	Correct	2 ms	340 KB	Output is correct
30	Correct	2 ms	340 KB	Output is correct
31	Correct	9 ms	392 KB	Output is correct
32	Correct	10 ms	340 KB	Output is correct
33	Correct	10 ms	392 KB	Output is correct
34	Correct	8 ms	324 KB	Output is correct
35	Correct	8 ms	392 KB	Output is correct
36	Correct	8 ms	340 KB	Output is correct
37	Correct	8 ms	388 KB	Output is correct
38	Correct	8 ms	396 KB	Output is correct
39	Correct	9 ms	328 KB	Output is correct
40	Correct	8 ms	340 KB	Output is correct
41	Correct	530 ms	436 KB	Output is correct
42	Correct	521 ms	556 KB	Output is correct
43	Correct	519 ms	444 KB	Output is correct
44	Correct	525 ms	460 KB	Output is correct
45	Correct	529 ms	460 KB	Output is correct
46	Correct	521 ms	340 KB	Output is correct
47	Correct	509 ms	460 KB	Output is correct
48	Correct	506 ms	416 KB	Output is correct
49	Correct	511 ms	412 KB	Output is correct
50	Correct	509 ms	440 KB	Output is correct
51	Correct	517 ms	440 KB	Output is correct
52	Correct	505 ms	444 KB	Output is correct
53	Correct	508 ms	540 KB	Output is correct
54	Correct	510 ms	440 KB	Output is correct
55	Correct	504 ms	564 KB	Output is correct

답안 #803259

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