Submission #537670

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
537670	2022-03-15T11:09:30 Z	zaneyu	Security Gate (JOI18_security_gate)	C++14	30 / 100	961 ms	332 KB

securitygate

/*input
3
x))
*/
#include<bits/stdc++.h>
using namespace std;
#define REP(i,n) for(int i=0;i<n;i++)
#define MNTO(x,y) x=min(x,y)
#define MXTO(x,y) x=max(x,y)
#define REP1(i,n) for(int i=1;i<=n;i++)
#define ll long long
#define ld long double
#define sz(x) (int)x.size()
#define pii pair<ll,ll>
#define pdd pair<ld,ld>
#define f first
#define s second
#define pb push_back
#define ALL(x) x.begin(),x.end()
const int INF=0x3f3f3f3f;
const int maxn=100+5;
int pf[maxn],pm[maxn];
bool check(string s){
    int n=sz(s);
    int x=0;
    int mn=INF;
    REP1(i,n){
        if(s[i-1]=='(') ++x;
        else --x;
        pf[i]=x;
        MNTO(mn,pf[i]);
    }
    int r=0;
    for(int i=n;i>=0;i--){
        if(pf[i]<pf[n]){
            r=i;
            break;
        }
    }
    if(pf[n]==0 and mn==0){
        return true;
    }
    REP(i,n+2) pm[i]=0;
    for(int i=r;i>=0;i--){
        pm[i]=max(pm[i+1],pf[i]);
    }
    REP1(j,n){
        if(pf[j-1]<0) break;
        int mx=pm[j];
        for(int i=max(r,j);i<=n;i++){
            MXTO(mx,pf[i]);
            if(mx>pf[j-1]*2){
                break;
            }
            if((2*pf[j-1]-2*pf[i]+pf[n])==0){
                return true;
            }
        }
    }
    return false;
}
int main(){
    ios::sync_with_stdio(false),cin.tie(0);
    int n;
    cin>>n;
    if(n%2){
        cout<<0;
        return 0;
    }
    string s;
    cin>>s;
    vector<int> v;
    REP(i,n){
        if(s[i]=='x') v.pb(i);
    }
    int ans=0;
    REP(i,(1<<sz(v))){
        string tmp=s;
        REP(j,sz(v)){
            if(i&(1<<j)) s[v[j]]='(';
            else s[v[j]]=')';
        }
        ans+=check(s);
        s=tmp;
    }
    cout<<ans;
}

Subtask #1
4.0 / 4.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	212 KB	Output is correct
2	Correct	1 ms	212 KB	Output is correct
3	Correct	1 ms	212 KB	Output is correct
4	Correct	0 ms	316 KB	Output is correct
5	Correct	0 ms	316 KB	Output is correct
6	Correct	1 ms	320 KB	Output is correct
7	Correct	0 ms	320 KB	Output is correct
8	Correct	1 ms	212 KB	Output is correct
9	Correct	1 ms	212 KB	Output is correct
10	Correct	1 ms	284 KB	Output is correct
11	Correct	1 ms	212 KB	Output is correct
12	Correct	1 ms	212 KB	Output is correct
13	Correct	1 ms	212 KB	Output is correct
14	Correct	1 ms	320 KB	Output is correct
15	Correct	1 ms	212 KB	Output is correct
16	Correct	1 ms	316 KB	Output is correct
17	Correct	1 ms	320 KB	Output is correct

Subtask #2
8.0 / 8.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	212 KB	Output is correct
2	Correct	1 ms	212 KB	Output is correct
3	Correct	1 ms	212 KB	Output is correct
4	Correct	0 ms	316 KB	Output is correct
5	Correct	0 ms	316 KB	Output is correct
6	Correct	1 ms	320 KB	Output is correct
7	Correct	0 ms	320 KB	Output is correct
8	Correct	1 ms	212 KB	Output is correct
9	Correct	1 ms	212 KB	Output is correct
10	Correct	1 ms	284 KB	Output is correct
11	Correct	1 ms	212 KB	Output is correct
12	Correct	1 ms	212 KB	Output is correct
13	Correct	1 ms	212 KB	Output is correct
14	Correct	1 ms	320 KB	Output is correct
15	Correct	1 ms	212 KB	Output is correct
16	Correct	1 ms	316 KB	Output is correct
17	Correct	1 ms	320 KB	Output is correct
18	Correct	1 ms	212 KB	Output is correct
19	Correct	1 ms	316 KB	Output is correct
20	Correct	2 ms	212 KB	Output is correct
21	Correct	4 ms	328 KB	Output is correct
22	Correct	4 ms	212 KB	Output is correct
23	Correct	1 ms	212 KB	Output is correct
24	Correct	3 ms	320 KB	Output is correct
25	Correct	1 ms	320 KB	Output is correct
26	Correct	1 ms	212 KB	Output is correct
27	Correct	3 ms	320 KB	Output is correct
28	Correct	2 ms	212 KB	Output is correct
29	Correct	1 ms	212 KB	Output is correct
30	Correct	1 ms	212 KB	Output is correct
31	Correct	3 ms	212 KB	Output is correct

Subtask #3
18.0 / 18.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	212 KB	Output is correct
2	Correct	1 ms	212 KB	Output is correct
3	Correct	1 ms	212 KB	Output is correct
4	Correct	0 ms	316 KB	Output is correct
5	Correct	0 ms	316 KB	Output is correct
6	Correct	1 ms	320 KB	Output is correct
7	Correct	0 ms	320 KB	Output is correct
8	Correct	1 ms	212 KB	Output is correct
9	Correct	1 ms	212 KB	Output is correct
10	Correct	1 ms	284 KB	Output is correct
11	Correct	1 ms	212 KB	Output is correct
12	Correct	1 ms	212 KB	Output is correct
13	Correct	1 ms	212 KB	Output is correct
14	Correct	1 ms	320 KB	Output is correct
15	Correct	1 ms	212 KB	Output is correct
16	Correct	1 ms	316 KB	Output is correct
17	Correct	1 ms	320 KB	Output is correct
18	Correct	1 ms	212 KB	Output is correct
19	Correct	1 ms	316 KB	Output is correct
20	Correct	2 ms	212 KB	Output is correct
21	Correct	4 ms	328 KB	Output is correct
22	Correct	4 ms	212 KB	Output is correct
23	Correct	1 ms	212 KB	Output is correct
24	Correct	3 ms	320 KB	Output is correct
25	Correct	1 ms	320 KB	Output is correct
26	Correct	1 ms	212 KB	Output is correct
27	Correct	3 ms	320 KB	Output is correct
28	Correct	2 ms	212 KB	Output is correct
29	Correct	1 ms	212 KB	Output is correct
30	Correct	1 ms	212 KB	Output is correct
31	Correct	3 ms	212 KB	Output is correct
32	Correct	19 ms	212 KB	Output is correct
33	Correct	5 ms	320 KB	Output is correct
34	Correct	345 ms	300 KB	Output is correct
35	Correct	20 ms	320 KB	Output is correct
36	Correct	42 ms	212 KB	Output is correct
37	Correct	144 ms	300 KB	Output is correct
38	Correct	961 ms	296 KB	Output is correct
39	Correct	20 ms	212 KB	Output is correct
40	Correct	477 ms	300 KB	Output is correct
41	Correct	692 ms	332 KB	Output is correct
42	Correct	692 ms	300 KB	Output is correct
43	Correct	305 ms	332 KB	Output is correct
44	Correct	34 ms	296 KB	Output is correct
45	Correct	754 ms	300 KB	Output is correct

Subtask #4
0 / 43.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	212 KB	Output is correct
2	Correct	1 ms	212 KB	Output is correct
3	Correct	1 ms	212 KB	Output is correct
4	Correct	0 ms	316 KB	Output is correct
5	Correct	0 ms	316 KB	Output is correct
6	Correct	1 ms	320 KB	Output is correct
7	Correct	0 ms	320 KB	Output is correct
8	Correct	1 ms	212 KB	Output is correct
9	Correct	1 ms	212 KB	Output is correct
10	Correct	1 ms	284 KB	Output is correct
11	Correct	1 ms	212 KB	Output is correct
12	Correct	1 ms	212 KB	Output is correct
13	Correct	1 ms	212 KB	Output is correct
14	Correct	1 ms	320 KB	Output is correct
15	Correct	1 ms	212 KB	Output is correct
16	Correct	1 ms	316 KB	Output is correct
17	Correct	1 ms	320 KB	Output is correct
18	Correct	1 ms	212 KB	Output is correct
19	Correct	1 ms	316 KB	Output is correct
20	Correct	2 ms	212 KB	Output is correct
21	Correct	4 ms	328 KB	Output is correct
22	Correct	4 ms	212 KB	Output is correct
23	Correct	1 ms	212 KB	Output is correct
24	Correct	3 ms	320 KB	Output is correct
25	Correct	1 ms	320 KB	Output is correct
26	Correct	1 ms	212 KB	Output is correct
27	Correct	3 ms	320 KB	Output is correct
28	Correct	2 ms	212 KB	Output is correct
29	Correct	1 ms	212 KB	Output is correct
30	Correct	1 ms	212 KB	Output is correct
31	Correct	3 ms	212 KB	Output is correct
32	Correct	19 ms	212 KB	Output is correct
33	Correct	5 ms	320 KB	Output is correct
34	Correct	345 ms	300 KB	Output is correct
35	Correct	20 ms	320 KB	Output is correct
36	Correct	42 ms	212 KB	Output is correct
37	Correct	144 ms	300 KB	Output is correct
38	Correct	961 ms	296 KB	Output is correct
39	Correct	20 ms	212 KB	Output is correct
40	Correct	477 ms	300 KB	Output is correct
41	Correct	692 ms	332 KB	Output is correct
42	Correct	692 ms	300 KB	Output is correct
43	Correct	305 ms	332 KB	Output is correct
44	Correct	34 ms	296 KB	Output is correct
45	Correct	754 ms	300 KB	Output is correct
46	Correct	1 ms	212 KB	Output is correct
47	Correct	1 ms	316 KB	Output is correct
48	Correct	1 ms	212 KB	Output is correct
49	Incorrect	1 ms	256 KB	Output isn't correct
50	Halted	0 ms	0 KB	-

Subtask #5
0 / 27.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	212 KB	Output is correct
2	Correct	1 ms	212 KB	Output is correct
3	Correct	1 ms	212 KB	Output is correct
4	Correct	0 ms	316 KB	Output is correct
5	Correct	0 ms	316 KB	Output is correct
6	Correct	1 ms	320 KB	Output is correct
7	Correct	0 ms	320 KB	Output is correct
8	Correct	1 ms	212 KB	Output is correct
9	Correct	1 ms	212 KB	Output is correct
10	Correct	1 ms	284 KB	Output is correct
11	Correct	1 ms	212 KB	Output is correct
12	Correct	1 ms	212 KB	Output is correct
13	Correct	1 ms	212 KB	Output is correct
14	Correct	1 ms	320 KB	Output is correct
15	Correct	1 ms	212 KB	Output is correct
16	Correct	1 ms	316 KB	Output is correct
17	Correct	1 ms	320 KB	Output is correct
18	Correct	1 ms	212 KB	Output is correct
19	Correct	1 ms	316 KB	Output is correct
20	Correct	2 ms	212 KB	Output is correct
21	Correct	4 ms	328 KB	Output is correct
22	Correct	4 ms	212 KB	Output is correct
23	Correct	1 ms	212 KB	Output is correct
24	Correct	3 ms	320 KB	Output is correct
25	Correct	1 ms	320 KB	Output is correct
26	Correct	1 ms	212 KB	Output is correct
27	Correct	3 ms	320 KB	Output is correct
28	Correct	2 ms	212 KB	Output is correct
29	Correct	1 ms	212 KB	Output is correct
30	Correct	1 ms	212 KB	Output is correct
31	Correct	3 ms	212 KB	Output is correct
32	Correct	19 ms	212 KB	Output is correct
33	Correct	5 ms	320 KB	Output is correct
34	Correct	345 ms	300 KB	Output is correct
35	Correct	20 ms	320 KB	Output is correct
36	Correct	42 ms	212 KB	Output is correct
37	Correct	144 ms	300 KB	Output is correct
38	Correct	961 ms	296 KB	Output is correct
39	Correct	20 ms	212 KB	Output is correct
40	Correct	477 ms	300 KB	Output is correct
41	Correct	692 ms	332 KB	Output is correct
42	Correct	692 ms	300 KB	Output is correct
43	Correct	305 ms	332 KB	Output is correct
44	Correct	34 ms	296 KB	Output is correct
45	Correct	754 ms	300 KB	Output is correct
46	Correct	1 ms	212 KB	Output is correct
47	Correct	1 ms	316 KB	Output is correct
48	Correct	1 ms	212 KB	Output is correct
49	Incorrect	1 ms	256 KB	Output isn't correct
50	Halted	0 ms	0 KB	-

Submission #537670

Compilation message

Subtask #1 4.0 / 4.0

Subtask #2 8.0 / 8.0

Subtask #3 18.0 / 18.0

Subtask #4 0 / 43.0

Subtask #5 0 / 27.0

Subtask #1
4.0 / 4.0

Subtask #2
8.0 / 8.0

Subtask #3
18.0 / 18.0

Subtask #4
0 / 43.0

Subtask #5
0 / 27.0