oj.uz

Submission #814316

# Submission time Handle Problem Language Result Execution time Memory
814316 2023-08-08T06:49:23 Z 반딧불(#10119) Security Gate (JOI18_security_gate) C++17
30 / 100
 1669 ms 340 KB 
#include <bits/stdc++.h>

using namespace std;

typedef long long ll;

int n;
char str[302];
char filled[302];
vector<int> blanks;
int ans;

int sum[302];
int spsR[302][7];
vector<int> vec[202];

bool goodString(){
    for(int i=1; i<=n; i++) sum[i] = sum[i-1] + (filled[i] == '(' ? 1 : -1), spsR[i][0] = sum[i];
    for(int d=1; d<7; d++) for(int i=1; i<=n; i++)
        spsR[i][d] = max(spsR[i][d-1], (i+(1<<(d-1))) <= n ? spsR[i+(1<<(d-1))][d-1] : INT_MIN);
    for(int i=0; i<=200; i++) vec[i].clear();

    int minUntilNow = sum[n], pnt = 1;
    for(int i=n; i>=1; i--){
        minUntilNow = min(minUntilNow, sum[i]);
        if(minUntilNow < sum[n]){
            pnt = i+1;
            break;
        }
    }
    if(pnt == 1 && sum[n] == 0) return true;
    for(int i=pnt; i<=n; i++) vec[sum[i] + 100].push_back(i);

    for(int i=1; i<=n; i++){
        if(sum[i-1] < 0) break;
        int j = i-1; /// j���� ����
        int stype = (sum[n] + 2 * sum[i-1]) / 2 + 100;
        if(stype > 200 || stype < 0) continue;
        for(int d=6; d>=0; d--){
            if(spsR[j+1][d] <= sum[i-1] * 2) j += (1<<d);
        }
        int idx = upper_bound(vec[stype].begin(), vec[stype].end(), j) - vec[stype].begin() - 1;
        if(idx >= 0 && i <= vec[stype][idx] && vec[stype][idx] <= j) return true;
    }

    return false;
}

int main(){
    scanf("%d %s", &n, str+1);
    if(n%2){
        puts("0");
        return 0;
    }

    for(int i=1; i<=n; i++) if(str[i] == 'x') blanks.push_back(i);
    int k = (int)blanks.size();
    for(int d=0; d<(1<<k); d++){
        for(int i=1; i<=n; i++) filled[i] = str[i];
        for(int i=0; i<k; i++) filled[blanks[i]] = ((d>>i)&1) ? '(' : ')';
        if(goodString()) ans++;
    }
    printf("%d", ans);
}

Compilation message

securitygate.cpp: In function 'int main()':
securitygate.cpp:50:10: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   50 |     scanf("%d %s", &n, str+1);
      |     ~~~~~^~~~~~~~~~~~~~~~~~~~

Subtask #1
4.0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 1 ms 320 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 1 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 0 ms 212 KB Output is correct
10 Correct 0 ms 212 KB Output is correct
11 Correct 0 ms 212 KB Output is correct
12 Correct 1 ms 212 KB Output is correct
13 Correct 1 ms 340 KB Output is correct
14 Correct 1 ms 212 KB Output is correct
15 Correct 1 ms 212 KB Output is correct
16 Correct 1 ms 212 KB Output is correct
17 Correct 0 ms 212 KB Output is correct

Subtask #2
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 1 ms 320 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 1 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 0 ms 212 KB Output is correct
10 Correct 0 ms 212 KB Output is correct
11 Correct 0 ms 212 KB Output is correct
12 Correct 1 ms 212 KB Output is correct
13 Correct 1 ms 340 KB Output is correct
14 Correct 1 ms 212 KB Output is correct
15 Correct 1 ms 212 KB Output is correct
16 Correct 1 ms 212 KB Output is correct
17 Correct 0 ms 212 KB Output is correct
18 Correct 1 ms 340 KB Output is correct
19 Correct 1 ms 212 KB Output is correct
20 Correct 3 ms 212 KB Output is correct
21 Correct 5 ms 212 KB Output is correct
22 Correct 6 ms 212 KB Output is correct
23 Correct 1 ms 212 KB Output is correct
24 Correct 6 ms 212 KB Output is correct
25 Correct 1 ms 212 KB Output is correct
26 Correct 1 ms 312 KB Output is correct
27 Correct 5 ms 316 KB Output is correct
28 Correct 2 ms 212 KB Output is correct
29 Correct 1 ms 312 KB Output is correct
30 Correct 1 ms 212 KB Output is correct
31 Correct 6 ms 212 KB Output is correct

Subtask #3
18.0 / 18.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 1 ms 320 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 1 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 0 ms 212 KB Output is correct
10 Correct 0 ms 212 KB Output is correct
11 Correct 0 ms 212 KB Output is correct
12 Correct 1 ms 212 KB Output is correct
13 Correct 1 ms 340 KB Output is correct
14 Correct 1 ms 212 KB Output is correct
15 Correct 1 ms 212 KB Output is correct
16 Correct 1 ms 212 KB Output is correct
17 Correct 0 ms 212 KB Output is correct
18 Correct 1 ms 340 KB Output is correct
19 Correct 1 ms 212 KB Output is correct
20 Correct 3 ms 212 KB Output is correct
21 Correct 5 ms 212 KB Output is correct
22 Correct 6 ms 212 KB Output is correct
23 Correct 1 ms 212 KB Output is correct
24 Correct 6 ms 212 KB Output is correct
25 Correct 1 ms 212 KB Output is correct
26 Correct 1 ms 312 KB Output is correct
27 Correct 5 ms 316 KB Output is correct
28 Correct 2 ms 212 KB Output is correct
29 Correct 1 ms 312 KB Output is correct
30 Correct 1 ms 212 KB Output is correct
31 Correct 6 ms 212 KB Output is correct
32 Correct 25 ms 212 KB Output is correct
33 Correct 7 ms 212 KB Output is correct
34 Correct 540 ms 296 KB Output is correct
35 Correct 23 ms 212 KB Output is correct
36 Correct 73 ms 332 KB Output is correct
37 Correct 325 ms 312 KB Output is correct
38 Correct 1669 ms 312 KB Output is correct
39 Correct 23 ms 212 KB Output is correct
40 Correct 1179 ms 308 KB Output is correct
41 Correct 1507 ms 300 KB Output is correct
42 Correct 1310 ms 300 KB Output is correct
43 Correct 663 ms 300 KB Output is correct
44 Correct 89 ms 212 KB Output is correct
45 Correct 1569 ms 300 KB Output is correct

Subtask #4
0 / 43.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 1 ms 320 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 1 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 0 ms 212 KB Output is correct
10 Correct 0 ms 212 KB Output is correct
11 Correct 0 ms 212 KB Output is correct
12 Correct 1 ms 212 KB Output is correct
13 Correct 1 ms 340 KB Output is correct
14 Correct 1 ms 212 KB Output is correct
15 Correct 1 ms 212 KB Output is correct
16 Correct 1 ms 212 KB Output is correct
17 Correct 0 ms 212 KB Output is correct
18 Correct 1 ms 340 KB Output is correct
19 Correct 1 ms 212 KB Output is correct
20 Correct 3 ms 212 KB Output is correct
21 Correct 5 ms 212 KB Output is correct
22 Correct 6 ms 212 KB Output is correct
23 Correct 1 ms 212 KB Output is correct
24 Correct 6 ms 212 KB Output is correct
25 Correct 1 ms 212 KB Output is correct
26 Correct 1 ms 312 KB Output is correct
27 Correct 5 ms 316 KB Output is correct
28 Correct 2 ms 212 KB Output is correct
29 Correct 1 ms 312 KB Output is correct
30 Correct 1 ms 212 KB Output is correct
31 Correct 6 ms 212 KB Output is correct
32 Correct 25 ms 212 KB Output is correct
33 Correct 7 ms 212 KB Output is correct
34 Correct 540 ms 296 KB Output is correct
35 Correct 23 ms 212 KB Output is correct
36 Correct 73 ms 332 KB Output is correct
37 Correct 325 ms 312 KB Output is correct
38 Correct 1669 ms 312 KB Output is correct
39 Correct 23 ms 212 KB Output is correct
40 Correct 1179 ms 308 KB Output is correct
41 Correct 1507 ms 300 KB Output is correct
42 Correct 1310 ms 300 KB Output is correct
43 Correct 663 ms 300 KB Output is correct
44 Correct 89 ms 212 KB Output is correct
45 Correct 1569 ms 300 KB Output is correct
46 Correct 1 ms 212 KB Output is correct
47 Correct 0 ms 312 KB Output is correct
48 Correct 1 ms 212 KB Output is correct
49 Incorrect 1 ms 212 KB Output isn't correct
50 Halted 0 ms 0 KB -

Subtask #5
0 / 27.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 1 ms 320 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 1 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 0 ms 212 KB Output is correct
10 Correct 0 ms 212 KB Output is correct
11 Correct 0 ms 212 KB Output is correct
12 Correct 1 ms 212 KB Output is correct
13 Correct 1 ms 340 KB Output is correct
14 Correct 1 ms 212 KB Output is correct
15 Correct 1 ms 212 KB Output is correct
16 Correct 1 ms 212 KB Output is correct
17 Correct 0 ms 212 KB Output is correct
18 Correct 1 ms 340 KB Output is correct
19 Correct 1 ms 212 KB Output is correct
20 Correct 3 ms 212 KB Output is correct
21 Correct 5 ms 212 KB Output is correct
22 Correct 6 ms 212 KB Output is correct
23 Correct 1 ms 212 KB Output is correct
24 Correct 6 ms 212 KB Output is correct
25 Correct 1 ms 212 KB Output is correct
26 Correct 1 ms 312 KB Output is correct
27 Correct 5 ms 316 KB Output is correct
28 Correct 2 ms 212 KB Output is correct
29 Correct 1 ms 312 KB Output is correct
30 Correct 1 ms 212 KB Output is correct
31 Correct 6 ms 212 KB Output is correct
32 Correct 25 ms 212 KB Output is correct
33 Correct 7 ms 212 KB Output is correct
34 Correct 540 ms 296 KB Output is correct
35 Correct 23 ms 212 KB Output is correct
36 Correct 73 ms 332 KB Output is correct
37 Correct 325 ms 312 KB Output is correct
38 Correct 1669 ms 312 KB Output is correct
39 Correct 23 ms 212 KB Output is correct
40 Correct 1179 ms 308 KB Output is correct
41 Correct 1507 ms 300 KB Output is correct
42 Correct 1310 ms 300 KB Output is correct
43 Correct 663 ms 300 KB Output is correct
44 Correct 89 ms 212 KB Output is correct
45 Correct 1569 ms 300 KB Output is correct
46 Correct 1 ms 212 KB Output is correct
47 Correct 0 ms 312 KB Output is correct
48 Correct 1 ms 212 KB Output is correct
49 Incorrect 1 ms 212 KB Output isn't correct
50 Halted 0 ms 0 KB -