#include <iostream>
#include <vector>
#include <string>
#include <algorithm>
int main()
{
// speed up std::cin & std::cout
std::ios::sync_with_stdio(false);
long long N;
int M;
std::vector<std::string> S;
std::vector<long long> K;
std::cin >> N >> M;
for(int i = 0; i < M; ++i) {
std::string S_i;
long long K_i;
std::cin >> S_i >> K_i;
S.push_back(S_i);
K.push_back(K_i);
}
long long minimum = 0;
long long global_count = 0;
for(int section = M - 1; section >= 0; --section) {
const std::string& S_i = S[section];
const long long K_i = K[section];
int local_count = 0, diff_minimum = 0;
for(int index = S_i.size() - 1; index >= 0; --index) {
const char c = S_i[index];
local_count += (c == 'F' ? 1 : -1);
diff_minimum = std::min(diff_minimum, local_count);
}
const long long candidate_first = global_count + diff_minimum;
const long long candidate_last = global_count + (K_i - 1) * local_count
+ diff_minimum;
minimum = std::min(minimum, std::min(candidate_first, candidate_last));
global_count += local_count * K_i;
}
long long answer;
// global_count = |female| - |male|
if(global_count < 0) {
answer = -1;
} else {
if(minimum >= -1) {
answer = 0;
} else {
answer = -(minimum + 1);
}
}
std::cout << answer << std::endl;
return 0;
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
348 KB |
Output is correct |
2 |
Correct |
0 ms |
348 KB |
Output is correct |
3 |
Correct |
0 ms |
348 KB |
Output is correct |
4 |
Correct |
0 ms |
348 KB |
Output is correct |
5 |
Correct |
0 ms |
344 KB |
Output is correct |
6 |
Correct |
0 ms |
348 KB |
Output is correct |
7 |
Correct |
0 ms |
348 KB |
Output is correct |
8 |
Correct |
0 ms |
348 KB |
Output is correct |
9 |
Correct |
0 ms |
348 KB |
Output is correct |
10 |
Correct |
1 ms |
348 KB |
Output is correct |
11 |
Correct |
0 ms |
348 KB |
Output is correct |
12 |
Correct |
0 ms |
348 KB |
Output is correct |
13 |
Correct |
0 ms |
348 KB |
Output is correct |
14 |
Correct |
0 ms |
348 KB |
Output is correct |
15 |
Correct |
0 ms |
348 KB |
Output is correct |
16 |
Correct |
0 ms |
348 KB |
Output is correct |
17 |
Correct |
0 ms |
348 KB |
Output is correct |
18 |
Correct |
0 ms |
344 KB |
Output is correct |
19 |
Correct |
0 ms |
348 KB |
Output is correct |
20 |
Correct |
0 ms |
348 KB |
Output is correct |
21 |
Correct |
0 ms |
348 KB |
Output is correct |
22 |
Correct |
0 ms |
348 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
348 KB |
Output is correct |
2 |
Correct |
0 ms |
348 KB |
Output is correct |
3 |
Correct |
0 ms |
348 KB |
Output is correct |
4 |
Correct |
0 ms |
348 KB |
Output is correct |
5 |
Correct |
0 ms |
344 KB |
Output is correct |
6 |
Correct |
0 ms |
348 KB |
Output is correct |
7 |
Correct |
0 ms |
348 KB |
Output is correct |
8 |
Correct |
0 ms |
348 KB |
Output is correct |
9 |
Correct |
0 ms |
348 KB |
Output is correct |
10 |
Correct |
1 ms |
348 KB |
Output is correct |
11 |
Correct |
0 ms |
348 KB |
Output is correct |
12 |
Correct |
0 ms |
348 KB |
Output is correct |
13 |
Correct |
0 ms |
348 KB |
Output is correct |
14 |
Correct |
0 ms |
348 KB |
Output is correct |
15 |
Correct |
0 ms |
348 KB |
Output is correct |
16 |
Correct |
0 ms |
348 KB |
Output is correct |
17 |
Correct |
0 ms |
348 KB |
Output is correct |
18 |
Correct |
0 ms |
344 KB |
Output is correct |
19 |
Correct |
0 ms |
348 KB |
Output is correct |
20 |
Correct |
0 ms |
348 KB |
Output is correct |
21 |
Correct |
0 ms |
348 KB |
Output is correct |
22 |
Correct |
0 ms |
348 KB |
Output is correct |
23 |
Correct |
1 ms |
1252 KB |
Output is correct |
24 |
Correct |
1 ms |
996 KB |
Output is correct |
25 |
Correct |
1 ms |
1120 KB |
Output is correct |
26 |
Correct |
1 ms |
1020 KB |
Output is correct |
27 |
Correct |
1 ms |
1000 KB |
Output is correct |
28 |
Correct |
1 ms |
1000 KB |
Output is correct |
29 |
Correct |
1 ms |
1000 KB |
Output is correct |
30 |
Correct |
1 ms |
988 KB |
Output is correct |
31 |
Correct |
1 ms |
1000 KB |
Output is correct |
32 |
Correct |
1 ms |
1000 KB |
Output is correct |
33 |
Correct |
1 ms |
1000 KB |
Output is correct |
34 |
Correct |
1 ms |
1000 KB |
Output is correct |
35 |
Correct |
1 ms |
1000 KB |
Output is correct |
36 |
Correct |
1 ms |
1000 KB |
Output is correct |
37 |
Correct |
1 ms |
1124 KB |
Output is correct |
38 |
Correct |
1 ms |
1000 KB |
Output is correct |
39 |
Correct |
1 ms |
1000 KB |
Output is correct |
40 |
Correct |
1 ms |
1000 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
348 KB |
Output is correct |
2 |
Correct |
0 ms |
348 KB |
Output is correct |
3 |
Correct |
0 ms |
348 KB |
Output is correct |
4 |
Correct |
0 ms |
348 KB |
Output is correct |
5 |
Correct |
0 ms |
344 KB |
Output is correct |
6 |
Correct |
0 ms |
348 KB |
Output is correct |
7 |
Correct |
0 ms |
348 KB |
Output is correct |
8 |
Correct |
0 ms |
348 KB |
Output is correct |
9 |
Correct |
0 ms |
348 KB |
Output is correct |
10 |
Correct |
1 ms |
348 KB |
Output is correct |
11 |
Correct |
0 ms |
348 KB |
Output is correct |
12 |
Correct |
0 ms |
348 KB |
Output is correct |
13 |
Correct |
0 ms |
348 KB |
Output is correct |
14 |
Correct |
0 ms |
348 KB |
Output is correct |
15 |
Correct |
0 ms |
348 KB |
Output is correct |
16 |
Correct |
0 ms |
348 KB |
Output is correct |
17 |
Correct |
0 ms |
348 KB |
Output is correct |
18 |
Correct |
0 ms |
344 KB |
Output is correct |
19 |
Correct |
0 ms |
348 KB |
Output is correct |
20 |
Correct |
0 ms |
348 KB |
Output is correct |
21 |
Correct |
0 ms |
348 KB |
Output is correct |
22 |
Correct |
0 ms |
348 KB |
Output is correct |
23 |
Correct |
1 ms |
1252 KB |
Output is correct |
24 |
Correct |
1 ms |
996 KB |
Output is correct |
25 |
Correct |
1 ms |
1120 KB |
Output is correct |
26 |
Correct |
1 ms |
1020 KB |
Output is correct |
27 |
Correct |
1 ms |
1000 KB |
Output is correct |
28 |
Correct |
1 ms |
1000 KB |
Output is correct |
29 |
Correct |
1 ms |
1000 KB |
Output is correct |
30 |
Correct |
1 ms |
988 KB |
Output is correct |
31 |
Correct |
1 ms |
1000 KB |
Output is correct |
32 |
Correct |
1 ms |
1000 KB |
Output is correct |
33 |
Correct |
1 ms |
1000 KB |
Output is correct |
34 |
Correct |
1 ms |
1000 KB |
Output is correct |
35 |
Correct |
1 ms |
1000 KB |
Output is correct |
36 |
Correct |
1 ms |
1000 KB |
Output is correct |
37 |
Correct |
1 ms |
1124 KB |
Output is correct |
38 |
Correct |
1 ms |
1000 KB |
Output is correct |
39 |
Correct |
1 ms |
1000 KB |
Output is correct |
40 |
Correct |
1 ms |
1000 KB |
Output is correct |
41 |
Correct |
17 ms |
6924 KB |
Output is correct |
42 |
Correct |
17 ms |
6864 KB |
Output is correct |
43 |
Correct |
1 ms |
344 KB |
Output is correct |
44 |
Correct |
0 ms |
348 KB |
Output is correct |
45 |
Correct |
1 ms |
348 KB |
Output is correct |
46 |
Correct |
3 ms |
1464 KB |
Output is correct |
47 |
Correct |
1 ms |
860 KB |
Output is correct |
48 |
Correct |
1 ms |
860 KB |
Output is correct |
49 |
Correct |
1 ms |
860 KB |
Output is correct |
50 |
Correct |
1 ms |
860 KB |
Output is correct |
51 |
Correct |
3 ms |
1524 KB |
Output is correct |
52 |
Correct |
18 ms |
6416 KB |
Output is correct |
53 |
Correct |
15 ms |
6416 KB |
Output is correct |
54 |
Correct |
15 ms |
6416 KB |
Output is correct |
55 |
Correct |
1 ms |
860 KB |
Output is correct |
56 |
Correct |
1 ms |
860 KB |
Output is correct |