Submission #693332

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
693332	2023-02-02T20:25:28 Z	rainboy	Toilets (JOI16_toilets)	C	100 / 100	20 ms	1364 KB

toilets

#include <stdio.h>
#include <string.h>

#define N	200000

long long max(long long a, long long b) { return a > b ? a : b; }

int main() {
	int m;
	long long n, sum_, suf_;

	scanf("%lld%d", &n, &m);
	sum_ = 0, suf_ = 0;
	while (m--) {
		static char cc[N + 1];
		int n, i;
		long long k, sum, suf;

		scanf("%s%lld", cc, &k), n = strlen(cc);
		sum = suf = 0;
		for (i = 0; i < n; i++) {
			sum += cc[i] == 'M' ? 1 : -1;
			if ((suf += (cc[i] == 'M' ? 1 : -1)) < 0)
				suf = 0;
		}
		sum_ += sum * k, suf_ = max(suf_ + sum * k, max(sum * (k - 1), 0) + suf);
	}
	printf("%lld\n", sum_ > 0 ? -1 : (suf_ == 0 ? 0 : suf_ - 1));
	return 0;
}

Compilation message

toilets.c: In function 'main':
toilets.c:12:2: warning: ignoring return value of 'scanf' declared with attribute 'warn_unused_result' [-Wunused-result]
   12 |  scanf("%lld%d", &n, &m);
      |  ^~~~~~~~~~~~~~~~~~~~~~~
toilets.c:19:3: warning: ignoring return value of 'scanf' declared with attribute 'warn_unused_result' [-Wunused-result]
   19 |   scanf("%s%lld", cc, &k), n = strlen(cc);
      |   ^~~~~~~~~~~~~~~~~~~~~~~

Subtask #1

14.0 / 14.0

#	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	0 ms	212 KB	Output is correct
4	Correct	0 ms	212 KB	Output is correct
5	Correct	0 ms	212 KB	Output is correct
6	Correct	0 ms	212 KB	Output is correct
7	Correct	0 ms	212 KB	Output is correct
8	Correct	0 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	0 ms	212 KB	Output is correct
13	Correct	1 ms	212 KB	Output is correct
14	Correct	0 ms	212 KB	Output is correct
15	Correct	0 ms	212 KB	Output is correct
16	Correct	0 ms	212 KB	Output is correct
17	Correct	0 ms	212 KB	Output is correct
18	Correct	0 ms	212 KB	Output is correct
19	Correct	0 ms	212 KB	Output is correct
20	Correct	0 ms	212 KB	Output is correct
21	Correct	0 ms	212 KB	Output is correct
22	Correct	0 ms	212 KB	Output is correct

Subtask #2

22.0 / 22.0

#	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	0 ms	212 KB	Output is correct
4	Correct	0 ms	212 KB	Output is correct
5	Correct	0 ms	212 KB	Output is correct
6	Correct	0 ms	212 KB	Output is correct
7	Correct	0 ms	212 KB	Output is correct
8	Correct	0 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	0 ms	212 KB	Output is correct
13	Correct	1 ms	212 KB	Output is correct
14	Correct	0 ms	212 KB	Output is correct
15	Correct	0 ms	212 KB	Output is correct
16	Correct	0 ms	212 KB	Output is correct
17	Correct	0 ms	212 KB	Output is correct
18	Correct	0 ms	212 KB	Output is correct
19	Correct	0 ms	212 KB	Output is correct
20	Correct	0 ms	212 KB	Output is correct
21	Correct	0 ms	212 KB	Output is correct
22	Correct	0 ms	212 KB	Output is correct
23	Correct	1 ms	468 KB	Output is correct
24	Correct	1 ms	468 KB	Output is correct
25	Correct	1 ms	468 KB	Output is correct
26	Correct	1 ms	468 KB	Output is correct
27	Correct	1 ms	468 KB	Output is correct
28	Correct	2 ms	596 KB	Output is correct
29	Correct	1 ms	468 KB	Output is correct
30	Correct	2 ms	468 KB	Output is correct
31	Correct	1 ms	468 KB	Output is correct
32	Correct	1 ms	468 KB	Output is correct
33	Correct	1 ms	468 KB	Output is correct
34	Correct	1 ms	468 KB	Output is correct
35	Correct	1 ms	468 KB	Output is correct
36	Correct	1 ms	468 KB	Output is correct
37	Correct	1 ms	468 KB	Output is correct
38	Correct	1 ms	468 KB	Output is correct
39	Correct	1 ms	468 KB	Output is correct
40	Correct	1 ms	468 KB	Output is correct

Subtask #3

64.0 / 64.0

#	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	0 ms	212 KB	Output is correct
4	Correct	0 ms	212 KB	Output is correct
5	Correct	0 ms	212 KB	Output is correct
6	Correct	0 ms	212 KB	Output is correct
7	Correct	0 ms	212 KB	Output is correct
8	Correct	0 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	0 ms	212 KB	Output is correct
13	Correct	1 ms	212 KB	Output is correct
14	Correct	0 ms	212 KB	Output is correct
15	Correct	0 ms	212 KB	Output is correct
16	Correct	0 ms	212 KB	Output is correct
17	Correct	0 ms	212 KB	Output is correct
18	Correct	0 ms	212 KB	Output is correct
19	Correct	0 ms	212 KB	Output is correct
20	Correct	0 ms	212 KB	Output is correct
21	Correct	0 ms	212 KB	Output is correct
22	Correct	0 ms	212 KB	Output is correct
23	Correct	1 ms	468 KB	Output is correct
24	Correct	1 ms	468 KB	Output is correct
25	Correct	1 ms	468 KB	Output is correct
26	Correct	1 ms	468 KB	Output is correct
27	Correct	1 ms	468 KB	Output is correct
28	Correct	2 ms	596 KB	Output is correct
29	Correct	1 ms	468 KB	Output is correct
30	Correct	2 ms	468 KB	Output is correct
31	Correct	1 ms	468 KB	Output is correct
32	Correct	1 ms	468 KB	Output is correct
33	Correct	1 ms	468 KB	Output is correct
34	Correct	1 ms	468 KB	Output is correct
35	Correct	1 ms	468 KB	Output is correct
36	Correct	1 ms	468 KB	Output is correct
37	Correct	1 ms	468 KB	Output is correct
38	Correct	1 ms	468 KB	Output is correct
39	Correct	1 ms	468 KB	Output is correct
40	Correct	1 ms	468 KB	Output is correct
41	Correct	20 ms	212 KB	Output is correct
42	Correct	20 ms	292 KB	Output is correct
43	Correct	0 ms	292 KB	Output is correct
44	Correct	0 ms	212 KB	Output is correct
45	Correct	0 ms	212 KB	Output is correct
46	Correct	4 ms	596 KB	Output is correct
47	Correct	2 ms	408 KB	Output is correct
48	Correct	2 ms	468 KB	Output is correct
49	Correct	2 ms	468 KB	Output is correct
50	Correct	2 ms	404 KB	Output is correct
51	Correct	4 ms	596 KB	Output is correct
52	Correct	18 ms	1300 KB	Output is correct
53	Correct	18 ms	1364 KB	Output is correct
54	Correct	17 ms	1296 KB	Output is correct
55	Correct	2 ms	400 KB	Output is correct
56	Correct	2 ms	468 KB	Output is correct