Submission #258512

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
258512	2020-08-06T05:18:02 Z	arnold518	Toilets (JOI16_toilets)	C++14	36 / 100	16 ms	6928 KB

toilets

#include <bits/stdc++.h>
using namespace std;

typedef long long ll;
typedef pair<int, int> pii;
typedef pair<ll, ll> pll;

const ll MAXN = 1e18;
const int MAXM = 2e5;

ll N; int M;
string S[MAXM+10];
int K[MAXM+10];

int main()
{
	int i, j;

	cin>>N>>M;
	for(i=1; i<=M; i++) cin>>S[i]>>K[i];

	ll sum=0, ans=1;
	for(i=M; i>=1; i--)
	{
		ll t=0, k=0;
		for(j=S[i].size()-1; j>=0; j--)
		{
			if(S[i][j]=='F') t--;
			else t++;
			k=max(k, t);
		}
		ans=max(ans, max(sum+k, sum+(ll)t*(K[i]-1)+k));
		sum+=(ll)K[i]*t;
		ans=max(ans, sum);
	}

	if(sum>0) return !printf("-1\n");
	printf("%lld\n", ans-1);
}

Subtask #1

14.0 / 14.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	4 ms	6528 KB	Output is correct
2	Correct	5 ms	6528 KB	Output is correct
3	Correct	4 ms	6528 KB	Output is correct
4	Correct	4 ms	6528 KB	Output is correct
5	Correct	5 ms	6528 KB	Output is correct
6	Correct	4 ms	6600 KB	Output is correct
7	Correct	6 ms	6528 KB	Output is correct
8	Correct	4 ms	6528 KB	Output is correct
9	Correct	6 ms	6528 KB	Output is correct
10	Correct	4 ms	6528 KB	Output is correct
11	Correct	4 ms	6528 KB	Output is correct
12	Correct	5 ms	6528 KB	Output is correct
13	Correct	5 ms	6528 KB	Output is correct
14	Correct	4 ms	6528 KB	Output is correct
15	Correct	4 ms	6528 KB	Output is correct
16	Correct	4 ms	6528 KB	Output is correct
17	Correct	4 ms	6528 KB	Output is correct
18	Correct	4 ms	6656 KB	Output is correct
19	Correct	4 ms	6528 KB	Output is correct
20	Correct	4 ms	6656 KB	Output is correct
21	Correct	4 ms	6528 KB	Output is correct
22	Correct	5 ms	6528 KB	Output is correct

Subtask #2

22.0 / 22.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	4 ms	6528 KB	Output is correct
2	Correct	5 ms	6528 KB	Output is correct
3	Correct	4 ms	6528 KB	Output is correct
4	Correct	4 ms	6528 KB	Output is correct
5	Correct	5 ms	6528 KB	Output is correct
6	Correct	4 ms	6600 KB	Output is correct
7	Correct	6 ms	6528 KB	Output is correct
8	Correct	4 ms	6528 KB	Output is correct
9	Correct	6 ms	6528 KB	Output is correct
10	Correct	4 ms	6528 KB	Output is correct
11	Correct	4 ms	6528 KB	Output is correct
12	Correct	5 ms	6528 KB	Output is correct
13	Correct	5 ms	6528 KB	Output is correct
14	Correct	4 ms	6528 KB	Output is correct
15	Correct	4 ms	6528 KB	Output is correct
16	Correct	4 ms	6528 KB	Output is correct
17	Correct	4 ms	6528 KB	Output is correct
18	Correct	4 ms	6656 KB	Output is correct
19	Correct	4 ms	6528 KB	Output is correct
20	Correct	4 ms	6656 KB	Output is correct
21	Correct	4 ms	6528 KB	Output is correct
22	Correct	5 ms	6528 KB	Output is correct
23	Correct	14 ms	6928 KB	Output is correct
24	Correct	16 ms	6928 KB	Output is correct
25	Correct	14 ms	6928 KB	Output is correct
26	Correct	14 ms	6928 KB	Output is correct
27	Correct	14 ms	6928 KB	Output is correct
28	Correct	15 ms	6928 KB	Output is correct
29	Correct	15 ms	6928 KB	Output is correct
30	Correct	14 ms	6928 KB	Output is correct
31	Correct	16 ms	6928 KB	Output is correct
32	Correct	14 ms	6928 KB	Output is correct
33	Correct	14 ms	6928 KB	Output is correct
34	Correct	14 ms	6928 KB	Output is correct
35	Correct	15 ms	6928 KB	Output is correct
36	Correct	15 ms	6928 KB	Output is correct
37	Correct	14 ms	6928 KB	Output is correct
38	Correct	16 ms	6928 KB	Output is correct
39	Correct	14 ms	6928 KB	Output is correct
40	Correct	14 ms	6928 KB	Output is correct

Subtask #3

0 / 64.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	4 ms	6528 KB	Output is correct
2	Correct	5 ms	6528 KB	Output is correct
3	Correct	4 ms	6528 KB	Output is correct
4	Correct	4 ms	6528 KB	Output is correct
5	Correct	5 ms	6528 KB	Output is correct
6	Correct	4 ms	6600 KB	Output is correct
7	Correct	6 ms	6528 KB	Output is correct
8	Correct	4 ms	6528 KB	Output is correct
9	Correct	6 ms	6528 KB	Output is correct
10	Correct	4 ms	6528 KB	Output is correct
11	Correct	4 ms	6528 KB	Output is correct
12	Correct	5 ms	6528 KB	Output is correct
13	Correct	5 ms	6528 KB	Output is correct
14	Correct	4 ms	6528 KB	Output is correct
15	Correct	4 ms	6528 KB	Output is correct
16	Correct	4 ms	6528 KB	Output is correct
17	Correct	4 ms	6528 KB	Output is correct
18	Correct	4 ms	6656 KB	Output is correct
19	Correct	4 ms	6528 KB	Output is correct
20	Correct	4 ms	6656 KB	Output is correct
21	Correct	4 ms	6528 KB	Output is correct
22	Correct	5 ms	6528 KB	Output is correct
23	Correct	14 ms	6928 KB	Output is correct
24	Correct	16 ms	6928 KB	Output is correct
25	Correct	14 ms	6928 KB	Output is correct
26	Correct	14 ms	6928 KB	Output is correct
27	Correct	14 ms	6928 KB	Output is correct
28	Correct	15 ms	6928 KB	Output is correct
29	Correct	15 ms	6928 KB	Output is correct
30	Correct	14 ms	6928 KB	Output is correct
31	Correct	16 ms	6928 KB	Output is correct
32	Correct	14 ms	6928 KB	Output is correct
33	Correct	14 ms	6928 KB	Output is correct
34	Correct	14 ms	6928 KB	Output is correct
35	Correct	15 ms	6928 KB	Output is correct
36	Correct	15 ms	6928 KB	Output is correct
37	Correct	14 ms	6928 KB	Output is correct
38	Correct	16 ms	6928 KB	Output is correct
39	Correct	14 ms	6928 KB	Output is correct
40	Correct	14 ms	6928 KB	Output is correct
41	Correct	6 ms	6528 KB	Output is correct
42	Incorrect	7 ms	6528 KB	Output isn't correct
43	Halted	0 ms	0 KB	-