Submission #257977

# Submission time Handle Problem Language Result Execution time Memory
257977 2020-08-05T06:59:02 Z 임성재(#5053) Toilets (JOI16_toilets) C++17
100 / 100
43 ms 6184 KB
#include<bits/stdc++.h>
using namespace std;

#define fast ios::sync_with_stdio(false); cin.tie(NULL)
#define fi first
#define se second
#define pb push_back
#define eb emplace_back
#define em emplace
#define all(v) (v).begin(), (v).end()
#define pre(a) cout<<fixed; cout.precision(a)
#define mp make_pair

typedef long long ll;
typedef pair<int,int> pii;
typedef pair<ll,ll> pll;
const int inf = 1e9;
const ll INF = 1e18;

ll n, m;
string s[100010];
ll k[100010];
ll dp[400010];
vector<pll> v;

int main() {
	fast;

	cin >> n;
	cin >> m;

	for(int i=1; i<=m; i++) {
		cin >> s[i] >> k[i];

		reverse(all(s[i]));

		ll mx = -INF * 2;

		for(int j=0; j<s[i].size(); j++) {
			dp[j+1] = dp[j];

			if(s[i][j] == 'F') dp[j+1]--;
			else dp[j+1]++;

			if(s[i][j] == 'F') mx = max(mx, dp[j+1]);
		}

		v.eb(max(mx, mx + (k[i]-1) * dp[s[i].size()]), dp[s[i].size()] * k[i]);
	}

	reverse(all(v));

	ll ans = 0;
	ll cur = 0;
	for(auto i : v) {
		ans = max(ans, i.fi + cur);
		//cout << ans << " " << cur << endl;
		cur += i.se;
	}

	if(cur > 0) cout << -1;
	else cout << ans;
}

Compilation message

toilets.cpp: In function 'int main()':
toilets.cpp:39:17: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
   for(int j=0; j<s[i].size(); j++) {
                ~^~~~~~~~~~~~
# Verdict Execution time Memory Grader output
1 Correct 3 ms 3456 KB Output is correct
2 Correct 3 ms 3456 KB Output is correct
3 Correct 3 ms 3456 KB Output is correct
4 Correct 3 ms 3456 KB Output is correct
5 Correct 2 ms 3456 KB Output is correct
6 Correct 2 ms 3456 KB Output is correct
7 Correct 2 ms 3456 KB Output is correct
8 Correct 3 ms 3456 KB Output is correct
9 Correct 2 ms 3456 KB Output is correct
10 Correct 2 ms 3456 KB Output is correct
11 Correct 2 ms 3456 KB Output is correct
12 Correct 2 ms 3456 KB Output is correct
13 Correct 2 ms 3456 KB Output is correct
14 Correct 2 ms 3456 KB Output is correct
15 Correct 2 ms 3456 KB Output is correct
16 Correct 2 ms 3456 KB Output is correct
17 Correct 2 ms 3456 KB Output is correct
18 Correct 2 ms 3456 KB Output is correct
19 Correct 2 ms 3456 KB Output is correct
20 Correct 2 ms 3456 KB Output is correct
21 Correct 2 ms 3456 KB Output is correct
22 Correct 2 ms 3456 KB Output is correct
# Verdict Execution time Memory Grader output
1 Correct 3 ms 3456 KB Output is correct
2 Correct 3 ms 3456 KB Output is correct
3 Correct 3 ms 3456 KB Output is correct
4 Correct 3 ms 3456 KB Output is correct
5 Correct 2 ms 3456 KB Output is correct
6 Correct 2 ms 3456 KB Output is correct
7 Correct 2 ms 3456 KB Output is correct
8 Correct 3 ms 3456 KB Output is correct
9 Correct 2 ms 3456 KB Output is correct
10 Correct 2 ms 3456 KB Output is correct
11 Correct 2 ms 3456 KB Output is correct
12 Correct 2 ms 3456 KB Output is correct
13 Correct 2 ms 3456 KB Output is correct
14 Correct 2 ms 3456 KB Output is correct
15 Correct 2 ms 3456 KB Output is correct
16 Correct 2 ms 3456 KB Output is correct
17 Correct 2 ms 3456 KB Output is correct
18 Correct 2 ms 3456 KB Output is correct
19 Correct 2 ms 3456 KB Output is correct
20 Correct 2 ms 3456 KB Output is correct
21 Correct 2 ms 3456 KB Output is correct
22 Correct 2 ms 3456 KB Output is correct
23 Correct 5 ms 5388 KB Output is correct
24 Correct 5 ms 5388 KB Output is correct
25 Correct 5 ms 5388 KB Output is correct
26 Correct 4 ms 5388 KB Output is correct
27 Correct 4 ms 5388 KB Output is correct
28 Correct 5 ms 5388 KB Output is correct
29 Correct 5 ms 5388 KB Output is correct
30 Correct 4 ms 5388 KB Output is correct
31 Correct 4 ms 5388 KB Output is correct
32 Correct 5 ms 5388 KB Output is correct
33 Correct 6 ms 5388 KB Output is correct
34 Correct 4 ms 5388 KB Output is correct
35 Correct 7 ms 5388 KB Output is correct
36 Correct 5 ms 5388 KB Output is correct
37 Correct 4 ms 5388 KB Output is correct
38 Correct 6 ms 5388 KB Output is correct
39 Correct 4 ms 5388 KB Output is correct
40 Correct 6 ms 5388 KB Output is correct
# Verdict Execution time Memory Grader output
1 Correct 3 ms 3456 KB Output is correct
2 Correct 3 ms 3456 KB Output is correct
3 Correct 3 ms 3456 KB Output is correct
4 Correct 3 ms 3456 KB Output is correct
5 Correct 2 ms 3456 KB Output is correct
6 Correct 2 ms 3456 KB Output is correct
7 Correct 2 ms 3456 KB Output is correct
8 Correct 3 ms 3456 KB Output is correct
9 Correct 2 ms 3456 KB Output is correct
10 Correct 2 ms 3456 KB Output is correct
11 Correct 2 ms 3456 KB Output is correct
12 Correct 2 ms 3456 KB Output is correct
13 Correct 2 ms 3456 KB Output is correct
14 Correct 2 ms 3456 KB Output is correct
15 Correct 2 ms 3456 KB Output is correct
16 Correct 2 ms 3456 KB Output is correct
17 Correct 2 ms 3456 KB Output is correct
18 Correct 2 ms 3456 KB Output is correct
19 Correct 2 ms 3456 KB Output is correct
20 Correct 2 ms 3456 KB Output is correct
21 Correct 2 ms 3456 KB Output is correct
22 Correct 2 ms 3456 KB Output is correct
23 Correct 5 ms 5388 KB Output is correct
24 Correct 5 ms 5388 KB Output is correct
25 Correct 5 ms 5388 KB Output is correct
26 Correct 4 ms 5388 KB Output is correct
27 Correct 4 ms 5388 KB Output is correct
28 Correct 5 ms 5388 KB Output is correct
29 Correct 5 ms 5388 KB Output is correct
30 Correct 4 ms 5388 KB Output is correct
31 Correct 4 ms 5388 KB Output is correct
32 Correct 5 ms 5388 KB Output is correct
33 Correct 6 ms 5388 KB Output is correct
34 Correct 4 ms 5388 KB Output is correct
35 Correct 7 ms 5388 KB Output is correct
36 Correct 5 ms 5388 KB Output is correct
37 Correct 4 ms 5388 KB Output is correct
38 Correct 6 ms 5388 KB Output is correct
39 Correct 4 ms 5388 KB Output is correct
40 Correct 6 ms 5388 KB Output is correct
41 Correct 40 ms 6184 KB Output is correct
42 Correct 43 ms 6136 KB Output is correct
43 Correct 2 ms 3456 KB Output is correct
44 Correct 2 ms 3456 KB Output is correct
45 Correct 3 ms 3456 KB Output is correct
46 Correct 7 ms 3968 KB Output is correct
47 Correct 4 ms 3712 KB Output is correct
48 Correct 4 ms 3712 KB Output is correct
49 Correct 4 ms 3712 KB Output is correct
50 Correct 4 ms 3712 KB Output is correct
51 Correct 7 ms 3968 KB Output is correct
52 Correct 25 ms 6136 KB Output is correct
53 Correct 26 ms 6136 KB Output is correct
54 Correct 25 ms 6136 KB Output is correct
55 Correct 4 ms 3712 KB Output is correct
56 Correct 3 ms 3712 KB Output is correct