oj.uz

Submission #849293

# Submission time Handle Problem Language Result Execution time Memory
849293 2023-09-14T11:48:13 Z mickey080929 Toilets (JOI16_toilets) C++17
100 / 100
 19 ms 8648 KB 
#include <bits/stdc++.h>
#pragma GCC optimize("O3")
#pragma GCC optimize("Ofast")
#pragma GCC optimize("unroll-loops")

using namespace std;
typedef long long ll;

ll N, M;
vector<pair<string,ll>> v;

int main() {
    ios_base :: sync_with_stdio(false);
    cin.tie(NULL);
    cin >> N >> M;
    ll male = 0;
    for (ll i=0; i<M; i++) {
        string s;
        ll rep;
        cin >> s >> rep;
        male += count(s.begin(), s.end(), 'M') * rep;
        reverse(s.begin(), s.end());
        v.emplace_back(s, rep);
    }
    if (male > N) {
        cout << "-1";
        return 0;
    }
    reverse(v.begin(), v.end());
    M = (ll) v.size();
    ll val = 0;
    ll ans = 0;
    for (ll i=0; i<M; i++) {
        auto &[s, rep] = v[i];
        ll sum = 2 * count(s.begin(), s.end(), 'M') - (ll) s.size();
        for (ll j=0; j<s.size(); j++) {
            if (s[j] == 'M') val ++;
            else val --;
            ans = max(ans, val - 1);
            ans = max(ans, (val + sum*(rep-1)) - 1);
        }
        val += sum * (rep-1);
    }
    cout << ans;

    return 0;
}

Compilation message

toilets.cpp: In function 'int main()':
toilets.cpp:36:23: warning: comparison of integer expressions of different signedness: 'll' {aka 'long long int'} and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   36 |         for (ll j=0; j<s.size(); j++) {
      |                      ~^~~~~~~~~

Subtask #1
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 344 KB Output is correct
2 Correct 1 ms 348 KB Output is correct
3 Correct 0 ms 344 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 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 0 ms 456 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 456 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 0 ms 348 KB Output is correct
17 Correct 1 ms 344 KB Output is correct
18 Correct 1 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

Subtask #2
22.0 / 22.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 344 KB Output is correct
2 Correct 1 ms 348 KB Output is correct
3 Correct 0 ms 344 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 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 0 ms 456 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 456 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 0 ms 348 KB Output is correct
17 Correct 1 ms 344 KB Output is correct
18 Correct 1 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 2 ms 1000 KB Output is correct
24 Correct 2 ms 1000 KB Output is correct
25 Correct 2 ms 1000 KB Output is correct
26 Correct 1 ms 1000 KB Output is correct
27 Correct 2 ms 1000 KB Output is correct
28 Correct 2 ms 984 KB Output is correct
29 Correct 2 ms 996 KB Output is correct
30 Correct 2 ms 1000 KB Output is correct
31 Correct 2 ms 1000 KB Output is correct
32 Correct 2 ms 996 KB Output is correct
33 Correct 1 ms 1120 KB Output is correct
34 Correct 2 ms 1000 KB Output is correct
35 Correct 2 ms 1000 KB Output is correct
36 Correct 2 ms 1000 KB Output is correct
37 Correct 1 ms 984 KB Output is correct
38 Correct 1 ms 1000 KB Output is correct
39 Correct 2 ms 988 KB Output is correct
40 Correct 2 ms 996 KB Output is correct

Subtask #3
64.0 / 64.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 344 KB Output is correct
2 Correct 1 ms 348 KB Output is correct
3 Correct 0 ms 344 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 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 0 ms 456 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 456 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 0 ms 348 KB Output is correct
17 Correct 1 ms 344 KB Output is correct
18 Correct 1 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 2 ms 1000 KB Output is correct
24 Correct 2 ms 1000 KB Output is correct
25 Correct 2 ms 1000 KB Output is correct
26 Correct 1 ms 1000 KB Output is correct
27 Correct 2 ms 1000 KB Output is correct
28 Correct 2 ms 984 KB Output is correct
29 Correct 2 ms 996 KB Output is correct
30 Correct 2 ms 1000 KB Output is correct
31 Correct 2 ms 1000 KB Output is correct
32 Correct 2 ms 996 KB Output is correct
33 Correct 1 ms 1120 KB Output is correct
34 Correct 2 ms 1000 KB Output is correct
35 Correct 2 ms 1000 KB Output is correct
36 Correct 2 ms 1000 KB Output is correct
37 Correct 1 ms 984 KB Output is correct
38 Correct 1 ms 1000 KB Output is correct
39 Correct 2 ms 988 KB Output is correct
40 Correct 2 ms 996 KB Output is correct
41 Correct 19 ms 7672 KB Output is correct
42 Correct 19 ms 8648 KB Output is correct
43 Correct 0 ms 348 KB Output is correct
44 Correct 0 ms 348 KB Output is correct
45 Correct 1 ms 344 KB Output is correct
46 Correct 5 ms 1500 KB Output is correct
47 Correct 2 ms 948 KB Output is correct
48 Correct 2 ms 860 KB Output is correct
49 Correct 2 ms 860 KB Output is correct
50 Correct 2 ms 852 KB Output is correct
51 Correct 5 ms 1464 KB Output is correct
52 Correct 17 ms 7436 KB Output is correct
53 Correct 17 ms 8392 KB Output is correct
54 Correct 17 ms 7624 KB Output is correct
55 Correct 1 ms 860 KB Output is correct
56 Correct 2 ms 860 KB Output is correct