oj.uz

Submission #540865

# Submission time Handle Problem Language Result Execution time Memory
540865 2022-03-21T21:21:52 Z Olympia Nautilus (BOI19_nautilus) C++17
66 / 100
 1000 ms 51452 KB 
#include <cmath>
#include <iostream>
#include <set>
#include <climits>
#include <cstdio>
#include <algorithm>
#include <cassert>
#include <string>
#include <vector>
#include <iomanip>
#include <unordered_map>
#include <type_traits>
#include <string>
#include <queue>
#define ll long long
#include <map>

using namespace std;
vector<string> vec;
int main() {
    ios_base::sync_with_stdio(false);
    cin.tie(NULL);
    set<pair<int,int>> pos;
    int R, C, M;
    cin >> R >> C >> M;
    vec.resize(R);
    for (int i = 0; i < R; i++) {
        cin >> vec[i];
        assert(vec[i].size() == C);
    }
    string s;
    cin >> s;
    set<pair<int,int>> orig;
    for (int i = 0; i < R; i++) {
        for (int j = 0; j < C; j++) {
            if (vec[i][j] == '.') {
                pos.insert({i, j});
            }
        }
    }
    orig = pos;
    map<char,pair<int,int>> myMap;
    myMap['W'] = {0, -1};
    myMap['E'] = {0, 1};
    myMap['S'] = {1, 0};
    myMap['N'] = {-1, 0};
    for (int i = 0; i < s.length(); i++) {
        set<pair<int,int>> valid;
        for (char c: {'W', 'N', 'S', 'E'}) {
            if (s[i] == c || s[i] == '?') {
                set<pair<int,int>> new_pos;
                for (auto& p: pos) {
                    int dx = p.first + myMap[c].first;
                    int dy = p.second + myMap[c].second;
                    new_pos.insert({dx, dy});
                }
                vector<pair<int,int>> res;
                set_intersection(new_pos.begin(), new_pos.end(), orig.begin(), orig.end(), std::back_inserter(res));
                for (auto& p: res) {
                    valid.insert(p);
                }
            }
        }
        pos = valid;
    }
    cout << pos.size() << '\n';
}

Compilation message

In file included from /usr/include/c++/10/cassert:44,
                 from nautilus.cpp:7:
nautilus.cpp: In function 'int main()':
nautilus.cpp:29:30: warning: comparison of integer expressions of different signedness: 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   29 |         assert(vec[i].size() == C);
      |                ~~~~~~~~~~~~~~^~~~
nautilus.cpp:47:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   47 |     for (int i = 0; i < s.length(); i++) {
      |                     ~~^~~~~~~~~~~~

Subtask #1
29.0 / 29.0

# Verdict Execution time Memory Grader output
1 Correct 249 ms 2304 KB Output is correct
2 Correct 24 ms 1816 KB Output is correct
3 Correct 10 ms 1388 KB Output is correct
4 Correct 5 ms 980 KB Output is correct
5 Correct 3 ms 596 KB Output is correct
6 Correct 1 ms 340 KB Output is correct

Subtask #2
37.0 / 37.0

# Verdict Execution time Memory Grader output
1 Correct 249 ms 2304 KB Output is correct
2 Correct 24 ms 1816 KB Output is correct
3 Correct 10 ms 1388 KB Output is correct
4 Correct 5 ms 980 KB Output is correct
5 Correct 3 ms 596 KB Output is correct
6 Correct 1 ms 340 KB Output is correct
7 Correct 465 ms 2488 KB Output is correct
8 Correct 103 ms 1364 KB Output is correct
9 Correct 29 ms 980 KB Output is correct
10 Correct 13 ms 688 KB Output is correct
11 Correct 4 ms 348 KB Output is correct
12 Correct 726 ms 2460 KB Output is correct
13 Correct 567 ms 1984 KB Output is correct
14 Correct 341 ms 1480 KB Output is correct
15 Correct 26 ms 596 KB Output is correct
16 Correct 3 ms 340 KB Output is correct
17 Correct 943 ms 2532 KB Output is correct
18 Correct 752 ms 1996 KB Output is correct
19 Correct 328 ms 1076 KB Output is correct
20 Correct 110 ms 672 KB Output is correct
21 Correct 4 ms 340 KB Output is correct

Subtask #3
0 / 34.0

# Verdict Execution time Memory Grader output
1 Correct 249 ms 2304 KB Output is correct
2 Correct 24 ms 1816 KB Output is correct
3 Correct 10 ms 1388 KB Output is correct
4 Correct 5 ms 980 KB Output is correct
5 Correct 3 ms 596 KB Output is correct
6 Correct 1 ms 340 KB Output is correct
7 Correct 465 ms 2488 KB Output is correct
8 Correct 103 ms 1364 KB Output is correct
9 Correct 29 ms 980 KB Output is correct
10 Correct 13 ms 688 KB Output is correct
11 Correct 4 ms 348 KB Output is correct
12 Correct 726 ms 2460 KB Output is correct
13 Correct 567 ms 1984 KB Output is correct
14 Correct 341 ms 1480 KB Output is correct
15 Correct 26 ms 596 KB Output is correct
16 Correct 3 ms 340 KB Output is correct
17 Correct 943 ms 2532 KB Output is correct
18 Correct 752 ms 1996 KB Output is correct
19 Correct 328 ms 1076 KB Output is correct
20 Correct 110 ms 672 KB Output is correct
21 Correct 4 ms 340 KB Output is correct
22 Execution timed out 1045 ms 51452 KB Time limit exceeded
23 Halted 0 ms 0 KB -