Submission #757467

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
757467	2023-06-13 08:21:29	The_Samurai	Tracks in the Snow (BOI13_tracks)	C++17	49.69 / 100	2085 ms	165656 KiB

tracks

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
#include "bits/stdc++.h"
using namespace std;
int INF = 1e9;
vector<int> dx = {1, -1, 0, 0};
vector<int> dy = {0, 0, 1, -1};
int main() {
    ios_base::sync_with_stdio(false); cin.tie(nullptr); cout.tie(nullptr);
    clock_t startTime = clock();
    int n, m;
    cin >> n >> m;
    vector<vector<char>> a(n, vector<char>(m, '.'));
    auto nw = a;
    for (int i = 0; i < n; i++) {
        for (int j = 0; j < m; j++) {
            cin >> a[i][j];
        }
    }
    if (max(n, m) == 1) {
        cout << 1;
        return 0;
    }
    vector<pair<int, int>> can = {{0, 0}};
    vector<vector<bool>> vis(n, vector<bool>(m));
    char x = a[0][0];
    nw[0][0] = x;
    vis[0][0] = true;
 
 
הההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההה
XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX

Compilation message (stderr)

tracks.cpp: In function 'int main()':
tracks.cpp:34:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   34 |         for (int p = 0; p < can.size(); p++) {
      |                         ~~^~~~~~~~~~~~
tracks.cpp:11:13: warning: unused variable 'startTime' [-Wunused-variable]
   11 |     clock_t startTime = clock();
      |             ^~~~~~~~~

• Subtask 1: 30 / 30
• Subtask 2: 19.6875 / 70