Submission #548095

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
548095	2022-04-12 11:34:45	wmch13	Snake Escaping (JOI18_snake_escaping)	C++14	100 / 100	1087 ms	43308 KiB

snake_escaping

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#include <bits/stdc++.h>
#define F first
#define S second
#define pb push_back
#define mp make_pair
using namespace std;
typedef long long ll;
typedef pair <int, int> pii;
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>
using namespace __gnu_pbds;
 
#define ordered_set tree<pair<ll,int>, null_type,less<pair<ll,int>>, rb_tree_tag,tree_order_statistics_node_update>
const int INF = 1e7;
const ll longINF = 1e17;
const int mxN = 1 << 20;
const int mxM = 1e5 + 9;
const int MOD = 998244353;
const double pi = acos (-1);
void setIO (string s) {
  freopen ((s + ".in").c_str(), "r", stdin);
  freopen ((s + ".out").c_str(), "w", stdout);
  
  return;
}
 
 
הההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההה
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Compilation message (stderr)

snake_escaping.cpp: In function 'void setIO(std::string)':
snake_escaping.cpp:25:10: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   25 |  freopen ((s + ".in").c_str(), "r", stdin);
      |  ~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
snake_escaping.cpp:26:10: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   26 |  freopen ((s + ".out").c_str(), "w", stdout);
      |  ~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

• Subtask 1: 5 / 5
• Subtask 2: 7 / 7
• Subtask 3: 10 / 10
• Subtask 4: 53 / 53
• Subtask 5: 25 / 25