Submission #438706

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
438706	2021-06-28 14:02:04	O_o	Tracks in the Snow (BOI13_tracks)	C++14	100 / 100	1112 ms	239608 KiB

tracks

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#include <bits/stdc++.h>
using namespace std;
#define int long long
#define ld long double
#define rep(i,a,b) for(int i=a;i<b;i++)
#define repb(i,a,b) for(int i=a;i>=b;i--)
#define pb push_back
#define mp make_pair
#define all(A) A.begin(),A.end()
#define allr(A) A.rbegin(),A.rend()
#define precise(i) fixed << setprecision(i)
#define fi first
#define se second
#define sz(x) ((int)(x).size())
#define err() cout<<"\n==================================\n";
#define errA(A) for(auto i:A) cout<<i<<" "; cout<<"\n";
#define err1(a) cout<<#a<<" "<<a<<"\n";
#define err2(a,b) cout<<#a<<" "<<a<<" "<<#b<<" "<<b<<"\n";
#define err3(a,b,c) cout<<#a<<" "<<a<<" "<<#b<<" "<<b<<" "<<#c<<" "<<c<<"\n";
#define err4(a,b,c,d) cout<<#a<<" "<<a<<" "<<#b<<" "<<b<<" "<<#c<<" "<<c<<" "<<#d<<" "<<d<<"\n";
const int logN = 20;
const int M = 1000000007;
const int INF = 1e12;
#define PI 3.14159265;
const int N = 200005;
 
 
הההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההה
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Compilation message (stderr)

tracks.cpp: In function 'void setIO(std::string)':
tracks.cpp:39:10: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   39 |   freopen((d_name+".in").c_str(), "r", stdin);
      |   ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
tracks.cpp:40:10: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   40 |   freopen((d_name+".out").c_str(), "w", stdout);
      |   ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

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