Submission #477918

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
477918	2021-10-04 15:30:57	Shogun3103	Tracks in the Snow (BOI13_tracks)	C++17	100 / 100	795 ms	131140 KiB

tracks

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#include <bits/stdc++.h>
 
using namespace std;
#define ll long long
#define ld long double
#define FOR(i,a,b) for(__typeof(b) i=a; i<=b; i++)
#define FOD(i,a,b) for(__typeof(b) i=b; i>=a; i--)
#define EACH(u, v) for(auto& u : v)
#define sz(x) ((int)(x).size())
#define all(x) (x).begin(), (x).end()
#define pb push_back
#define pf push_front
#define ii pair<int,int>
#define iii pair<int,ii>
#define f first
#define s second
#define ed "\n"
#define sp " "
#define vi vector<int>
#define vii vector<ii>
#define vl vector<ll>
#define NO cout << "NO" << ed;
#define YES cout << "YES" << ed;
#define no cout << "no" << ed;
#define yes cout << "yes" << ed;
void setIO(string fileName = ""){
    if(fileName.length()){
        freopen((fileName+".in").c_str(), "r", stdin);
 
 
הההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההה
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Compilation message (stderr)

tracks.cpp: In function 'void setIO(std::string)':
tracks.cpp:30:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   30 |         freopen((fileName+".in").c_str(), "r", stdin);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
tracks.cpp:31:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   31 |         freopen((fileName+".out").c_str(), "w", stdout);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

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