Submission #770814

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
770814	2023-07-02 03:07:32	nasam	Race (IOI11_race)	C++17	Compilation error	0 ms	0 KiB

race

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#include <bits/stdc++.h>
#define ll long long
#define FOR(i,a,b) for (int i = (a), _b = (b); i <= _b; i++)
#define FOD(i,b,a) for (int i = (b), _a = (a); i >= _a; i--)
#define FORE(i, v) for (__typeof((v).begin()) i = (v).begin(); i != (v).end(); i++)
#define ALL(v) (v).begin(), (v).end()
#define BIT(x, i) (((x) >> (i)) & 1)
#define MASK(i) (1LL << (i))
#define CNTBIT(x) __builtin_popcount(x)
#define fi first
#define se second
#define pb push_back
#define eb emplace_back
#define left ___left
#define right ___right
#define pii pair<int, int>
#define DEBUG(n, a) FOR (i, 1, n) cout << a[i] << ' '; cout << endl;
#define lob lower_bound // >=
#define upb upper_bound // >
#define endl "\n"
#define NAME "main"
using namespace std;
template<class X, class Y> bool maximize(X &x, Y y){ if (x < y){ x = y; return true; } return false; }
template<class X, class Y> bool minimize(X &x, Y y){ if (x > y){ x = y; return true; } return false; }
#define  gogobruhbruh  ios_base::sync_with_stdio(false); cin.tie(nullptr); cout.tie(nullptr);
#define  file(name)  if (fopen (name".inp", "r")) { freopen (name".inp", "r", stdin); freopen (name".out", "w", stdout); }
 
 
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Compilation message (stderr)

race.cpp: In function 'void read()':
race.cpp:106:10: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
  106 |     scanf("%d %d", &num, &target);
      |     ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~
race.cpp:109:14: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
  109 |         scanf("%d %d %d", &u, &v, &cost);
      |         ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~
race.cpp: In function 'int main()':
race.cpp:29:61: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   29 | #define  file(name)  if (fopen (name".inp", "r")) { freopen (name".inp", "r", stdin); freopen (name".out", "w", stdout); }
      |                                                     ~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~
race.cpp:116:5: note: in expansion of macro 'file'
  116 |     file("main");
      |     ^~~~
race.cpp:29:95: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   29 | #define  file(name)  if (fopen (name".inp", "r")) { freopen (name".inp", "r", stdin); freopen (name".out", "w", stdout); }
      |                                                                                       ~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~
race.cpp:116:5: note: in expansion of macro 'file'
  116 |     file("main");
      |     ^~~~
/usr/bin/ld: /tmp/ccC8JIYL.o: in function `main':
race.cpp:(.text.startup+0x0): multiple definition of `main'; /tmp/ccs4NI9K.o:grader.cpp:(.text.startup+0x0): first defined here
/usr/bin/ld: /tmp/ccs4NI9K.o: in function `main':
grader.cpp:(.text.startup+0x28): undefined reference to `best_path(int, int, int (*) [2], int*)'
collect2: error: ld returned 1 exit status