Submission #1291466

#	Time	Username	Problem	Language	Result	Execution time	Memory
1291466		ducksaysquack	Coins (IOI17_coins)	C++20	Compilation error	0 ms	0 KiB

coins

#include "coins.h"
#include <bits/stdc++.h>
using namespace std;
vector<int> coin_flips(vector<int> v, int x) {
	for(int i=0;i<64;i++) if(v[i]) x ^= v[i];
	return vector<int>(1,x);
}
int find_coint(vector<int> v) {
	int x = 0; for(int i=0;i<64;i++) if(v[i]) x ^= v[i];
	return x;
}

Compilation message (stderr)

grader.cpp: In function 'void shuffle(std::vector<int>&)':
grader.cpp:88:23: warning: 'void std::random_shuffle(_RAIter, _RAIter) [with _RAIter = __gnu_cxx::__normal_iterator<int*, vector<int> >]' is deprecated: use 'std::shuffle' instead [-Wdeprecated-declarations]
   88 |         random_shuffle(v.begin(), v.end());
      |         ~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~
In file included from /usr/include/c++/13/algorithm:61,
                 from grader.cpp:5:
/usr/include/c++/13/bits/stl_algo.h:4581:5: note: declared here
 4581 |     random_shuffle(_RandomAccessIterator __first, _RandomAccessIterator __last)
      |     ^~~~~~~~~~~~~~
/usr/bin/ld: /tmp/ccqolH0A.o: in function `main':
grader.cpp:(.text.startup+0xa36): undefined reference to `find_coin(std::vector<int, std::allocator<int> >)'
collect2: error: ld returned 1 exit status