Submission #637472

#	Time	Username	Problem	Language	Result	Execution time	Memory
637472		as111	Coins (IOI17_coins)	C++14	Compilation error	0 ms	0 KiB

coins

#include <coins.h>
#include <vector>

using namespace std;
vector<int> coin_flips(int b[], int c) {
	int A = 0;
	for (int i = 0; i < 64; i++) {
		A = A ^ (i * b[i]);
	}
	vector<int> flips;
	flips.push_back(c ^ A);
}
int find_coin(int b[]) {
	int X = 0;
	for (int i = 0; i < 64; i++) {
		X = X ^ (i * b[i]);
	}
	return X;
}

Compilation message (stderr)

coins.cpp: In function 'std::vector<int> coin_flips(int*, int)':
coins.cpp:12:1: warning: no return statement in function returning non-void [-Wreturn-type]
   12 | }
      | ^
/usr/bin/ld: /tmp/cckMgWPE.o: in function `main':
grader.cpp:(.text.startup+0x3a5): undefined reference to `coin_flips(std::vector<int, std::allocator<int> >, int)'
/usr/bin/ld: grader.cpp:(.text.startup+0x997): undefined reference to `find_coin(std::vector<int, std::allocator<int> >)'
collect2: error: ld returned 1 exit status