Submission #320948

#	Time	Username	Problem	Language	Result	Execution time	Memory
320948		SnowFlake7	Coins (IOI17_coins)	C++14	Compilation error	0 ms	0 KiB

coins

#include <bits/stdc++.h>
#include "coins.h"

vector<int> coin_flips(vector<int> b, int c) {
    vector<int> flips;
    long long x = find_coin(b);
    flips.push_back(x ^ c);
    return flips;
}
int find_coin(vector<int> b) {
    long long x = 0;
    for (int i = 0;i < 64;i++) {
        if (b[i] == 1)
            x ^= i;
    }
    return x;
}

Compilation message (stderr)

coins.cpp:4:1: error: 'vector' does not name a type
    4 | vector<int> coin_flips(vector<int> b, int c) {
      | ^~~~~~
coins.cpp:10:15: error: 'int find_coin' redeclared as different kind of entity
   10 | int find_coin(vector<int> b) {
      |               ^~~~~~
In file included from coins.cpp:2:
coins.h:4:5: note: previous declaration 'int find_coin(std::vector<int>)'
    4 | int find_coin(std::vector<int> b);
      |     ^~~~~~~~~
coins.cpp:10:15: error: 'vector' was not declared in this scope; did you mean 'std::vector'?
   10 | int find_coin(vector<int> b) {
      |               ^~~~~~
      |               std::vector
In file included from /usr/include/c++/9/vector:67,
                 from /usr/include/c++/9/queue:61,
                 from /usr/include/x86_64-linux-gnu/c++/9/bits/stdc++.h:86,
                 from coins.cpp:1:
/usr/include/c++/9/bits/stl_vector.h:386:11: note: 'std::vector' declared here
  386 |     class vector : protected _Vector_base<_Tp, _Alloc>
      |           ^~~~~~
coins.cpp:10:22: error: expected primary-expression before 'int'
   10 | int find_coin(vector<int> b) {
      |                      ^~~