Submission #1352851

#	Time	Username	Problem	Language	Result	Execution time	Memory
1352851		adam17	Flight to the Ford (BOI22_communication)	C++20	Compilation error	0 ms	0 KiB

communication

int send(int s);
std::pair<int,int> receive();

void encode(int N, int X) {
    send((X == 3) ? 1 : 0);
    send((X == 2) ? 1 : 0);
    send((X == 2) ? 1 : 0);
    send((X == 3) ? 1 : 0);
}

std::pair<int,int> decode(int N) {
    int a = receive(), b = receive(), c = receive(), d = receive();
    if ((a + b + c + d == 0) || (a > b) || (c < d)) {
        return std::pair<int,int>{1, 3};
    }
    if ((a < b) || (c > d)) {
        return std::pair<int,int>{1, 2};
    }
    return std::pair<int,int>{2, 3};
}

Compilation message (stderr)

communication.cpp:2:6: error: 'pair' in namespace 'std' does not name a template type
    2 | std::pair<int,int> receive();
      |      ^~~~
communication.cpp:1:1: note: 'std::pair' is defined in header '<utility>'; did you forget to '#include <utility>'?
  +++ |+#include <utility>
    1 | int send(int s);
communication.cpp:11:6: error: 'pair' in namespace 'std' does not name a template type
   11 | std::pair<int,int> decode(int N) {
      |      ^~~~
communication.cpp:11:1: note: 'std::pair' is defined in header '<utility>'; did you forget to '#include <utility>'?
   11 | std::pair<int,int> decode(int N) {
      | ^~~