Submission #600864

#	Time	Username	Problem	Language	Result	Execution time	Memory
600864		alextodoran	Stranded Far From Home (BOI22_island)	C++17	Compilation error	0 ms	0 KiB

island

/**
 ____ ____ ____ ____ ____
||a |||t |||o |||d |||o ||
||__|||__|||__|||__|||__||
|/__\|/__\|/__\|/__\|/__\|

**/

#include <bits/stdc++.h>

using namespace std;

typedef long long ll;

int send (int s);
void encode (int N, int X) {
    while (N > 0) {
        if (send(1) == 0) {
            send(X % 2);
            N /= 2;
            X /= 2;
        }
    }
}

int receive ();
pair <int, int> decode (int N) {
    int X = 0;
    int bit = 0;
    while (N > 0) {
        if (receive() == 0) {
            X += (receive() << bit);
            N /= 2;
            bit++;
        }
    }
    return make_pair(X, X);
}

Compilation message (stderr)

/usr/bin/ld: /usr/lib/gcc/x86_64-linux-gnu/10/../../../x86_64-linux-gnu/crt1.o: in function `_start':
(.text+0x24): undefined reference to `main'
/usr/bin/ld: /tmp/ccVNapDA.o: in function `encode(int, int)':
island.cpp:(.text+0x16): undefined reference to `send(int)'
/usr/bin/ld: island.cpp:(.text+0x41): undefined reference to `send(int)'
/usr/bin/ld: /tmp/ccVNapDA.o: in function `decode(int)':
island.cpp:(.text+0x69): undefined reference to `receive()'
/usr/bin/ld: island.cpp:(.text+0x91): undefined reference to `receive()'
collect2: error: ld returned 1 exit status