Submission #707635

#	Time	Username	Problem	Language	Result	Execution time	Memory
707635		Nhoksocqt1	Parrots (IOI11_parrots)	C++17	Compilation error	0 ms	0 KiB

encoder

#include<bits/stdc++.h>
using namespace std;

#define inf 0x3f3f3f3f
#pragma GCC target ("avx2")
#pragma GCC optimization ("O3")
#pragma GCC optimization ("unroll-loops")
#define sz(x) int((x).size())
#define fi first
#define se second
typedef long long ll;
typedef pair<int, int> ii;

template<class X, class Y>
	inline bool maximize(X &x, const Y &y) {return (x < y ? x = y, 1 : 0);}
template<class X, class Y>
	inline bool minimize(X &x, const Y &y) {return (x > y ? x = y, 1 : 0);}

mt19937 rng(chrono::steady_clock::now().time_since_epoch().count());
int Random(int l, int r) {
    return uniform_int_distribution<int>(l, r)(rng);
}

//#define Nhoksocqt1

#ifdef Nhoksocqt1

vector<int> encoder, token;

void send(int a) {
    assert(a >= 0 && a <= 65535);
    encoder.push_back(a);
}

void output(int b) {
    token.push_back(b);
}

#endif // Nhoksocqt1

void encode(int N, int M[]) {
    for (int i = 0; i < N; ++i)
        send((M[i] << 4) ^ i);
}

void decode(int N, int L, int X[]) {
    for (int i = 0; i < N; ++i) {
        for (int j = 0; j < L; ++j) {
            if((X[i] & ((1 << 4) - 1)) == j) {
                output(X[i] >> 4);
                break;
            }
        }
    }
}

#ifdef Nhoksocqt1
int main() {
    ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0);

    freopen("PARROTS.inp", "r", stdin);
    freopen("PARROTS.out", "w", stdout);

    encoder.clear(), token.clear();

    int m[70], L[500], n;

    cin >> n;
    for (int i = 0; i < n; ++i) {
        cin >> m[i];
        m[i] = Random(0, 255); cout << m[i] << " \n"[i + 1 == n];
    }

    encode(n, m);
    cout << "NUMBER BIRD: " << sz(encoder) << '\n';

    for (int it = 0; it < sz(encoder); ++it)
        L[it] = encoder[it];

    decode(n, sz(encoder), L);

    cout << "TOKEN GET: " << sz(token) << '\n';

    assert(sz(token) == n);
    for (int it = 0; it < n; ++it)
        assert(token[it] == m[it]);

    return 0;
}
#endif // Nhoksocqt1

decoder

Compilation message (stderr)

encoder.cpp:6: warning: ignoring '#pragma GCC optimization' [-Wunknown-pragmas]
    6 | #pragma GCC optimization ("O3")
      | 
encoder.cpp:7: warning: ignoring '#pragma GCC optimization' [-Wunknown-pragmas]
    7 | #pragma GCC optimization ("unroll-loops")
      | 
encoder.cpp: In function 'void encode(int, int*)':
encoder.cpp:43:9: error: 'send' was not declared in this scope
   43 |         send((M[i] << 4) ^ i);
      |         ^~~~
encoder.cpp: In function 'void decode(int, int, int*)':
encoder.cpp:50:17: error: 'output' was not declared in this scope
   50 |                 output(X[i] >> 4);
      |                 ^~~~~~

/usr/bin/ld: /tmp/cc2e2Mrc.o: in function `main':
grader_decoder.cpp:(.text.startup+0x1ef): undefined reference to `decode(int, int, int*)'
collect2: error: ld returned 1 exit status