Submission #1315236

#TimeUsernameProblemLanguageResultExecution timeMemory
1315236otariusCave (IOI13_cave)C++20
Compilation error
0 ms0 KiB
// #include "cave.h"
#include <bits/stdc++.h>
#include <bits/extc++.h>
using namespace __gnu_pbds;
using namespace std;

// #pragma GCC optimize("Ofast")
// #pragma GCC optimize ("unroll-loops")
// #pragma GCC target("sse,sse2,sse3,ssse3,sse4,popcnt,abm,mmx,avx,tune=native")

#define ff first
#define sc second
#define pb push_back
#define ll long long
#define pll pair<ll, ll>
#define pii pair<int, int>
#define ull unsigned long long
#define all(x) (x).begin(),(x).end()
#define rall(x) (x).rbegin(),(x).rend()

mt19937 rng(chrono::steady_clock::now().time_since_epoch().count());
mt19937_64 rngl(chrono::steady_clock::now().time_since_epoch().count());

// #define int long long
// #define int unsigned long long

// #define ordered_set(T) tree<T, null_type, less<T>, rb_tree_tag, tree_order_statistics_node_update>
// #define ordered_multiset(T) tree<T, null_type, less_equal<T>, rb_tree_tag, tree_order_statistics_node_update>

// const ll mod = 1e9 + 7;
// const ll mod = 998244353;

const ll inf = 1e9;
const ll biginf = 1e18;
// const int maxN;

#define MAX_N 5000
#define MAX_CALLS 70000

#define fail(s, x...) do { \
		fprintf(stderr, s "\n", ## x); \
		exit(1); \
	} while(0)

/* Symbol obfuscation */
#define N koala
#define realS kangaroo
#define realD possum
#define inv platypus
#define num_calls echidna

static int N;
static int realS[MAX_N];
static int realD[MAX_N];
static int inv[MAX_N];
static int num_calls;

void answer(int S[], int D[]) {
    int i;
    int correct = 1;
    for (i = 0; i < N; ++i)
        if (S[i] != realS[i] || D[i] != realD[i]) {
            correct = 0;
            break;
        }

    if (correct)
        printf("CORRECT\n");
    else
        printf("INCORRECT\n");

    for (i = 0; i < N; ++i) {
        if (i > 0)
            printf(" ");
        printf("%d", S[i]);
    }
    printf("\n");

    for (i = 0; i < N; ++i) {
        if (i > 0)
            printf(" ");
        printf("%d", D[i]);
    }
    printf("\n");

    exit(0);
}

int tryCombination(int S[]) {
    int i;

    if (num_calls >= MAX_CALLS) {
        printf("INCORRECT\nToo many calls to tryCombination().\n");
        exit(0);
    }
    ++num_calls;

    for (i = 0; i < N; ++i)
        if (S[inv[i]] != realS[inv[i]])
            return i;
    return -1;
}

int init() {
    int i, res;
    
    cin >> N;

// 	res = fscanf(f, "%d", &N);

    for (i = 0; i < N; ++i) {
        cin >> realS[i];
        // res = fscanf(f, "%d", &realS[i]);
    }
    for (i = 0; i < N; ++i) {
        cin >> realD[i];
        // res = fscanf(f, "%d", &realD[i]);
        inv[realD[i]] = i;
    }

    num_calls = 0;
    return N;
}


void exploreCave(int n) {
    int s[n], d[n], q[n]{};
    for (int i = 0; i < n; i++) {
        for (int j = 0; j < i; j++) q[j] = s[j];
        for (int j = i; j < n; j++) q[j] = 0;
        
        int now = tryCombination(q);
        if (now > i || now == -1) s[i] = 0;
        else s[i] = 1;
    }
    
    bool used[n]{};
    for (int i = 0; i < n; i++) {
        
        vector<int> cur;
        for (int j = 0; j < n; j++) {
            if (used[j]) q[j] = s[j];
            else cur.pb(j);
        }
        
        int l = 0, r = (int)cur.size() - 1, m, ans;
        while (l <= r) {
            m = (l + r) / 2;
            for (int j = 0; j <= m; j++) q[cur[j]] = s[cur[j]];
            for (int j = m + 1; j < cur.size(); j++) q[cur[j]] = !s[cur[j]];
            
            int now = tryCombination(q);
            if (now > i || now == -1) {
                ans = m; r = m - 1;
            } else l = m + 1;
        }
        
        d[cur[ans]] = i; used[cur[ans]] = 1;
    }
    
    answer(s, d);
}

int main() {
    int N;
	N = init();
	exploreCave(N);
    printf("INCORRECT\nYour solution did not call answer().\n");
	return 0;
}

Compilation message (stderr)

/usr/bin/ld: /tmp/ccWbIkSj.o: in function `init()':
grader.c:(.text+0x110): multiple definition of `init()'; /tmp/cchuLLxZ.o:cave.cpp:(.text+0x1c0): first defined here
/usr/bin/ld: /tmp/ccWbIkSj.o: in function `main':
grader.c:(.text.startup+0x0): multiple definition of `main'; /tmp/cchuLLxZ.o:cave.cpp:(.text.startup+0x0): first defined here
/usr/bin/ld: /tmp/ccWbIkSj.o: in function `main':
grader.c:(.text.startup+0x10): undefined reference to `exploreCave'
collect2: error: ld returned 1 exit status