Submission #870626

#	Time	Username	Problem	Language	Result	Execution time	Memory
870626		Irate	Cave (IOI13_cave)	C++14	Compilation error	0 ms	0 KiB

cave

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

    FILE *f = fopen("cave.in", "r");
	if (!f)
		fail("Failed to open input file.");

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

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

    num_calls = 0;
    return N;
}

void exploreCave(int n){
	int v[n];
	int res[n];
	for(int i = 0;i < n;++i){
		v[i] = 0;
		res[i] = -1;
	}	
	for(int i = 0;i < n;++i){
		if(tryCombination(v) != i){
			for(int j = 0;j < n;++j){
				if(res[j] == -1)v[j] ^= 1;
			}
		}
		int l = 0, r = n - 1, ans = -1;
		while(l <= r){
			int mid = (l + r) >> 1;
			for(int j = l;j <= mid;++j){
				if(res[j] == -1)v[j] ^= 1;
			}
			int check = tryCombination(v);
			for(int j = l;j <= mid;++j){
				if(res[j] == -1)v[j] ^= 1;
			}
			if(check >= i || check == -1){
				r = mid - 1;
				ans = mid;
			}
			else{
				l = mid + 1;
			}
		}
		res[ans] = i;
		v[ans] ^= 1;
	}
	answer(v, res);
}

// int main()
// {
// 	int n;
// 	cin >> n;
// 	for(int i = 0;i < n;++i){
// 		cin >> realS[i];
// 	}
// 	for(int i = 0;i < n;++i){
// 		cin >> realD[i];
// 	}
// 	exploreCave(n);
// }

Compilation message (stderr)

cave.cpp: In function 'int init()':
cave.cpp:72:12: warning: variable 'res' set but not used [-Wunused-but-set-variable]
   72 |     int i, res;
      |            ^~~
/usr/bin/ld: /tmp/cc2mAMeV.o: in function `answer':
cave.cpp:(.text+0x0): multiple definition of `answer'; /tmp/cc26aEaX.o:grader.c:(.text+0x0): first defined here
/usr/bin/ld: /tmp/cc2mAMeV.o: in function `tryCombination':
cave.cpp:(.text+0x150): multiple definition of `tryCombination'; /tmp/cc26aEaX.o:grader.c:(.text+0x80): first defined here
/usr/bin/ld: /tmp/cc2mAMeV.o: in function `init()':
cave.cpp:(.text+0x1e0): multiple definition of `init()'; /tmp/cc26aEaX.o:grader.c:(.text+0x110): first defined here
collect2: error: ld returned 1 exit status