Submission #31080

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
31080	2017-08-06T16:54:50 Z	WhipppedCream	Cave (IOI13_cave)	C++14	Compilation error	0 ms	0 KB

cave

#include "grader.c"
#include <bits/stdc++.h>
using namespace std;
#define vi vector<int>
#define pb push_back
bool solved[5005];
int sol[5005];
int connect[5005];
int arr[5005];
int tmp[5005];
vi cand;
void exploreCave(int n)
{
    for(int i = 0; i< n; i++) cand.pb(i);
    for(int it = 0; it< n-1; it++)
    {
        //printf("-----iteration %d\n", it);
        for(int i = 0; i< n; i++) if(solved[i]) arr[i] = sol[i];
        for(int i = 0; i< (int) cand.size(); i++) arr[cand[i]] = 0;
        int last = tryCombination(arr);
        if(last == -1) last = 1e9;
        int L = 0, R = cand.size()-1;
        memset(tmp, 0, sizeof tmp);
        while(L< R)
        {
            //printf("L = %d and R = %d\n", L, R);
            int mid = (L+R)/2;
            for(int i = 0; i< n; i++) if(solved[i]) arr[i] = sol[i];
            for(int i = mid+1; i<= R; i++) if(!solved[cand[i]]) arr[cand[i]] = 1-arr[cand[i]];
            int x = tryCombination(arr);
            if(x == -1) x = 1e9;
            if(x< last)
            {
                L = mid+1;
                last = x;
                if(L == R) sol[cand[L]] = 1-arr[cand[L]];
            }
            else if(x> last)
            {
                L = mid+1;
                if(L == R) sol[cand[L]] = arr[cand[L]];
                for(int i = mid+1; i<= R; i++) if(!solved[cand[i]]) arr[cand[i]] = 1-arr[cand[i]];
            }
            else
            {
                int trex = R;
                R = mid;
                if(L == R) sol[cand[L]]= 1-arr[cand[L]];
                for(int i = mid+1; i<= trex; i++) if(!solved[cand[i]]) arr[cand[i]] = 1-arr[cand[i]];
            }
        }
        connect[cand[L]] = last;
        solved[cand[L]] = 1;
        //printf("connect %d to %d\n", cand[L], last);
        //printf("position for %d is %d\n", cand[L], sol[cand[L]]);
        cand.erase(cand.begin()+L);
    }
    int pos = cand[0];
    //printf("pos is %d\n", pos);
    memset(arr, 0, sizeof arr);
    for(int i = 0; i< n; i++) if(solved[i]) arr[i] = sol[i];
    int x = tryCombination(arr);
    int y;
    if(x == -1)
    {
        arr[pos] = 1-arr[pos];
        y = tryCombination(arr);
        sol[pos] = 1-arr[pos];
    }
    else
    {
        y = x;
        sol[pos] = 1-arr[pos];
    }
    connect[pos] = y;
    answer(sol, connect);
}

Compilation message

In file included from grader.c:1:0,
                 from cave.cpp:1:
graderlib.c:8:23: error: expected unqualified-id before 'do'
 #define fail(s, x...) do { \
                       ^
graderlib.c:11:4: error: expected unqualified-id before 'while'
  } while(0)
    ^
/usr/include/c++/7/bits/basic_ios.h: In member function 'std::basic_ios<_CharT, _Traits>::operator bool() const':
graderlib.c:8:23: error: expected unqualified-id before 'do'
 #define fail(s, x...) do { \
                       ^
graderlib.c:8:23: error: expected ';' before 'do'
/usr/include/c++/7/bits/basic_ios.h: In member function 'bool std::basic_ios<_CharT, _Traits>::operator!() const':
graderlib.c:8:23: error: expected unqualified-id before 'do'
 #define fail(s, x...) do { \
                       ^
graderlib.c:8:23: error: expected ';' before 'do'
/usr/include/c++/7/bits/ostream.tcc: In member function 'std::basic_ostream<_CharT, _Traits>::pos_type std::basic_ostream<_CharT, _Traits>::tellp()':
graderlib.c:8:23: error: expected unqualified-id before 'do'
 #define fail(s, x...) do { \
                       ^
graderlib.c:8:23: error: expected ')' before 'do'
/usr/include/c++/7/bits/ostream.tcc: In member function 'std::basic_ostream<_CharT, _Traits>& std::basic_ostream<_CharT, _Traits>::seekp(std::basic_ostream<_CharT, _Traits>::pos_type)':
graderlib.c:8:23: error: expected unqualified-id before 'do'
 #define fail(s, x...) do { \
                       ^
graderlib.c:8:23: error: expected ')' before 'do'
/usr/include/c++/7/bits/ostream.tcc: In member function 'std::basic_ostream<_CharT, _Traits>& std::basic_ostream<_CharT, _Traits>::seekp(std::basic_ostream<_CharT, _Traits>::off_type, std::ios_base::seekdir)':
graderlib.c:8:23: error: expected unqualified-id before 'do'
 #define fail(s, x...) do { \
                       ^
graderlib.c:8:23: error: expected ')' before 'do'
/usr/include/c++/7/bits/istream.tcc: In member function 'std::basic_istream<_CharT, _Traits>::pos_type std::basic_istream<_CharT, _Traits>::tellg()':
graderlib.c:8:23: error: expected unqualified-id before 'do'
 #define fail(s, x...) do { \
                       ^
graderlib.c:8:23: error: expected ')' before 'do'
/usr/include/c++/7/bits/istream.tcc: In member function 'std::basic_istream<_CharT, _Traits>& std::basic_istream<_CharT, _Traits>::seekg(std::basic_istream<_CharT, _Traits>::pos_type)':
graderlib.c:8:23: error: expected unqualified-id before 'do'
 #define fail(s, x...) do { \
                       ^
graderlib.c:8:23: error: expected ')' before 'do'
/usr/include/c++/7/bits/istream.tcc: In member function 'std::basic_istream<_CharT, _Traits>& std::basic_istream<_CharT, _Traits>::seekg(std::basic_istream<_CharT, _Traits>::off_type, std::ios_base::seekdir)':
graderlib.c:8:23: error: expected unqualified-id before 'do'
 #define fail(s, x...) do { \
                       ^
graderlib.c:8:23: error: expected ')' before 'do'
/usr/include/c++/7/bits/regex.tcc: In member function 'int std::__cxx11::regex_traits< <template-parameter-1-1> >::value(_Ch_type, int) const':
graderlib.c:8:23: error: expected unqualified-id before 'do'
 #define fail(s, x...) do { \
                       ^
graderlib.c:8:23: error: expected ';' before 'do'
In file included from /usr/include/c++/7/bits/regex.h:2802:0,
                 from /usr/include/c++/7/regex:62,
                 from /usr/include/x86_64-linux-gnu/c++/7/bits/stdc++.h:110,
                 from cave.cpp:2:
/usr/include/c++/7/bits/regex.tcc:354:26: error: expected ';' before '?' token
       return __is.fail() ? -1 : __v;
                          ^
/usr/include/c++/7/bits/regex.tcc:354:26: error: expected primary-expression before '?' token