Submission #338714

#	Time	Username	Problem	Language	Result	Execution time	Memory
338714		NicolaAbusaad2014	Cave (IOI13_cave)	C++14	Compilation error	0 ms	0 KiB

cave

/**
 * Prof.Nicola
**/
#include "cave.h"
#include <bits/stdc++.h>

using namespace std;
template<class T>void re(T&x){cin>>x;}
template<class T1,class T2> void re(pair<T1,T2>&x){re(x.first);re(x.second);}
template<class T>void re(vector<T>&x){for(long i=0;i<x.size();i++){re(x[i]);}}
template<class T>void re(deque<T>&x){for(long i=0;i<x.size();i++){re(x[i]);}}
template<class T1,class T2> pair<T1,T2> mp(T1&x,T2&z){return make_pair(x,z);}
long long n,turn[5001]={};
set<long>s;
set<long>::iterator t;
void con(long l,long r,long&arr[])
{
    t=s.begin();
    for(long i=0;i<s.size();i++){
        arr[*t]=turn[*t];
        t++;
    }
    for(long i=0;i<n&&r>=0;i++){
        if(!s.count(i)){
            if(l){
                l--;
                continue;
            }
            arr[i]=(arr[i]^1);
            r--;
        }
    }
}
long long bin(long long l,long long r,long long x,long&arr[])
{
    long long mid;
    while(l<r){
        mid=(l+r)/2;
        con(l,mid,arr);
        if(tryCombination(arr)==x){
            l=mid+1;
        }
        else{
            con(l,mid,arr);
            r=mid;
        }
    }
    return l;
}
void exploreCave(int N) {
    n=N;
    long sw[n]={},arr[n]={},ans[n]={};
    long x;
    for(long i=0;i<N;i++){
        if(tryCombination(arr)!=i){
            con(0,N-i,arr);
        }
        x=bin(0,N-i,i,arr);
        ans[x]=i;
        sw[i]=(arr[i]^1);
        turn[i]=sw[i];
        s.insert(x);
    }
    answer(sw,ans);
}

Compilation message (stderr)

cave.cpp:16:29: error: declaration of 'arr' as array of references
   16 | void con(long l,long r,long&arr[])
      |                             ^~~
cave.cpp: In function 'void con(...)':
cave.cpp:19:19: warning: comparison of integer expressions of different signedness: 'long int' and 'std::set<long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   19 |     for(long i=0;i<s.size();i++){
      |                  ~^~~~~~~~~
cave.cpp:20:9: error: 'arr' was not declared in this scope
   20 |         arr[*t]=turn[*t];
      |         ^~~
cave.cpp:23:23: error: 'r' was not declared in this scope
   23 |     for(long i=0;i<n&&r>=0;i++){
      |                       ^
cave.cpp:25:16: error: 'l' was not declared in this scope
   25 |             if(l){
      |                ^
cave.cpp:29:13: error: 'arr' was not declared in this scope
   29 |             arr[i]=(arr[i]^1);
      |             ^~~
cave.cpp: At global scope:
cave.cpp:34:56: error: declaration of 'arr' as array of references
   34 | long long bin(long long l,long long r,long long x,long&arr[])
      |                                                        ^~~
cave.cpp: In function 'long long int bin(...)':
cave.cpp:37:11: error: 'l' was not declared in this scope
   37 |     while(l<r){
      |           ^
cave.cpp:37:13: error: 'r' was not declared in this scope
   37 |     while(l<r){
      |             ^
cave.cpp:39:19: error: 'arr' was not declared in this scope
   39 |         con(l,mid,arr);
      |                   ^~~
cave.cpp:40:33: error: 'x' was not declared in this scope
   40 |         if(tryCombination(arr)==x){
      |                                 ^
cave.cpp:48:12: error: 'l' was not declared in this scope
   48 |     return l;
      |            ^
cave.cpp: In function 'void exploreCave(int)':
cave.cpp:55:27: error: cannot convert 'long int*' to 'int*'
   55 |         if(tryCombination(arr)!=i){
      |                           ^~~
      |                           |
      |                           long int*
In file included from cave.cpp:4:
cave.h:8:24: note:   initializing argument 1 of 'int tryCombination(int*)'
    8 | int tryCombination(int S[]);
      |                    ~~~~^~~
cave.cpp:64:12: error: cannot convert 'long int*' to 'int*'
   64 |     answer(sw,ans);
      |            ^~
      |            |
      |            long int*
In file included from cave.cpp:4:
cave.h:9:17: note:   initializing argument 1 of 'void answer(int*, int*)'
    9 | void answer(int S[], int D[]);
      |             ~~~~^~~