Submission #211097

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
211097	2020-03-19 08:23:33	DodgeBallMan	Library (JOI18_library)	C++14	Compilation error	0 ms	0 KiB

library

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#include <bits/stdc++.h>
#include "library.h"
using namespace std;
int ask( vector<int> v ) {
    if( !(int)v.size() ) return 0;
    vector<int> vec(n);
    for( int &x : vec ) x = 0;
    for( int x : v ) vec[x-1] = 1;
    return Query( vec );
}
 
void eras( vector<int> &v, int i ) {
    vector<int>::iterator it;
    for( it = v.begin() ; it != v.end() ; it++ ) if( *it == i ) break;
    v.erase( it );
}
 
void Solve( int n ) 
{
    if( n == 1 ) Answer({1});
    vector<int> ans(n);
    vector<int> left;
    for( int i = 1 ; i <= n ; i++ ) left.emplace_back( i );
    for( int i = 1 ; i <= n ; i++ ) {
        vector<int> v;
        for( int j = 1 ; j <= n ; j++ ) if( i != j ) v.emplace_back( j );
        if( ask( v ) == 1 ) {
            ans[0] = i;
 
 
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Compilation message (stderr)

library.cpp: In function 'int ask(std::vector<int>)':
library.cpp:8:21: error: 'n' was not declared in this scope
     vector<int> vec(n);
                     ^
library.cpp: In function 'void Solve(int)':
library.cpp:38:23: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
             int m = l + r >> 1;
                     ~~^~~