Submission #370165

#	Time	Username	Problem	Language	Result	Execution time	Memory
370165		leinad2	Unscrambling a Messy Bug (IOI16_messy)	C++17	Compilation error	0 ms	0 KiB

messy

#include "messy.h"
#include<bits/stdc++.h>
using namespace std;
vector<int>ans;
void add(int l, int r)
{
    if(l==r)return;
    int m=l+r>>1;
    for(int j=l;j<=m;j++)
    {
        string s;
        for(int i=0;i++<n;)
        {
            if(l<=i&&i<=r)
            {
                if(i==j)s+='1';
                else s+='0';
            }
            else s+='1';
        }
        add_element(s);
    }
    add(l, m);
    add(m+1, r);
}
void chk(int l, int r, vector<int>v)
{
    if(l==r)
    {
        ans[v[0]-1]=l-1;
        return;
    }
    int m=l+r>>1;
    vector<int>L, R;
    int A[130]={};
    for(int i=0;i<v.size();i++)
    {
        A[v[i]]=1;
    }
    for(int i=0;i<v.size();i++)
    {
        string s;
        for(int j=0;j++<n;)
        {
            if(A[j])
            {
                if(j==v[i])s+='1';
                else s+='0';
            }
            else s+='1';
        }
        if(check_element(s))L.push_back(v[i]);
        else R.push_back(v[i]);
    }
    chk(l, m, L);
    chk(m+1, r, R);
}
vector<int>restore_permutation(int n, int w, int r)
{
    ans.resize(n);
    vector<int>v;for(int i=0;i++<n;)v.push_back(i);
    add(1, n);
    compile_set();
    chk(1, n, v);
    return ans;
}

Compilation message (stderr)

messy.cpp: In function 'void add(int, int)':
messy.cpp:8:12: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
    8 |     int m=l+r>>1;
      |           ~^~
messy.cpp:12:25: error: 'n' was not declared in this scope
   12 |         for(int i=0;i++<n;)
      |                         ^
messy.cpp: In function 'void chk(int, int, std::vector<int>)':
messy.cpp:33:12: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   33 |     int m=l+r>>1;
      |           ~^~
messy.cpp:36:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   36 |     for(int i=0;i<v.size();i++)
      |                 ~^~~~~~~~~
messy.cpp:40:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   40 |     for(int i=0;i<v.size();i++)
      |                 ~^~~~~~~~~
messy.cpp:43:25: error: 'n' was not declared in this scope
   43 |         for(int j=0;j++<n;)
      |                         ^