Submission #551542

#	Time	Username	Problem	Language	Result	Execution time	Memory
551542		krit3379	Rail (IOI14_rail)	C++17	Compilation error	0 ms	0 KiB

rail

#include<bits/stdc++.h>
using namespace std;
#define N 5005

struct A{
    int x,id;
    bool operator<(const A& o)const{
        return x<o.x;
    }
};

A l,r;
vector<A> v;
map<int,int> mp;

void findLocation(int n, int first, int location[], int stype[]){
    int i,pos;
    location[0]=first;
    stype[0]=1;
    if(n==1)return ;
    l={first,0};
    mp[l.x]=1;
    for(i=1;i<n;i++)v.push_back({getDistance(0,i),i});
    sort(v.begin(),v.end());
    r={l.x+v[0].x,v[0].id};
    location[v[0].id]=r.x;
    stype[v[0].id]=2;
    mp[r.x]=2;
    for(i=1;i<v.size();i++){
        int xl,xr;
        xl=getDistance(v[i].id,l.id);
        xr=getDistance(v[i].id,r.id);
        pos=l.x+xl;
        int val=(pos+r.x-xr)/2;
        if((mp.count(val)&&mp[val]==1)||(!mp.count(val)&&val>first)){
            A temp={pos,v[i].id};
            location[v[i].id]=pos;
            stype[v[i].id]=2;
            r=max(r,temp);
            mp[pos]=2;
            continue;
        }
        pos=r.x-xr;
        A temp={pos,v[i].id};
        location[v[i].id]=pos;
        stype[v[i].id]=1;
        l=min(l,temp);
        mp[pos]=1;
    }
    return ;
}

Compilation message (stderr)

rail.cpp: In function 'void findLocation(int, int, int*, int*)':
rail.cpp:23:34: error: 'getDistance' was not declared in this scope
   23 |     for(i=1;i<n;i++)v.push_back({getDistance(0,i),i});
      |                                  ^~~~~~~~~~~
rail.cpp:23:53: error: no matching function for call to 'std::vector<A>::push_back(<brace-enclosed initializer list>)'
   23 |     for(i=1;i<n;i++)v.push_back({getDistance(0,i),i});
      |                                                     ^
In file included from /usr/include/c++/10/vector:67,
                 from /usr/include/c++/10/functional:62,
                 from /usr/include/c++/10/pstl/glue_algorithm_defs.h:13,
                 from /usr/include/c++/10/algorithm:74,
                 from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:65,
                 from rail.cpp:1:
/usr/include/c++/10/bits/stl_vector.h:1187:7: note: candidate: 'void std::vector<_Tp, _Alloc>::push_back(const value_type&) [with _Tp = A; _Alloc = std::allocator<A>; std::vector<_Tp, _Alloc>::value_type = A]'
 1187 |       push_back(const value_type& __x)
      |       ^~~~~~~~~
/usr/include/c++/10/bits/stl_vector.h:1187:35: note:   no known conversion for argument 1 from '<brace-enclosed initializer list>' to 'const value_type&' {aka 'const A&'}
 1187 |       push_back(const value_type& __x)
      |                 ~~~~~~~~~~~~~~~~~~^~~
/usr/include/c++/10/bits/stl_vector.h:1203:7: note: candidate: 'void std::vector<_Tp, _Alloc>::push_back(std::vector<_Tp, _Alloc>::value_type&&) [with _Tp = A; _Alloc = std::allocator<A>; std::vector<_Tp, _Alloc>::value_type = A]'
 1203 |       push_back(value_type&& __x)
      |       ^~~~~~~~~
/usr/include/c++/10/bits/stl_vector.h:1203:30: note:   no known conversion for argument 1 from '<brace-enclosed initializer list>' to 'std::vector<A>::value_type&&' {aka 'A&&'}
 1203 |       push_back(value_type&& __x)
      |                 ~~~~~~~~~~~~~^~~
rail.cpp:29:14: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<A>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   29 |     for(i=1;i<v.size();i++){
      |             ~^~~~~~~~~
rail.cpp:31:12: error: 'getDistance' was not declared in this scope
   31 |         xl=getDistance(v[i].id,l.id);
      |            ^~~~~~~~~~~