Submission #293047

#	Time	Username	Problem	Language	Result	Execution time	Memory
293047		Leonardo16	Split the Attractions (IOI19_split)	C++14	Compilation error	0 ms	0 KiB

split

///   Code by Leonardo16
/// “Your focus determines your reality.” – Qui-Gon Jinn
#include<bits/stdc++.h>
using namespace std;
#pragma GCC optimize("Ofast","unroll-loops","omit-frame-pointer","inline")
//#pragma GCC option("arch=native","tune=native","no-zero-upper")
//#pragma GCC target("avx2")
//#define int  long long
#define ll long long
#define sz size
#define ull unsigned long long
#define ld long double
#define ii pair<int,int>
#define fst first
#define scd second
#define vi vector<int>
#define vii vector<ii>
#define pb push_back
#define pf push_front
#define fl '\n'
#define el endl
#define all(x) x.begin() , x.end()
#define rall(x) x.rbegin() , x.rend()
/// Functions
#define db(x) cerr << #x << ": " << (x) << '\n';
#define random() __builtin_ia32_rdtsc()
#define lg2(x) 31-__builtin_clz(x)
#define lg2ll(x) 63-__builtin_clzll(x)
#define pi acos(-1)
#define YN(x) cout<<((x)?("YES"):("NO"))<<fl;
#define yn(x) cout<<((x)?("Yes"):("No"))<<fl;
#define des(x,s1,s2,end1,end2) cout<<((x)?(s1):(s2))<<fl;if(x){end1;}else{end2;}
#define precision(x) cout.setf(ios::fixed);cout.precision(x);
/// Red-Black Tree Template
//#include <ext/pb_ds/assoc_container.hpp>
//#include <ext/pb_ds/tree_policy.hpp>
//using namespace __gnu_pbds;
//typedef tree < long long ,  null_type ,  less<long long> ,  rb_tree_tag ,  tree_order_statistics_node_update > ordered_set;
//#define less_than(n) order_of_key(n)
//#define en_pos(n) find_by_order(n)
/// Prime numbers  173,179,311,331,737,1009,2011,2027,3079,4001,100003
///=====================================================================
vi g[200005];
vector<int>v;
bool mk[200005];
int n,a,b,c;

void dfs(int u){
    if(v.sz()<b)v.pb(u);
    else return;
    mk[u]=true;

    for(auto v:g[u]){
        if(mk[v])continue;
        dfs(v);
    }
}

int* find_split(int nn,int aa,int bb,int cc,int p[],int q[]){
    n=nn;a=aa;b=bb;c=cc;

    static int sol[200005];

    for(int i=0;i<n;i++){
        sol[i]=0;
    }
    for(int i=0;i<=sizeof(p);i++){
        g[p[i]].pb(q[i]);
        g[q[i]].pb(p[i]);
    }
    dfs(0);

    for(auto it:v){
        sol[it]=2;
    }
    for(int i=0;i<n;i++){
        if(sol[i]==0){
            sol[i]=1;
            break;
        }
    }

    for(int i=0;i<n;i++){
        if(sol[i]==0){
            sol[i]=3;
        }
    }
    return sol;
}

main(){
    ios_base::sync_with_stdio(0);cin.tie(0);
//    int p[]= {0, 0, 0, 0, 0, 0, 1, 3, 4, 5};
//    int q[]= {1, 2, 3, 4, 6, 8, 7, 7, 5, 6};
//
//    int *sol=find_split(9, 1, 4, 3,p,q);
//    for(int i=0;i<n;i++){
//        cout<<*(sol+i)<<" ";
//    }
}

Compilation message (stderr)

split.cpp: In function 'void dfs(int)':
split.cpp:49:14: warning: comparison of integer expressions of different signedness: 'std::vector<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   49 |     if(v.sz()<b)v.pb(u);
      |        ~~~~~~^~
split.cpp: In function 'int* find_split(int, int, int, int, int*, int*)':
split.cpp:67:28: warning: 'sizeof' on array function parameter 'p' will return size of 'int*' [-Wsizeof-array-argument]
   67 |     for(int i=0;i<=sizeof(p);i++){
      |                            ^
split.cpp:59:49: note: declared here
   59 | int* find_split(int nn,int aa,int bb,int cc,int p[],int q[]){
      |                                             ~~~~^~~
split.cpp:67:18: warning: comparison of integer expressions of different signedness: 'int' and 'long unsigned int' [-Wsign-compare]
   67 |     for(int i=0;i<=sizeof(p);i++){
      |                 ~^~~~~~~~~~~
split.cpp: At global scope:
split.cpp:91:6: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
   91 | main(){
      |      ^
/tmp/ccazIdno.o: In function `main':
grader.cpp:(.text.startup+0x0): multiple definition of `main'
/tmp/cc47esSn.o:split.cpp:(.text.startup+0x0): first defined here
/tmp/ccazIdno.o: In function `main':
grader.cpp:(.text.startup+0x265): undefined reference to `find_split(int, int, int, int, std::vector<int, std::allocator<int> >, std::vector<int, std::allocator<int> >)'
collect2: error: ld returned 1 exit status