Submission #578285

#	Time	Username	Problem	Language	Result	Execution time	Memory
578285		Theo830	Mechanical Doll (IOI18_doll)	C++17	0 / 100	1 ms	340 KiB

doll

#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
ll INF = 1e18+7;
ll MOD = 998244353;
typedef pair<ll,ll> ii;
#define iii pair<ll,ii>
#define f(i,a,b) for(ll i = a;i < b;i++)
#define pb push_back
#define vll vector<ll>
#define F first
#define S second
#define all(x) (x).begin(), (x).end()
///I hope I will get uprating and don't make mistakes
///I will never stop programming
///sqrt(-1) Love C++
///Please don't hack me
///@TheofanisOrfanou Theo830
///Think different approaches (bs,dp,greedy,graphs,shortest paths,mst)
///Stay Calm
///Look for special cases
///Beware of overflow and array bounds
///Think the problem backwards
///Training
#include "doll.h"
vector<int> X,Y,C;
ll pos = 1;
void solve(ll s,vll arr){
    if(arr.size() == 1){
        X[s - 1] = Y[s - 1] = arr[0];
        return;
    }
    vll exo[2];
    f(i,0,arr.size()){
        exo[i % 2].pb(arr[i]);
    }
    if(arr.size() % 2){
        exo[1].pb(exo[0].back());
        exo[0].back() = -s;
    }
    X[s - 1] = -pos;
    Y[s - 1] = -(pos + 1);
    pos += 2;
    solve(-X[s - 1],exo[0]);
    solve(-Y[s - 1],exo[1]);
}
void create_circuit(int M, std::vector<int> A) {
      int n = A.size();
      f(i,0,M+1){
          C.pb(0);
      }
      C[0] = A[0];
      vll mp[M+5];
      set<ll>ex;
      A.pb(0);
      f(i,0,n){
        mp[A[i]].pb(A[i+1]);
      }
      set<ll>ev;
      f(i,0,n){
          if(ev.count(A[i-1])){
            continue;
          }
          ev.insert(A[i]);
          C[A[i]] = pos;
          pos++;
          solve(pos - 1,mp[A[i]]);
      }
      answer(C, X, Y);
}

Compilation message (stderr)

doll.cpp: In function 'void solve(ll, std::vector<long long int>)':
doll.cpp:8:33: warning: comparison of integer expressions of different signedness: 'll' {aka 'long long int'} and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
    8 | #define f(i,a,b) for(ll i = a;i < b;i++)
......
   34 |     f(i,0,arr.size()){
      |       ~~~~~~~~~~~~~~             
doll.cpp:34:5: note: in expansion of macro 'f'
   34 |     f(i,0,arr.size()){
      |     ^

• Subtask 1: 0 / 2
• Subtask 2: 0 / 4
• Subtask 3: 0 / 10
• Subtask 4: 0 / 10
• Subtask 5: 0 / 18
• Subtask 6: 0 / 56