Submission #540678

#	Time	Username	Problem	Language	Result	Execution time	Memory
540678		Turkhuu	Arranging Shoes (IOI19_shoes)	C++17	10 / 100	1094 ms	1852 KiB

shoes

#include "shoes.h"
#include <bits/stdc++.h>

using namespace std;

//template by Geothermal
void __print(int x) {cerr << x;}
void __print(long long x) {cerr << x;}
void __print(float x) {cerr << x;}
void __print(double x) {cerr << x;}
void __print(long double x) {cerr << x;}
void __print(char x) {cerr << '\'' << x << '\'';}
void __print(bool x) {cerr << (x ? "true" : "false");}

template<typename T, typename V>
void __print(const pair<T, V> &x) {cerr << '{'; __print(x.first); cerr << ", "; __print(x.second); cerr << '}';}
template<typename T>
void __print(const T &x) {int f = 0; cerr << '{'; for (auto &i: x) cerr << (f++ ? ", " : ""), __print(i); cerr << "}";}
void _print() {cerr << "]\n";}
template <typename T, typename... V>
void _print(T t, V... v) {__print(t); if (sizeof...(v)) cerr << ", "; _print(v...);}
#define dbg(x...) cerr << " [" << #x << "] = ["; _print(x);

typedef long long ll;
typedef pair<int, int> PI;
typedef pair<ll, ll> PL;
typedef tuple<int, int, int> t3i;
typedef tuple<int, int, int, int> t4i;
typedef vector<int> VI;
typedef vector<ll> VL;
typedef vector<PI> VPI;
typedef vector<bool> VB;
typedef vector<char> VC;
typedef vector<string> VS;
typedef vector<VI> VVI;
typedef vector<VB> VVB;
typedef vector<VL> VVL;
typedef vector<VS> VVS;
typedef vector<VC> VVC;
typedef vector<VPI> VVPI;

#define FOOR(i, a, b) for(int i = a; i <= b; i++)
#define ROOF(i, a, b) for(int i = a; i >= b; i--)
#define FORR(i, a, b) FOOR(i, a, b - 1)
#define ROFF(i, a, b) ROOF(i, a - 1, b)
#define FOR(i, a) FORR(i, 0, a)
#define ROF(i, a) ROFF(i, a, 0)

#define sz(a) (int)((a).size())
#define all(a) (a).begin(), (a).end()
#define lla(a) (a).rbegin(), (a).rend()
#define bk back()
#define fr front()fr 
#define pb push_back
#define pf push_front
#define ppb pop_back()
#define ppf pop_front()
#define LB lower_bound
#define UB upper_bound
#define MINE min_element
#define MAXE max_element
#define f first
#define s second
#define MP make_pair
#define MT make_tuple

template<typename T> using PQ = priority_queue<T>;
template<typename T> using PQG = priority_queue<T, vector<T>, greater<T>>;

template<typename T> bool ckmin(T& a, const T& b) { return b < a ? a = b, true : false; }
template<typename T> bool ckmax(T& a, const T& b) { return a < b ? a = b, true : false; }

const vector<int> dx = {0, 0, -1, 1};
const vector<int> dy = {-1, 1, 0, 0};
const ll infll = 10000000000000000;
const int inf = 2000000000;
const int mod = 1000000007;
const int mod99 = 998244353;

ll count_swaps(vector<int> a){
  int n = sz(a) / 2;
  vector<bool> vis(2 * n, false);
  ll ans = 0;
  for(int i = 0; i < 2 * n; i += 2){
    int j = i + 1;
    while(abs(a[j]) != abs(a[i])){
      j++;
    }
    for(int k = j; k >= i + 2; k--){
      swap(a[k], a[k - 1]);
      ans++;
    }
    if(a[i] > 0){
      swap(a[i + 1], a[i]);
      ans++;
    }
  }
  return ans;
}

• Subtask 1: 10 / 10
• Subtask 2: 0 / 20
• Subtask 3: 0 / 20
• Subtask 4: 0 / 15
• Subtask 5: 0 / 20
• Subtask 6: 0 / 15