Submission #1018328

#	Time	Username	Problem	Language	Result	Execution time	Memory
1018328		vjudge1	Seats (IOI18_seats)	C++17	11 / 100	4098 ms	32644 KiB

seats

#include <bits/stdc++.h>
#include "seats.h"
// #pragma GCC optimize("Ofast")
// #pragma GCC target("avx2")
// #pragma GCC optimization ("O3")
// #pragma GCC optimization ("unroll-loops")
// #pragma GCC target("popcnt")
#define endl '\n'
#define mp make_pair
#define pb push_back
#define f first
#define s second
#define fo(i,n) for(auto i =0 ; i < n;i++)
#define fore(i,l,r) for(auto i = l; i < r;i++)
#define forex(i,r,l) for(auto i = r; i >= l; i--)
#define ffo(i,n) forex(i,n-1,0)
#define all(x) x.begin(),x.end()
#define lsb(x) x&(-x)
#define sz(x) (int)x.size()
#define gcd(a,b) __gcd(a,b)
#define vii vector<ii>
#define pq_min(a) priority_queue<a, vector<a>, greater<a>>
#define fls cout.flush()
using namespace std;
using ll = long long;
using ull = unsigned long long;
using vi = vector<int>;
using ii = pair<int,int>;
using mii = map<int,int>;
using lld = long double;
void valid(ll in){cout<<((in)?"YES\n":"NO\n");}
vi r, c;
int n,m;
void give_initial_chart(int H, int W, std::vector<int> R, std::vector<int> C) {
  r = R;c=C;n=H;m=W;
}

int swap_seats(int a, int b) {
    swap(r[a], r[b]);swap(c[a], c[b]);
    int mx=1e9,Mx=0,my=1e9,My=0;
    int ans = 0;
    fo(i,n*m){
        mx=min(mx, r[i]);
        Mx=max(Mx, r[i]);
        my=min(my, c[i]);
        My=max(My, c[i]);
        if((Mx-mx+1)*(My-my+1) == i+1)
            ans++;
    }
    return ans;
}

• Subtask 1: 5 / 5
• Subtask 2: 6 / 6
• Subtask 3: 0 / 20
• Subtask 4: 0 / 6
• Subtask 5: 0 / 33
• Subtask 6: 0 / 30