Submission #735446

#	Time	Username	Problem	Language	Result	Execution time	Memory
735446		Nahian9696	Swapping Cities (APIO20_swap)	C++17	13 / 100	132 ms	11312 KiB

swap

#include "swap.h"

#include <iostream>
#include <iomanip>
#include <chrono>

#include <cmath>
#include <cstring>
#include <algorithm>


#include <set>
#include <map>
#include <list>
#include <stack>
#include <queue>
#include <deque>
#include <utility>
#include <string>
#include <vector>
#include <bitset>



using std::min;
using std::max;
using std::sort;
using std::swap;
using std::fixed;
using std::to_string;
using std::make_pair;
using std::upper_bound;
using std::lower_bound;
using std::setprecision;

using std::cin;
using std::cout;

using std::set;
using std::map;
using std::list;
using std::pair;
using std::less;
using std::tuple;
using std::stack;
using std::queue;
using std::deque;
using std::string;
using std::vector;
using std::bitset;
using std::greater;
using std::priority_queue;





typedef long double                         ld;
typedef unsigned                            ui;
typedef long long                           lli;
typedef unsigned long long                  ulli;
typedef vector<int32_t>                     vi;
typedef vector<ld>                          vld;
typedef vector<ui>                          vui;
typedef vector<lli>                         vlli;
typedef vector<ulli>                        vulli;
typedef list<int32_t>                       lsi;
typedef list<ld>                            lsld;
typedef list<ui>                            lsui;
typedef list<lli>                           lslli;
typedef list<ulli>                          lsulli;
typedef set<int32_t>                        si;
typedef set<ld>                             sld;
typedef set<ui>                             sui;
typedef set<lli>                            slli;
typedef set<ulli>                           sulli;

typedef pair<int32_t, int32_t>              pii;
typedef pair<lli, lli>                      pll;



// #define int                                 int64_t

#define endl                                "\n"
#define inp(n)                              int n; cin >> n
#define Inp(n)                              lli n; cin >> n
#define inpstr(s)                           string s; cin >> s
#define inp2(a,b)                           int a,b; cin >> a >> b
#define Inp2(a,b)                           lli a,b; cin >> a >> b
#define inparr(arr,n)                       int arr[n]; f0(t_ind, n) cin >> arr[t_ind]
#define Inparr(arr,n)                       lli arr[n]; f0(t_ind, n) cin >> arr[t_ind]

#define f0(i,n)                             for(int32_t i = 0; i <  (n); i++)
#define f1(i,n)                             for(int32_t i = 1; i <= (n); i++)
#define rep0(i,l,r)                         for(int32_t i=(l); i <  (r); i++)
#define rep1(i,l,r)                         for(int32_t i=(l); i <= (r); i++)

#define testIn                              cin >> test
#define tests                               for(int32_t testNo=1; testNo <= (test); testNo++)

#define all(x)                              (x).begin(), (x).end()
#define rall(x)                             (x).rbegin(), (x).rend()
#define asrt(v)                             sort(all(v))
#define dsrt(v)                             sort(rall(v))
#define revStr(str)                         string(rall(str))
#define len(a)                              ((int64_t)(a).size())
#define front_zero(n)                       __builtin_clzll(n)
#define back_zero(n)                        __builtin_ctzll(n)
#define total_one(n)                        __builtin_popcountll(n)
#define lcm(a, b)                           (((a)*(b))/gcd(a,b))
#define mem(a, b)                           memset(a, b, sizeof(a))

#define pb                                  push_back
#define pf                                  push_front
#define mp                                  make_pair
#define ff                                  first
#define ss                                  second

#define yes                                 cout << "yes" << endl
#define no                                  cout << "no" << endl
#define Yes                                 cout << "Yes" << endl
#define No                                  cout << "No" << endl
#define YES                                 cout << "YES" << endl
#define NO                                  cout << "NO" << endl
#define finish                              return 0
#define clean                               fflush(stdout)

#define Inf                                 (int32_t)(1e9)
#define INF                                 (lli)(1e18)
#define Eps                                 (ld)(1e-9)
#define EPS                                 (ld)(1e-18)
#define PI                                  (ld)(3.141592653589793238462643383279502884197169L)
#define MOD                                 (int32_t)(1e9+7)
#define MXN                                 (int32_t)(1e5+7)




bool cycle = false, line = false;
int n;
vector<pii> str;
int stval[100005];
int mx = 0;


void init(int N, int M,
          std::vector<int> U, std::vector<int> V, std::vector<int> W) {
    

    n = N;

    if(M == N) {
        cycle = true;
        f0(i, M) {
            mx = max(mx, W[i]);
        }
    } else {
        int deg[N] = {0};
        f0(i, M) {
            deg[U[i]]++;
            deg[V[i]]++;
        }
        if(deg[0] <= 2) line = true;
    }
    if(!line) {
        f0(i, M) {
            stval[V[i]] = W[i];
            str.pb({W[i], V[i]});
        }
        sort(all(str));
    }
}

int getMinimumFuelCapacity(int X, int Y) {

    if(cycle) {
        return mx;
    }

    if(line) {
        return -1;
    }

    vi ans;

    if(X != 0) ans.pb(stval[X]);
    if(Y!= 0) ans.pb(stval[Y]);

    for(auto p: str) {
        if((p.ss != X) && (p.ss != Y)) {
            ans.pb(p.ff);
        }
        if(ans.size() == 3) break;
    }

    return max({ans[0], ans[1], ans[2]});

    // if(X > Y) swap(X, Y);
    // if(X == 0) {

    // } else {

    // }


    return -1;
}

• Subtask 1: 6 / 6
• Subtask 2: 7 / 7
• Subtask 3: 0 / 17
• Subtask 4: 0 / 20
• Subtask 5: 0 / 23
• Subtask 6: 0 / 27