Submission #659535

#	Time	Username	Problem	Language	Result	Execution time	Memory
659535		onebit1024	Stove (JOI18_stove)	C++17	20 / 100	234 ms	468 KiB

stove

#include <bits/stdc++.h>
using namespace std;

#define int long long
#define pb push_back
#define all(c) c.begin(), c.end()
#define endl "\n"

const double PI=3.141592653589;


void __print(int x) {cerr << x;}
void __print(long x) {cerr << x;}
void __print(unsigned x) {cerr << x;}
void __print(unsigned long x) {cerr << x;}
void __print(unsigned 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(const char *x) {cerr << '\"' << x << '\"';}
void __print(const string &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...);}
#ifndef ONLINE_JUDGE
#define dbg(x...) cerr << "LINE(" << __LINE__ << ") -> " <<"[" << #x << "] = ["; _print(x)
#else
#define dbg(x...)
#endif


vector<int>a;
int n,k;

void solve()
{
    cin >> n >> k;
    a.resize(n);
    int ans = 1e10;
    for(int &u : a)cin >> u;
    for(int i = 0;i<(1ll<<22);++i){
        int val = __builtin_popcount(i);
        if(val%2)continue;
        int op = val/2;
        if(op > k)continue;
        bool m = 0;
        int start = 0, end = 0;
        vector<int>taken(22);
        int res = 0;
        for(int j = 0;j<22;++j){
            if(i&(1ll<<j)){
                if(!m){
                    start = j;
                }else{
                    end = j;
                    for(int k = start;k<end;++k)taken[k] = 1;
                    res+=(end-start);
                }
                m = !m;
            }
        }
        bool ok = 1;
        for(auto x : a){
            if(!taken[x]){
                ok = 0;
            }
        }
        if(!ok)continue;
        ans = min(ans, res);
    }
    cout << ans << endl;
}   

int32_t main()
{

    ios_base::sync_with_stdio(false);
    cin.tie(NULL);
    cout.tie(NULL);


    // freopen("input.txt", "r", stdin);
    // freopen("output.txt", "w", stdout);
    

    int T=1;
    for(int i = 1;i<=T;++i)
    {
        // cout << "Case #" << i << ": ";
        solve();
    }
}

• Subtask 1: 20 / 20
• Subtask 2: 0 / 30
• Subtask 3: 0 / 50