Submission #715176

#	Time	Username	Problem	Language	Result	Execution time	Memory
715176		Ferid20072020	Sirni (COCI17_sirni)	C++14	42 / 140	768 ms	786436 KiB

sirni

/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
#pragma GCC optimize("O3,unroll-loops")
#pragma GCC target("avx,avx2,fma")

#include <bits/stdc++.h>

using namespace std;

#define ll          long long 
#define ull         unsigned long long 
#define ld          long double 
#define ui          unsigned int 
#define f           first
#define s           second
#define ins         insert
#define pb          push_back
#define mp          make_pair
#define ln          '\n'
#define int         ll
#define pii         pair<int , int> 
#define INF         LLONG_MAX
#define vv(a)       vector<a>
#define pp(a, b)    pair<a, b>
#define pq(a)       priority_queue<a>
#define qq(a)       queue<a>
#define ss(a)       set<a>
#define mss(a)      multiset<a>
#define mm(a, b)    map<a, b>
#define mmm(a , b)  multimap<a , b>
#define sz(x)       (x).size()
#define all(x)      (x).begin() , (x).end()
#define fastio                    \
    ios_base::sync_with_stdio(0); \
    cin.tie(0);                   \
    cout.tie(0);

/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////

vector<int> color(1005 , 0);
vector<vector<int>> g(1005);

int n;

bool DFS(int src){
    color[src] = 1;
    for(auto to : g[src]){
        if(color[to] == 0){
            DFS(to);
        }
    }
    for(int i=0 ; i<n ; i++){
        if(color[i] == 0){
            return false;
        }
    }
    return true;
}

void init(){
    for(int i=0 ; i<n ; i++){
        color[i] = 0;
    }
}

void solve(){
    cin >> n;
    vv(int) a(n);
    for(int i=0 ; i<n ; i++){
        cin >> a[i];
    }
    if(n == 1){
        cout << 0;
        return;
    }
    vector<pair<int , pii>> maybe;
    for(int i=0 ; i<n ; i++){
        for(int j=0 ; j<n ; j++){
            if(i != j){
                maybe.pb({min(a[i]%a[j] , a[j]%a[i]) , {i , j}});
            }
        }
    }
    sort(all(maybe));
    int ans = 0;
    for(int i=0 ; i<maybe.size() ; i++){
        init();
        bool check = DFS(0);
        if(check == true){
            cout << ans;
            return;
        }
        else{
            init();
            DFS(maybe[i].s.f);
            if(color[maybe[i].s.s] == 0){
                ans += maybe[i].f;
                g[maybe[i].s.f].pb(maybe[i].s.s);
                g[maybe[i].s.s].pb(maybe[i].s.f);
            }
        }
    }
}


signed main(){
    fastio

    int t = 1;
    //cin >> t;
    while(t--){
        solve();
    }

    return 0;
}

Compilation message (stderr)

sirni.cpp: In function 'void solve()':
sirni.cpp:85:20: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<std::pair<long long int, std::pair<long long int, long long int> > >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   85 |     for(int i=0 ; i<maybe.size() ; i++){
      |                   ~^~~~~~~~~~~~~

• Subtask 1: 14 / 14
• Subtask 2: 14 / 14
• Subtask 3: 14 / 14
• Subtask 4: 0 / 14
• Subtask 5: 0 / 14
• Subtask 6: 0 / 14
• Subtask 7: 0 / 14
• Subtask 8: 0 / 14
• Subtask 9: 0 / 14
• Subtask 10: 0 / 14