Submission #156226

#	Time	Username	Problem	Language	Result	Execution time	Memory
156226		nikolapesic2802	Sequence (BOI14_sequence)	C++14	0 / 100	276 ms	504 KiB

sequence

#include <bits/stdc++.h>
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>
#include <ext/rope>

#define ll long long
#define pb push_back
#define sz(x) (int)(x).size()
#define mp make_pair
#define f first
#define s second
#define all(x) x.begin(), x.end()
#define D(x) cerr << #x << " is " << (x) << "\n";

using namespace std;
using namespace __gnu_pbds;
using namespace __gnu_cxx;

mt19937 rng(chrono::steady_clock::now().time_since_epoch().count());
template<class T> using ordered_set = tree<T, null_type, less<T>, rb_tree_tag,tree_order_statistics_node_update>; ///find_by_order(),order_of_key()
template<class T1, class T2> ostream& operator<<(ostream& os, const pair<T1,T2>& a) { os << '{' << a.f << ", " << a.s << '}'; return os; }
template<class T> ostream& operator<<(ostream& os, const vector<T>& a){os << '{';for(int i=0;i<sz(a);i++){if(i>0&&i<sz(a))os << ", ";os << a[i];}os<<'}';return os;}
template<class T> ostream& operator<<(ostream& os, const set<T>& a) {os << '{';int i=0;for(auto p:a){if(i>0&&i<sz(a))os << ", ";os << p;i++;}os << '}';return os;}
template<class T> ostream& operator<<(ostream& os, const multiset<T>& a) {os << '{';int i=0;for(auto p:a){if(i>0&&i<sz(a))os << ", ";os << p;i++;}os << '}';return os;}
template<class T1,class T2> ostream& operator<<(ostream& os, const map<T1,T2>& a) {os << '{';int i=0;for(auto p:a){if(i>0&&i<sz(a))os << ", ";os << p;i++;}os << '}';return os;}

int sol=INT_MAX;
vector<int> pwr,em(10);
void gen(vector<vector<int> > req,int digit,int trsol)
{
    if(digit>5)
        return;
    bool done=1;
    for(auto p:req)
        for(auto q:p)
            if(q)
                done=0;
    if(done)
    {
        sol=min(sol,trsol);
        return;
    }
    int n=req.size();
    for(int y=0;y<10;y++)
    {
        vector<vector<int> > sl;
        if(y)
            sl.pb(em);
        int tr=y;
        for(auto p:req)
        {
            if(tr==0)
                sl.pb(em);
            for(int i=0;i<10;i++)
                if(i!=tr&&p[i])
                    sl.back()[i]=1;
            tr=(tr+1)%10;
        }
        gen(sl,digit+1,trsol+pwr[digit]*y);
    }
}
int main()
{
	pwr.pb(1);
	for(int i=0;i<8;i++)
        pwr.pb(pwr.back()*10);
    int n,a;
    scanf("%i",&n);
    vector<vector<int> > req;
    for(int i=0;i<n;i++)
        scanf("%i",&a),em[a]=1,req.pb(em),em[a]=0;
    gen(req,0,0);
    printf("%i\n",sol);
    return 0;
}

Compilation message (stderr)

sequence.cpp: In function 'void gen(std::vector<std::vector<int> >, int, int)':
sequence.cpp:43:9: warning: unused variable 'n' [-Wunused-variable]
     int n=req.size();
         ^
sequence.cpp: In function 'int main()':
sequence.cpp:68:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     scanf("%i",&n);
     ~~~~~^~~~~~~~~
sequence.cpp:71:42: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
         scanf("%i",&a),em[a]=1,req.pb(em),em[a]=0;
         ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~

• Subtask 1: 0 / 9
• Subtask 2: 0 / 33
• Subtask 3: 0 / 25
• Subtask 4: 0 / 33