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Submission #156247

# Submission time Handle Problem Language Result Execution time Memory
156247 2019-10-04T16:11:10 Z nikolapesic2802 Sequence (BOI14_sequence) C++14
100 / 100
 175 ms 1392 KB 
#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;}

ll sol=LLONG_MAX,lim=16;
vector<ll> pwr;
void gen(vector<int> req,int digit,ll trsol,bool nula)
{
    if(req.empty())
    {
        if(nula)
            trsol+=pwr[digit];
        sol=min(sol,trsol);
        return;
    }
    if(req.size()==1)
    {
        if(req[0]==1)
            trsol+=pwr[digit+1];
        else
        {
            if(req[0]&1)
            {
                int frst;
                for(int i=9;i>0;i--)
                    if(req[0]&(1<<i))
                        frst=i;
                for(int i=9;i>frst;i--)
                    if(req[0]&(1<<i))
                        trsol+=i*pwr[digit],digit++;
                trsol+=frst*pwr[digit+1];
            }
            else
                for(int i=9;i>0;i--)
                    if(req[0]&(1<<i))
                        trsol+=i*pwr[digit],digit++;
        }
        sol=min(sol,trsol);
        return;
    }
    if(digit>5||trsol+pwr[digit]>=sol)
        return;
    int n=req.size();
    for(int y=0;y<10;y++)
    {
        vector<int> sl;
        if(y)
            sl.pb(0);
        int tr=y;
        bool nulaffs=0;
        if(y==0&&(req[0]&1))
            nulaffs=1;
        for(auto p:req)
        {
            if(tr==0)
                sl.pb(0);
            sl.back()|=p&(~(1<<tr));
            tr=(tr+1)%10;
        }
        while(sl.size()&&sl.back()==0)
            sl.pop_back();
        gen(sl,digit+1,trsol+pwr[digit]*y,nulaffs);
    }
}
int main()
{
	pwr.pb(1);
	for(int i=0;i<16;i++)
        pwr.pb(pwr.back()*10);
    int n,a;
    scanf("%i",&n);
    vector<int> req;
    for(int i=0;i<n;i++)
        scanf("%i",&a),req.pb(1<<a);
    gen(req,0,0,0);
    printf("%lld\n",sol);
    return 0;
}

Compilation message

sequence.cpp: In function 'void gen(std::vector<int>, int, long long int, bool)':
sequence.cpp:65:9: warning: unused variable 'n' [-Wunused-variable]
     int n=req.size();
         ^
sequence.cpp: In function 'int main()':
sequence.cpp:93:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     scanf("%i",&n);
     ~~~~~^~~~~~~~~
sequence.cpp:96:23: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
         scanf("%i",&a),req.pb(1<<a);
         ~~~~~~~~~~~~~~^~~~~~~~~~~~~

Subtask #1
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 256 KB Output is correct
2 Correct 3 ms 376 KB Output is correct
3 Correct 2 ms 256 KB Output is correct
4 Correct 2 ms 376 KB Output is correct
5 Correct 2 ms 256 KB Output is correct
6 Correct 2 ms 380 KB Output is correct
7 Correct 2 ms 376 KB Output is correct
8 Correct 2 ms 256 KB Output is correct
9 Correct 2 ms 256 KB Output is correct
10 Correct 4 ms 256 KB Output is correct
11 Correct 2 ms 376 KB Output is correct
12 Correct 2 ms 256 KB Output is correct
13 Correct 3 ms 376 KB Output is correct
14 Correct 2 ms 376 KB Output is correct
15 Correct 2 ms 256 KB Output is correct

Subtask #2
33.0 / 33.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 3 ms 256 KB Output is correct
3 Correct 2 ms 376 KB Output is correct
4 Correct 2 ms 376 KB Output is correct
5 Correct 2 ms 376 KB Output is correct
6 Correct 2 ms 256 KB Output is correct
7 Correct 3 ms 256 KB Output is correct
8 Correct 2 ms 256 KB Output is correct
9 Correct 2 ms 256 KB Output is correct
10 Correct 2 ms 256 KB Output is correct
11 Correct 1 ms 376 KB Output is correct
12 Correct 4 ms 376 KB Output is correct
13 Correct 2 ms 256 KB Output is correct
14 Correct 2 ms 376 KB Output is correct
15 Correct 3 ms 256 KB Output is correct
16 Correct 2 ms 252 KB Output is correct
17 Correct 2 ms 376 KB Output is correct
18 Correct 3 ms 376 KB Output is correct
19 Correct 3 ms 256 KB Output is correct
20 Correct 6 ms 376 KB Output is correct
21 Correct 3 ms 376 KB Output is correct
22 Correct 6 ms 376 KB Output is correct
23 Correct 6 ms 256 KB Output is correct

Subtask #3
25.0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 29 ms 504 KB Output is correct
3 Correct 30 ms 504 KB Output is correct
4 Correct 17 ms 504 KB Output is correct
5 Correct 17 ms 504 KB Output is correct
6 Correct 15 ms 376 KB Output is correct
7 Correct 116 ms 1012 KB Output is correct
8 Correct 81 ms 884 KB Output is correct
9 Correct 160 ms 1392 KB Output is correct
10 Correct 160 ms 1264 KB Output is correct

Subtask #4
33.0 / 33.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 3 ms 376 KB Output is correct
3 Correct 2 ms 376 KB Output is correct
4 Correct 2 ms 376 KB Output is correct
5 Correct 86 ms 884 KB Output is correct
6 Correct 2 ms 256 KB Output is correct
7 Correct 2 ms 256 KB Output is correct
8 Correct 3 ms 376 KB Output is correct
9 Correct 2 ms 256 KB Output is correct
10 Correct 2 ms 376 KB Output is correct
11 Correct 161 ms 1264 KB Output is correct
12 Correct 162 ms 1388 KB Output is correct
13 Correct 2 ms 376 KB Output is correct
14 Correct 5 ms 376 KB Output is correct
15 Correct 4 ms 376 KB Output is correct
16 Correct 2 ms 256 KB Output is correct
17 Correct 2 ms 256 KB Output is correct
18 Correct 3 ms 376 KB Output is correct
19 Correct 2 ms 376 KB Output is correct
20 Correct 2 ms 376 KB Output is correct
21 Correct 3 ms 256 KB Output is correct
22 Correct 3 ms 256 KB Output is correct
23 Correct 6 ms 376 KB Output is correct
24 Correct 3 ms 376 KB Output is correct
25 Correct 6 ms 376 KB Output is correct
26 Correct 6 ms 376 KB Output is correct
27 Correct 30 ms 504 KB Output is correct
28 Correct 30 ms 504 KB Output is correct
29 Correct 17 ms 376 KB Output is correct
30 Correct 17 ms 504 KB Output is correct
31 Correct 15 ms 376 KB Output is correct
32 Correct 116 ms 1012 KB Output is correct
33 Correct 81 ms 760 KB Output is correct
34 Correct 160 ms 1392 KB Output is correct
35 Correct 161 ms 1308 KB Output is correct
36 Correct 131 ms 1012 KB Output is correct
37 Correct 171 ms 1260 KB Output is correct
38 Correct 107 ms 888 KB Output is correct
39 Correct 175 ms 1264 KB Output is correct
40 Correct 175 ms 1392 KB Output is correct