Submission #3704987

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

#define NDEBUG
#include <cassert>

typedef long long ll;
typedef long double Double;
typedef unsigned long long ull;
typedef pair<int,int> ii;
typedef pair<ll,ll> llll;
typedef pair<double,double> dd;

typedef vector<int> vi;
typedef vector<vector<int>> vvi;
typedef vector<ii> vii;
typedef vector<vector<ii>> vvii;
typedef vector<ll> vll;
typedef vector<string> vs;
typedef vector<double> vd;
typedef vector<long double> vD;

#define sz(a)  int((a).size())
#define pb  push_back
#define FOR(var,from,to) for(int var=(from);var<=(to);++var)
#define rep(var,n)  for(int var=0;var<(n);++var)
#define rep1(var,n)  for(int var=1;var<=(n);++var)
#define repC2(vari,varj,n)  for(int vari=0;vari<(n)-1;++vari)for(int varj=vari+1;varj<(n);++varj)
#define ALL(c)  (c).begin(),(c).end()
#define RALL(c)  (c).rbegin(),(c).rend()
#define tr(i,c)  for(auto i=(c).begin(); i!=(c).end(); ++i)
#define found(s,e)  ((s).find(e)!=(s).end())
#define mset(arr,val)  memset(arr,val,sizeof(arr))
#define mid(x,y) ((x)+((y)-(x))/2)
#define IN(x,a,b) ((a)<=(x)&&(x)<=(b))
#define cons make_pair


ll gcd(ll a, ll b) { while(a) swap(a, b%=a); return b; }

const ll MOD=1000000007LL;


const int f753 = (1 << 7) | (1 << 5) | (1 << 3);

inline bool check(int x) {
    int f = 0;
    while (x) {
        int d = x % 10;
        f |= (1 << d);
        x /= 10;
    }
    return (f & f753) == f753;
}

int solve(int N) {
    vi base {0};

    int ans = 0;
    for (int k=1; k<=9; ++k) {
        vi b2;
        for (int x : base) {
            for (int d=3; d<=7; d+=2) {
                int y = 10*x + d;
                if (y <= N) {
                    if (check(y)) ++ans;
                    b2.pb(y);
                }
            }
        }
        base = b2;
    }
    return ans;
}

int main() {
    int N; cin >> N;
    cout << solve(N) << endl;
    return 0;
}

Submission Info

Submission Time
Task C - 755
User naoya_t
Language C++14 (GCC 5.4.1)
Score 300
Code Size 1969 Byte
Status
Exec Time 2 ms
Memory 512 KB

Test Cases

Set Name Score / Max Score Test Cases
Sample 0 / 0 a01, a02, a03
All 300 / 300 a01, a02, a03, b04, b05, b06, b07, b08, b09, b10, b11, b12, b13, b14, b15, b16, b17, b18, b19, b20
Case Name Status Exec Time Memory
a01 1 ms 256 KB
a02 1 ms 256 KB
a03 2 ms 512 KB
b04 1 ms 256 KB
b05 1 ms 256 KB
b06 1 ms 256 KB
b07 1 ms 256 KB
b08 1 ms 256 KB
b09 1 ms 256 KB
b10 1 ms 256 KB
b11 1 ms 256 KB
b12 1 ms 256 KB
b13 1 ms 256 KB
b14 1 ms 256 KB
b15 1 ms 256 KB
b16 1 ms 256 KB
b17 2 ms 384 KB
b18 2 ms 512 KB
b19 2 ms 512 KB
b20 2 ms 512 KB