Submission #646414

#	Time	Username	Problem	Language	Result	Execution time	Memory
646414		inksamurai	Sažetak (COCI17_sazetak)	C++17	64 / 160	27 ms	19212 KiB

sazetak

#include <bits/stdc++.h>
using namespace std;
#define rep(i,n) for(int i=0;i<n;i++)
#define rng(i,c,n) for(int i=c;i<n;i++)
#define per(i,n) for(int i=n-1;i>=0;i--)
#define fi first
#define se second
#define pb push_back
#define sz(a) (int)a.size()
#define vec(...) vector<__VA_ARGS__>
#define _3dSgv16 ios::sync_with_stdio(0),cin.tie(0)
typedef long long ll;
using pii=pair<int,int>;
using vi=vector<int>;
void print(){cout<<'\n';}
template<class h,class...t>
void print(const h&v,const t&...u){cout<<v<<' ',print(u...);}
// e

signed main(){
_3dSgv16;
	int n,k;
	cin>>n>>k;
	assert(n<=5e6);
	vi usd(n+1,0);
	rep(i,k){
		int v;
		cin>>v;
		for(int j=v;j<=n;j+=v){
			usd[j]=1;
		}
	}	
	usd[n]=1;
	usd[0]=1;
	int ans=0;
	rng(i,1,n+1){
		if(usd[i] and usd[i-1]){
			ans+=1;
		}
	}
	print(ans);
}

• Subtask 1: 64 / 160