Cod sursa(job #541566)
Utilizator | Data | 25 februarie 2011 12:09:24 | |
---|---|---|---|
Problema | Light2 | Scor | 0 |
Compilator | cpp | Status | done |
Runda | Romanian Master in Mathematics and Sciences 2011, Ziua 1 | Marime | 0.36 kb |
#include<iostream>
#include<fstream>
using namespace std;
ifstream f("light2.in");
ofstream g("light2.out");
int n, k, v[100], i, j, nr, a[100];
int main()
{
f>>n>>k;
for(i=1;i<=k;i++)
f>>a[i];
for(i=1;i<=k;i++)
for(j=a[i];j<=n;j=j+a[i])
if(v[j]==0)
v[j]=1;
else
v[j]=0;
for(i=1;i<=n;i++)
if(v[i]==1)
nr++;
g<<nr;
return 0;
}