Submission #236160

#	Time	Username	Problem	Language	Result	Execution time	Memory
236160		VEGAnn	Sažetak (COCI17_sazetak)	C++14	64 / 160	34 ms	896 KiB

sazetak

#include <bits/stdc++.h>
#define sz(x) ((int)x.size())
#define a3 array<int, 3>
using namespace std;
const int oo = 2e9;
const int M = 20;
#ifdef _LOCAL
const int N = int(1.5e8);
#else
const int N = int(5e6) + 10;
#endif
bitset<N> mrk;
int n, m, a[M], ans = 0;

int main(){
    ios_base::sync_with_stdio(0); cin.tie(0);

#ifdef _LOCAL
    freopen("in.txt","r",stdin);
#endif // _LOCAL

    cin >> n >> m;

    mrk[n] = 1;

    for (int i = 0; i < m; i++){
        cin >> a[i];

        for (int j = a[i]; j <= n; j += a[i])
            mrk[j] = 1;
    }

    for (int i = n; i > 1; i--)
        if (mrk[i] && mrk[i - 1])
            ans++;

    cout << ans;

    return 0;
}

• Subtask 1: 64 / 160