#include <bits/stdc++.h> using namespace std; signed main(){ ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0); int n, q; cin >> n >> q; int ans = 0, cnt = 0; while(q--){ int x; cin >> x; if(x > 0)cnt++; else{ ans += max(cnt - 1, 0); cnt = 0; } } cout << ans + max(cnt - 1, 0) << "\n"; }