Submission #409411

#	Time	Username	Problem	Language	Result	Execution time	Memory
409411		LptN21	Telefoni (COCI17_telefoni)	C++14	80 / 80	29 ms	844 KiB

telefoni

#include <bits/stdc++.h>
using namespace std;
#define fastIO ios_base::sync_with_stdio(false), cin.tie(NULL), cout.tie(NULL);
#define FF first
#define SS second
#define pb push_back
#define sz(x) (int)x.size()
#define oo 1e15
#define eps 1e-9
#define PI acos(-1.0)
#define lb lower_bound
#define ub upper_bound
typedef long long ll;
typedef unsigned long long ull;
typedef pair<int, int> ii;
const int N = 3e5+7, M=20+7;
const int MOD = 1e9+7;

int n, m, k, t;

int a[N];

signed main() {
    //freopen("test.inp", "r", stdin);
    //freopen("test.out", "w", stdout);
    //fastIO;
    scanf("%d%d", &n, &m);int ans=0;
    for(int v, j=0, i=1;i<=n;i++) {
        scanf("%d", &v);
        if(v) j=0;else j++;
        if(j==m) ans++, j=0;
    }
    printf("%d", ans);
    return 0;
}
/* stuff you should look for
    - int overflow, array bounds
    - special cases (n=1?)
    - do smth instead of do nothing and stay organized
    - WRITE STUFF DOWN
    - DONT JUST STICK ON ONE APPROACH
*/

Compilation message (stderr)

telefoni.cpp: In function 'int main()':
telefoni.cpp:27:10: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   27 |     scanf("%d%d", &n, &m);int ans=0;
      |     ~~~~~^~~~~~~~~~~~~~~~
telefoni.cpp:29:14: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   29 |         scanf("%d", &v);
      |         ~~~~~^~~~~~~~~~

• Subtask 1: 80 / 80