coderforce 586A Alena's Schedule

#include<stdio.h>#include<string.h>#include<algorithm>using namespace std;const int maxm=1e2+10;int a[maxm];int main(){    int n;    while(scanf("%d",&n)!=EOF)    {        a[0]=0;        a[n+1]=0;        int cnt=0;        for(int i=1;i<=n;i++)        {            scanf("%d",&a[i]);        }        for(int i=1;i<=n;i++)        {            if((a[i-1]&&a[i+1])||(a[i]))            {                cnt++;            }        }        printf("%d\n",cnt);    }    return 0;}