C task contest 8

#include <bits/stdc++.h>
using namespace std;
int main(){
    int n,i;
    bool a[101] = {false};
    int first_para = -1;
    cin >> n;
    int last_para = n-1;
    cin >> a[0];
    for(i = 0; i < n; i++){
        cin >> a[i];
        if(a[i] && first_para<0)
            first_para = i;
    }
    while(!a[last_para]){
        last_para--;
    }
    cout << first_para << endl;
    cout << last_para << endl;
    int result = 0;
    int cnt = 0;
    for(i = first_para; i <= last_para; i++){
        if(!a[i] && cnt!=0){
            cnt++;
        }else{
            if(cnt>1){
                result-=cnt;
                cnt = 0;
            }
        }
        result++;
    }
    cout << result << endl;
    return 0;
}