Submission #473335

#	Time	Username	Problem	Language	Result	Execution time	Memory
473335		AbdoMo	Garaža (COCI17_garaza)	C++17	0 / 160	4097 ms	1476 KiB

garaza

#include<bits/stdc++.h>
//#define int long long
#define ll long long
#define pb push_back
const int mod = 1e9+7;
using namespace std;
bool comp(string a,string b)
{
    if(a.size()==b.size())
    {
        return a<b;
    }
    return a.size()<b.size();
}

int arr[100005];
int n,q;
int ggcd(int l,int r)
{
    int x=0;
    for(int i=l;i<=r;i++)
    {
        x=__gcd(x,arr[i]);
    }
    return x;
}
void solve(){

    cin>>n>>q;

    for(int i=1;i<=n;i++)
    {
        cin>>arr[i];
    }
    while(q--)
    {
        int x,l,r;
        cin>>x>>l>>r;
        if(x == 1)
        {
            arr[l]=r;
        }
        else
        {
            int gg=0;
            int c=0;
            int ans=0;
            for(int i=l;i<=r;i++)
            {
                int s=i,e=r,m;
                int lst=i;
                if(arr[i]==1)continue;
                while(s<=e)
                {
                    m=(s+e)/2;
                    if(ggcd(i,m)>1)
                    {
                        s=m+1;
                        lst=m;
                    }
                    else
                    {
                        e=m-1;
                    }
                }
                ans+=lst-i+1;
            }

            cout<<ans<<endl;
        }
    }
}
int32_t main(){
	int t=1;
    ios_base::sync_with_stdio(0);cin.tie(0);cout.tie(0);
   // cin>>t;
	while(t--){solve();}
	return 0;
}

Compilation message (stderr)

garaza.cpp: In function 'void solve()':
garaza.cpp:45:17: warning: unused variable 'gg' [-Wunused-variable]
   45 |             int gg=0;
      |                 ^~
garaza.cpp:46:17: warning: unused variable 'c' [-Wunused-variable]
   46 |             int c=0;
      |                 ^

• Subtask 1: 0 / 40
• Subtask 2: 0 / 40
• Subtask 3: 0 / 40
• Subtask 4: 0 / 40