Submission #1172763

#	Time	Username	Problem	Language	Result	Execution time	Memory
1172763		hewfhlwejfl	Trol (COCI19_trol)	C++20	0 / 50	2 ms	5004 KiB

trol

#include <bits/stdc++.h>
using namespace std;
#define endl '\n'
#define pll pair<long long, long long>
#define ppl pair<pll, long long>
#define ll long long
#define se second
#define fi first
#define pb push_back
ll T,n,nq,a[1001009],m,p,cyc,cmp,k,b[1001009],bn,r,res,y,vis1[4000009],vis[4000009],x,ma[400009],l;
string s,s1[9],t;
vector<ll>re;
vector<ll>g[100009],cc[100009];
int main()
{
    ios_base::sync_with_stdio(0);cin.tie(0);cout.tie(0);
    //freopen("paintbarn.in", "r", stdin);
	//freopen("paintbarn.out", "w", stdout);

	//freopen("cereal.in", "r", stdin);
	//freopen("cereal.out", "w", stdout);


	cin>>T;
	while(T--)
    {
        cin>>l>>r;
        res=0;
        res+=(r-l+1)/9;
        res*=45;
        if((l-1)/9==(r-1)/9)
        {
            ll l1=l%9;
            if(!l1)l1=9;
            ll r1=r%9;
            if(!r1)r1=9;
            res+=(r1+l1)*(r1-l1+1)/2;
        }
        else
        {
            x=r%9;
            if(!x)x=9;
            res+=(1+x)*(x)/2;
            x=9-l%9;
            if(!(l%9))x=9;
            res+=(x+9)*(9-x+1)/2;
        }

        cout<<res<<endl;
    }

    //for(int i=1;i<=n;i++)cout<<a[i]<<endl;
    return 0;
}

• Subtask 1: 0 / 50