Submission #1322090

#	Time	Username	Problem	Language	Result	Execution time	Memory
1322090		wangzhiyi33	Trol (COCI19_trol)	C++20	50 / 50	0 ms	332 KiB

trol

#include <bits/stdc++.h>
using namespace std;
#pragma GCC optimize("O3,unroll-loops")
#define int long long
#define ii pair<int,int>
#define fir first
#define sec second
#define pb push_back

signed main(){
    ios_base::sync_with_stdio(0);
    cin.tie(0);cout.tie(0);
    int tc;
    cin>>tc;
    while(tc--){
        int l,r;
        cin>>l>>r;
        int brp=(r-l+1)/9;
        int sisa=(r-l+1)-brp*9;

        int ans=brp*45;
        int cur=l%9;
        
        for(int q=1;q<=sisa;q++){
            if(cur==0)cur=9;
            ans+=cur;
            cur++; cur%=9;
        }
        cout<<ans<<endl;
    }
}

• Subtask 1: 50 / 50