Submission #975270

#	Time	Username	Problem	Language	Result	Execution time	Memory
975270		vjudge1	Trol (COCI19_trol)	C++17	0 / 50	1 ms	348 KiB

trol

#include<bits/stdc++.h>
#define pii pair<int,int>
#define fi first
#define se second
#define int long long
using namespace std;
const int maxn=1e5+5;
signed main() {
	int q; cin>>q;
	while(q--) {
		int l,r; cin>>l>>r;
		if(l==r) cout<<l%9<<"\n";
		else {	
			int m=l%9;
			int p=9-m+1;
			double sum1=((double)p/(double)2)*(m+9);
			int o=l+9-m;
			int k=r-o; 
			int a;
			if(l==1)a=k/9-1;
			else a=k/9; 
			int sum2=(9*(10)/2)*a;
			int res=r%9;
			int sum3=res*(res+1)/2;
			cout<<sum1+sum2+sum3<<"\n";
		}
	}
}

• Subtask 1: 0 / 50