Submission #976747

#	Time	Username	Problem	Language	Result	Execution time	Memory
976747		vjudge1	Trol (COCI19_trol)	C++17	30 / 50	1 ms	348 KiB

trol

#include <bits/stdc++.h>
using namespace std;
int jumlah(int x){
	int ans=45*(x/9);
	if(x%9!=0){
		for(int i=x%9; i>0; i--){
			ans+=i;
		}
	}
	return ans;
}
int main(){
	int Q,maks=0;
	cin>>Q;
	unsigned long long L[Q],R[Q];
	for(int i=0; i<Q; i++){
		int ans=0;
		cin>>L[i]>>R[i];
		cout<<jumlah(R[i])-jumlah(L[i]-1)<<endl;
		
	}
}

Compilation message (stderr)

trol.cpp: In function 'int main()':
trol.cpp:17:7: warning: unused variable 'ans' [-Wunused-variable]
   17 |   int ans=0;
      |       ^~~
trol.cpp:13:8: warning: unused variable 'maks' [-Wunused-variable]
   13 |  int Q,maks=0;
      |        ^~~~

• Subtask 1: 30 / 50