Submission #288342

#	Time	Username	Problem	Language	Result	Execution time	Memory
288342		Lawliet	Trol (COCI19_trol)	C++17	50 / 50	1 ms	288 KiB

trol

#include <bits/stdc++.h>

using namespace std;
typedef long long int lli;

lli getValue(lli k)
{
	if( k%9 != 0 ) return k%9;
	return 9;
}

int main()
{
	int n;
	scanf("%d",&n);

	while( n-- )
	{
		lli L, R;
		scanf("%lld %lld",&L,&R);

		lli ans = 0;

		while( L%9 != 1 && L <= R )
			ans += getValue( L++ );

		while( R%9 != 0 && L <= R )
			ans += getValue( R-- );

		lli sz = (R - L + 1)/9;
		ans += sz*45;

		printf("%lld\n",ans);
	}
}

Compilation message (stderr)

trol.cpp: In function 'int main()':
trol.cpp:15:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   15 |  scanf("%d",&n);
      |  ~~~~~^~~~~~~~~
trol.cpp:20:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   20 |   scanf("%lld %lld",&L,&R);
      |   ~~~~~^~~~~~~~~~~~~~~~~~~

• Subtask 1: 50 / 50