제출 #1252567

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
1252567		nicecoder37	Trol (COCI19_trol)	C++20	50 / 50	0 ms	328 KiB

trol

#pragma GCC optimize("O3,unroll-loops")
#pragma GCC target("avx,avx2,fma")
#include <bits/stdc++.h>
#define fast ios_base::sync_with_stdio(false),cin.tie(NULL),cout.tie(NULL)
#define fi first
#define se second
#define space " "
#define endl "\n"
#define gcd __gcd
#define mp make_pair
#define pb push_back
#define pf push_front
#define lb lower_bound
#define ub upper_bound
#define md 1000000007
#define inf 1000000000
#define li 500005
#define int long long
using namespace std;
int T,Q,n,m,k,a[li];
string s,t;
vector<int> v;
int32_t main(){
	scanf("%lld",&T);
	while(T--){
		scanf("%lld %lld",&n,&m);
		int sayi=m-n+1,cev=0;
		if(sayi<=50){
			for(int i=n;i<=m;i++){
				if(i%9==0) cev+=9;
				else cev+=i%9;
			}
		}
		else{
			for(int i=n;i<=m;i++){
				if(i%9==0) cev+=9;
				else cev+=i%9;
				if(i%9==0) break;
			}
			for(int i=m;i>=n;i--){
				if(i%9==0) cev+=9;
				else cev+=i%9;
				if(i%9==1) break;
			}
			if(m%9==0) sayi-=9;
			else sayi-=m%9;
			if(n%9==0) sayi-=1;
			else sayi-=9-(n%9)+1;
			cev+=sayi*5;
		}
		printf("%lld\n",cev);
	}
	return 0;
}

컴파일 시 표준 에러 (stderr) 메시지

trol.cpp: In function 'int32_t main()':
trol.cpp:24:14: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   24 |         scanf("%lld",&T);
      |         ~~~~~^~~~~~~~~~~
trol.cpp:26:22: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   26 |                 scanf("%lld %lld",&n,&m);
      |                 ~~~~~^~~~~~~~~~~~~~~~~~~

• Subtask 1: 50 / 50