oj.uz

답안 #975532

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
975532 2024-05-05T12:31:10 Z vjudge1 Trol (COCI19_trol) C++17
30 / 50
 1 ms 500 KB 
#include <bits/stdc++.h>
using namespace std;

int main(){
	int q;cin>>q;
	int ans[q];
	for(int k=0;k<q;k++){
		int l,r;cin>>l>>r;
		int kanan,kiri;
		int x=(r/9)*9;
		int x45=(r/9)*45;
		int cnt1=0;
		for(int i=x+1;i<=r;i++){
			if(i%9!=0){
				cnt1+=i%9;	
			}else{
				cnt1+=9;
			}
		}
		kanan=x45+cnt1;
		
		int cnt2=0;
		x=((l-1)/9)*9;
		x45=((l-1)/9)*45;
		for(int i=x+1;i<=l-1;i++){
			if(i%9!=0){
				cnt2+=i%9;	
			}else{
				cnt2+=9;
			}
		}
		kiri=x45+cnt2;
		
		ans[k]=kanan-kiri;
	}
	
	for(int i=0;i<q;i++){
		cout<<ans[i]<<endl;
	}
	
	return 0;
}

Subtask #1
30.0 / 50.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 348 KB Output is correct
2 Correct 1 ms 348 KB Output is correct
3 Incorrect 0 ms 348 KB Output isn't correct
4 Correct 1 ms 500 KB Output is correct
5 Incorrect 1 ms 348 KB Output isn't correct