oj.uz

답안 #258064

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
258064 2020-08-05T09:46:50 Z itiam Trol (COCI19_trol) C++11
50 / 50
 1 ms 256 KB 
#include <bits/stdc++.h>

using namespace std;

int main(){
    long long Q,r,l,ost,sl,sr,s;
    cin >> Q;
    for (int k=0;k<Q;k++){
        s=0;sl=0;sr=0;
        cin >> r >> l;
        r-=1;
        sl=(l/9)*45;
        for (int i=l%9;i>0;i--){    sl+=i;}
        sr=(r/9)*45;
        for (int i=r%9;i>0;i--){    sr+=i;}
        s=sl-sr;
        cout << s << endl;
    }
    return 0;
}

Compilation message

trol.cpp: In function 'int main()':
trol.cpp:6:21: warning: unused variable 'ost' [-Wunused-variable]
     long long Q,r,l,ost,sl,sr,s;
                     ^~~

Subtask #1
50.0 / 50.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 256 KB Output is correct
2 Correct 1 ms 256 KB Output is correct
3 Correct 1 ms 256 KB Output is correct
4 Correct 1 ms 256 KB Output is correct
5 Correct 1 ms 256 KB Output is correct