Submission #258064

#	Time	Username	Problem	Language	Result	Execution time	Memory
258064		itiam	Trol (COCI19_trol)	C++11	50 / 50	1 ms	256 KiB

trol

#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 (stderr)

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 / 50