Submission #249499

#	Time	Username	Problem	Language	Result	Execution time	Memory
249499		shafinalam	Trol (COCI19_trol)	C++14	50 / 50	1 ms	256 KiB

trol

#include <bits/stdc++.h>

using namespace std;
typedef long long ll;

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

    while(T--)
    {
        ll l, r;
        cin >> l >> r;
        ll sum = 0;
        while(l<=r && (l%9)!=1)
        {
            ll x = l%9;
            if(x==0) x = 9;
            sum+=x;
            l++;
        }
        while(r>=l && (r%9)!=0)
        {
            sum+=(r%9);
            r--;
        }
        if(r-l+1>0)
        {
            ll len = (r-l+1)/9;
            sum+=(len*45);
        }
        cout << sum << '\n';
    }
    return 0;
}

Compilation message (stderr)

trol.cpp: In function 'int main()':
trol.cpp:9:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     scanf("%d", &T);
     ~~~~~^~~~~~~~~~

• Subtask 1: 50 / 50