Submission #706600

#	Time	Username	Problem	Language	Result	Execution time	Memory
706600		YugiHacker	Trol (COCI19_trol)	C++14	50 / 50	1 ms	316 KiB

trol

#include<bits/stdc++.h>
#define el cout<<"\n"
#define f0(i,n) for(int i=0;i<n;++i)
#define f1(i,n) for(int i=1;i<=n;++i)
#define maxn
using namespace std;
int t;
long long l, r;
long long calc(long long n)
{
    long long x = n/9;
    long long ans = x * 45;
    n%=9;
    f1 (i, n) ans += i;
    return ans;
}
main()
{
    ios_base::sync_with_stdio(0);cin.tie(0);cout.tie(0);
    cin >> t;
    while (t--)
    {
        cin >> l >> r;
        cout << calc(r) - calc(l-1); el;
    }
}

Compilation message (stderr)

trol.cpp:17:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
   17 | main()
      | ^~~~

• Subtask 1: 50 / 50