Submission #86429

#	Time	Username	Problem	Language	Result	Execution time	Memory
86429		Pluton	Savrsen (COCI17_savrsen)	C++14	0 / 120	146 ms	688 KiB

savrsen

#include <bits/stdc++.h>

#define ld long double
#define ll long long
#define sz size()
#define all(xx) xx.begin(),xx.end()
#define pb push_back
#define in insert
#define er erase
#define S second
#define F first
#define pii pair <int, int>
#define to_be continue
#define mp make_pair
#define stop exit (0)
#define fname ""
#define speed ios_base::sync_with_stdio(0);cin.tie(0)
#define input freopen (fname".in", "r", stdin)
#define output freopen (fname".out", "w", stdout)
#define int ll
#define N 10200000

using namespace std;

const int inf = 1e9 + 123;
const ll INF = 1e18 + 123;
const double pi = acos (-1.0);
const ld eps = 1e-3;

ll a, b, ans, cur;

main ()
{
	speed;
	cin >> a >> b;
	for (ll i = 1; i <= N; i ++)
	{                                   
		if ((b / i) - 1 <= 0)
			break;  
		if (!max (((a - 1ll) / i), 0ll))
			ans += i * (max (((b / i) - max (((a - 1ll) / i), 0ll) - 1), 0ll));
		else
			ans += i * (max (((b / i) - max (((a - 1ll) / i), 0ll)), 0ll));
	}
	for (ll j = a; j <= b; j ++)
		cur += j;
	cout << abs (cur - ans);
}
//Coded by A....

Compilation message (stderr)

savrsen.cpp:32:7: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
 main ()
       ^

• Subtask 1: 0 / 120