Submission #1240980

#	Time	Username	Problem	Language	Result	Execution time	Memory
1240980		PlayVoltz	Savrsen (COCI17_savrsen)	C++20	120 / 120	767 ms	78672 KiB

savrsen

#include <cstdio>
#include <stdio.h>
#include <stdbool.h>
#include <iostream>
#include <map>
#include <vector>
#include <climits>
#include <stack>
#include <string>
#include <queue>
#include <algorithm>
#include <set>
#include <unordered_set>
#include <unordered_map>
#include <cmath>
#include <cctype>
#include <bitset>
#include <iomanip>
#include <cstring>
#include <numeric>
#include <cassert>
#include <random>
#include <chrono>
#include <fstream>
using namespace std;

#define int long long
#define pii pair<int, int>
#define mp make_pair
#define pb push_back
#define fi first
#define se second

int32_t main(){
	ios_base::sync_with_stdio(0);
	cin.tie(0);
	cout.tie(0);
	int a, b, res=0;
	cin>>a>>b;
	vector<int> ans(b+1, 1);
	ans[1]=0;
	for (int i=2; i<=b; ++i)for (int j=2*i; j<=b; j+=i)ans[j]+=i;
	for (int i=a; i<=b; ++i)res+=abs(i-ans[i]);
	cout<<res;
}

• Subtask 1: 120 / 120