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답안 #466900

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
466900 2021-08-21T02:32:08 Z 1e9d Savrsen (COCI17_savrsen) C++14
120 / 120
 1550 ms 78608 KB 
#include <bits/stdc++.h>
using namespace std;

long long mp[10000001];
int main() {
    ios::sync_with_stdio(false);
    cin.tie(0);
    //freopen("ws.INP", "r", stdin);
	//freopen("ws.OUT", "w", stdout);

	memset(mp, 0, sizeof mp);
	int a, b; cin >> a >> b;
	long long res = 0;
    for (int i = 1; i <= b; i++) {
        mp[i] += i;
        if (i >= a) res += abs(mp[i]);
        for (int j = i * 2; j <= b; j += i)
            mp[j] -= i;
    } cout << res;
    return 0;
}

Subtask #1
120.0 / 120.0

# 결과 실행 시간 메모리 Grader output
1 Correct 39 ms 78532 KB Output is correct
2 Correct 40 ms 78508 KB Output is correct
3 Correct 41 ms 78532 KB Output is correct
4 Correct 1550 ms 78564 KB Output is correct
5 Correct 1532 ms 78608 KB Output is correct
6 Correct 1548 ms 78568 KB Output is correct
7 Correct 1415 ms 78592 KB Output is correct
8 Correct 334 ms 78572 KB Output is correct