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답안 #564293

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
564293 2022-05-18T21:28:40 Z faruk Savrsen (COCI17_savrsen) C++17
120 / 120
 825 ms 39468 KB 
#include <bits/stdc++.h>
#define pii pair<int, int>
#define ll long long
#define ld long double

using namespace std;

int main() {
    ios_base::sync_with_stdio(false);
    cin.tie(0);

    int b, a;
    cin >> a >> b;

    vector<int> sito(b + 1, 0);
    sito[1] = 1;

    for (int i = 2; i <= b; i++) {
        if (sito[i] != 0)
            continue;
        sito[i] = i + 1;
        for (int j = i * 2; j <= b; j += i) {
            int t = 0;
            int s = j;
            while (s % i == 0)
                s /= i, t++;
            
            if (sito[j / i] == 0 || sito[s] == 0)
                continue;
            sito[j] = sito[j / i] + sito[s] * (j / s);
        }
    }

    ll out = 0;
    for (int i = a; i <= b; i++) 
        out += abs(i - (sito[i] - i));
    cout << out << "\n";
}

Subtask #1
120.0 / 120.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 8 ms 724 KB Output is correct
4 Correct 825 ms 39380 KB Output is correct
5 Correct 819 ms 39468 KB Output is correct
6 Correct 811 ms 39464 KB Output is correct
7 Correct 749 ms 36308 KB Output is correct
8 Correct 208 ms 10324 KB Output is correct