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답안 #891713

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
891713 2023-12-23T17:12:17 Z ind1v Savrsen (COCI17_savrsen) C++11
120 / 120
 797 ms 78928 KB 
#include <bits/stdc++.h>

using namespace std;

// #define int long long

#define sz(x) (int)((x).size())
#define all(x) (x).begin(), (x).end()

const int N = 1e7 + 1;

long long d[N];
int a, b;
long long c;

int32_t main() {
  ios::sync_with_stdio(false);
  cin.tie(0);
  cin >> a >> b;
  for (int i = 1; i <= b; ++i) {
    for (int j = max(2 * i, i * (a / i)); j <= b; j += i) {
      d[j] += i;
    }
  }
  for (int i = a; i <= b; ++i) {
    c += abs(i - d[i]);
  }
  cout << c;
  return 0;
}

Subtask #1
120.0 / 120.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 2 ms 2692 KB Output is correct
4 Correct 49 ms 27228 KB Output is correct
5 Correct 746 ms 74424 KB Output is correct
6 Correct 797 ms 78928 KB Output is correct
7 Correct 738 ms 74308 KB Output is correct
8 Correct 126 ms 21084 KB Output is correct