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답안 #856097

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
856097 2023-10-02T16:36:45 Z vjudge1 Savrsen (COCI17_savrsen) C++17
0 / 120
 723 ms 131072 KB 
//author: Ahmet Alp Orakci
#include <bits/stdc++.h>
using namespace std;
using i64 = long long;

const int MAXN = 1E7 + 5;

i64 res[MAXN];
i64 pref[MAXN];

void precalc() {
    for(int i = 1; i < MAXN; i++) {
        for(int j = i; j < MAXN; j += i) {
            res[j] += i;
        }

        pref[i] = abs(res[i] - 2 * i);
    }

    for(int i = 1; i < MAXN; i++)
        pref[i] += pref[i -1];
}

#define ONLINE_JUDGE
void solve() {
    int a, b;
    cin >> a >> b;

    cout << pref[b] - pref[a -1];
    
    return;
}

signed main() {
    #ifndef ONLINE_JUDGE
        freopen(".in", "r", stdin);
        freopen(".out", "w", stdout);
    #endif

    precalc();

    ios_base::sync_with_stdio(false);
    cin.tie(NULL); cout.tie(NULL);

    int t = 1; //cin >> t;
    for(int i = 1; i <= t; i++) {
        solve();
    }

    return 0;
}

Subtask #1
0 / 120.0

# 결과 실행 시간 메모리 Grader output
1 Runtime error 708 ms 131072 KB Execution killed with signal 9
2 Runtime error 711 ms 131072 KB Execution killed with signal 9
3 Runtime error 700 ms 131072 KB Execution killed with signal 9
4 Runtime error 703 ms 131072 KB Execution killed with signal 9
5 Runtime error 705 ms 131072 KB Execution killed with signal 9
6 Runtime error 711 ms 131072 KB Execution killed with signal 9
7 Runtime error 723 ms 131072 KB Execution killed with signal 9
8 Runtime error 715 ms 131072 KB Execution killed with signal 9