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답안 #884409

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
884409 2023-12-07T09:56:17 Z gutzzy Savrsen (COCI17_savrsen) C++14
60 / 120
 3000 ms 408 KB 
#include <bits/stdc++.h>
using namespace std;

long long f(int n){
    if(n==1) return 1;
    long long ans = n;
    for(int i=1;i<=sqrt(n);i++){
        if(n%i==0){
            ans -= i;
            if(i!=1 and i*i!=n){
                ans -= (n/i);
            }
        }
    }
    return abs(ans);
}

int main(){
    int a,b;
    cin >> a >> b;
    long long ans = 0;
    
    for(int i=a;i<=b;i++){
        ans += f(i);
    }
    
    cout << ans << endl;
    
}

Subtask #1
60.0 / 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 129 ms 408 KB Output is correct
4 Correct 20 ms 348 KB Output is correct
5 Execution timed out 3066 ms 348 KB Time limit exceeded
6 Execution timed out 3053 ms 348 KB Time limit exceeded
7 Execution timed out 3067 ms 348 KB Time limit exceeded
8 Execution timed out 3039 ms 348 KB Time limit exceeded