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답안 #147591

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
147591 2019-08-30T07:57:50 Z nicolaalexandra Savrsen (COCI17_savrsen) C++14
120 / 120
 1972 ms 78664 KB 
#include <iostream>
#define DIM 10000010
using namespace std;
int i,j,a,b;
long long sol,d[DIM];
int main (){

    for (i=2;i<DIM/2;i++){
        for (j=i+i;j<DIM;j+=i)
            d[j] += i;
    }

    cin>>a>>b;
    for (i=a;i<=b;i++){
        if (i == 1)
            sol++;
        else sol += max (i-d[i]-1,1+d[i]-i);
    }
    cout<<sol;


    return 0;
}

Subtask #1
120.0 / 120.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1885 ms 78664 KB Output is correct
2 Correct 1972 ms 78628 KB Output is correct
3 Correct 1872 ms 78628 KB Output is correct
4 Correct 1968 ms 78660 KB Output is correct
5 Correct 1907 ms 78624 KB Output is correct
6 Correct 1958 ms 78628 KB Output is correct
7 Correct 1906 ms 78636 KB Output is correct
8 Correct 1895 ms 78632 KB Output is correct