제출 #147592

#제출 시각아이디문제언어결과실행 시간메모리
147592AlexPascu007Savrsen (COCI17_savrsen)C++98
120 / 120
1957 ms78640 KiB
#include <iostream> #include <cmath> using namespace std; long long a,b,i,j,sol,d[10000010]; int main() { cin>>a>>b; for (i=1;i<=b;i++) { for (j=2*i;j<=b;j+=i) d[j]+=i; if (i>=a) sol+=abs(i-d[i]); } cout<<sol; return 0; }
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