Submission #40985

#	Time	Username	Problem	Language	Result	Execution time	Memory
40985		Hassoony	Savrsen (COCI17_savrsen)	C++14	120 / 120	1511 ms	39716 KiB

savrsen

#include<bits/stdc++.h>
#include<unordered_map>
using namespace std;
typedef long long ll;
typedef double D;
const ll inf=(1ll<<61);
const int mod=1e9+7;
const int MX=1e7+9;
const int SQ=350;
int A,B,F[MX];
int main(){
    scanf("%d%d",&A,&B);
    for(int i=1;i<=B;i++){
        for(int j=i+i;j<=B;j+=i)
            F[j]+=i;
    }
    ll ans=0;
    for(int i=A;i<=B;i++){
        ans+=(abs(i-F[i]));
    }
    cout<<ans<<endl;
}

Compilation message (stderr)

savrsen.cpp: In function 'int main()':
savrsen.cpp:12:24: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     scanf("%d%d",&A,&B);
                        ^

• Subtask 1: 120 / 120