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- #include <bits/stdc++.h>
- using namespace std;
- int main(){
- int n;
- scanf("%d",&n);
- long long int a[n+10];
- for(int i=0;i<n;++i){
- cin >> a[i];
- }
- for(int i=n-2;i>=0;--i){
- long long int x=a[i+1];
- if(x%a[i]==0){
- a[i]=a[i]*(x/a[i]);
- }
- else{
- a[i]=a[i]+(a[i]*(x/a[i]));
- }
- }
- cout << a[0];
- return 0;
- }
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