题解

#include<cstdio>
#include<iostream>
#include<cmath>
using namespace std;
int main(){
int a,b;
double c=0.0;
cin>>a;
for(int i=1;i<=a;i++){
cin>>b;
if(b<=70)c=c+0.1;
else {
while(1){
b-=70;
c=c+0.1;
if(b<0)break;
}
}
}
cout<<c;
return 0;
}