显示代码纯文本
#include<iostream>
#include<cstdio>
#include<cstring>
#include<vector>
using namespace std;
int n,sum=2;
int m,b,c,d;
int main()
{
freopen("nums.in","r",stdin);
freopen("nums.out","w",stdout);
scanf("%d",&n);
if(n<10){
//for(int i=0;i<n;i++)
m=n/2;
sum=sum+m;
if(m>=1){
b=m/2;
sum=b+sum;
}
if(b>=1){
c=b/2;
sum=sum+c;
}
if(c>=1){
d=c/2;
sum=sum+d;
}
}
else if(n<100){
m=(n%10)/2;
sum=sum+m;
if(m>=1){
b=m/2;
sum=b+sum;
}
if(b>=1){
c=b/2;
sum=sum+c;
}
if(c>=1){
d=c/2;
sum=sum+d;
}
}
else if(n<1000){
m=(n%100)/2;
sum=sum+m;
if(m>=1){
b=m/2;
sum=b+sum;
}
if(b>=1){
c=b/2;
sum=sum+c;
}
if(c>=1){
d=c/2;
sum=sum+d;
}
}
else{
sum=0;
}
printf("%d",sum);
}