code[vs] 1011 数的计算

/*作者:桦清_L*/#include <iostream>#include <string>#include <string.h>#include <vector>#include <math.h>using namespace std;void rec(int n,int *s){    if(n/2==0) return ;    *s+=n/2;    for(int i=1;i<=n/2;i++) rec(i,s);}int main(){    int n;    cin>>n;    int sum=1;    int *s=∑    rec(n,s);    cout<<sum<<endl;    return 0;}