c++ 80分求助

#include <bits/stdc++.h>
using namespace std;

int main() {
    int a,b=0,c=0,d=0;
    cin>>a;
    for (int  i = 1; i <= a; ++i) {
        cin>>b;
        if(b>c){
            c=b;
        }
        d=d+b;
    }
    cout<<d-c;
    return 0;
}