2

#include <iostream>
#include <iomanip>
#include <time.h>
using namespace std;
const int n=10;

int main()
{
    float a[n],sum,min,min2;
    for (int i=0; i<n; i++){
            a[i] = rand() %100 - 55;
            cout << a[i] << " ";
    }
    cout <<endl;
    for (int i=0; i<n; i++){
        if (a[i]<0){
            min=i+1;
            break;
        }
    }
     for (int i=0; i<n; i++){
        if (a[i]<0){
            min2=i;
        }
    }
    for (int i=min;i<min2;i++){
        sum+=a[i];
    }
    cout<<sum;
    cout <<endl;

    return 0;
}