ДЗ 27.09.22

/*
1
int main(){
    int sum, n, x, xt, k = 0;
    cout << "Amount of numbers: ";
    cin >> n;
    for(int i = 1; i<=n; i++)
    {
        cin >> x;
        xt = x;
        while(xt != 0)
        {
            if(xt%10 == 7){sum += x;}
            xt = xt / 10;
            k++;
        }
        k = 0;
    }
    cout << "Res: " << sum;
}
2
int main(){
    int sum, n, x, xt, k = 0;
    cout << "Amount of numbers: ";
    cin >> n;
    for(int i = 1; i <= n; i++)
    {
        cin >> x;
        xt = x;
        while(xt > 0)
        {
            sum += xt%10;
            xt /= 10;
        }
        if(sum%2==0){k++;}
    }
    cout << "Res: " << k;
}
3
int main(){
    int n, x, xt, check = 0, c=1, k = 0;
    cout << "Amount of numbers: ";
    cin >> n;
    for(int i = 1; i <= n; i++)
    {
        cin >> x;
        while(c != x)
        {
            if(x%c==0){check++;}
            c++;
        }
        c = 2;
        if(check == 0){k++;}
        check = 0;
    }
    cout << "Res: " << k;
}
4
int main(){
    int n, sum, x, xt, c=1, k;
    cout << "Amount of numbers: ";
    cin >> n;
    for(int i = 1; i <= n; i++)
    {
        cin >> x;
        while(c < x)
        {
            if(x%c==0){sum += c;}
            if(sum == x){k++; break;}
            c++;
        }
        c = 1;
        sum = 0;
    }
    cout << "Res: " << k;
}
5 - сумма же делителей по модулю?
int main(){
    int P = 1, a, b, sum, x, c = 1;
    cin >> a;
    while(b!=1)
    {
        cin >> b;
        while(c!=b)
        {
            if(b%c==0){sum += c;}
            c++;
        }
        c = 1;
        if(a < 0 && sum < 10){P *= a;}
        sum = 0;
        a = b;
    }
    cout << "Res: " << P;
}
6
int main(){
    int n, sum=0, x, xt, S;
    cout << "Amount of numbers: ";
    cin >> n;
    for(int i = 1; i<=n; i++)
    {
        cin >> x;
        xt = abs(x);
        while(xt != 0)
        {
            sum += xt%10;
            xt /= 10;
        }
        if(sum == 10){S += x;}
        sum = 0;

    }

    cout << "Res: " << S;
}
8
int main(){
    int x, k=0, xt, sum;
    while(x != 2)
    {
        cin >> x;
        xt = abs(x);
        while(xt != 0)
        {
            sum += xt % 10;
            xt /= 10;
        }
        if(sum % 5 == 0){k++;}
        sum = 0;
    }
    if(k>=3){cout << "+";}else{cout << "-";}
}
7
int main(){
    int n, xt, x, k=0;
    cout << "Amount of numbers: ";
    cin >> n;
    for(int i = 1; i <= n; i++)
    {
        cin >> x;
        xt = abs(x);
        while(xt != 0)
        {
            if(xt%10 == 4){k++; break;}
            xt /= 10;
        }
    }
    if(k>=3 && k <= 5){cout << "+";}else{cout << "-";}

}
9
int main(){
    int x=1, sum, max=0, xt;
    while(x!=0)
    {
        cin >> x;
        xt = abs(x);
        while(xt!=0)
        {
            sum += xt%10;
            xt /= 10;
        }
        if(sum>14 && x>max){max = x;}
        sum = 0;
    }
    cout << "Res: ";
    cout << max;

}
*/