Программирование на С++

 #include  
#include  
using namespace std; 
int main() { 
    const size_t n = 11; 
    double box[n]; 
    double a, b; 
    cin >> a >> b; 
    auto dx = fabs(a - b) / (n - 1); 
    auto x = a; 
    box[0] = x; 
    for (size_t i = 1; i < n; ++i) { 
        x += a < b ? dx : -dx; 
        if (fabs(x) < 1e-14) x = 0; 
        box[i] = x; 
    } 
    for (auto x : box) cout << x << ' '; 
    puts(""); 
} 

 #include  
using namespace std; 
int main() { 
    const size_t n = 10000; 
    double box[n]; 
    size_t m; 
    cin >> m; 
    for (size_t i = 0; i < m; ++i) cin >> box[i]; 
    auto odd = 0.0; 
    auto even = 0.0; 
    for (size_t i = 0; i < m; ++i) { 
        (i & 1 ? odd : even) += box[i]; 
    } 
    cout << even << ' ' << odd <<'\n'; 
    puts(""); 
} 

 #include  
#include  
using namespace std; 
int main() { 
    const size_t n = 10000; 
    double x[n]; 
    double y[n]; 
    size_t m; 
    cin >> m; 
    for (size_t i = 0; i < m; ++i) cin >> x[i]; 
    for (size_t i = 0; i < m; ++i) cin >> y[i]; 
    auto s = 0.0; 
    for (size_t i = 0; i < m; ++i) s += x[i] * y[i]; 
    auto sum = s / m; 
    cout << sum << '\n'; 
    puts(""); 
} 

 #include  
#include  
using namespace std; 
int main() { 
    const size_t n = 10000; 
    double box[n]; 
    double y[n]; 
    size_t m; 
    cin >> m; 
    for (size_t i = 0; i < m; ++i) cin >> box[i]; 
    for (size_t i = 0, j = 1; j < m; i += 2, j += 2) { 
        if (box[i] * box[j] < 0) swap(box[i], box[j]); 
    } 
    for (size_t i = 0; i < m; ++i) cout << box[i] << ' '; 
    puts(""); 
} 

 #include  
#include  
using namespace std; 
int main() { 
    const size_t n = 10000; 
    double box[n]; 
    double y[n]; 
    size_t m; 
    cin >> m; 
    for (size_t i = 0; i < m; ++i) cin >> box[i]; 
    auto last = box[m - 1]; 
    for (size_t i = m - 1, j = m - 2; i != 0; --i, --j) { 
        box[i] = box[j]; 
    } 
    box[0] = last; 
    for (size_t i = 0; i < m; ++i) cout << box[i] << ' '; 
    puts(""); 
}