#include
#include
using namespace std;
template
T input(const char* msg) {
T value{};
while (true) {
cout << msg;
cin >> value;
if (cin.fail()) {
cin.clear();
cin.ignore(0x1000, '\n');
} else {
cin.ignore(0x1000, '\n');
return value;
}
}
}
void fill_random(int* box, size_t n, int a, int b) {
if (a > b) swap(a, b);
uniform_int_distribution<> uid(a, b);
mt19937 gen{ random_device()() };
for (size_t i = 0; i < n; ++i) box[i] = uid(gen);
}
void show(int* box, size_t n) {
for (size_t i = 0; i < n; ++i) cout << box[i] << ' ';
puts("");
}
int main() {
auto n = input("Size array: ");
auto a = input("a: ");
auto b = input("b: ");
auto box = new int[n];
fill_random(box, n, a, b);
show(box, n);
delete[] box;
}
#include
using namespace std;
template
T input(const char* msg) {
T value{};
while (true) {
cout << msg;
cin >> value;
if (cin.fail()) {
cin.clear();
cin.ignore(0x1000, '\n');
} else {
cin.ignore(0x1000, '\n');
return value;
}
}
}
void show(int* box, size_t n) {
for (size_t i = 0; i < n; ++i) cout << box[i] << ' ';
puts("");
}
int main() {
auto n = input("Size array: ");
auto matrix = new int*[n];
for (size_t i = 0; i < n; ++i) matrix[i] = new int[n];
for (size_t i = 0; i < n; ++i) {
fill(matrix[i], matrix[i] + n, 1);
matrix[i][i] = 0;
}
for (size_t i = 0; i < n; ++i) show(matrix[i], n);
for (size_t i = 0; i < n; ++i) delete[] matrix[i];
delete[] matrix;
}
#include
static size_t fill_array_range(int *array,
int begin, int end)
{
size_t arr_size = 0;
auto append = [](size_t &size, int *arr,
int val) {
if (arr) {
arr[size] = val;
}
size++;
};
if (begin < end) {
for (; begin <= end; begin++) {
append(arr_size, array, begin);
}
}
else if (begin > end) {
for (; begin >= end; begin--) {
append(arr_size, array, begin);
}
}
else {
append(arr_size, array, begin);
}
return arr_size;
}
int main()
{
size_t array_size;
int *array;
int a, b;
int i;
std::cin >> a >> b;
array_size = fill_array_range(nullptr, a, b);
array = new int[array_size];
fill_array_range(array, a, b);
for (i = 0; i < array_size; i++) {
std::cout << array[i] << ' ';
}
std::cout << '\n';
return 0;
}
// -3 3
// -3 -2 -1 0 1 2 3
// 3 -3
// 3 2 1 0 -1 -2 -3
// 2 2
// 2
3. #include
int main()
{
int n, i, j, k;
int **array;
std::cin >> n;
if (n < 0) {
std::cerr << "order of matrix cannot be less than zero";
return -1;
}
array = new int*[n];
for (i = 0; i < n; i++) {
array[i] = new int[n];
for (j = 0; j < n; j++) {
if (i == j) {
array[i][j] = 0;
}
else {
array[i][j] = 1;
}
}
}
for (i = 0; i < n; i++) {
for (j = 0; j < n; j++) {
std::cout << array[i][j] << ' ';
}
std::cout << '\n';
delete[] array[i];
}
delete[] array;
return 0;
}