#include <iostream>
#include <iomanip>
using namespace std;
int main()
{
setlocale(LC_ALL, "rus");
const int MatrixSize = 3;
int ourMatrix[MatrixSize][MatrixSize] = {};
int rowSum[MatrixSize] = {}; // для записи суммы по строкам
int columnSum[MatrixSize] = {}; // ... по столбцам
cout << "Заполните матрицу " << MatrixSize << 'х' << MatrixSize << " числами построчно.\n";
for (int rowNum = 0; rowNum < MatrixSize; rowNum++)
{
for (int columnNum = 0; columnNum < MatrixSize; columnNum++)
{
cout << rowNum + 1 << "-я строка ";
cout << columnNum + 1 << "-й столбец: ";
cin >> ourMatrix[rowNum][columnNum];
}
cout << endl;
}
// вывод на экран + подсчет суммы
for (int rowNum = 0; rowNum < MatrixSize; rowNum++)
{
cout << " | ";
for (int columnNum = 0; columnNum < MatrixSize; columnNum++)
{
cout << setw(4) << ourMatrix[rowNum][columnNum] << " ";
rowSum[rowNum] += ourMatrix[rowNum][columnNum];
columnSum[rowNum] += ourMatrix[columnNum][rowNum];
}
cout << "|" << endl;
}
cout << "\nСумма по строкам!\n";
for (int i = 0; i < MatrixSize; i++)
{
cout << i + 1 << "-я строка: " << rowSum[i] << endl;
}
cout << "\nСумма по столбцам!\n";
for (int i = 0; i < MatrixSize; i++)
{
cout << i + 1 << "-й столбец: " << columnSum[i] << endl;
}
return 0;
}
3 a task
#include
#include
#include
using namespace std;
int main()
{
setlocale(0, “”);
const int rows = 5;
const int cols = 10;
int arr[rows][cols] = {};
int arr_rows[rows] = {};
int max = 0;
int number_row = 0;
srand(time(NULL));
for (int i = 0; i < rows; i )
{
for (int j = 0; j < cols; j )
{
arr[i][j] = 10 + rand() % 91;
arr_rows[i] += arr[i][j];
}
}
//matrix output
for (int i = 0; i < rows; i )
{
cout << endl;
for (int j = 0; j < cols; j )
{
cout << setw(4) << arr[i][j];
}
}
//outputting an array with sums of strings and finding the maximum
for (int i = 0; i < rows; i )
{
cout << "\nСумма " << i+1 << "-й строки = " << arr_rows[i] < max)
{
max = arr_rows[i];
number_row = i;
}
}
cout << "\nМаксимальная сумма элементов в строке номер " << number_row+1 << endl;
return 0;
}
Help solve the task
Given a two-dimensional array of dimension [n, m], randomly filled. Replace all elements of the first three
columns into their squares.
#include
#include
using namespace std;
int main()
{
setlocale(LC_ALL,(“rus”));
const int row = 3;
const int cols = 4;
int sqare = 0;
int arr[row][cols] = {};
srand(time(NULL));
for (int i = 0; i < row; i )
{
cout << "|";
for (int j = 0; j < cols; j )
{
arr[i][j] = rand() % 10;
cout << arr[i][j] << " ";
}
cout << "|" << endl;
}
cout << endl;
for (int i = 0; i < row; i )
{
cout << "|" ;
for (int j = 0; j < 3; j ++ )
{
arr[i][j] *= arr[i][j];
cout << arr[i][j] << " ";
}
cout << "|" << endl;
}
cout << endl;
return 0;
}
#include
#include
using namespace std;
int main()
{
srand(time(NULL));
setlocale(LC_ALL, “ru”);
const int row = 5;
const int col = 5;
int arr[row][col]{};
int c_row[row]{};
int max = 0;
int max_row = 0;
for (int i = 0; i < row; i )
{
for (int j = 0; j < col; j )
{
arr[i][j] = 10 + rand() % 91;
cout << arr[i][j] << " | ";
c_row[i] += arr[i][j];
}cout << endl;
}
for (int i = 0; i < row; i )
{
cout << "Сумма элементов в " << i + 1 << " row " << c_row[i] << endl;
if (max < c_row[i])
{
max = c_row[i];
max_row++;
}
}cout << "Максимальная сумма элементов находится на "<<max_row<<" string and is equal to: " << max << endl;
return 0;
}
help solve please
Given a two-dimensional array of dimension [n, m], randomly filled. Replace all elements of the first three
columns into their squares.
Help solve the task.
Given a two-dimensional array of dimension [n, m], randomly filled. Replace all elements of the first three
columns into their squares.
Help to solve .
Given a two-dimensional array. Define: is there a negative element in the given array.
srand(time(nullptr));
const int length = 5;
int numbers[length][length];
int negative_numbers = 0;
for (size_t i = 0; i < length; i )
{
for (size_t j = 0; j < length; j )
{
numbers[i][j] = -5 + rand() % 26;
cout << numbers[i][j] << " ";
if (j == 4)
{
cout << endl;
}
}
}
for (size_t i = 0; i < length; i )
{
for (size_t j = 0; j < length; j )
{
if (numbers[i][j] < 0)
{
negative_numbers++;
}
}
}
if (negative_numbers == 0)
{
cout << "The negative numbers not found…" << endl;
}
else
{
cout << "Number of negative numbers = " << negative_numbers << endl;
}
Please help me solve the problem!
This rectangular matrix A of dimension n × m. Arrange the columns of the matrix in ascending order of the elements of the kth row (1≤ k ≤n).
help solve please. Find the number of positive elements lying on the main diagonal of a square matrix.
help solve, two-dimensional arrays in c ++. examples
Help!adana square matrix, consisting of nxn elements. The matrix contains different values. You must remove the same elements from the matrix.