<!DOCTYPE HTML>
<html lang="ru">
<head>
<title>таблица 7х10</title>
<meta charset="utf-8">
</head>
<body>
<style>
table {border-collapse: collapse;}
td {border: 1px solid black; padding: 3px;}
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<table>
<tr>
<td>***</td><td>***</td><td>***</td><td>***</td><td>***</td><td>***</td><td>***</td>
</tr>
<tr>
<td>***</td><td>***</td><td>***</td><td>***</td><td>***</td><td>***</td><td>***</td>
</tr>
<tr>
<td>***</td><td>***</td><td>***</td><td>***</td><td>***</td><td>***</td><td>***</td>
</tr>
<tr>
<td>***</td><td>***</td><td>***</td><td>***</td><td>***</td><td>***</td><td>***</td>
</tr>
<tr>
<td>***</td><td>***</td><td>***</td><td>***</td><td>***</td><td>***</td><td>***</td>
</tr>
<tr>
<td>***</td><td>***</td><td>***</td><td>***</td><td>***</td><td>***</td><td>***</td>
</tr>
<tr>
<td>***</td><td>***</td><td>***</td><td>***</td><td>***</td><td>***</td><td>***</td>
</tr>
<tr>
<td>***</td><td>***</td><td>***</td><td>***</td><td>***</td><td>***</td><td>***</td>
</tr>
<tr>
<td>***</td><td>***</td><td>***</td><td>***</td><td>***</td><td>***</td><td>***</td>
</tr>
<tr>
<td>***</td><td>***</td><td>***</td><td>***</td><td>***</td><td>***</td><td>***</td>
</tr>
</table>
</body>
</html>
Объяснение:
#include <iostream>
#include <ctime>
#include <string>
using namespace std;
int main()
{
srand(time(NULL));
int rows, cols; // Розміри матриці
cout << "Enter n: ";
cin >> rows;
cout << "Enter m: ";
cin >> cols;
if (rows != cols) return 0; // Тільки в квадратній матриці є головна та побічна діагоналі
int a, b; // Межі випадкових чисел масиву
cout << "Enter a: ";
cin >> a;
cout << "Enter b: ";
cin >> b;
int Width = max(to_string(a).length(), to_string(b).length()) + 1; // Ширина для cout
int** arr = new int* [rows]; // Динамічний масив
for (int i = 0; i < rows; i++)
{
arr[i] = new int[cols];
}
cout << "n = " << rows << endl
<< "m = " << cols << endl
<< "Interval - [" << a << ";" << b << "]" << endl << endl
<< "Our matrix: " << endl;
for (int i = 0; i < rows; i++)
{
for (int j = 0; j < cols; j++)
{
arr[i][j] = a + rand() % (b - a + 1);
cout.width(Width); // Щоб було красиво
cout << arr[i][j];
}
cout << endl;
}
cout << endl;
int mainOdd = 0, mainEven = 0, sideOdd = 0, sideEven = 0;
for (int i = 0; i < rows; i++)
{
for (int j = 0; j < cols; j++)
{
if (i == j) (arr[i][j] % 2 == 0) ? mainEven++ : mainOdd++;
if (i + j == rows - 1) (arr[i][j] % 2 == 0) ? sideEven++ : sideOdd++;
}
}
int column, minSum;
for (int i = 0; i < cols; i++)
{
int sum = 0;
for (int j = 0; j < rows; j++)
{
sum += arr[j][i];
}
if (i == 0) { minSum = sum; column = i; }
else if (sum < minSum) { minSum = sum; column = i; }
}
cout << "---Main diagonal---" << endl
<< "Even numbers: " << mainEven << endl
<< "Odd numbers: " << mainOdd << endl;
cout << endl << "---Side diagonal---" << endl
<< "Even numbers: " << sideEven << endl
<< "Odd numbers: " << sideOdd << endl;
cout << endl << "Column number: " << column << " (counting from 0)" << endl;
for (int i = 0; i < rows; i++) // Звільнення динамічної пам'яті
{
delete[] arr[i];
}
delete[] arr;
}
