Предмет: Математика, автор: yaroslavvlasenko18

спростіть вираз -3(х-5)+6х помогіте дам все​

Ответы

Автор ответа: 1Manka1
1
-3(х-5)+6х=-3х+15+6х=3х+15

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Decide whether these statements are true or false:

1. One day a man saw an old lady on the side of the road who

needed help.

2. The old lady was happy to see the man when he came up to her.

3. The man looked happy and rich.

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6.

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What goes around comes around

One day a man saw an old lady on the side of the road. He could see she needed help. So he pulled up in front of her Mercedes and got out.

Even with the smile on his face, she was worried. No one had stopped to help for the last hour or so. Was he going to hurt her? He didn't look safe; he looked poor and hungry.

He could see that she was frightened, standing out there in the cold. He knew how she felt.

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Well, all she had was a flat tire, but for an old lady, that was bad enough. Bryan crawled under the car. The ground was wet and cold but soon he was able to change the tire. But he had to get dirty and his hands hurt.

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• количество строк;


• количество столбцов.




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В функции main продемонстрировать работоспособность созданной функции сортировки.
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#include

using namespace std;
void sort(int** a, int** c, int n, int m) //функция сортировки
{
int r = 0;
int x, y;
int* z = new int[n * m];

for (int i = 0; i < m; i++) {
for (int j = 0; j < n; j++) {
z[r] = a[j][i];
r++;
}
}
for (int i = n * m - 1; i >= 0; i--) {
x = 1;
for (int j = 0; j < i; j++) {
if (z[j] > z[j + 1]) {
y = z[j];
z[j] = z[j + 1];
z[j + 1] = y;
x = 0;
}
}
if (x == 1)
break; //выход из цикла
}
r--;
for (int i = 0; i < n; i++) {
for (int j = 0; j < m; j++) {
c[i][j] = z[r];
r--;
}
}
}

int main() {
setlocale(LC_ALL, "Russian");
int n, m;
cout << "Введите размер массива ";//ввод размеров массив
cin >> n >> m;
int** a = new int* [n];
for (int i = 0; i < n; i++)
a[i] = new int[m];
int** c = new int* [n];
for (int i = 0; i < n; i++)
c[i] = new int[m];

for (int i = 0; i < n; i++)
for (int j = 0; j < m; j++)
a[i][j] = ((rand() % 10));
//изначальный рандомный массив
cout << "array" << endl << endl;
for (int i = 0; i < n; i++) {
for (int j = 0; j < m; j++)
cout << a[i][j] << " ";
cout << endl;
}
sort(a, c, n, m);
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cout << "sorted_array" << endl << endl;
for (int i = 0; i < n; i++) {
for (int j = 0; j < m; j++)
cout << c[i][j] << " ";
cout << endl;
}
cout << endl;
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for (int i = 0; i < n; i++)
delete[] a[i];
delete[] a;
for (int i = 0; i < n; i++)
//очистка памяти с
delete[] c[i];
delete[] c;
}
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