Лабораторная работа №7

#include <iostream>
#include <math.h>
#include <iomanip>

using namespace std;




const unsigned int D = 5;
//const unsigned int DIM2 = 5;

int ary[D][D];

void task907()
{
    cout << "Задание №907\n";
    
int i;
int j;
int s[D];

    for (i = 1; i <= D; i++) {
        for (j = 1; j <= D; j++) {
            ary[i][j] = rand() % 10 ;
            cout << setw(5) << ary[i][j];
        }
        cout << endl;
    }
    for(i=1; i < D; i++)
    { 
    s[i]=0;
    for(j = 1; j<D-i+1; j++){ s[i] = s[i] +  ary[j+i][j]; }
    cout << "Сумма диагонали под № " << i << " = " << s[i] << endl;
    }
}

void task942()
{
    cout << "\nЗадание №942\n";
int i;
int j;

cout << "Начальная матрица:" << endl;
    for (i = 1; i <= D; i++) {
        for (j = 1; j <= D; j++) {
            ary[i][j] = rand() % 10 ;
            cout << setw(5) << ary[i][j];
        }
        cout << endl;
    }
    cout << "\n"<< endl;


cout << "Конечная матрица:" << endl;
    for(i = 1; i<= D; i++){ ary[i][D-i+1] = 100; }
    
    for (i = 1; i <= D; i++) {
        for (j = 1; j <= D; j++) {
            cout << setw(5) << ary[i][j];
        }
        cout << endl;
    }    
    
}

void task977()
{
    cout << "\nЗадание №977\n";
int i;
int j;
int n;
int k;
    n = 1;
    
    for (k=1; k < D; k++)
    {
    for (i = k; i < D-k+2; i++) { ary[k][i] = n; n++;}
    for (j = k+1; j < D-k+2; j++) { ary[j][D-k+1] = n; n++;}
    for (i = D-k; i > k-1; i--) { ary[D-k+1][i] = n; n++;}
    for (j = D-k; j > k; j--) { ary[j][k] = n; n++;}
    }
    
    for (i = 1; i <= D; i++) {
        for (j = 1; j <= D; j++) {
            cout << setw(5) << ary[i][j];
        }
        cout << endl;
    }
}

void task1012()
{
    cout << "\nЗадание №1012\n";
int i;
int j;
int k;
int n;
int s;

    for (i = 1; i <= D; i++) {
        for (j = 1; j <= D; j++) {
            ary[i][j] = rand() % 10 ;
        }
     }
    k=7;//столбец
    n=5;//строка
    for (i = 1; i <= D; i++) {ary[i][n] = i;}
    for (j = 1; j <= D; j++) {ary[k][j] = j;} 
    ary[k][n] = 0;
    if(k < n) {ary[n][k+(n-k)] = 0; ary[n-(n-k)][k] = 0;}
    if(k > n) {ary[n+(k-n)][k] = 0; ary[n][k-(k-n)] = 0;}
     
    cout << endl;
    
    for (i = 1; i <= D; i++) {
        for (j = 1; j <= D; j++) 
        {
            cout << setw(5) << ary[i][j];
        }
        cout << endl;
    }
    s = 0;
    for (i = 1; i <= D; i++) 
       { 
    for (j = 1; j <= D; j++) 
          { 
        n=0;
    for (k = 1; k <= D; k++) 
             { 
          if(ary[i][k] == ary[k][j]) n++;
             }
     if(D == n) {cout <<"Cтрока " << i << " совпадает со столбцом " << j << endl; s++;}
          }
       }
    if(s == 0) {cout <<  "Совпадений не обнаружено "  << endl;}
}


void task1047()
{
    cout << "\nЗадание №1047\n"; 
    cout << "\nИсходная матрица\n";
int i;
int j;
int b[D];
    cout << endl;
    for (i = 1; i <= D; i++) {
        for (j = 1; j <= D; j++) {
            ary[i][j] = rand() % 10 ;
            cout << setw(5) << ary[i][j];
        }
        cout << endl;
    }
    cout << endl;
    
    
    cout << "\nЗадание а)"<< endl;
    
    
    for (i = 1; i <= D; i++){
        b[i] = ary[i][1];
        ary[i][1] = ary[i][5];
        ary[i][5] = b[i];
        }
        
    for (i = 1; i <= D; i++) {
        for (j = 1; j <= D; j++) {
            cout << setw(5) << ary[i][j];
        }
        cout << endl;    
    }
    
    
    
    cout << "\nЗадание б)"<< endl;
    
    
    for (j = 1; j <= D; j++){
        b[j] = ary[2][j];
        ary[2][j] = ary[5][j];
        ary[5][j] = b[j];
        
        }
    for (i = 1; i <= D; i++) {
        for (j = 1; j <= D; j++) {
            cout << setw(5) << ary[i][j];
        }
        cout << endl;    
    }
    
}


int main()
{
    
    task907();
    task942();
    task977();
    task1012();
    task1047();

}