lab7_908
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#include <iostream>
using namespace std;
int main() {
const int n = 4 ;
int a[n][n];
for (size_t i = 0 ; i < n ; i++){
for (size_t j = 0 ; j < n ; j++){
a[i][j] = rand() % 10 ;
cout << a[i][j] << " ";
}
cout << endl ;
}
int sum = 0 ;
for (size_t i = 0 ; i < n ; i++){
for (size_t j = 0 ; j < n ; j++){
if ( i == j ){
sum += a[i][j];
}
}
}
cout << "1 - " << sum << endl ;
sum = 0 ;
for (size_t i = 0 ; i < n ; i++){
for (size_t j = 0 ; j < n ; j++){
if ( i == j-1 ){
sum += a[i][j];
}
}
}
cout << "2 - " << sum << endl ;
sum = 0 ;
for (size_t i = 0 ; i < n ; i++){
for (size_t j = 0 ; j < n ; j++){
if ( i == j-2 ){
sum += a[i][j];
}
}
}
cout << "3 - " << sum << endl ;
sum = 0 ;
for (size_t i = 0 ; i < n ; i++){
for (size_t j = 0 ; j < n ; j++){
if ( i == j-3 ){
sum += a[i][j];
}
}
}
cout << "4 - " << sum << endl ;
sum = 0 ;
return 0;
}
Cpp
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