#include
#include
int main() {
const int N = 43;
int arr[ N ], buf[ N ], mean = 0;
int i, k;
srand(time(NULL));
for(i = 0; i < N; i++) {
arr[ i ] = (rand() % 100)+7;
buf[ i ] = arr [ i ];
mean += arr[ i ];
printf("%d ", arr[ i ]);
}
printf("\n");
k = 34;
for(i = 0; i < N; i++)
arr[ i ] = buf[ (i+k) % N ];
for(i = 0; i < N; i++)
printf("%d ", arr[ i ]);
printf("\nmean %f", (float)(mean/N));
mean/=N;
printf("\nindex: ");
for(i = 0; i < N; i++)
if ( abs(arr[ i ]-mean) < 5 )
printf("[%d]= %d ,", i, arr[ i ]);
return 0;
}