Ответы на вопрос:
на с++ как то так
#include< iostream> #include< ctime>
using namespace std;
int main(){ srand(time(null)); int n, a, sum = 0, ten = 10, index = 0; int *arr; cout < < "enter size of arr(enter n) : "; cin > > n; arr = new int [n]; for(int i = 1; i < = n; i++) arr[i] = rand()%25;
cout < < "arr : " < < endl; for(int i = 1; i < = n; i++) cout < < arr[i] < < " " ; cout < < endl;
cout < < "enter a : " ; cin > > a;
for(int i = 1; i < = n; i++) { if(arr[i] == a) index = i;
} if(index ! = 0) { for(int i = index + 1; i < = n; i++) sum = sum + arr[i]; } if(sum == 0) cout < < "result = " < < ten < < endl; else cout < < "result = " < < sum < < endl; }
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