below is my C++ code:
void test(int array[], int length) {
int index; // the index of heap array that human want to modify
int num; // the number of heap in the index position
cout << "input the index and num" << endl << flush;
string si,sj;
try{
cin >> si >> sj;
index = stoi(sj);
num = stoi(si);
}catch(std::exception e){
cout << "error, try again" << endl;
test(array, length);
}
if (index <= length && index > 0 && num > 0 && num <= array[index - 1]) {
array[index - 1] -= num;
// print(array, length);
} else {
cout << "error, try again" << endl;
test(array, length);
}
}
And now there is a shell to run this code, but in the shell, there exist input like below:
input the index and num 2 1
this is the correct one
input the index and num 2
it just have 1 value, and the program blocked here to wait for another input, i should figure that out and output "error, try again"
input the index and num 1 2 3
this is also incorrect because there are more than 2 input value. the same, I should figure that out and output "error, try again"
How to deal with this?
