Consider a C++ function of the form:

int f(const int a[], int b[]) {
int c[] { 0, 1, 2 };
// ...
return c[0] + c[1] + c[2];
}

Which of the following possibilities to complete the code of f is valid (does not cause a compilation error) after the declaration of c and before the return instruction?

Question

Consider a C++ function of the form:
 
 int f(const int a[], int b[]) {
   int c[] { 0, 1, 2 };
   // ...
   return c[0] + c[1] + c[2];
}
 
 Which of the following possibilities to complete the code of  f  is valid (does not cause a compilation error) after the declaration of  c  and before the  return  instruction?

Answer

for (int& v : c) v = a[v] + b[v]; 
 
for (int i = 0; i < 3; i++) a[i] = c[i];

Answer

for (int  v : a) c[0] += v; 
 
for (int& v : c) v = a[0];

Answer

for (int  v : b) c[0] += v; 
 
for (int& v : c) v = b[0];

Answer

for (int& v : c) v = a[v] + b[v]; 
 
for (int i = 0; i < 3; i++) b[i] = c[i];

Crowdly

Consider a C++ function of the form: int f(const int a[], int b[]) { int c...

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