Find 2nd Largest Integer using IF

[Guest_imported]

Hi, if a user enters 7 integers. How do I find the second largest integer. Thanks

 

[Guest_imported]

#define GET_MAX(X) if (X >=MAX1) Max1 = X;else if (X <MAX1 && X>=Max2) Max2 = X;

if (A >= B) {
Max1 = A; Max2 = B;
}else {
Max1 = B; Max2 = A;
}
GET_MAX(C)
GET_MAX(D)
GET_MAX(E)
GET_MAX(F)
GET_MAX(G)

 

[Guest_imported]

hi, could you explain how that code works? I'm not understanding it's layout. Thanks

 

[Guest_imported]

Assume Max1 and Max2 are the variables used to store the largest and the second largest integers.

first you compare A and B and put the bigger one into Max1 and the other one into Max2.
For the next integer C, compare it with Max1 and Max2. If C is no less than Max1, then C is the largest so far and Max1 is updated to C. Max2 stays unchanged. If C is less than Max1 but no less than Max2, then C is the second largest so far and Max2 is updated to C and Max1 stays unchanged. Otherwise if C is less than Max2, Max1 and Max2 keep unchanged.
Following the same logic with D to G, you will get the global largest and second largest Max1 and Max2.