Language: C++

//include
//------------------------------------------
#include <vector>
#include <list>
#include <map>
#include <set>
#include <deque>
#include <stack>
#include <bitset>
#include <algorithm>
#include <functional>
#include <numeric>
#include <utility>
#include <sstream>
#include <iostream>
#include <iomanip>
#include <cstdio>
#include <cmath>
#include <cstdlib>
#include <cctype>
#include <string>
#include <cstring>
#include <ctime>

using namespace std;

//conversion
//------------------------------------------
inline int toInt(string s) {int v; istringstream sin(s);sin>>v;return v;}
template<class T> inline string toString(T x) {ostringstream sout;sout<<x;return sout.str();}

//math
//-------------------------------------------
template<class T> inline T sqr(T x) {return x*x;}

//typedef
//------------------------------------------
typedef vector<int> VI;
typedef vector<VI> VVI;
typedef vector<string> VS;
typedef pair<int, int> PII;
typedef long long LL;

//container util
//------------------------------------------
#define ALL(a)  (a).begin(),(a).end()
#define RALL(a) (a).rbegin(), (a).rend()
#define PB push_back
#define MP make_pair
#define SZ(a) int((a).size())
#define EACH(i,c) for(typeof((c).begin()) i=(c).begin(); i!=(c).end(); ++i)
#define EXIST(s,e) ((s).find(e)!=(s).end())
#define SORT(c) sort((c).begin(),(c).end())

//repetition
//------------------------------------------
#define FOR(i,a,b) for(int i=(a);i<(b);++i)
#define REP(i,n)  FOR(i,0,n)

//constant
//--------------------------------------------
const double EPS = 1e-10;
const double PI  = acos(-1.0);

//clear memory
#define CLR(a) memset((a), 0 ,sizeof(a))

//debug
#define dump(x)  cerr << #x << " = " << (x) << endl;
#define debug(x) cerr << #x << " = " << (x) << " (L" << __LINE__ << ")" << " " << __FILE__ << endl;

int main(){
    int a,b,c;
    cin >> a >> b >> c;
    int A[3];
    A[0]=a;
    A[1]=b;
    A[2]=c;
    sort(A,A+3);
    ing num=0;
    int min.max;
    min = A[0];
    max = A[2];
    if(min!=max){
        num=num+2;
    }
    if(min!=A[1] && max!=A[1]){
        ++num;
    }
    cout << num;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:80:5: error: 'ing' was not declared in this scope; did you mean 'int'?
   80 |     ing num=0;
      |     ^~~
      |     int
a.cc:81:12: error: expected initializer before '.' token
   81 |     int min.max;
      |            ^
a.cc:82:14: error: overloaded function with no contextual type information
   82 |     min = A[0];
      |              ^
a.cc:83:14: error: overloaded function with no contextual type information
   83 |     max = A[2];
      |              ^
a.cc:84:11: error: invalid operands of types '<unresolved overloaded function type>' and '<unresolved overloaded function type>' to binary 'operator!='
   84 |     if(min!=max){
      |        ~~~^~~~~
a.cc:85:9: error: 'num' was not declared in this scope; did you mean 'enum'?
   85 |         num=num+2;
      |         ^~~
      |         enum
a.cc:87:11: error: invalid operands of types '<unresolved overloaded function type>' and 'int' to binary 'operator!='
   87 |     if(min!=A[1] && max!=A[1]){
      |        ~~~^~~~~~
a.cc:87:24: error: invalid operands of types '<unresolved overloaded function type>' and 'int' to binary 'operator!='
   87 |     if(min!=A[1] && max!=A[1]){
      |                     ~~~^~~~~~
a.cc:88:11: error: 'num' was not declared in this scope; did you mean 'enum'?
   88 |         ++num;
      |           ^~~
      |           enum
a.cc:90:13: error: 'num' was not declared in this scope; did you mean 'enum'?
   90 |     cout << num;
      |             ^~~
      |             enum