Preprocessors sometimes only do dull string replacement jobs but with amazing effects.
/* Enter your macros here */
#define toStr(a) #a
#define io(v) cin>>v
#define INF 1000000000
#define FUNCTION(name, op) inline void name(int& m, int& c) {m = (m op c) ? m : c;}
#define foreach(v, i) for(int i = 0; i < v.size(); i++)
#include <iostream>
#include <vector>
using namespace std;
#if !defined toStr || !defined io || !defined FUNCTION || !defined INF
#error Missing preprocessor definitions
#endif
FUNCTION(minimum, <)
FUNCTION(maximum, >)
int main(){
int n; cin >> n;
vector<int> v(n);
foreach(v, i) {
io(v)[i];
}
int mn = INF;
int mx = -INF;
foreach(v, i) {
minimum(mn, v[i]);
maximum(mx, v[i]);
}
int ans = mx - mn;
cout << toStr(Result =) <<' '<< ans;
return 0;
}