Problem p03649 (C++)

Buggy submission (status: Time Limit Exceeded):
/*
;<+111===1?=1=zzzzvI==llllltttttttrrrrrrrvvwXzzzzzzzzzzzzzzzzzzzzzzzzzzzuUXwzzXXzvvvvvvvvXXwrrrrrrrrttz-_...............
:;;;;;;;;;;;<<?<+??=====lllzOtOZOtttttrrrrw0vvzzzzzzzuuuuuuuuuuuuuuuuuuuuuuXWXXXUXzzzzwwvvvwUwvvrrrrrrttt+_.............
;:;:;;;;;<<<-(<<<<?<z1?===zOOOlllttttttrrrdXvzzzzzuuuuuXWXuuuuuuuuuuuuuuuuuuuWkuUyWXvOzXzzzvvzXwvrrrrrrrttO-~......`..`.
;;;;;;;+<~(<<~(<(?<+I??==zwOOOllllltttrwOrwkZwXuzuuuuuuuuXWkZuZZuuZZuZZuuuuuuuuuuuXSI1wkzvvvvvvwXwvrrrrrtttO_~..........
;>;>>+z<(+><<+<<?<(zI?==z0OZlllllltttrwIzrrXv+OWuuuuuuuZZZZZyWWkZyZZZZyZZZZZZZZuuuuXk?wkzzzvvvvrvZXrrrrZzttto~~~..~.....
>>>>jI+wI+=1z<+==1zdZllzZOZttltltttrwVOwvzzuWXzvWuZZZZZyyyWfWWyyWWWkVVyWWVyyyyZZZZZX0zXkuuzzvvvvrrrrrrtrzdO1z>~~~~.~.~..
>??zwZwOtOOtlttOOtOXWyrdkdrrrrrrvwwVOwuXWSuZWXWyvWXyyyyyyyVVVVWHWppWWkkWkWHWVyyyyyyXkXWWkXuuuzzvvvvrrrzzOzXy?O-~~~.~~.~~
??jZzzXzw0vrvwXvvwzXqHkWHkuuzuXXZXwXXWgHWZZyWyyWWAXWWVffffWffppHWppppppppppHkpffffWWWHyyHHXZZZuXXuuuuuzOOwwZkzI~~~~~~.~.
??1?=XXXSuXXZuuuuZZXHg@WHHyXkpWWkHH@HHHVyVVVWHffffWWWHWpppWbppbHMHbppppHWpbpbHWbpWHHpHWpW@NkWHWykXWXyZyZkwwXyXWc~~~~~~~~
???=zW0WWWyyyyyyyyVVW@@@@MHpWWH@M@HHppHppfpppHpppHpppWHmHbWHbbkHH@HkbbkbHHkkkkHHkkkkkHNkHHHNWHHpppkWHWpppppkXpffk+-~~~~~
1zuwXWyVVVVWWWWHpffppWMHH@HHHbbbWH@NkpHHppppWUHbbHkbbbkbbHHHkkmkHUMMHkkkqMMHqkkkHHqqqMMqM###MHMqkkkkHWHHHkqqkqqkkWpk&J_~
OOOOOOOWffKXppWMWbbpbbkHHHHNkkkkHHHHHHHXHHHHHmXHkHHkkkkkkkkHkkgkHKXXMNHHHHHWMNHgHHHHHM#H###N##MmggggmggHHH@HHgggHHHHqbpf
=====llWfpSdHbHHMHkkkkqMHHH#MHHHHMMZXHkuV4bbHXZ?HbHqkkbkkkkHHkHWkH_?4UWHqkHHXZWMHmMMMNNMNNNNNNMgg@H@@@@MNMMMMMM@MMgqR:::
==l=lllZWWktWkHMHHNHqqqMH#H#HMHqqkHuu<4kw(dWRw>~_4pHVHbbbbbbHWD?ZWn.__?OXWHqeJ?TXWHMN#MWMNNNNNM@@@M@@@@MNMM@MNNMM#HHq2::
llll=llldWRtOWkMH##HNHmM####HN1JWHHHHH#####HHMHms~?W21ZWfppppH$.._?l_jdHH#NNMNN#MMMM##NNgNMNNM@@@MM@@MMMMMMMMNNN#M2?4R::
lllllllllZWyttWHMM####MNM####N<WH#TC<dMMMM#NaJJJ<?!.?_.._?TWWXt.`..
~._<jMMMMNNMNmm2<1w#MMNMM@@@MM@HMNMNNMNMNNN$7MP;;=::
llllllllllOUOttZHkHMH#NNN###HHr(HN-..(MBUMMMMHWK..````````` ?7wl.````..`
WUZHMMMMWM$._dM3dM@@@MMHMMMMNMMNNMN#M#<;?<:::::
tltllllllllllllttXkrVM#NNNN##HN,_~7-..(S,..+zOd'`.``.```.`````` ````````.
?+._+zXV^.(?<(Hg@MMMMMNMMMNMNNMM#6?d3;::::::::
ttltlllllllllllllltttdHNNNNN#HMBH&...-..
_~~~~.`````````````````````.``.`````___.._.-JVY=dHNNMNNMNNMNNMB6?>;;;:::::::::~
tttttllllllllllllltttdM##NNN#HMc....```````````.``.``.````.``````````````.`````.`.._....~dH#NNMNMMMM#E??>;;;;:::::::::~:
rtttttttltllllllltlttwgHMNNNN#HMx.....`.````.````````````.._```````````.``.`.``.``.`....(M#NNMMM@@M@Mz?>>;;;;:::::::::::
rrtttttttltllltttllttrmHMMNNNN#HMe_..`.`.`.``.`````.``.``````````````.`````.`.`..`....-+M#NNMM@@@@M@R?>>;;;;;;;:;:::::::
rrrrttttttttttlttttttrWHM@MNNNN#MNO--..``.`````.``.`````````.`.`.`.```.`.``````....._(WBW#M@@@@@@@M@R??>>;;;;;:;::::::::
rrrrrrttttttlttltttttrdM@@MNMNNN#MOlz1--.....`.``````.``.`.``````.`.`.``.`.......-(g9C==d#M@@@@@@@M@R?>>>>;;;;;;;;;:::::
rrrrrrrrttttttttttttrrdM@@MNNMNN#MZll==z1(-...`..`.``.`.` ....
.```.`.`......-(JWH9====zMM@@@H@H@@H@0??>>>>;;;;;;;;;;::;
vvvrrrrrrrrttttttttttrwMg@MMMMMNNH0tlll===?z1+--.....`.`.`.``..`...`....-((gMHHM8=====ldHM@@@@@@@@MgR=??>>>>>>;;;;;;;;;;
vrvrrrrrrrrrrrttttrrrrrdgg@MNMMNN#Rrtllll=======WHa-.-....`..`.....-((+WHHHWyy#Il====lldM@@H@@H@@@HgR=??>>>>>>>>>;;;;;;;
vrvvrrrrrtttrtrrtrtttrrdgggMN@MNN#Krtllllllll=lldkuuXUUG&---.-((JzuuuZZZyyyyyXRlllllllld@@@@@H@@@@MgS==???>>>>>>>;>>>;>;
vrvrrrrrrrrrttrttrrrrrrdHggM#@MNN##rtttllllllllltWuuZuuuuuuuuZuZZZZZZyyyyyyyyXSllllllltWg@@@HW@@@MMg0==?????>>>>>>>>>>>>
rrrrrrrrtrrtrttrtttrtrrdHqggMHHNN#NrtttttlltlllltdkuZZZZZZZZZZZZZZyZyyyyyyyyyWRtllllltdgg@@HHW@@@MgHI==????>??>>>>>>>>>>
rrrrrrrrttttttttttttttrwHkqqHMXM##MwrttttttttttttwKuuZZZZZZZZZZZZZZZZZZZyyyyyyHAwtttttdgggmHXHqmMHqKl=?????>??>??>??>???
vvvrrrtrtttttrttttttttrwHkkkkkkWHHHkrrtttOwwwwXUuXWuuuZuZZZZZZZZZZZZZZZZZZZZyyyyyyWWyqHHHkHZdXWHMkHS===??????????>??????
rrrrrtttttrttttttttttttrWpppppRZMHHkwXUUXvvvzzzzuuuuuuuuuuuuZuuZZZZZZZZZZZZZZZZZZZZZXHHHkH0wXSXHppW7?<11zz???>>?>??>?>??
rrrrrttttttllllzz??<<?v!jyVVXWfZdHMr1wwrvvvvvzzzzzzuuuuuuuuuuuuuuuuZZZZZZZZZZZZZZZZZWHSHkSdSXdWffV%~~~~~~<-__<??<<??>???
rrrtrttttv<!````````.?...UZyXZVWwM@b`
?1OZXUUUUUUUZZXkXuuZuuuuuuZuZXXXkkXXyyWWWWWUWH9=(HHXkHXHbpff~~~.~~~~(-````.``._?<z
rrrtttz^_`````.``.``.!...jZykXdfWX@H-...._?zrrvvzzuuuuuUUuuuuuuZXUuuuuuuuuuuuuuzVOV:.(WHWqqWqkkpW>~~~~~~~~~(-.``.```.`..
*/

#include <bits/stdc++.h>
#include <functional>
#include <iomanip>
using namespace std;

#define int long long
#define pb push_back
#define F first
#define S second
#define FOR(i, a, b) for (int(i) = (a); (i) < (b); (i)++)
#define rep(i, n) FOR(i, 0, n)
#define all(a) (a).begin(), (a).end()
#define rall(a) (a).rbegin(), (a).rend()
#define ve vector
#define vi vector<int>
#define vp vector<pair<int, int>>
#define vvi vector<vector<int>>

template <typename T> using pq = priority_queue<T, vector<T>, greater<T>>;
using ll = long long;
ll INF = LLONG_MAX / 4000 - 100;
ll mod = 1e9 + 7;
int dx[] = {-1, 0, 1, 0}, dy[] = {0, 1, 0, -1};
vector<ll> prime;

class fact {
public:
  int fmod = 1e9 + 7;
  vector<int> fac, inv;
  fact(int n, int Mod = 1e9 + 7) {
    fmod = Mod;
    fac = vector<int>(n, 0);
    inv = vector<int>(n, 0);
    fac[0] = 1;
    for (int i = 1; i < n; i++)
      fac[i] = fac[i - 1] * i % fmod;
    for (int i = 0; i < n; i++)
      inv[i] = fact::POW(fac[i], fmod - 2);
  }
  ll nCr(ll n, ll r) {
    if (n < r)
      return 0;
    return (fac[n] * inv[r] % fmod) * inv[n - r] % fmod;
  }
  ll POW(ll a, ll b) {
    ll c = 1;
    while (b > 0) {
      if (b & 1) {
        c = a * c % fmod;
      }
      a = a * a % fmod;
      b >>= 1;
    }
    return c;
  }
  inline int operator[](int i) { return fac[i]; }
};

template <class T = ll> T in() {
  T x;
  cin >> x;
  return (x);
}
void DEBUG(vector<int> a) {
  for (int i = 0; i < a.size(); i++)
    cout << a[i] << " ";
  cout << endl;
}
void EMP(int x) { cout << "!!!" << x << "!!!" << endl; }
ll GCD(ll a, ll b) {
  ll c;
  while (b != 0) {
    c = a % b;
    a = b;
    b = c;
  }
  return a;
}
ll LCM(ll a, ll b) { return (a / GCD(a, b)) * (b / GCD(a, b)) * GCD(a, b); }
ll POW(ll a, ll b) {
  ll c = 1;
  while (b > 0) {
    if (b & 1) {
      c = a * c % mod;
    }
    a = a * a % mod;
    b >>= 1;
  }
  return c;
}
void PRI(ll n) {
  bool a[n + 1LL];
  for (int i = 0; i < n + 1LL; i++) {
    a[i] = 1LL;
  }
  for (int i = 2; i < n + 1LL; i++) {
    if (a[i]) {
      prime.pb(i);
      ll b = i;
      while (b <= n) {
        a[b] = 0;
        b += i;
      }
    }
  }
}
template <typename T> T chmin(T &a, T b) {
  if (a > b)
    a = b;
  return a;
}
template <typename T> T chmax(T &a, T b) {
  if (a < b)
    a = b;
  return b;
}
bool isSqrt(ll a) { return pow(sqrt(a), 2) == a ? 1 : 0; }
void YesNo(bool a) {
  if (a)
    cout << "Yes";
  else
    cout << "No";
  cout << endl;
}
void yesno(bool a) {
  if (a)
    cout << "yes";
  else
    cout << "no";
  cout << endl;
}
void YESNO(bool a) {
  if (a)
    cout << "YES";
  else
    cout << "NO";
  cout << endl;
}
double dis(int x1, int x2, int y1, int y2) {
  return sqrt((double)abs(x1 - x2) * (double)abs(x1 - x2) +
              (double)abs(y1 - y2) * (double)abs(y1 - y2));
}

bool solve() {
  int n;
  cin >> n;
  int a[n];
  rep(i, n) { cin >> a[i]; }

  int ans = 0;
  rep(i, 1000000) {
    rep(j, n) {
      int del = a[j] / n;
      ans += del;
      a[j] -= del * n;
      rep(k, n) {
        if (j != k)
          a[k] += del;
      }
    }
  }

  cout << ans << endl;
}

signed main() {
  cin.tie(0);
  ios::sync_with_stdio(false);
  solve();
}


Fixed submission:
/*
;<+111===1?=1=zzzzvI==llllltttttttrrrrrrrvvwXzzzzzzzzzzzzzzzzzzzzzzzzzzzuUXwzzXXzvvvvvvvvXXwrrrrrrrrttz-_...............
:;;;;;;;;;;;<<?<+??=====lllzOtOZOtttttrrrrw0vvzzzzzzzuuuuuuuuuuuuuuuuuuuuuuXWXXXUXzzzzwwvvvwUwvvrrrrrrttt+_.............
;:;:;;;;;<<<-(<<<<?<z1?===zOOOlllttttttrrrdXvzzzzzuuuuuXWXuuuuuuuuuuuuuuuuuuuWkuUyWXvOzXzzzvvzXwvrrrrrrrttO-~......`..`.
;;;;;;;+<~(<<~(<(?<+I??==zwOOOllllltttrwOrwkZwXuzuuuuuuuuXWkZuZZuuZZuZZuuuuuuuuuuuXSI1wkzvvvvvvwXwvrrrrrtttO_~..........
;>;>>+z<(+><<+<<?<(zI?==z0OZlllllltttrwIzrrXv+OWuuuuuuuZZZZZyWWkZyZZZZyZZZZZZZZuuuuXk?wkzzzvvvvrvZXrrrrZzttto~~~..~.....
>>>>jI+wI+=1z<+==1zdZllzZOZttltltttrwVOwvzzuWXzvWuZZZZZyyyWfWWyyWWWkVVyWWVyyyyZZZZZX0zXkuuzzvvvvrrrrrrtrzdO1z>~~~~.~.~..
>??zwZwOtOOtlttOOtOXWyrdkdrrrrrrvwwVOwuXWSuZWXWyvWXyyyyyyyVVVVWHWppWWkkWkWHWVyyyyyyXkXWWkXuuuzzvvvvrrrzzOzXy?O-~~~.~~.~~
??jZzzXzw0vrvwXvvwzXqHkWHkuuzuXXZXwXXWgHWZZyWyyWWAXWWVffffWffppHWppppppppppHkpffffWWWHyyHHXZZZuXXuuuuuzOOwwZkzI~~~~~~.~.
??1?=XXXSuXXZuuuuZZXHg@WHHyXkpWWkHH@HHHVyVVVWHffffWWWHWpppWbppbHMHbppppHWpbpbHWbpWHHpHWpW@NkWHWykXWXyZyZkwwXyXWc~~~~~~~~
???=zW0WWWyyyyyyyyVVW@@@@MHpWWH@M@HHppHppfpppHpppHpppWHmHbWHbbkHH@HkbbkbHHkkkkHHkkkkkHNkHHHNWHHpppkWHWpppppkXpffk+-~~~~~
1zuwXWyVVVVWWWWHpffppWMHH@HHHbbbWH@NkpHHppppWUHbbHkbbbkbbHHHkkmkHUMMHkkkqMMHqkkkHHqqqMMqM###MHMqkkkkHWHHHkqqkqqkkWpk&J_~
OOOOOOOWffKXppWMWbbpbbkHHHHNkkkkHHHHHHHXHHHHHmXHkHHkkkkkkkkHkkgkHKXXMNHHHHHWMNHgHHHHHM#H###N##MmggggmggHHH@HHgggHHHHqbpf
=====llWfpSdHbHHMHkkkkqMHHH#MHHHHMMZXHkuV4bbHXZ?HbHqkkbkkkkHHkHWkH_?4UWHqkHHXZWMHmMMMNNMNNNNNNMgg@H@@@@MNMMMMMM@MMgqR:::
==l=lllZWWktWkHMHHNHqqqMH#H#HMHqqkHuu<4kw(dWRw>~_4pHVHbbbbbbHWD?ZWn.__?OXWHqeJ?TXWHMN#MWMNNNNNM@@@M@@@@MNMM@MNNMM#HHq2::
llll=llldWRtOWkMH##HNHmM####HN1JWHHHHH#####HHMHms~?W21ZWfppppH$.._?l_jdHH#NNMNN#MMMM##NNgNMNNM@@@MM@@MMMMMMMMNNN#M2?4R::
lllllllllZWyttWHMM####MNM####N<WH#TC<dMMMM#NaJJJ<?!.?_.._?TWWXt.`..
~._<jMMMMNNMNmm2<1w#MMNMM@@@MM@HMNMNNMNMNNN$7MP;;=::
llllllllllOUOttZHkHMH#NNN###HHr(HN-..(MBUMMMMHWK..````````` ?7wl.````..`
WUZHMMMMWM$._dM3dM@@@MMHMMMMNMMNNMN#M#<;?<:::::
tltllllllllllllttXkrVM#NNNN##HN,_~7-..(S,..+zOd'`.``.```.`````` ````````.
?+._+zXV^.(?<(Hg@MMMMMNMMMNMNNMM#6?d3;::::::::
ttltlllllllllllllltttdHNNNNN#HMBH&...-..
_~~~~.`````````````````````.``.`````___.._.-JVY=dHNNMNNMNNMNNMB6?>;;;:::::::::~
tttttllllllllllllltttdM##NNN#HMc....```````````.``.``.````.``````````````.`````.`.._....~dH#NNMNMMMM#E??>;;;;:::::::::~:
rtttttttltllllllltlttwgHMNNNN#HMx.....`.````.````````````.._```````````.``.`.``.``.`....(M#NNMMM@@M@Mz?>>;;;;:::::::::::
rrtttttttltllltttllttrmHMMNNNN#HMe_..`.`.`.``.`````.``.``````````````.`````.`.`..`....-+M#NNMM@@@@M@R?>>;;;;;;;:;:::::::
rrrrttttttttttlttttttrWHM@MNNNN#MNO--..``.`````.``.`````````.`.`.`.```.`.``````....._(WBW#M@@@@@@@M@R??>>;;;;;:;::::::::
rrrrrrttttttlttltttttrdM@@MNMNNN#MOlz1--.....`.``````.``.`.``````.`.`.``.`.......-(g9C==d#M@@@@@@@M@R?>>>>;;;;;;;;;:::::
rrrrrrrrttttttttttttrrdM@@MNNMNN#MZll==z1(-...`..`.``.`.` ....
.```.`.`......-(JWH9====zMM@@@H@H@@H@0??>>>>;;;;;;;;;;::;
vvvrrrrrrrrttttttttttrwMg@MMMMMNNH0tlll===?z1+--.....`.`.`.``..`...`....-((gMHHM8=====ldHM@@@@@@@@MgR=??>>>>>>;;;;;;;;;;
vrvrrrrrrrrrrrttttrrrrrdgg@MNMMNN#Rrtllll=======WHa-.-....`..`.....-((+WHHHWyy#Il====lldM@@H@@H@@@HgR=??>>>>>>>>>;;;;;;;
vrvvrrrrrtttrtrrtrtttrrdgggMN@MNN#Krtllllllll=lldkuuXUUG&---.-((JzuuuZZZyyyyyXRlllllllld@@@@@H@@@@MgS==???>>>>>>>;>>>;>;
vrvrrrrrrrrrttrttrrrrrrdHggM#@MNN##rtttllllllllltWuuZuuuuuuuuZuZZZZZZyyyyyyyyXSllllllltWg@@@HW@@@MMg0==?????>>>>>>>>>>>>
rrrrrrrrtrrtrttrtttrtrrdHqggMHHNN#NrtttttlltlllltdkuZZZZZZZZZZZZZZyZyyyyyyyyyWRtllllltdgg@@HHW@@@MgHI==????>??>>>>>>>>>>
rrrrrrrrttttttttttttttrwHkqqHMXM##MwrttttttttttttwKuuZZZZZZZZZZZZZZZZZZZyyyyyyHAwtttttdgggmHXHqmMHqKl=?????>??>??>??>???
vvvrrrtrtttttrttttttttrwHkkkkkkWHHHkrrtttOwwwwXUuXWuuuZuZZZZZZZZZZZZZZZZZZZZyyyyyyWWyqHHHkHZdXWHMkHS===??????????>??????
rrrrrtttttrttttttttttttrWpppppRZMHHkwXUUXvvvzzzzuuuuuuuuuuuuZuuZZZZZZZZZZZZZZZZZZZZZXHHHkH0wXSXHppW7?<11zz???>>?>??>?>??
rrrrrttttttllllzz??<<?v!jyVVXWfZdHMr1wwrvvvvvzzzzzzuuuuuuuuuuuuuuuuZZZZZZZZZZZZZZZZZWHSHkSdSXdWffV%~~~~~~<-__<??<<??>???
rrrtrttttv<!````````.?...UZyXZVWwM@b`
?1OZXUUUUUUUZZXkXuuZuuuuuuZuZXXXkkXXyyWWWWWUWH9=(HHXkHXHbpff~~~.~~~~(-````.``._?<z
rrrtttz^_`````.``.``.!...jZykXdfWX@H-...._?zrrvvzzuuuuuUUuuuuuuZXUuuuuuuuuuuuuuzVOV:.(WHWqqWqkkpW>~~~~~~~~~(-.``.```.`..
*/

#include <bits/stdc++.h>
#include <functional>
#include <iomanip>
using namespace std;

#define int long long
#define pb push_back
#define F first
#define S second
#define FOR(i, a, b) for (int(i) = (a); (i) < (b); (i)++)
#define rep(i, n) FOR(i, 0, n)
#define all(a) (a).begin(), (a).end()
#define rall(a) (a).rbegin(), (a).rend()
#define ve vector
#define vi vector<int>
#define vp vector<pair<int, int>>
#define vvi vector<vector<int>>

template <typename T> using pq = priority_queue<T, vector<T>, greater<T>>;
using ll = long long;
ll INF = LLONG_MAX / 4000 - 100;
ll mod = 1e9 + 7;
int dx[] = {-1, 0, 1, 0}, dy[] = {0, 1, 0, -1};
vector<ll> prime;

class fact {
public:
  int fmod = 1e9 + 7;
  vector<int> fac, inv;
  fact(int n, int Mod = 1e9 + 7) {
    fmod = Mod;
    fac = vector<int>(n, 0);
    inv = vector<int>(n, 0);
    fac[0] = 1;
    for (int i = 1; i < n; i++)
      fac[i] = fac[i - 1] * i % fmod;
    for (int i = 0; i < n; i++)
      inv[i] = fact::POW(fac[i], fmod - 2);
  }
  ll nCr(ll n, ll r) {
    if (n < r)
      return 0;
    return (fac[n] * inv[r] % fmod) * inv[n - r] % fmod;
  }
  ll POW(ll a, ll b) {
    ll c = 1;
    while (b > 0) {
      if (b & 1) {
        c = a * c % fmod;
      }
      a = a * a % fmod;
      b >>= 1;
    }
    return c;
  }
  inline int operator[](int i) { return fac[i]; }
};

template <class T = ll> T in() {
  T x;
  cin >> x;
  return (x);
}
void DEBUG(vector<int> a) {
  for (int i = 0; i < a.size(); i++)
    cout << a[i] << " ";
  cout << endl;
}
void EMP(int x) { cout << "!!!" << x << "!!!" << endl; }
ll GCD(ll a, ll b) {
  ll c;
  while (b != 0) {
    c = a % b;
    a = b;
    b = c;
  }
  return a;
}
ll LCM(ll a, ll b) { return (a / GCD(a, b)) * (b / GCD(a, b)) * GCD(a, b); }
ll POW(ll a, ll b) {
  ll c = 1;
  while (b > 0) {
    if (b & 1) {
      c = a * c % mod;
    }
    a = a * a % mod;
    b >>= 1;
  }
  return c;
}
void PRI(ll n) {
  bool a[n + 1LL];
  for (int i = 0; i < n + 1LL; i++) {
    a[i] = 1LL;
  }
  for (int i = 2; i < n + 1LL; i++) {
    if (a[i]) {
      prime.pb(i);
      ll b = i;
      while (b <= n) {
        a[b] = 0;
        b += i;
      }
    }
  }
}
template <typename T> T chmin(T &a, T b) {
  if (a > b)
    a = b;
  return a;
}
template <typename T> T chmax(T &a, T b) {
  if (a < b)
    a = b;
  return b;
}
bool isSqrt(ll a) { return pow(sqrt(a), 2) == a ? 1 : 0; }
void YesNo(bool a) {
  if (a)
    cout << "Yes";
  else
    cout << "No";
  cout << endl;
}
void yesno(bool a) {
  if (a)
    cout << "yes";
  else
    cout << "no";
  cout << endl;
}
void YESNO(bool a) {
  if (a)
    cout << "YES";
  else
    cout << "NO";
  cout << endl;
}
double dis(int x1, int x2, int y1, int y2) {
  return sqrt((double)abs(x1 - x2) * (double)abs(x1 - x2) +
              (double)abs(y1 - y2) * (double)abs(y1 - y2));
}

bool solve() {
  int n;
  cin >> n;
  int a[n];
  rep(i, n) { cin >> a[i]; }

  int ans = 0;
  rep(i, 100000) {
    rep(j, n) {
      int del = a[j] / n;
      ans += del;
      a[j] -= del * n;
      rep(k, n) {
        if (j != k)
          a[k] += del;
      }
    }
  }

  cout << ans << endl;
}

signed main() {
  cin.tie(0);
  ios::sync_with_stdio(false);
  solve();
}