func_code_string: #include <bits/stdc++.h>   using namespace std;   const int MAXN = 2e5 + 1;   int a[MAXN], pre[MAXN], num[MAXN];   int main() {     int n, m;     cin >> n >> m;     int i;     int Biggest = -1, Smallest = 0x7ffffff;     for (i = 1; i <= n; i++) {       cin >> a[i];       Biggest = max(Biggest, a[i]);       Smallest = min(Smallest, a[i]);       num[a[i] - 1]++;     }     if (Biggest == Smallest) {       cout << 0 << endl;       return 0;     }     for (i = Biggest - 1; i >= Smallest; i--) {       pre[i] = pre[i + 1] + num[i];     }     int ans = 1;     int now = 0;     for (i = Biggest; i >= Smallest; i--) {       now += pre[i];       if (now > m) {         now = pre[i];         ans++;       }     }     cout << ans << endl;     return 0;   }   